darkcomet | a8929b3d5c5a904027ada86379a74de93eb61eaee734eee53848220c8c220b69

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
07/02/2025, 06:12

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General

Target

JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe
Size

1.6MB
MD5

b3df1761ad3b759e0759516bbcfc27c5
SHA1

ba9af5d9c407c527cc568421300302be09ebfdbe
SHA256

a8929b3d5c5a904027ada86379a74de93eb61eaee734eee53848220c8c220b69
SHA512

5ee8d97cd3a977f5bfc7c59b1199e1e8025a22e260328acd124d4dbd0b820a54332ef53a248fb9fe9139902fa57a2b43f28570dcbe4c347a99815150d028c2be
SSDEEP

49152:jhjcapo0JfYDSGvOsUhjcapo0JfYDSGvOs:V9lfYDSYW9lfYDSY

Score

10^/10

darkcomet discovery rat trojan

Malware Config

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
2740	rzFumz.exe

Loads dropped DLL 2 IoCs

pid	Process
2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe
2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2760 set thread context of 2896	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	31
PID 2740 set thread context of 2080	2740	rzFumz.exe	32
PID 2896 set thread context of 2684	2896	vbc.exe	33

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 4 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_b3df1761ad3b759e0759516bbcfc27c5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rzFumz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2740	rzFumz.exe
Token: SeSecurityPrivilege	2740	rzFumz.exe
Token: SeTakeOwnershipPrivilege	2740	rzFumz.exe
Token: SeLoadDriverPrivilege	2740	rzFumz.exe
Token: SeSystemProfilePrivilege	2740	rzFumz.exe
Token: SeSystemtimePrivilege	2740	rzFumz.exe
Token: SeProfSingleProcessPrivilege	2740	rzFumz.exe
Token: SeIncBasePriorityPrivilege	2740	rzFumz.exe
Token: SeCreatePagefilePrivilege	2740	rzFumz.exe
Token: SeBackupPrivilege	2740	rzFumz.exe
Token: SeRestorePrivilege	2740	rzFumz.exe
Token: SeShutdownPrivilege	2740	rzFumz.exe
Token: SeDebugPrivilege	2740	rzFumz.exe
Token: SeSystemEnvironmentPrivilege	2740	rzFumz.exe
Token: SeChangeNotifyPrivilege	2740	rzFumz.exe
Token: SeRemoteShutdownPrivilege	2740	rzFumz.exe
Token: SeUndockPrivilege	2740	rzFumz.exe
Token: SeManageVolumePrivilege	2740	rzFumz.exe
Token: SeImpersonatePrivilege	2740	rzFumz.exe
Token: SeCreateGlobalPrivilege	2740	rzFumz.exe
Token: 33	2740	rzFumz.exe
Token: 34	2740	rzFumz.exe
Token: 35	2740	rzFumz.exe
Token: SeIncreaseQuotaPrivilege	2896	vbc.exe
Token: SeSecurityPrivilege	2896	vbc.exe
Token: SeTakeOwnershipPrivilege	2896	vbc.exe
Token: SeLoadDriverPrivilege	2896	vbc.exe
Token: SeSystemProfilePrivilege	2896	vbc.exe
Token: SeSystemtimePrivilege	2896	vbc.exe
Token: SeProfSingleProcessPrivilege	2896	vbc.exe
Token: SeIncBasePriorityPrivilege	2896	vbc.exe
Token: SeCreatePagefilePrivilege	2896	vbc.exe
Token: SeBackupPrivilege	2896	vbc.exe
Token: SeRestorePrivilege	2896	vbc.exe
Token: SeShutdownPrivilege	2896	vbc.exe
Token: SeDebugPrivilege	2896	vbc.exe
Token: SeSystemEnvironmentPrivilege	2896	vbc.exe
Token: SeChangeNotifyPrivilege	2896	vbc.exe
Token: SeRemoteShutdownPrivilege	2896	vbc.exe
Token: SeUndockPrivilege	2896	vbc.exe
Token: SeManageVolumePrivilege	2896	vbc.exe
Token: SeImpersonatePrivilege	2896	vbc.exe
Token: SeCreateGlobalPrivilege	2896	vbc.exe
Token: 33	2896	vbc.exe
Token: 34	2896	vbc.exe
Token: 35	2896	vbc.exe
Token: SeIncreaseQuotaPrivilege	2080	iexplore.exe
Token: SeSecurityPrivilege	2080	iexplore.exe
Token: SeTakeOwnershipPrivilege	2080	iexplore.exe
Token: SeLoadDriverPrivilege	2080	iexplore.exe
Token: SeSystemProfilePrivilege	2080	iexplore.exe
Token: SeSystemtimePrivilege	2080	iexplore.exe
Token: SeProfSingleProcessPrivilege	2080	iexplore.exe
Token: SeIncBasePriorityPrivilege	2080	iexplore.exe
Token: SeCreatePagefilePrivilege	2080	iexplore.exe
Token: SeBackupPrivilege	2080	iexplore.exe
Token: SeRestorePrivilege	2080	iexplore.exe
Token: SeShutdownPrivilege	2080	iexplore.exe
Token: SeDebugPrivilege	2080	iexplore.exe
Token: SeSystemEnvironmentPrivilege	2080	iexplore.exe
Token: SeChangeNotifyPrivilege	2080	iexplore.exe
Token: SeRemoteShutdownPrivilege	2080	iexplore.exe
Token: SeUndockPrivilege	2080	iexplore.exe
Token: SeManageVolumePrivilege	2080	iexplore.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 2760 wrote to memory of 2740	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	30
PID 2760 wrote to memory of 2740	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	30
PID 2760 wrote to memory of 2740	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	30
PID 2760 wrote to memory of 2740	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	30
PID 2760 wrote to memory of 2896	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	31
PID 2760 wrote to memory of 2896	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	31
PID 2760 wrote to memory of 2896	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	31
PID 2760 wrote to memory of 2896	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	31
PID 2760 wrote to memory of 2896	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	31
PID 2760 wrote to memory of 2896	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	31
PID 2760 wrote to memory of 2896	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	31
PID 2760 wrote to memory of 2896	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	31
PID 2760 wrote to memory of 2896	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	31
PID 2760 wrote to memory of 2896	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	31
PID 2760 wrote to memory of 2896	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	31
PID 2760 wrote to memory of 2896	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	31
PID 2760 wrote to memory of 2896	2760	JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe	31
PID 2740 wrote to memory of 2080	2740	rzFumz.exe	32
PID 2740 wrote to memory of 2080	2740	rzFumz.exe	32
PID 2740 wrote to memory of 2080	2740	rzFumz.exe	32
PID 2740 wrote to memory of 2080	2740	rzFumz.exe	32
PID 2740 wrote to memory of 2080	2740	rzFumz.exe	32
PID 2740 wrote to memory of 2080	2740	rzFumz.exe	32
PID 2896 wrote to memory of 2684	2896	vbc.exe	33
PID 2896 wrote to memory of 2684	2896	vbc.exe	33
PID 2896 wrote to memory of 2684	2896	vbc.exe	33
PID 2896 wrote to memory of 2684	2896	vbc.exe	33
PID 2896 wrote to memory of 2684	2896	vbc.exe	33
PID 2896 wrote to memory of 2684	2896	vbc.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b3df1761ad3b759e0759516bbcfc27c5.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Users\Admin\AppData\Local\Temp\rzFumz.exe
  "C:\Users\Admin\AppData\Local\Temp\rzFumz.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2740
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2080
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2896
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:2684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\rzFumz.exe

Filesize
820KB

MD5
4e60c5b5b0e6de2d865a90abc56a6543

SHA1
e3481866659a68e9e4821943093003ca87ed9713

SHA256
78c3e8fd1b03bdbdc661f0c2312f034ffbf992d578aff817b77100af2e23f052

SHA512
b86d983ee65c84b34711d9be09a1b2a5de48d61442de4c54c6f0ef3dced2abb3930cad912ce86619f9095445f583fb8d51e50ffdf28e6ddae39108c395d6b05e

Download Submit
memory/2080-33-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/2684-37-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/2740-35-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/2760-1-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2760-2-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2760-40-0x0000000074FC0000-0x000000007556B000-memory.dmp

Filesize
5.7MB

Download
memory/2760-0-0x0000000074FC1000-0x0000000074FC2000-memory.dmp

Filesize
4KB

Download
memory/2896-26-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/2896-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2896-38-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/2896-24-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/2896-22-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/2896-20-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/2896-18-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/2896-16-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/2896-14-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/2896-12-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/2896-36-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/2896-34-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download
memory/2896-32-0x0000000000400000-0x00000000004DB000-memory.dmp

Filesize
876KB

Download