darkcomet | 38f715e43b2775461d7479b02648ee367580b8ab9580e7ab3d28072eff2cb869

General

Target

JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe
Size

1.3MB
MD5

b33556f7f35cd30ebd0a23369d018ff6
SHA1

c7d364a84391cfad195335174776afa5dae38a6b
SHA256

38f715e43b2775461d7479b02648ee367580b8ab9580e7ab3d28072eff2cb869
SHA512

0305f82cec959f4c7a03c9196f8c02cbe4064f648510cae60bae3696d771187f7527335451cb5bceaaf83e5df5d5afe2cdb6d48bb9c32579446a446bdbf51566
SSDEEP

24576:RljkBtiMHWO2kEKWdlFaSj6BQIu+tAqvhHkqSnTKs4iYtA9QoR:RdkBtiMHWv3dfuOIRtAghHkqSThPYtat

Score

10^/10

darkcomet slave discovery rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Slave

C2

socksproxy.myftp.org:1604

Mutex

DC_MUTEX-8JJT4FK

Attributes

gencode
JSgWM7N6z0nU
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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe

Executes dropped EXE 1 IoCs

pid	Process
4380	explorer.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1600 set thread context of 4380	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	82

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	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000_Classes\Local Settings	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe
Token: SeIncreaseQuotaPrivilege	4380	explorer.exe
Token: SeSecurityPrivilege	4380	explorer.exe
Token: SeTakeOwnershipPrivilege	4380	explorer.exe
Token: SeLoadDriverPrivilege	4380	explorer.exe
Token: SeSystemProfilePrivilege	4380	explorer.exe
Token: SeSystemtimePrivilege	4380	explorer.exe
Token: SeProfSingleProcessPrivilege	4380	explorer.exe
Token: SeIncBasePriorityPrivilege	4380	explorer.exe
Token: SeCreatePagefilePrivilege	4380	explorer.exe
Token: SeBackupPrivilege	4380	explorer.exe
Token: SeRestorePrivilege	4380	explorer.exe
Token: SeShutdownPrivilege	4380	explorer.exe
Token: SeDebugPrivilege	4380	explorer.exe
Token: SeSystemEnvironmentPrivilege	4380	explorer.exe
Token: SeChangeNotifyPrivilege	4380	explorer.exe
Token: SeRemoteShutdownPrivilege	4380	explorer.exe
Token: SeUndockPrivilege	4380	explorer.exe
Token: SeManageVolumePrivilege	4380	explorer.exe
Token: SeImpersonatePrivilege	4380	explorer.exe
Token: SeCreateGlobalPrivilege	4380	explorer.exe
Token: 33	4380	explorer.exe
Token: 34	4380	explorer.exe
Token: 35	4380	explorer.exe
Token: 36	4380	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4380	explorer.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 4380	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	82
PID 1600 wrote to memory of 4380	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	82
PID 1600 wrote to memory of 4380	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	82
PID 1600 wrote to memory of 4380	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	82
PID 1600 wrote to memory of 4380	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	82
PID 1600 wrote to memory of 4380	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	82
PID 1600 wrote to memory of 4380	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	82
PID 1600 wrote to memory of 4380	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	82
PID 1600 wrote to memory of 4380	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	82
PID 1600 wrote to memory of 4380	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	82
PID 1600 wrote to memory of 4380	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	82
PID 1600 wrote to memory of 4380	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	82
PID 1600 wrote to memory of 4380	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	82
PID 1600 wrote to memory of 4380	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	82
PID 1600 wrote to memory of 4308	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	83
PID 1600 wrote to memory of 4308	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	83
PID 1600 wrote to memory of 4308	1600	JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b33556f7f35cd30ebd0a23369d018ff6.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Users\Admin\AppData\Local\Temp\explorer.exe
  C:\Users\Admin\AppData\Local\Temp\explorer.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4380
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\j.vbs"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4308

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

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Downloads

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

Filesize
34KB

MD5
e118330b4629b12368d91b9df6488be0

SHA1
ce90218c7e3b90df2a3409ec253048bb6472c2fd

SHA256
3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

SHA512
ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

Download Submit
C:\Users\Admin\AppData\Local\Temp\j.vbs

Filesize
326B

MD5
3f8b6b4c615ff796625952455400fa34

SHA1
dbf52070caf4b63824f3ab01e1dba0bc341dc8fd

SHA256
683d569ca1aaac0263a3ef3f58a41590e1849626b5db30a3ed3420f7a052933f

SHA512
f00c6bb56e9682d88d7aa681e9185c5ffe2f5256823dbb8e15386cba617cf185ae585840a560e5e66c03f16362a78ea62103a5f72edcb3087ba355aff4a4461c

Download Submit
memory/1600-0-0x0000000074732000-0x0000000074733000-memory.dmp

Filesize
4KB

Download
memory/1600-1-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/1600-2-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/1600-22-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/4380-10-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-27-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-13-0x0000000002870000-0x0000000002871000-memory.dmp

Filesize
4KB

Download
memory/4380-15-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-14-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-8-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-5-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-23-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-24-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-25-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-26-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-12-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-28-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-29-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-30-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-31-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-32-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-33-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-34-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-35-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4380-36-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download

Analysis

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