darkcomet | dcbfd8058e295d146bb8a6776821ba637e992e3217934e41c1e6bf613417e3d8

General

Target

61851a26a739e934f0f325569d512d7e_JaffaCakes118.exe
Size

799KB
MD5

61851a26a739e934f0f325569d512d7e
SHA1

85ab82a40bdabd9381df9beeecd5c29632f873f9
SHA256

dcbfd8058e295d146bb8a6776821ba637e992e3217934e41c1e6bf613417e3d8
SHA512

74dc9f581e9a26c08fcfbb03706dee285420d324da015c15d0e6ed1bc441de3252bc4256f4a06d63b5fc18eb06558e153e242fb34cdbaf3bd77a4cb94c1cb7fa
SSDEEP

12288:CUAveojxhN5YSl10R/IqSBk58uKTGPMiLeFv6uqos2mbqkNwdPsr0270yVyTy:LbSIR/998ZGPMXJkNcscyVyG

Score

10^/10

darkcomet discovery evasion rat trojan

Malware Config

Signatures

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

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	Crypted.exe

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	Crypted.exe

Disables Task Manager via registry modification
evasion

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	Crypted.exe

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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	61851a26a739e934f0f325569d512d7e_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
3312	Crypted.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	Crypted.exe

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 1 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	Crypted.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Crypted.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Crypted.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Crypted.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	Crypted.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	Crypted.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3312	Crypted.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3312	Crypted.exe
Token: SeSecurityPrivilege	3312	Crypted.exe
Token: SeTakeOwnershipPrivilege	3312	Crypted.exe
Token: SeLoadDriverPrivilege	3312	Crypted.exe
Token: SeSystemProfilePrivilege	3312	Crypted.exe
Token: SeSystemtimePrivilege	3312	Crypted.exe
Token: SeProfSingleProcessPrivilege	3312	Crypted.exe
Token: SeIncBasePriorityPrivilege	3312	Crypted.exe
Token: SeCreatePagefilePrivilege	3312	Crypted.exe
Token: SeBackupPrivilege	3312	Crypted.exe
Token: SeRestorePrivilege	3312	Crypted.exe
Token: SeShutdownPrivilege	3312	Crypted.exe
Token: SeDebugPrivilege	3312	Crypted.exe
Token: SeSystemEnvironmentPrivilege	3312	Crypted.exe
Token: SeChangeNotifyPrivilege	3312	Crypted.exe
Token: SeRemoteShutdownPrivilege	3312	Crypted.exe
Token: SeUndockPrivilege	3312	Crypted.exe
Token: SeManageVolumePrivilege	3312	Crypted.exe
Token: SeImpersonatePrivilege	3312	Crypted.exe
Token: SeCreateGlobalPrivilege	3312	Crypted.exe
Token: 33	3312	Crypted.exe
Token: 34	3312	Crypted.exe
Token: 35	3312	Crypted.exe
Token: 36	3312	Crypted.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3312	Crypted.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 3312	1608	61851a26a739e934f0f325569d512d7e_JaffaCakes118.exe	87
PID 1608 wrote to memory of 3312	1608	61851a26a739e934f0f325569d512d7e_JaffaCakes118.exe	87
PID 1608 wrote to memory of 3312	1608	61851a26a739e934f0f325569d512d7e_JaffaCakes118.exe	87
PID 3312 wrote to memory of 536	3312	Crypted.exe	88
PID 3312 wrote to memory of 536	3312	Crypted.exe	88
PID 3312 wrote to memory of 536	3312	Crypted.exe	88

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	Crypted.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	Crypted.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	Crypted.exe

C:\Users\Admin\AppData\Local\Temp\61851a26a739e934f0f325569d512d7e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\61851a26a739e934f0f325569d512d7e_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1608
- C:\Users\Admin\AppData\Local\Temp\Crypted.exe
  "C:\Users\Admin\AppData\Local\Temp\Crypted.exe"
  2⤵
  - Windows security bypass
  - Disables RegEdit via registry modification
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Windows security modification
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:3312
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    PID:536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

4

T1012

System Information Discovery

5

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
218KB

MD5
7965674b863b5a0b858f170c60c5ed0c

SHA1
843de36143c9fa478a2a8c3f1b6dc48ef027930d

SHA256
b2358bd771419a3b88f9b5a8124e017c1c15e378f9e85abf6e4d5f2b397d5c3d

SHA512
ab6370f5d38738fab755ceb2af4a7e7e8c08ad4152333c9833166ee6362bd28b4c0c07f6eb4033790d42cb85f2d727ad1d0c58eacc47e6e3c6f95e6be9ca0591

Download Submit
memory/1608-19-0x00007FFBF2C90000-0x00007FFBF3631000-memory.dmp

Filesize
9.6MB

Download
memory/1608-1-0x000000001BDA0000-0x000000001BE46000-memory.dmp

Filesize
664KB

Download
memory/1608-2-0x00007FFBF2C90000-0x00007FFBF3631000-memory.dmp

Filesize
9.6MB

Download
memory/1608-3-0x000000001C3F0000-0x000000001C8BE000-memory.dmp

Filesize
4.8MB

Download
memory/1608-4-0x00007FFBF2C90000-0x00007FFBF3631000-memory.dmp

Filesize
9.6MB

Download
memory/1608-5-0x000000001C960000-0x000000001C9FC000-memory.dmp

Filesize
624KB

Download
memory/1608-6-0x0000000001A50000-0x0000000001A58000-memory.dmp

Filesize
32KB

Download
memory/1608-7-0x000000001CAC0000-0x000000001CB0C000-memory.dmp

Filesize
304KB

Download
memory/1608-8-0x00007FFBF2C90000-0x00007FFBF3631000-memory.dmp

Filesize
9.6MB

Download
memory/1608-0-0x00007FFBF2F45000-0x00007FFBF2F46000-memory.dmp

Filesize
4KB

Download
memory/3312-22-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3312-28-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3312-21-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3312-16-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3312-23-0x0000000002870000-0x0000000002871000-memory.dmp

Filesize
4KB

Download
memory/3312-24-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3312-25-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3312-26-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3312-27-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3312-20-0x0000000002870000-0x0000000002871000-memory.dmp

Filesize
4KB

Download
memory/3312-29-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3312-30-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3312-31-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3312-32-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3312-33-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3312-34-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3312-35-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3312-36-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads