darkcomet | dcf6d679a94299fc11d2dc9357c7cef2a8a1f9c3e28d97eb2abad8ed6cdcc882

General

Target

JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe
Size

677KB
MD5

d56f0113b4386dff6fff45c0ec8a5d28
SHA1

f3ff7aeac0dcdf3c04df4413ee11ad0ff3f6b05e
SHA256

dcf6d679a94299fc11d2dc9357c7cef2a8a1f9c3e28d97eb2abad8ed6cdcc882
SHA512

055bce042e1e0b9e10d2f90fde61f4dab24ba366bc1877fe153ae04b82903d7db8321cd3bd3239f41cfb03a1f5b86db0ac2d3cf68610e8ca383ac29f88278dbd
SSDEEP

12288:js+WXDcUFyJHw5EjUwvSP2x02peKEwDRvzunqAG3rMa/gUIxuwIe8sEyY47Ykie/:jWEHZxXAn3m

Score

10^/10

darkcomet guest16 discovery rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-F54S21D

Attributes

gencode
MLqT3mDNi*T.
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

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	svhost.exe

Executes dropped EXE 1 IoCs

pid	Process
2896	svhost.exe

Loads dropped DLL 2 IoCs

pid	Process
2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe
2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2072 set thread context of 2896	2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe	32

UPX packed file 28 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2896-12-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-20-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-22-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-26-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-28-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-30-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-29-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-27-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-25-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-24-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-18-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-14-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-31-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-32-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-33-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-34-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-35-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-36-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-37-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-38-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-39-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-40-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-41-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-42-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-43-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-44-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-45-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2896-46-0x0000000000400000-0x00000000004B5000-memory.dmp	upx

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_d56f0113b4386dff6fff45c0ec8a5d28.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	svhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	svhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	svhost.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	svhost.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe
2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe
2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe
2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe
2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe
2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe
2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe
2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe
2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeDebugPrivilege	2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe
Token: SeIncreaseQuotaPrivilege	2896	svhost.exe
Token: SeSecurityPrivilege	2896	svhost.exe
Token: SeTakeOwnershipPrivilege	2896	svhost.exe
Token: SeLoadDriverPrivilege	2896	svhost.exe
Token: SeSystemProfilePrivilege	2896	svhost.exe
Token: SeSystemtimePrivilege	2896	svhost.exe
Token: SeProfSingleProcessPrivilege	2896	svhost.exe
Token: SeIncBasePriorityPrivilege	2896	svhost.exe
Token: SeCreatePagefilePrivilege	2896	svhost.exe
Token: SeBackupPrivilege	2896	svhost.exe
Token: SeRestorePrivilege	2896	svhost.exe
Token: SeShutdownPrivilege	2896	svhost.exe
Token: SeDebugPrivilege	2896	svhost.exe
Token: SeSystemEnvironmentPrivilege	2896	svhost.exe
Token: SeChangeNotifyPrivilege	2896	svhost.exe
Token: SeRemoteShutdownPrivilege	2896	svhost.exe
Token: SeUndockPrivilege	2896	svhost.exe
Token: SeManageVolumePrivilege	2896	svhost.exe
Token: SeImpersonatePrivilege	2896	svhost.exe
Token: SeCreateGlobalPrivilege	2896	svhost.exe
Token: 33	2896	svhost.exe
Token: 34	2896	svhost.exe
Token: 35	2896	svhost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 1868	2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe	31
PID 2072 wrote to memory of 1868	2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe	31
PID 2072 wrote to memory of 1868	2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe	31
PID 2072 wrote to memory of 1868	2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe	31
PID 2072 wrote to memory of 2896	2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe	32
PID 2072 wrote to memory of 2896	2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe	32
PID 2072 wrote to memory of 2896	2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe	32
PID 2072 wrote to memory of 2896	2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe	32
PID 2072 wrote to memory of 2896	2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe	32
PID 2072 wrote to memory of 2896	2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe	32
PID 2072 wrote to memory of 2896	2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe	32
PID 2072 wrote to memory of 2896	2072	JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d56f0113b4386dff6fff45c0ec8a5d28.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2072
- C:\Users\Admin\AppData\Local\Temp\winamp\svhost.exe
  C:\Users\Admin\AppData\Local\Temp\\winamp\svhost.exe
  2⤵
  PID:1868
- C:\Users\Admin\AppData\Local\Temp\winamp\svhost.exe
  C:\Users\Admin\AppData\Local\Temp\\winamp\svhost.exe
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:2896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\winamp\svhost.exe

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/2072-23-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/2072-1-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/2072-2-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/2072-0-0x00000000743D1000-0x00000000743D2000-memory.dmp

Filesize
4KB

Download
memory/2896-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2896-32-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-26-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-28-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-30-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-29-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-27-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-25-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-24-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-20-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-18-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-12-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-11-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-14-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-31-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-22-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-33-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-34-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-35-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-36-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-37-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-38-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-39-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-40-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-41-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-42-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-43-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-44-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-45-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2896-46-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads