darkcomet | 5918de565bef17006e9b3ec2ef017d786aad4f27f2912fea242d471f52e33652

General

Target

JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Size

1.4MB
MD5

2bd7cd4c15fa82d33dfbbd63fe751be6
SHA1

0876eedc0333955f4c471c2cec441e4155e9e71f
SHA256

5918de565bef17006e9b3ec2ef017d786aad4f27f2912fea242d471f52e33652
SHA512

17839fee0efa17e108a909768ca5e195673338177ea7f3b919436fd3c2cfdab8a441eec546337cec04df6f5e3a4017f6885ad855d67cb9f0efbc3a8643ad74f7
SSDEEP

24576:kRmJkcoQricOIQxiZY1ia3BEX7o0wAZbn8DEu94ZcvAm45:hJZoQrbTFZY1iaREXk0wWbT+4+om45

Score

10^/10

darkcomet guest16_min discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

C2

176.31.65.184:1604

Mutex

DCMIN_MUTEX-GMFC3TS

Attributes

InstallPath
DCSCMIN\IMDCSC.exe
gencode
ysRvVVnKt7W8
install
true
offline_keylogger
true
persistence
false
reg_key
DarkComet RAT

rc4.plain

Signatures

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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe

Executes dropped EXE 2 IoCs

pid	Process
2140	IMDCSC.exe
2732	IMDCSC.exe

Loads dropped DLL 2 IoCs

pid	Process
2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
2140	IMDCSC.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\DarkComet RAT = "C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x00080000000167dc-28.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1952 set thread context of 2120	1952	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.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 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_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IMDCSC.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeSecurityPrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeTakeOwnershipPrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeLoadDriverPrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeSystemProfilePrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeSystemtimePrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeProfSingleProcessPrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeIncBasePriorityPrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeCreatePagefilePrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeBackupPrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeRestorePrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeShutdownPrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeDebugPrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeSystemEnvironmentPrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeChangeNotifyPrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeRemoteShutdownPrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeUndockPrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeManageVolumePrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeImpersonatePrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: SeCreateGlobalPrivilege	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: 33	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: 34	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
Token: 35	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1952 wrote to memory of 2120	1952	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe	30
PID 1952 wrote to memory of 2120	1952	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe	30
PID 1952 wrote to memory of 2120	1952	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe	30
PID 1952 wrote to memory of 2120	1952	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe	30
PID 1952 wrote to memory of 2120	1952	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe	30
PID 1952 wrote to memory of 2120	1952	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe	30
PID 2120 wrote to memory of 2140	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe	31
PID 2120 wrote to memory of 2140	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe	31
PID 2120 wrote to memory of 2140	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe	31
PID 2120 wrote to memory of 2140	2120	JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe	31
PID 2140 wrote to memory of 2732	2140	IMDCSC.exe	32
PID 2140 wrote to memory of 2732	2140	IMDCSC.exe	32
PID 2140 wrote to memory of 2732	2140	IMDCSC.exe	32
PID 2140 wrote to memory of 2732	2140	IMDCSC.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2bd7cd4c15fa82d33dfbbd63fe751be6.exe
  2⤵
  - Modifies WinLogon for persistence
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2120
- - C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
    "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2140
  - - C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
      C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
      4⤵
      Executes dropped EXE
      PID:2732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

2

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

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Downloads

C:\Users\Admin\AppData\Roaming\sfe.rtf

Filesize
658KB

MD5
49f223898e90c95b6c98411133a12816

SHA1
afc1731f4a3560f7039018f47a227a6f47714301

SHA256
412ecb8fe3a0e86e6b4e66617aab5bdbcff76f06d529cd7bc6eeba336746ebcd

SHA512
40b8d8e1a268cf801e59c608beefd2bbd028f059586fdb33664def072b7aea34317dd58e80426d543b02e2835f322c70b4b9ef8a12cb121e19e0dcd6f657ef4a

Download Submit
\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

Filesize
1.4MB

MD5
2bd7cd4c15fa82d33dfbbd63fe751be6

SHA1
0876eedc0333955f4c471c2cec441e4155e9e71f

SHA256
5918de565bef17006e9b3ec2ef017d786aad4f27f2912fea242d471f52e33652

SHA512
17839fee0efa17e108a909768ca5e195673338177ea7f3b919436fd3c2cfdab8a441eec546337cec04df6f5e3a4017f6885ad855d67cb9f0efbc3a8643ad74f7

Download Submit
memory/2120-15-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2120-14-0x00000000000C0000-0x0000000000172000-memory.dmp

Filesize
712KB

Download
memory/2120-13-0x00000000000C0000-0x0000000000172000-memory.dmp

Filesize
712KB

Download
memory/2120-12-0x00000000000C0000-0x0000000000172000-memory.dmp

Filesize
712KB

Download
memory/2120-10-0x00000000000C0000-0x0000000000172000-memory.dmp

Filesize
712KB

Download
memory/2120-8-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2120-6-0x00000000000C0000-0x0000000000172000-memory.dmp

Filesize
712KB

Download
memory/2120-30-0x00000000000C0000-0x0000000000172000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads