darkcomet | 68d0f7db19607f4e66fcfea5394e9959d9210599379c6deb84674b9f5ff3559b

General

Target

JaffaCakes118_206acb82dc788bfc164e71435da3a210.exe
Size

642KB
MD5

206acb82dc788bfc164e71435da3a210
SHA1

95e2d99b0dad201adfee3964056aadb9e32d5c7a
SHA256

68d0f7db19607f4e66fcfea5394e9959d9210599379c6deb84674b9f5ff3559b
SHA512

1a4165756fee1c802f36bc699bf97f884084050e152d7e6f3cfc5c6cc275cb11eef4421695a05258d64b787da2205bfed0d90f12d1c8c6ea76eb129cc9e4430d
SSDEEP

12288:72a5NZ7U2H2EQtzuirlheAXFxLGNMRTSy9p4uVrXECDNsJx:720NZg2wtaAvpVpGNMpdx6H

Score

10^/10

darkcomet dc discovery rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

DC

C2

WalruusHOST.No-Ip.biz:200

Mutex

DC_MUTEX-QPJD4E3

Attributes

gencode
G3GML55m11q1
install
false
offline_keylogger
true
persistence
false

rc4.plain

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet
Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1248 set thread context of 4320	1248	JaffaCakes118_206acb82dc788bfc164e71435da3a210.exe	88

UPX packed file 25 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4320-3-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-6-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-7-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-9-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-8-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-12-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-11-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-10-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-14-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-15-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-16-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-17-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-18-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-19-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-20-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-21-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-22-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-23-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-24-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-25-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-26-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-27-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-28-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-29-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4320-30-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_206acb82dc788bfc164e71435da3a210.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4320	vbc.exe
Token: SeSecurityPrivilege	4320	vbc.exe
Token: SeTakeOwnershipPrivilege	4320	vbc.exe
Token: SeLoadDriverPrivilege	4320	vbc.exe
Token: SeSystemProfilePrivilege	4320	vbc.exe
Token: SeSystemtimePrivilege	4320	vbc.exe
Token: SeProfSingleProcessPrivilege	4320	vbc.exe
Token: SeIncBasePriorityPrivilege	4320	vbc.exe
Token: SeCreatePagefilePrivilege	4320	vbc.exe
Token: SeBackupPrivilege	4320	vbc.exe
Token: SeRestorePrivilege	4320	vbc.exe
Token: SeShutdownPrivilege	4320	vbc.exe
Token: SeDebugPrivilege	4320	vbc.exe
Token: SeSystemEnvironmentPrivilege	4320	vbc.exe
Token: SeChangeNotifyPrivilege	4320	vbc.exe
Token: SeRemoteShutdownPrivilege	4320	vbc.exe
Token: SeUndockPrivilege	4320	vbc.exe
Token: SeManageVolumePrivilege	4320	vbc.exe
Token: SeImpersonatePrivilege	4320	vbc.exe
Token: SeCreateGlobalPrivilege	4320	vbc.exe
Token: 33	4320	vbc.exe
Token: 34	4320	vbc.exe
Token: 35	4320	vbc.exe
Token: 36	4320	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4320	vbc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1248 wrote to memory of 4320	1248	JaffaCakes118_206acb82dc788bfc164e71435da3a210.exe	88
PID 1248 wrote to memory of 4320	1248	JaffaCakes118_206acb82dc788bfc164e71435da3a210.exe	88
PID 1248 wrote to memory of 4320	1248	JaffaCakes118_206acb82dc788bfc164e71435da3a210.exe	88
PID 1248 wrote to memory of 4320	1248	JaffaCakes118_206acb82dc788bfc164e71435da3a210.exe	88
PID 1248 wrote to memory of 4320	1248	JaffaCakes118_206acb82dc788bfc164e71435da3a210.exe	88
PID 1248 wrote to memory of 4320	1248	JaffaCakes118_206acb82dc788bfc164e71435da3a210.exe	88
PID 1248 wrote to memory of 4320	1248	JaffaCakes118_206acb82dc788bfc164e71435da3a210.exe	88
PID 1248 wrote to memory of 4320	1248	JaffaCakes118_206acb82dc788bfc164e71435da3a210.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_206acb82dc788bfc164e71435da3a210.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_206acb82dc788bfc164e71435da3a210.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1248
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4320

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1248-13-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/1248-1-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/1248-2-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/1248-0-0x0000000074EF2000-0x0000000074EF3000-memory.dmp

Filesize
4KB

Download
memory/4320-16-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-19-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-9-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-8-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-12-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-11-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-10-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-6-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-14-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-15-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-3-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-17-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-18-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-7-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-20-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-21-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-22-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-23-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-24-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-25-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-26-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-27-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-28-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-29-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4320-30-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

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