Malware Analysis Report

2024-08-06 17:29

Sample ID 240626-jy959axbmr
Target 114aa56733914456c83bc16d88886dcc_JaffaCakes118
SHA256 7956de14ab897ef378e76a54bf0a7312b3f8b6bc0872a6c690054d7ae82ec915
Tags
darkcomet guest16 rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

7956de14ab897ef378e76a54bf0a7312b3f8b6bc0872a6c690054d7ae82ec915

Threat Level: Known bad

The file 114aa56733914456c83bc16d88886dcc_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

darkcomet guest16 rat trojan

Darkcomet

Uses the VBS compiler for execution

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Scripting
T1064
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Scripting
T1064
Credential Access
TA0006
Discovery
TA0007
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-26 08:05

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-26 08:05

Reported

2024-06-26 08:08

Platform

win7-20240508-en

Max time kernel

141s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe"

Signatures

Darkcomet

trojan rat darkcomet

Uses the VBS compiler for execution

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2436 set thread context of 2096 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeImpersonatePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 34 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 35 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2436 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2436 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2436 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2436 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2436 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2436 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2436 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2436 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2436 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2436 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2436 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2436 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2436 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Network

Country Destination Domain Proto
N/A 192.168.1.100:1604 tcp
US 8.8.8.8:53 dummydolly.zapto.org udp
N/A 192.168.1.100:1604 tcp
US 8.8.8.8:53 dummydolly.zapto.org udp
N/A 192.168.1.100:1604 tcp
US 8.8.8.8:53 dummydolly.zapto.org udp
N/A 192.168.1.100:1604 tcp
US 8.8.8.8:53 dummydolly.zapto.org udp
N/A 192.168.1.100:1604 tcp

Files

memory/2436-0-0x0000000074BC1000-0x0000000074BC2000-memory.dmp

memory/2436-1-0x0000000074BC0000-0x000000007516B000-memory.dmp

memory/2436-2-0x0000000074BC0000-0x000000007516B000-memory.dmp

memory/2096-3-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-5-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-7-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-9-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-11-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-17-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-22-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-21-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2096-15-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-13-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-23-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-26-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-25-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2436-24-0x0000000074BC0000-0x000000007516B000-memory.dmp

memory/2096-28-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-27-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-29-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-31-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-32-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-34-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-35-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-37-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-39-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-41-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2096-42-0x0000000000400000-0x00000000004B5000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-26 08:05

Reported

2024-06-26 08:08

Platform

win10v2004-20240508-en

Max time kernel

141s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe"

Signatures

Darkcomet

trojan rat darkcomet

Uses the VBS compiler for execution

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3672 set thread context of 456 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeImpersonatePrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 33 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 34 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 35 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A
Token: 36 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3672 wrote to memory of 456 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3672 wrote to memory of 456 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3672 wrote to memory of 456 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3672 wrote to memory of 456 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3672 wrote to memory of 456 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3672 wrote to memory of 456 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3672 wrote to memory of 456 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3672 wrote to memory of 456 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3672 wrote to memory of 456 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3672 wrote to memory of 456 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3672 wrote to memory of 456 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3672 wrote to memory of 456 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3672 wrote to memory of 456 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 3672 wrote to memory of 456 N/A C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\114aa56733914456c83bc16d88886dcc_JaffaCakes118.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4068,i,1809100026287847100,9768898026582633513,262144 --variations-seed-version --mojo-platform-channel-handle=3808 /prefetch:8

Network

Country Destination Domain Proto
N/A 192.168.1.100:1604 tcp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 dummydolly.zapto.org udp
N/A 192.168.1.100:1604 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 dummydolly.zapto.org udp
N/A 192.168.1.100:1604 tcp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 dummydolly.zapto.org udp
N/A 192.168.1.100:1604 tcp
US 8.8.8.8:53 dummydolly.zapto.org udp
N/A 192.168.1.100:1604 tcp
US 8.8.8.8:53 dummydolly.zapto.org udp
N/A 192.168.1.100:1604 tcp
US 8.8.8.8:53 dummydolly.zapto.org udp
N/A 192.168.1.100:1604 tcp

Files

memory/3672-0-0x0000000075082000-0x0000000075083000-memory.dmp

memory/3672-1-0x0000000075080000-0x0000000075631000-memory.dmp

memory/3672-2-0x0000000075080000-0x0000000075631000-memory.dmp

memory/456-3-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/456-4-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/456-6-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/456-8-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/3672-9-0x0000000075080000-0x0000000075631000-memory.dmp

memory/456-10-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/456-7-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/456-11-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/456-12-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/456-13-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/456-15-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/456-17-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/456-19-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/456-21-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/456-23-0x0000000000400000-0x00000000004B5000-memory.dmp