darkcomet | ccc3f642afaddf0144949679f5228ab215a2784dc814a874b4aba67b22a14c2a

General

Target

JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe
Size

543KB
MD5

10f08c93a2b6b591e89042bc3f693080
SHA1

d501b8b53904b0b114b75d2951e1fc22c5a99b39
SHA256

ccc3f642afaddf0144949679f5228ab215a2784dc814a874b4aba67b22a14c2a
SHA512

7df55762f1ca3e5ddfab0143fdbb832356598ac1a8984b5e7c97cdcaaa22adabaffc47981b7a10ed189a508566e58bdc03c7b28826bbafab062e65bb1464bc09
SSDEEP

12288:uU63xdWrhwW0vYXeZ9m94tu6nlyYpqtr611s:kTohcvYXCDRpqtrOs

Score

10^/10

darkcomet guest16 discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

darkcometger.zapto.org:21

Mutex

DC_MUTEX-474VLNK

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
Y1zERirQMAyb
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

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\\Desktop\\MSDCSC\\msdcsc.exe"	svchost.exe

Executes dropped EXE 2 IoCs

pid	Process
3052	svchost.exe
2104	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2100	JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe
3052	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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Desktop\\MSDCSC\\msdcsc.exe"	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2100 set thread context of 3052	2100	JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe	30

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3052-16-0x0000000000400000-0x00000000004EA000-memory.dmp	upx
behavioral1/memory/3052-18-0x0000000000400000-0x00000000004EA000-memory.dmp	upx
behavioral1/memory/3052-19-0x0000000000400000-0x00000000004EA000-memory.dmp	upx
behavioral1/memory/3052-12-0x0000000000400000-0x00000000004EA000-memory.dmp	upx
behavioral1/memory/3052-10-0x0000000000400000-0x00000000004EA000-memory.dmp	upx
behavioral1/memory/3052-20-0x0000000000400000-0x00000000004EA000-memory.dmp	upx
behavioral1/memory/3052-22-0x0000000000400000-0x00000000004EA000-memory.dmp	upx
behavioral1/memory/3052-24-0x0000000000400000-0x00000000004EA000-memory.dmp	upx
behavioral1/memory/3052-23-0x0000000000400000-0x00000000004EA000-memory.dmp	upx
behavioral1/memory/3052-21-0x0000000000400000-0x00000000004EA000-memory.dmp	upx
behavioral1/memory/3052-36-0x0000000000400000-0x00000000004EA000-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 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_10f08c93a2b6b591e89042bc3f693080.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 28 IoCs

description	pid	Process
Token: SeDebugPrivilege	2100	JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe
Token: 33	2100	JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe
Token: SeIncBasePriorityPrivilege	2100	JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe
Token: 33	2100	JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe
Token: SeIncBasePriorityPrivilege	2100	JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe
Token: SeIncreaseQuotaPrivilege	3052	svchost.exe
Token: SeSecurityPrivilege	3052	svchost.exe
Token: SeTakeOwnershipPrivilege	3052	svchost.exe
Token: SeLoadDriverPrivilege	3052	svchost.exe
Token: SeSystemProfilePrivilege	3052	svchost.exe
Token: SeSystemtimePrivilege	3052	svchost.exe
Token: SeProfSingleProcessPrivilege	3052	svchost.exe
Token: SeIncBasePriorityPrivilege	3052	svchost.exe
Token: SeCreatePagefilePrivilege	3052	svchost.exe
Token: SeBackupPrivilege	3052	svchost.exe
Token: SeRestorePrivilege	3052	svchost.exe
Token: SeShutdownPrivilege	3052	svchost.exe
Token: SeDebugPrivilege	3052	svchost.exe
Token: SeSystemEnvironmentPrivilege	3052	svchost.exe
Token: SeChangeNotifyPrivilege	3052	svchost.exe
Token: SeRemoteShutdownPrivilege	3052	svchost.exe
Token: SeUndockPrivilege	3052	svchost.exe
Token: SeManageVolumePrivilege	3052	svchost.exe
Token: SeImpersonatePrivilege	3052	svchost.exe
Token: SeCreateGlobalPrivilege	3052	svchost.exe
Token: 33	3052	svchost.exe
Token: 34	3052	svchost.exe
Token: 35	3052	svchost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 3052	2100	JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe	30
PID 2100 wrote to memory of 3052	2100	JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe	30
PID 2100 wrote to memory of 3052	2100	JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe	30
PID 2100 wrote to memory of 3052	2100	JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe	30
PID 2100 wrote to memory of 3052	2100	JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe	30
PID 2100 wrote to memory of 3052	2100	JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe	30
PID 2100 wrote to memory of 3052	2100	JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe	30
PID 2100 wrote to memory of 3052	2100	JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe	30
PID 3052 wrote to memory of 2104	3052	svchost.exe	31
PID 3052 wrote to memory of 2104	3052	svchost.exe	31
PID 3052 wrote to memory of 2104	3052	svchost.exe	31
PID 3052 wrote to memory of 2104	3052	svchost.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_10f08c93a2b6b591e89042bc3f693080.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Users\Admin\AppData\Local\Temp\App\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\\App\svchost.exe
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3052
- - C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2104

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\App\svchost.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/2100-0-0x0000000074B81000-0x0000000074B82000-memory.dmp

Filesize
4KB

Download
memory/2100-1-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/2100-2-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/2100-37-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/3052-12-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3052-19-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3052-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3052-18-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3052-10-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3052-9-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3052-20-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3052-22-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3052-24-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3052-23-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3052-21-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3052-36-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3052-16-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads