darkcomet | 735a0da4d37b839e6385f08203527f0a21b8a5b0e024722fc4bcf63872e72064

General

Target

efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe
Size

533KB
MD5

efe27fd5739f37d46e1f9fc7c3ccad58
SHA1

7ab9cc88e288e58a29b253058f13ffd85d844f1e
SHA256

735a0da4d37b839e6385f08203527f0a21b8a5b0e024722fc4bcf63872e72064
SHA512

90db33784954e776f65e51f721641c47372ac8e7481e3f0ebaa6c6611d54ded34fa2414347b3b21c9f75236a2077f7ab6397fb518740dfee2e69151df12b63d5
SSDEEP

12288:PoOgS41Ye4ypiMXsIhvhWieV6C3B3oeyhRJPFRzRUjQKXNKzSoh:PoOgH1HxJHhpWD8GBYXvqtkzSS

Score

10^/10

darkcomet guest16 discovery rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

funnyrat.zapto.org:1604

Mutex

DC_MUTEX-ZG2C840

Attributes

gencode
oskYAaPAtleh
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
2444	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3588 set thread context of 2444	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	84

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000_Classes\Local Settings	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe
3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe
3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe
3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe
3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe
3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe
3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2444	svchost.exe
Token: SeSecurityPrivilege	2444	svchost.exe
Token: SeTakeOwnershipPrivilege	2444	svchost.exe
Token: SeLoadDriverPrivilege	2444	svchost.exe
Token: SeSystemProfilePrivilege	2444	svchost.exe
Token: SeSystemtimePrivilege	2444	svchost.exe
Token: SeProfSingleProcessPrivilege	2444	svchost.exe
Token: SeIncBasePriorityPrivilege	2444	svchost.exe
Token: SeCreatePagefilePrivilege	2444	svchost.exe
Token: SeBackupPrivilege	2444	svchost.exe
Token: SeRestorePrivilege	2444	svchost.exe
Token: SeShutdownPrivilege	2444	svchost.exe
Token: SeDebugPrivilege	2444	svchost.exe
Token: SeSystemEnvironmentPrivilege	2444	svchost.exe
Token: SeChangeNotifyPrivilege	2444	svchost.exe
Token: SeRemoteShutdownPrivilege	2444	svchost.exe
Token: SeUndockPrivilege	2444	svchost.exe
Token: SeManageVolumePrivilege	2444	svchost.exe
Token: SeImpersonatePrivilege	2444	svchost.exe
Token: SeCreateGlobalPrivilege	2444	svchost.exe
Token: 33	2444	svchost.exe
Token: 34	2444	svchost.exe
Token: 35	2444	svchost.exe
Token: 36	2444	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2444	svchost.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3588 wrote to memory of 1076	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	83
PID 3588 wrote to memory of 1076	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	83
PID 3588 wrote to memory of 1076	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	83
PID 3588 wrote to memory of 2444	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	84
PID 3588 wrote to memory of 2444	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	84
PID 3588 wrote to memory of 2444	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	84
PID 3588 wrote to memory of 2444	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	84
PID 3588 wrote to memory of 2444	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	84
PID 3588 wrote to memory of 2444	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	84
PID 3588 wrote to memory of 2444	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	84
PID 3588 wrote to memory of 2444	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	84
PID 3588 wrote to memory of 2444	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	84
PID 3588 wrote to memory of 2444	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	84
PID 3588 wrote to memory of 2444	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	84
PID 3588 wrote to memory of 2444	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	84
PID 3588 wrote to memory of 2444	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	84
PID 3588 wrote to memory of 2444	3588	efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\efe27fd5739f37d46e1f9fc7c3ccad58_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3588
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\cc.vbs"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1076
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\svchost.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2444

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\cc.vbs

Filesize
370B

MD5
3719046f02dad222adc485b464110b36

SHA1
c9f65834ec541d3cc5767671f9bc26f156783f28

SHA256
9e19d32c61ea76f04ae3af8dcf7d82539a184dd8d453a9d8011a6afd1b2be4c3

SHA512
f360225c15a461dd5b5d5b52c4e1420c94227af5aedecf52cb58e7ec923ccfd18e03db3c4b316888a329610aa64fa74bab580b520f9f3f14cd3f1bd2489ac4de

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
34KB

MD5
e118330b4629b12368d91b9df6488be0

SHA1
ce90218c7e3b90df2a3409ec253048bb6472c2fd

SHA256
3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

SHA512
ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

Download Submit
memory/2444-22-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-29-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-23-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-24-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-13-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-34-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-15-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-17-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-18-0x00000000025C0000-0x00000000025C1000-memory.dmp

Filesize
4KB

Download
memory/2444-20-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-19-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-33-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-35-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-32-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-10-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-25-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-26-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-27-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-28-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-31-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2444-30-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3588-3-0x0000000075100000-0x00000000756B1000-memory.dmp

Filesize
5.7MB

Download
memory/3588-2-0x0000000075100000-0x00000000756B1000-memory.dmp

Filesize
5.7MB

Download
memory/3588-21-0x0000000075100000-0x00000000756B1000-memory.dmp

Filesize
5.7MB

Download
memory/3588-1-0x0000000075100000-0x00000000756B1000-memory.dmp

Filesize
5.7MB

Download
memory/3588-0-0x0000000075102000-0x0000000075103000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing