darkcomet | 2530fd7526e7258be395e2714294e27b5c746d96b027e6fc932530439bf699d4

General

Target

JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe
Size

954KB
MD5

2f7016b37139cfdb90de1b3abefc8e10
SHA1

875034536e5e985b682696278d27f99d8e5d35f0
SHA256

2530fd7526e7258be395e2714294e27b5c746d96b027e6fc932530439bf699d4
SHA512

7644a4b19aaf86ee57c3849dafe5618b6ba6a89c75d3dd19ed85c3685bf6b3dcd96094db8e4d56f48d16181dcbbe3479f34f77c00c98ec43f662ff890ef299a5
SSDEEP

24576:w5403o25rcHLIuzPm4BXHULgy8XuxFi6l43S:wFpUDm+X9+

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

ittechsupport221.no-ip.biz:1604

Mutex

DC_MUTEX-AHK2LFX

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
VpvSCZEtm94V
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

rc4.plain

Extracted

Family

darkcomet

Attributes

gencode
install
false
offline_keylogger
false
persistence
false

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:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	svchost.exe

Executes dropped EXE 2 IoCs

pid	Process
2744	svchost.exe
2944	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
3068	JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe
2744	svchost.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	svchost.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3068 set thread context of 2744	3068	JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeDebugPrivilege	3068	JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe
Token: SeIncreaseQuotaPrivilege	2744	svchost.exe
Token: SeSecurityPrivilege	2744	svchost.exe
Token: SeTakeOwnershipPrivilege	2744	svchost.exe
Token: SeLoadDriverPrivilege	2744	svchost.exe
Token: SeSystemProfilePrivilege	2744	svchost.exe
Token: SeSystemtimePrivilege	2744	svchost.exe
Token: SeProfSingleProcessPrivilege	2744	svchost.exe
Token: SeIncBasePriorityPrivilege	2744	svchost.exe
Token: SeCreatePagefilePrivilege	2744	svchost.exe
Token: SeBackupPrivilege	2744	svchost.exe
Token: SeRestorePrivilege	2744	svchost.exe
Token: SeShutdownPrivilege	2744	svchost.exe
Token: SeDebugPrivilege	2744	svchost.exe
Token: SeSystemEnvironmentPrivilege	2744	svchost.exe
Token: SeChangeNotifyPrivilege	2744	svchost.exe
Token: SeRemoteShutdownPrivilege	2744	svchost.exe
Token: SeUndockPrivilege	2744	svchost.exe
Token: SeManageVolumePrivilege	2744	svchost.exe
Token: SeImpersonatePrivilege	2744	svchost.exe
Token: SeCreateGlobalPrivilege	2744	svchost.exe
Token: 33	2744	svchost.exe
Token: 34	2744	svchost.exe
Token: 35	2744	svchost.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3068 wrote to memory of 2744	3068	JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe	30
PID 3068 wrote to memory of 2744	3068	JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe	30
PID 3068 wrote to memory of 2744	3068	JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe	30
PID 3068 wrote to memory of 2744	3068	JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe	30
PID 3068 wrote to memory of 2744	3068	JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe	30
PID 3068 wrote to memory of 2744	3068	JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe	30
PID 3068 wrote to memory of 2744	3068	JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe	30
PID 3068 wrote to memory of 2744	3068	JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe	30
PID 3068 wrote to memory of 2744	3068	JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe	30
PID 3068 wrote to memory of 2744	3068	JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe	30
PID 3068 wrote to memory of 2744	3068	JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe	30
PID 3068 wrote to memory of 2744	3068	JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe	30
PID 3068 wrote to memory of 2744	3068	JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe	30
PID 2744 wrote to memory of 2944	2744	svchost.exe	31
PID 2744 wrote to memory of 2944	2744	svchost.exe	31
PID 2744 wrote to memory of 2944	2744	svchost.exe	31
PID 2744 wrote to memory of 2944	2744	svchost.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2f7016b37139cfdb90de1b3abefc8e10.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3068
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\svchost.exe
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2744
- - C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
    "C:\Windows\system32\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2944

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

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

Filesize
31KB

MD5
ed797d8dc2c92401985d162e42ffa450

SHA1
0f02fc517c7facc4baefde4fe9467fb6488ebabe

SHA256
b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

SHA512
e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

Download Submit
memory/2744-12-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-11-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-38-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-26-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-19-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-17-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2744-14-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-21-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-13-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-8-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-10-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-9-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-7-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-20-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/3068-2-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/3068-0-0x0000000074A51000-0x0000000074A52000-memory.dmp

Filesize
4KB

Download
memory/3068-31-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/3068-1-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads