darkcomet | 1172f9a769ad61689bddae58882645f5ccd37ed2881a096fe23d5c120ea20fff

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21/10/2024, 11:49

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General

Target

66a296ff8e17020c80cc61f50931ff33_JaffaCakes118.exe
Size

381KB
MD5

66a296ff8e17020c80cc61f50931ff33
SHA1

13b1b3a05a6bfe43e69ac419537509db02e675fb
SHA256

1172f9a769ad61689bddae58882645f5ccd37ed2881a096fe23d5c120ea20fff
SHA512

b2ad4f4ea38917bd85072bf590a5e3b305e11944581269fc142ebcf5fb15d456088695ae8c7c5ea7439cd72695a813368b706e4042522b0449a2666adfc97f49
SSDEEP

6144:0WVvUX3F1M4icY6u09Sr4RL3gs0P+CriXNBz3DHUEkzl8+We+atGKoS9:xilbcfMS0xg5PvOXN1UDlJJoKoS

Score

10^/10

darkcomet discovery persistence rat trojan upx

Malware Config

Signatures

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

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	Update.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	66a296ff8e17020c80cc61f50931ff33_JaffaCakes118.exe

Executes dropped EXE 3 IoCs

pid	Process
868	Update.exe
5008	Update.exe
644	Update.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Java = "C:\\Users\\Admin\\AppData\\Roaming\\Java\\Update.exe"	reg.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 868 set thread context of 5008	868	Update.exe	99
PID 868 set thread context of 644	868	Update.exe	100

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4660-0-0x0000000000400000-0x0000000000705000-memory.dmp	upx
behavioral2/files/0x000a000000023b80-11.dat	upx
behavioral2/memory/868-18-0x0000000000400000-0x0000000000705000-memory.dmp	upx
behavioral2/memory/4660-22-0x0000000000400000-0x0000000000705000-memory.dmp	upx
behavioral2/memory/868-36-0x0000000000400000-0x0000000000705000-memory.dmp	upx

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 6 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	66a296ff8e17020c80cc61f50931ff33_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Update.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Update.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Update.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	Update.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Update.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Update.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	Update.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	Update.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	644	Update.exe
Token: SeIncreaseQuotaPrivilege	5008	Update.exe
Token: SeSecurityPrivilege	5008	Update.exe
Token: SeTakeOwnershipPrivilege	5008	Update.exe
Token: SeLoadDriverPrivilege	5008	Update.exe
Token: SeSystemProfilePrivilege	5008	Update.exe
Token: SeSystemtimePrivilege	5008	Update.exe
Token: SeProfSingleProcessPrivilege	5008	Update.exe
Token: SeIncBasePriorityPrivilege	5008	Update.exe
Token: SeCreatePagefilePrivilege	5008	Update.exe
Token: SeBackupPrivilege	5008	Update.exe
Token: SeRestorePrivilege	5008	Update.exe
Token: SeShutdownPrivilege	5008	Update.exe
Token: SeDebugPrivilege	5008	Update.exe
Token: SeSystemEnvironmentPrivilege	5008	Update.exe
Token: SeChangeNotifyPrivilege	5008	Update.exe
Token: SeRemoteShutdownPrivilege	5008	Update.exe
Token: SeUndockPrivilege	5008	Update.exe
Token: SeManageVolumePrivilege	5008	Update.exe
Token: SeImpersonatePrivilege	5008	Update.exe
Token: SeCreateGlobalPrivilege	5008	Update.exe
Token: 33	5008	Update.exe
Token: 34	5008	Update.exe
Token: 35	5008	Update.exe
Token: 36	5008	Update.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4660	66a296ff8e17020c80cc61f50931ff33_JaffaCakes118.exe
868	Update.exe
644	Update.exe
5008	Update.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4660 wrote to memory of 976	4660	66a296ff8e17020c80cc61f50931ff33_JaffaCakes118.exe	86
PID 4660 wrote to memory of 976	4660	66a296ff8e17020c80cc61f50931ff33_JaffaCakes118.exe	86
PID 4660 wrote to memory of 976	4660	66a296ff8e17020c80cc61f50931ff33_JaffaCakes118.exe	86
PID 976 wrote to memory of 3992	976	cmd.exe	90
PID 976 wrote to memory of 3992	976	cmd.exe	90
PID 976 wrote to memory of 3992	976	cmd.exe	90
PID 4660 wrote to memory of 868	4660	66a296ff8e17020c80cc61f50931ff33_JaffaCakes118.exe	91
PID 4660 wrote to memory of 868	4660	66a296ff8e17020c80cc61f50931ff33_JaffaCakes118.exe	91
PID 4660 wrote to memory of 868	4660	66a296ff8e17020c80cc61f50931ff33_JaffaCakes118.exe	91
PID 868 wrote to memory of 5008	868	Update.exe	99
PID 868 wrote to memory of 5008	868	Update.exe	99
PID 868 wrote to memory of 5008	868	Update.exe	99
PID 868 wrote to memory of 5008	868	Update.exe	99
PID 868 wrote to memory of 5008	868	Update.exe	99
PID 868 wrote to memory of 5008	868	Update.exe	99
PID 868 wrote to memory of 5008	868	Update.exe	99
PID 868 wrote to memory of 5008	868	Update.exe	99
PID 868 wrote to memory of 5008	868	Update.exe	99
PID 868 wrote to memory of 5008	868	Update.exe	99
PID 868 wrote to memory of 5008	868	Update.exe	99
PID 868 wrote to memory of 5008	868	Update.exe	99
PID 868 wrote to memory of 5008	868	Update.exe	99
PID 868 wrote to memory of 5008	868	Update.exe	99
PID 868 wrote to memory of 644	868	Update.exe	100
PID 868 wrote to memory of 644	868	Update.exe	100
PID 868 wrote to memory of 644	868	Update.exe	100
PID 868 wrote to memory of 644	868	Update.exe	100
PID 868 wrote to memory of 644	868	Update.exe	100
PID 868 wrote to memory of 644	868	Update.exe	100
PID 868 wrote to memory of 644	868	Update.exe	100

C:\Users\Admin\AppData\Local\Temp\66a296ff8e17020c80cc61f50931ff33_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\66a296ff8e17020c80cc61f50931ff33_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4660
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\kHXdG.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:976
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Java" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Java\Update.exe" /f
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:3992
- C:\Users\Admin\AppData\Roaming\Java\Update.exe
  "C:\Users\Admin\AppData\Roaming\Java\Update.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:868
- - C:\Users\Admin\AppData\Roaming\Java\Update.exe
    "C:\Users\Admin\AppData\Roaming\Java\Update.exe"
    3⤵
    - Checks BIOS information in registry
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:5008
- - C:\Users\Admin\AppData\Roaming\Java\Update.exe
    "C:\Users\Admin\AppData\Roaming\Java\Update.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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

C:\Users\Admin\AppData\Local\Temp\kHXdG.bat

Filesize
135B

MD5
878503b054ecc45e70d4274136245fe8

SHA1
f1c15d59a5620dfa20041aa8caa5ac1829bd8f71

SHA256
332c8681c2e2844846534c24c7e29966e3d597ec64eb667693a5fe37919a132b

SHA512
7978e2d23a70ce25fbfe40a149b929f7df0cf54cc90f2c506a31a39c6caa517dd4954a9e86b83a979b4154b2a8b94bd827f4767b8981f8dc268d3fa0d957eb25

Download Submit
C:\Users\Admin\AppData\Roaming\Java\Update.exe

Filesize
381KB

MD5
66a296ff8e17020c80cc61f50931ff33

SHA1
13b1b3a05a6bfe43e69ac419537509db02e675fb

SHA256
1172f9a769ad61689bddae58882645f5ccd37ed2881a096fe23d5c120ea20fff

SHA512
b2ad4f4ea38917bd85072bf590a5e3b305e11944581269fc142ebcf5fb15d456088695ae8c7c5ea7439cd72695a813368b706e4042522b0449a2666adfc97f49

Download Submit
memory/644-42-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/644-29-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/644-32-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/644-35-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/644-31-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/644-26-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/868-18-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/868-36-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/4660-0-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/4660-22-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/5008-30-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-48-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-40-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-39-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-38-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-37-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-25-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-23-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-43-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-45-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-46-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-41-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-50-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-52-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-54-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-56-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-58-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-60-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-62-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-64-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-66-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-68-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/5008-70-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads