Malware Analysis Report

2024-08-06 17:17

Sample ID 240621-nqwecasaln
Target SolaraBETA.exe
SHA256 b0bc11ed599ee0020aada24b7c60d8ae7d2a6cf14e57930ed350ca7418c5b944
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 Overview

score
10/10

SHA256

b0bc11ed599ee0020aada24b7c60d8ae7d2a6cf14e57930ed350ca7418c5b944

Threat Level: Known bad

The file SolaraBETA.exe was found to be: Known bad.

Malicious Activity Summary

darkcomet guest16 rat trojan

Darkcomet family

Darkcomet

Loads dropped DLL

Executes dropped EXE

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Web Service
T1102
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-21 11:36

Signatures

Darkcomet family

darkcomet

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-21 11:36

Reported

2024-06-21 11:39

Platform

win7-20240220-en

Max time kernel

120s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\SolaraBETA.exe"

Signatures

Darkcomet

trojan rat darkcomet

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\SOLARABOOTSTRAPPER.EXE N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SolaraBETA.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\SolaraBETA.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\SolaraBETA.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A raw.githubusercontent.com N/A N/A
N/A raw.githubusercontent.com N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2020 set thread context of 2708 N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE C:\Program Files (x86)\Internet Explorer\iexplore.exe

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SOLARABOOTSTRAPPER.EXE N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\SOLARABOOTSTRAPPER.EXE N/A
N/A N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncreaseQuotaPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeSecurityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeTakeOwnershipPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeLoadDriverPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeSystemProfilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeSystemtimePrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeProfSingleProcessPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeBackupPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeRestorePrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeChangeNotifyPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeRemoteShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeUndockPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeManageVolumePrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeImpersonatePrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeCreateGlobalPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: 33 N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: 34 N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: 35 N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeSecurityPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeSystemtimePrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeBackupPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeRestorePrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeShutdownPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeChangeNotifyPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeUndockPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeManageVolumePrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeImpersonatePrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: 33 N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: 34 N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: 35 N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SOLARABOOTSTRAPPER.EXE N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Internet Explorer\iexplore.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2784 wrote to memory of 2020 N/A C:\Users\Admin\AppData\Local\Temp\SolaraBETA.exe C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE
PID 2784 wrote to memory of 2020 N/A C:\Users\Admin\AppData\Local\Temp\SolaraBETA.exe C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE
PID 2784 wrote to memory of 2020 N/A C:\Users\Admin\AppData\Local\Temp\SolaraBETA.exe C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE
PID 2784 wrote to memory of 2020 N/A C:\Users\Admin\AppData\Local\Temp\SolaraBETA.exe C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE
PID 2784 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\SolaraBETA.exe C:\Users\Admin\AppData\Local\Temp\SOLARABOOTSTRAPPER.EXE
PID 2784 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\SolaraBETA.exe C:\Users\Admin\AppData\Local\Temp\SOLARABOOTSTRAPPER.EXE
PID 2784 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\SolaraBETA.exe C:\Users\Admin\AppData\Local\Temp\SOLARABOOTSTRAPPER.EXE
PID 2784 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\SolaraBETA.exe C:\Users\Admin\AppData\Local\Temp\SOLARABOOTSTRAPPER.EXE
PID 2020 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 2020 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 2020 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 2020 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 2020 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE C:\Program Files (x86)\Internet Explorer\iexplore.exe
PID 2020 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE C:\Program Files (x86)\Internet Explorer\iexplore.exe

Processes

C:\Users\Admin\AppData\Local\Temp\SolaraBETA.exe

"C:\Users\Admin\AppData\Local\Temp\SolaraBETA.exe"

C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE

"C:\Users\Admin\AppData\Local\Temp\DLLHOST.EXE"

C:\Users\Admin\AppData\Local\Temp\SOLARABOOTSTRAPPER.EXE

"C:\Users\Admin\AppData\Local\Temp\SOLARABOOTSTRAPPER.EXE"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 carolina-reverse.gl.at.ply.gg udp
US 147.185.221.20:34609 carolina-reverse.gl.at.ply.gg tcp
US 8.8.8.8:53 github.com udp
GB 20.26.156.215:443 github.com tcp
US 8.8.8.8:53 raw.githubusercontent.com udp
US 185.199.110.133:443 raw.githubusercontent.com tcp
GB 20.26.156.215:443 github.com tcp

Files

\Users\Admin\AppData\Local\Temp\DLLHOST.EXE

MD5 6ecd5704770c96a4d4b78c66a7736a73
SHA1 5903e2bb775a53074a8c81427ec8772eefc46876
SHA256 597d30d625fabb7fde3171fb1f2faa501435255e6a9c4ea883221e35b0454001
SHA512 7b216218c7faab14fce17b72b64ce1c8e09bb42935f17739d6ed8675c31d567ec70eae677bc605e6d2ab58ee8fafa4ed87e33bd5e5b7c602e135d233a9f6f1ff

\Users\Admin\AppData\Local\Temp\SOLARABOOTSTRAPPER.EXE

MD5 6557bd5240397f026e675afb78544a26
SHA1 839e683bf68703d373b6eac246f19386bb181713
SHA256 a7fecfc225dfdd4e14dcd4d1b4ba1b9f8e4d1984f1cdd8cda3a9987e5d53c239
SHA512 f2399d34898a4c0c201372d2dd084ee66a66a1c3eae949e568421fe7edada697468ef81f4fcab2afd61eaf97bcb98d6ade2d97295e2f674e93116d142e892e97

memory/2020-15-0x0000000000270000-0x0000000000271000-memory.dmp

memory/2708-18-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2020-19-0x0000000000400000-0x00000000004B5000-memory.dmp

memory/2592-20-0x000000007475E000-0x000000007475F000-memory.dmp

memory/2592-21-0x0000000000AB0000-0x0000000000ABA000-memory.dmp