darkcomet | d3edc343f071a47bc8a914b0bf509fbff7f0db13090a22adb831fdb294ace0a2

General

Target

940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe
Size

1.4MB
MD5

940b21191a812cb31f7676b6a8e33a49
SHA1

6e349291628eff88c133a872adfa8ec7cd0ef39d
SHA256

d3edc343f071a47bc8a914b0bf509fbff7f0db13090a22adb831fdb294ace0a2
SHA512

a035c8b4c7a02ff08a13097d6b71c5d0657413ccf99ad7a4645d907404dd63cba4e7b64c81f1bf7962d4135b8e9dc0928a764f11cc3980434df4ada2bf73802e
SSDEEP

24576:Qo8Wgv5HmVY5zSlQDGcjPnwl9mP4ZtpBaodNM+GbiXiyRBvzt92QQpyy6XBkUAk:QSsGVcWInwl9mAHpBh30iXiuBvzt92OV

Score

10^/10

darkcomet mc discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

mc

C2

cookie.no-ip.biz:5555

Mutex

DCMIN_MUTEX-XHXZD7E

Attributes

gencode
D8FQkNMGT4Ke
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
3636	csrss.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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "C:\\Users\\Admin\\AppData\\Local\\Temp\\csrss.exe"	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1364 set thread context of 3636	1364	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	83

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	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrss.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	1364	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3636	csrss.exe
Token: SeSecurityPrivilege	3636	csrss.exe
Token: SeTakeOwnershipPrivilege	3636	csrss.exe
Token: SeLoadDriverPrivilege	3636	csrss.exe
Token: SeSystemProfilePrivilege	3636	csrss.exe
Token: SeSystemtimePrivilege	3636	csrss.exe
Token: SeProfSingleProcessPrivilege	3636	csrss.exe
Token: SeIncBasePriorityPrivilege	3636	csrss.exe
Token: SeCreatePagefilePrivilege	3636	csrss.exe
Token: SeBackupPrivilege	3636	csrss.exe
Token: SeRestorePrivilege	3636	csrss.exe
Token: SeShutdownPrivilege	3636	csrss.exe
Token: SeDebugPrivilege	3636	csrss.exe
Token: SeSystemEnvironmentPrivilege	3636	csrss.exe
Token: SeChangeNotifyPrivilege	3636	csrss.exe
Token: SeRemoteShutdownPrivilege	3636	csrss.exe
Token: SeUndockPrivilege	3636	csrss.exe
Token: SeManageVolumePrivilege	3636	csrss.exe
Token: SeImpersonatePrivilege	3636	csrss.exe
Token: SeCreateGlobalPrivilege	3636	csrss.exe
Token: 33	3636	csrss.exe
Token: 34	3636	csrss.exe
Token: 35	3636	csrss.exe
Token: 36	3636	csrss.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3636	csrss.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1364 wrote to memory of 3636	1364	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	83
PID 1364 wrote to memory of 3636	1364	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	83
PID 1364 wrote to memory of 3636	1364	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	83
PID 1364 wrote to memory of 3636	1364	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	83
PID 1364 wrote to memory of 3636	1364	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	83
PID 1364 wrote to memory of 3636	1364	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	83
PID 1364 wrote to memory of 3636	1364	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	83
PID 1364 wrote to memory of 3636	1364	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	83
PID 1364 wrote to memory of 3636	1364	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	83
PID 1364 wrote to memory of 3636	1364	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	83
PID 1364 wrote to memory of 3636	1364	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	83
PID 1364 wrote to memory of 3636	1364	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	83
PID 1364 wrote to memory of 3636	1364	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	83
PID 1364 wrote to memory of 3636	1364	940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\940b21191a812cb31f7676b6a8e33a49_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1364
- C:\Users\Admin\AppData\Local\Temp\csrss.exe
  C:\Users\Admin\AppData\Local\Temp\csrss.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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Downloads

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

Filesize
34KB

MD5
e118330b4629b12368d91b9df6488be0

SHA1
ce90218c7e3b90df2a3409ec253048bb6472c2fd

SHA256
3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

SHA512
ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

Download Submit
memory/1364-0-0x00000000748B2000-0x00000000748B3000-memory.dmp

Filesize
4KB

Download
memory/1364-1-0x00000000748B0000-0x0000000074E61000-memory.dmp

Filesize
5.7MB

Download
memory/1364-2-0x00000000748B0000-0x0000000074E61000-memory.dmp

Filesize
5.7MB

Download
memory/1364-17-0x00000000748B0000-0x0000000074E61000-memory.dmp

Filesize
5.7MB

Download
memory/3636-16-0x00000000025D0000-0x00000000025D1000-memory.dmp

Filesize
4KB

Download
memory/3636-13-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3636-15-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3636-8-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3636-11-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3636-19-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3636-18-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3636-20-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3636-21-0x00000000025D0000-0x00000000025D1000-memory.dmp

Filesize
4KB

Download
memory/3636-23-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3636-25-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3636-31-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3636-33-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads