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:	2792
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:	07:37:39
Date:	14/10/2021
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:	684
Target ID:	4
Parent PID:	2792
Name:	vbc.exe
Path:	C:\Users\Public\vbc.exe
Commandline:	'C:\Users\Public\vbc.exe'
Size:	208896
MD5:	8777020A37B6797241A489A707B9784B
Time:	07:37:41
Date:	14/10/2021
Reason:	newprocess
Reputation:	low
Is admin:	true
Is elevated:	true
Modulebase:	0x400000
Modulesize:	212992
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
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

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:	2004
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:	07:37:17
Date:	14/10/2021
Reason:	newprocess
Reputation:	moderate
Is admin:	true
Is elevated:	true
Modulebase:	0x13f8b0000
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://implantecapilarpereira.com/NetGen

Details

Name:	http://implantecapilarpereira.com/NetGen
TargetID:	0
From Memory:	false
Current Path:	C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
Source:	config extactor

Signature Hits	Behavior Group	Mitre Attack
Found malware configuration	AV Detection
C2 URLs / IPs found in malware configuration	Networking	Application Layer Protocol

http://192.3.121.153/00800800/vbc.exe

192.3.121.153

Details

Name:	http://192.3.121.153/00800800/vbc.exe
IP:	192.3.121.153
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
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://services.msn.com/svcs/oe/certpage.asp?name=%s&email=%s&&Check

unknown

Details

Name:	http://services.msn.com/svcs/oe/certpage.asp?name=%s&email=%s&&Check
TargetID:	4
From Memory:	true
Current Path:	C:\Users\Public\vbc.exe
Source:	vbc.exe, 00000004.00000002.672041405.00000000032C7000.00000002.00020000.sdmp
Reputation:	high

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

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

unknown

Details

Name:	http://www.icra.org/vocabulary/.
TargetID:	4
From Memory:	true
Current Path:	C:\Users\Public\vbc.exe
Source:	vbc.exe, 00000004.00000002.672041405.00000000032C7000.00000002.00020000.sdmp

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

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

unknown

Details

Name:	http://windowsmedia.com/redir/services.asp?WMPFriendly=true
TargetID:	4
From Memory:	true
Current Path:	C:\Users\Public\vbc.exe
Source:	vbc.exe, 00000004.00000002.672041405.00000000032C7000.00000002.00020000.sdmp

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

IPs

Domain

Country

Malicious

192.3.121.153

unknown

United States

Details

IP:	192.3.121.153
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

.~*

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\2E31E

2E31E

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

*&*

HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\DocumentRecovery\32B35

32B35

HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\DocumentRecovery\33D5E

33D5E

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