Malware Analysis Report

2024-08-06 17:29

Sample ID 240624-xvpl2aycjb
Target 0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118
SHA256 72c9070be456333066ed0e73a025c86b0d6ddbca01d536654dd248b8e567e66e
Tags
darkcomet guest16 persistence 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

72c9070be456333066ed0e73a025c86b0d6ddbca01d536654dd248b8e567e66e

Threat Level: Known bad

The file 0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

darkcomet guest16 persistence rat trojan

Darkcomet

Uses the VBS compiler for execution

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-24 19:10

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-24 19:10

Reported

2024-06-24 19:13

Platform

win7-20240419-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe"

Signatures

Darkcomet

trojan rat darkcomet

Uses the VBS compiler for execution

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\Micro = "C:\\Users\\Admin\\AppData\\Local\\Temp\\soft.exe" C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe N/A

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 WriteProcessMemory

Description Indicator Process Target
PID 2180 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2180 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2180 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2180 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2180 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2180 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2180 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2180 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2180 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2180 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2180 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2180 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2180 wrote to memory of 2388 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2388 wrote to memory of 2940 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 2388 wrote to memory of 2940 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 2388 wrote to memory of 2940 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 2388 wrote to memory of 2940 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 2388 wrote to memory of 2940 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 2388 wrote to memory of 2940 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_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)\Internet Explorer\iexplore.exe

"C:\Program Files (x86)\Internet Explorer\iexplore.exe"

Network

N/A

Files

memory/2180-0-0x0000000074821000-0x0000000074822000-memory.dmp

memory/2180-1-0x0000000074820000-0x0000000074DCB000-memory.dmp

memory/2180-2-0x0000000074820000-0x0000000074DCB000-memory.dmp

memory/2388-3-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/2388-5-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/2388-22-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/2388-21-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/2388-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2388-17-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/2388-15-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/2388-13-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/2388-9-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/2388-7-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/2388-11-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/2388-24-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/2388-26-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/2180-25-0x0000000074820000-0x0000000074DCB000-memory.dmp

memory/2388-31-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/2940-28-0x0000000000400000-0x000000000051E000-memory.dmp

memory/2388-27-0x0000000000400000-0x00000000004B0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-24 19:10

Reported

2024-06-24 19:13

Platform

win10v2004-20240226-en

Max time kernel

142s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe"

Signatures

Darkcomet

trojan rat darkcomet

Uses the VBS compiler for execution

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Micro = "C:\\Users\\Admin\\AppData\\Local\\Temp\\soft.exe" C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe N/A

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 WriteProcessMemory

Description Indicator Process Target
PID 2384 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2384 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2384 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2384 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2384 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2384 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2384 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2384 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2384 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2384 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2384 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2384 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2384 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 2384 wrote to memory of 4040 N/A C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
PID 4040 wrote to memory of 1268 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4040 wrote to memory of 1268 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4040 wrote to memory of 1268 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4040 wrote to memory of 1268 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 4040 wrote to memory of 1268 N/A C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe C:\Program Files (x86)\Internet Explorer\iexplore.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\0a5581b73f12f54b73aae0ce0dafd6ec_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)\Internet Explorer\iexplore.exe

"C:\Program Files (x86)\Internet Explorer\iexplore.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 --mojo-platform-channel-handle=4068 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 20.231.121.79:80 tcp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.in-addr.arpa udp
US 13.107.246.64:443 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 97.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 209.143.182.52.in-addr.arpa udp

Files

memory/2384-0-0x00000000746A2000-0x00000000746A3000-memory.dmp

memory/2384-1-0x00000000746A0000-0x0000000074C51000-memory.dmp

memory/2384-2-0x00000000746A0000-0x0000000074C51000-memory.dmp

memory/4040-3-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/4040-4-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/4040-7-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/2384-8-0x00000000746A0000-0x0000000074C51000-memory.dmp

memory/4040-9-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/4040-10-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1268-11-0x0000000000400000-0x000000000051F000-memory.dmp

memory/4040-12-0x0000000000400000-0x00000000004B0000-memory.dmp