Automated Malware Analysis IOC Report for

Files

File Path

Type

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:	2760
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:	21:08:38
Date:	27/09/2021
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:	1612
Target ID:	4
Parent PID:	2760
Name:	vbc.exe
Path:	C:\Users\Public\vbc.exe
Commandline:	'C:\Users\Public\vbc.exe'
Size:	288145
MD5:	A9DCC61F31601E771050463C4D41CDB0
Time:	21:08:43
Date:	27/09/2021
Reason:	newprocess
Reputation:	low
Is admin:	true
Is elevated:	true
Modulebase:	0x400000
Modulesize:	229376
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
Injects a PE file into a foreign processes	HIPS / PFW / Operating System Protection Evasion	Process Injection
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
Uses a known web browser user agent for HTTP communication	Networking	Application Layer Protocol
Downloads files from webservers via HTTP	Networking	Application Layer Protocol Non-Application Layer Protocol Ingress Tool Transfer
Spawns processes	System Summary	Process Injection
Binary contains paths to debug symbols	Compliance, System Summary

C:\Users\Public\vbc.exe

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

Details

Is windows:	false
Is dropped:	true
PID:	2248
Target ID:	5
Parent PID:	1612
Name:	vbc.exe
Path:	C:\Users\Public\vbc.exe
Commandline:	'C:\Users\Public\vbc.exe'
Size:	288145
MD5:	A9DCC61F31601E771050463C4D41CDB0
Time:	21:08:44
Date:	27/09/2021
Reason:	newprocess
Reputation:	low
Is admin:	true
Is elevated:	true
Modulebase:	0x400000
Modulesize:	229376
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
Injects a PE file into a foreign processes	HIPS / PFW / Operating System Protection Evasion	Process Injection
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
Uses a known web browser user agent for HTTP communication	Networking	Application Layer Protocol
Downloads files from webservers via HTTP	Networking	Application Layer Protocol Non-Application Layer Protocol Ingress Tool Transfer
Spawns processes	System Summary	Process Injection
Binary contains paths to debug symbols	Compliance, System Summary

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:	2428
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:	21:08:18
Date:	27/09/2021
Reason:	newprocess
Reputation:	moderate
Is admin:	true
Is elevated:	true
Modulebase:	0x13f170000
Modulesize:	28282880
Wow64:	false

Signature Hits	Behavior Group	Mitre Attack
Spawns processes	System Summary	Process Injection

URLs

Name

Malicious

http://23.94.159.204/poc/vbc.exe

23.94.159.204

Details

Name:	http://23.94.159.204/poc/vbc.exe
IP:	23.94.159.204
TargetID:	2
From Memory:	false
Current Path:	C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
Source:	network

Signature Hits	Behavior Group	Mitre Attack
Antivirus detection for URL or domain	AV Detection
Multi AV Scanner detection for domain / URL	AV Detection
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

http://www.%s.comPA

unknown

Details

Name:	http://www.%s.comPA
TargetID:	4
From Memory:	true
Current Path:	C:\Users\Public\vbc.exe
Source:	vbc.exe, 00000004.00000002.467563721.0000000001CD0000.00000002.00020000.sdmp
Reputation:	low

Signature Hits	Behavior Group	Mitre Attack
URLs found in memory or binary data	Networking

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

unknown

Details

Name:	http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous.
TargetID:	4
From Memory:	true
Current Path:	C:\Users\Public\vbc.exe
Source:	vbc.exe, 00000004.00000002.467563721.0000000001CD0000.00000002.00020000.sdmp
Reputation:	high

Signature Hits	Behavior Group	Mitre Attack
URLs found in memory or binary data	Networking

http://nsis.sf.net/NSIS_Error

unknown

Details

Name:	http://nsis.sf.net/NSIS_Error
TargetID:	-1
From Memory:	true
Source:	vbc.exe, vbc.exe, 00000005.00000000.466883914.0000000000409000.00000008.00020000.sdmp, vbc.exe.2.dr
Reputation:	high

Signature Hits	Behavior Group	Mitre Attack
URLs found in memory or binary data	Networking

http://nsis.sf.net/NSIS_ErrorError

unknown

Details

Name:	http://nsis.sf.net/NSIS_ErrorError
TargetID:	-1
From Memory:	true
Source:	vbc.exe, 00000004.00000002.467463161.0000000000409000.00000004.00020000.sdmp, vbc.exe, 00000005.00000000.466883914.0000000000409000.00000008.00020000.sdmp, vbc.exe.2.dr
Reputation:	high

Signature Hits	Behavior Group	Mitre Attack
URLs found in memory or binary data	Networking

http://www.day.com/dam/1.0

unknown

Details

Name:	http://www.day.com/dam/1.0
TargetID:	0
From Memory:	true
Current Path:	C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
Source:	F76D3143.emf.0.dr
Reputation:	high

Signature Hits	Behavior Group	Mitre Attack
URLs found in memory or binary data	Networking

IPs

Domain

Country

Malicious

23.94.159.204

unknown

United States

Details

IP:	23.94.159.204
TargetID:	2
Current Path:	C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
Country:	United States
Countrycode:	USA
ASN number:	36352
ASN name:	AS-COLOCROSSINGUS
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

nj,

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\2E6A7

2E6A7

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

}o,

HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\DocumentRecovery\32CBB

32CBB

HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\DocumentRecovery\3426D

3426D

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