Automated Malware Analysis IOC Report for

Files

File Path

Type

Category

Malicious

listing new.xlsx

CDFV2 Encrypted

initial sample

C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\ZAE7RW1P\raki[1].exe

PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive

downloaded

C:\Users\user\Desktop\~$listing new.xlsx

data

dropped

C:\Users\Public\vbc.exe

PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive

dropped

C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\19980AFC.png

PNG image data, 458 x 211, 8-bit/color RGB, non-interlaced

dropped

C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\5319FF63.png

PNG image data, 139 x 180, 8-bit colormap, non-interlaced

dropped

C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\5BA3143E.png

PNG image data, 139 x 180, 8-bit colormap, non-interlaced

dropped

C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\7E91C95F.png

PNG image data, 139 x 180, 8-bit colormap, non-interlaced

dropped

C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\84BE6A08.png

PNG image data, 150 x 150, 8-bit/color RGBA, non-interlaced

dropped

C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\948B366A.png

PNG image data, 139 x 180, 8-bit colormap, non-interlaced

dropped

C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\9B66BB27.png

PNG image data, 150 x 150, 8-bit/color RGBA, non-interlaced

dropped

C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\CED38AF1.emf

Windows Enhanced Metafile (EMF) image data version 0x10000

dropped

C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\F3B4F6CD.png

PNG image data, 413 x 220, 8-bit/color RGBA, non-interlaced

dropped

C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\F6B29269.png

PNG image data, 458 x 211, 8-bit/color RGB, non-interlaced

dropped

C:\Users\user\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\F9A84556.png

PNG image data, 413 x 220, 8-bit/color RGBA, non-interlaced

dropped

C:\Users\user\AppData\Local\Temp\forbrugersamfundet.dat

DOS executable (COM)

dropped

C:\Users\user\AppData\Local\Temp\gamer.txt

ASCII text, with very long lines, with no line terminators

dropped

C:\Users\user\AppData\Local\Temp\nsj734E.tmp\System.dll

PE32 executable (DLL) (GUI) Intel 80386, for MS Windows

dropped

C:\Users\user\AppData\Local\Temp\~DF4BE3E1CBE08654A7.TMP

data

dropped

C:\Users\user\AppData\Local\Temp\~DFBA4CF9152A1E9E13.TMP

data

dropped

C:\Users\user\AppData\Local\Temp\~DFD3BE83FE1AD51971.TMP

CDFV2 Encrypted

dropped

C:\Users\user\AppData\Local\Temp\~DFEB9B29E3F948747D.TMP

data

dropped

There are 12 hidden files, click here to show them.

Processes

Path

Cmdline

Malicious

C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE

"C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding

Details

Is windows:	true
Is dropped:	false
PID:	2668
Target ID:	2
Parent PID:	596
Name:	EQNEDT32.EXE
Path:	C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
Commandline:	"C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
Size:	543304
MD5:	A87236E214F6D42A65F5DEDAC816AEC8
Time:	12:36:43
Date:	21/01/2022
Reason:	newprocess
Reputation:	high
Is admin:	true
Is elevated:	true
Modulebase:	0x400000
Modulesize:	581632
Wow64:	true

Signature Hits	Behavior Group	Mitre Attack
Sigma detected: Droppers Exploiting CVE-2017-11882	System Summary
Sigma detected: EQNEDT32.EXE connecting to internet	Exploits
Sigma detected: File Dropped By EQNEDT32EXE	Exploits
Sigma detected: Execution from Suspicious Folder	System Summary
Office Equation Editor has been started	Exploits
Spawns processes	System Summary	Process Injection

C:\Users\Public\vbc.exe

"C:\Users\Public\vbc.exe"

Details

Is windows:	false
Is dropped:	true
PID:	2536
Target ID:	4
Parent PID:	2668
Name:	vbc.exe
Path:	C:\Users\Public\vbc.exe
Commandline:	"C:\Users\Public\vbc.exe"
Size:	145144
MD5:	E8FA2C6354DA839EB77D13EAADE691D2
Time:	12:36:45
Date:	21/01/2022
Reason:	newprocess
Reputation:	low
Is admin:	true
Is elevated:	true
Modulebase:	0x400000
Modulesize:	315392
Wow64:	true

Signature Hits	Behavior Group	Mitre Attack
Sigma detected: Droppers Exploiting CVE-2017-11882	System Summary
Drops PE files to the user root directory	Boot Survival	Masquerading
Office equation editor drops PE file	System Summary
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)	Exploits	Exploitation for Client Execution
Sigma detected: Execution from Suspicious Folder	System Summary
Creates a process in suspended mode (likely to inject code)	HIPS / PFW / Operating System Protection Evasion	Process Injection
Drops PE files	Persistence and Installation Behavior
Drops PE files to the user directory	Persistence and Installation Behavior	Masquerading
Spawns processes	System Summary	Process Injection

C:\Program Files\Microsoft Office\Office14\EXCEL.EXE

"C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /automation -Embedding

Details

Is windows:	true
Is dropped:	false
PID:	2664
Target ID:	0
Parent PID:	596
Name:	EXCEL.EXE
Class:	excel
Path:	C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
Commandline:	"C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /automation -Embedding
Size:	28253536
MD5:	D53B85E21886D2AF9815C377537BCAC3
Time:	12:36:20
Date:	21/01/2022
Reason:	newprocess
Reputation:	high
Is admin:	true
Is elevated:	true
Modulebase:	0x13fa30000
Modulesize:	28282880
Wow64:	false

Signature Hits	Behavior Group	Mitre Attack
Allocates a big amount of memory (probably used for heap spraying)	Software Vulnerabilities	Extra Window Memory Injection
Spawns processes	System Summary	Process Injection

URLs

Name

Malicious

http://50.16.4.125/E/raki.exe

50.16.4.125

https://dariamob.ro/wed/eee_XScUCMEVL

http://services.msn.com/svcs/oe/certpage.asp?name=%s&email=%s&&Check

unknown

http://www.windows.com/pctv.

unknown

http://investor.msn.com

unknown

http://www.msnbc.com/news/ticker.txt

unknown

http://www.icra.org/vocabulary/.

unknown

http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous.

unknown

http://investor.msn.com/

unknown

http://www.%s.comPA

unknown

http://nsis.sf.net/NSIS_ErrorError

unknown

http://windowsmedia.com/redir/services.asp?WMPFriendly=true

unknown

http://www.hotmail.com/oe

unknown

There are 3 hidden URLs, click here to show them.

IPs

Domain

Country

Malicious

50.16.4.125

unknown

United States

Details

IP:	50.16.4.125
TargetID:	2
Current Path:	C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
Country:	United States
Countrycode:	USA
ASN number:	14618
ASN name:	AMAZON-AESUS
Private:	false

Signature Hits	Behavior Group	Mitre Attack
Sigma detected: EQNEDT32.EXE connecting to internet	Exploits
Potential document exploit detected (performs HTTP gets)	Software Vulnerabilities	Exploitation for Client Execution
Potential document exploit detected (unknown TCP traffic)	Software Vulnerabilities	Exploitation for Client Execution
Uses a known web browser user agent for HTTP communication	Networking	Application Layer Protocol
Connects to IPs without corresponding DNS lookups	Networking
Downloads files from webservers via HTTP	Networking	Application Layer Protocol Non-Application Layer Protocol Ingress Tool Transfer

Registry

Path

Value

Malicious

HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\StartupItems

&%-

HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel

MTTT

HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\ReviewCycle

ReviewToken

HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\DocumentRecovery\2ED6B

2ED6B

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000100000000F01FEC\Usage

VBAFiles

HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\StartupItems

v,-

HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\DocumentRecovery\33801

33801

HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\DocumentRecovery\34B91

34B91

HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Place MRU

Max Display

HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Place MRU

Item 1