darkcomet | 3fad06ea2340196a6ef3de8459bbb4f8be381e9e01f10d7ef8dc483f17d05242

General

Target

JaffaCakes118_40f3221ba41342f517a04101ada17938.exe
Size

1.1MB
MD5

40f3221ba41342f517a04101ada17938
SHA1

419335c0068763c3c0954fb92b28ff9991fdee51
SHA256

3fad06ea2340196a6ef3de8459bbb4f8be381e9e01f10d7ef8dc483f17d05242
SHA512

fe3df8bc3371f39acb98942e27fba10776c5629f2e905102d488d4c8fe4514a0fd90c5bd0adce09e53345d92fc8b769ddf2158638c2198def6ca029fdab0a3b8
SSDEEP

12288:SQS6a/lHd/yKq+7D1sIM9kvLlH++OU2hsPhGJDtACYTLMIy+10kKquKw4EUYRHkv:aLPgnIhIaMtY01FT+RqLjP0D

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

selmi.no-ip.org:1604

Mutex

DC_MUTEX-SFCCS64

Attributes

gencode
kgDcLdg0fqJQ
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

Executes dropped EXE 1 IoCs

pid	Process
2416	vbc.exe

Loads dropped DLL 1 IoCs

pid	Process
1800	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\JavaUpdtr = "C:\\Users\\Admin\\AppData\\Roaming\\JavaUpdtr\\JaffaCakes118_40f3221ba41342f517a04101ada17938.exe"	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1800 set thread context of 2416	1800	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe	30

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 2 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_40f3221ba41342f517a04101ada17938.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1800	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeDebugPrivilege	1800	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe
Token: SeIncreaseQuotaPrivilege	2416	vbc.exe
Token: SeSecurityPrivilege	2416	vbc.exe
Token: SeTakeOwnershipPrivilege	2416	vbc.exe
Token: SeLoadDriverPrivilege	2416	vbc.exe
Token: SeSystemProfilePrivilege	2416	vbc.exe
Token: SeSystemtimePrivilege	2416	vbc.exe
Token: SeProfSingleProcessPrivilege	2416	vbc.exe
Token: SeIncBasePriorityPrivilege	2416	vbc.exe
Token: SeCreatePagefilePrivilege	2416	vbc.exe
Token: SeBackupPrivilege	2416	vbc.exe
Token: SeRestorePrivilege	2416	vbc.exe
Token: SeShutdownPrivilege	2416	vbc.exe
Token: SeDebugPrivilege	2416	vbc.exe
Token: SeSystemEnvironmentPrivilege	2416	vbc.exe
Token: SeChangeNotifyPrivilege	2416	vbc.exe
Token: SeRemoteShutdownPrivilege	2416	vbc.exe
Token: SeUndockPrivilege	2416	vbc.exe
Token: SeManageVolumePrivilege	2416	vbc.exe
Token: SeImpersonatePrivilege	2416	vbc.exe
Token: SeCreateGlobalPrivilege	2416	vbc.exe
Token: 33	2416	vbc.exe
Token: 34	2416	vbc.exe
Token: 35	2416	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2416	vbc.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1800 wrote to memory of 2416	1800	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe	30
PID 1800 wrote to memory of 2416	1800	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe	30
PID 1800 wrote to memory of 2416	1800	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe	30
PID 1800 wrote to memory of 2416	1800	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe	30
PID 1800 wrote to memory of 2416	1800	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe	30
PID 1800 wrote to memory of 2416	1800	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe	30
PID 1800 wrote to memory of 2416	1800	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe	30
PID 1800 wrote to memory of 2416	1800	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe	30
PID 1800 wrote to memory of 2416	1800	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe	30
PID 1800 wrote to memory of 2416	1800	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe	30
PID 1800 wrote to memory of 2416	1800	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe	30
PID 1800 wrote to memory of 2416	1800	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe	30
PID 1800 wrote to memory of 2416	1800	JaffaCakes118_40f3221ba41342f517a04101ada17938.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40f3221ba41342f517a04101ada17938.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_40f3221ba41342f517a04101ada17938.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1800
- C:\Users\Admin\AppData\Local\Temp\vbc.exe
  C:\Users\Admin\AppData\Local\Temp\vbc.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2416

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

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\vbc.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/1800-1-0x0000000074830000-0x0000000074DDB000-memory.dmp

Filesize
5.7MB

Download
memory/1800-2-0x0000000074830000-0x0000000074DDB000-memory.dmp

Filesize
5.7MB

Download
memory/1800-28-0x0000000074830000-0x0000000074DDB000-memory.dmp

Filesize
5.7MB

Download
memory/1800-0-0x0000000074831000-0x0000000074832000-memory.dmp

Filesize
4KB

Download
memory/2416-14-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-12-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2416-16-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-15-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-13-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-23-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-24-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-27-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-26-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-21-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-11-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-10-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-19-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-9-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-22-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-29-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-30-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-31-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-32-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-33-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-34-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-35-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-36-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-37-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-38-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-39-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-40-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-41-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-42-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-43-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads