darkcomet | 4ba66678f757c0c2cb9b6469e14f02c403faba9b95e17600dc2a7a7d92bcb0ff

General

Target

JaffaCakes118_1298c60186fbfa7134485df1c48c6e5b.exe
Size

678KB
MD5

1298c60186fbfa7134485df1c48c6e5b
SHA1

595ca17b786b4d6b7d2d80e711199f5ebefc902f
SHA256

4ba66678f757c0c2cb9b6469e14f02c403faba9b95e17600dc2a7a7d92bcb0ff
SHA512

0cae4195d607492fd94254487ae8642198b2f37ffac3b0eba45f8a78f3e11801d38162a041d94edf96f92cd1b69b90f3857806e2d620b1bab2e6bc451433bc1e
SSDEEP

12288:VoVTm259rPA2aHlEXpuOn850DLrh1QZZeetfKoF/xELQdD4aqt:uX5hPA2aHlsBDLV10ZeUf2kZno

Score

10^/10

darkcomet discovery rat trojan upx

Malware Config

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	CryptedFile.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_1298c60186fbfa7134485df1c48c6e5b.exe

Executes dropped EXE 1 IoCs

pid	Process
4996	CryptedFile.exe

UPX packed file 17 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000200000001e733-15.dat	upx
behavioral2/memory/4996-18-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral2/memory/4996-23-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral2/memory/4996-24-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral2/memory/4996-26-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral2/memory/4996-27-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral2/memory/4996-28-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral2/memory/4996-29-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral2/memory/4996-30-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral2/memory/4996-31-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral2/memory/4996-32-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral2/memory/4996-33-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral2/memory/4996-34-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral2/memory/4996-35-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral2/memory/4996-36-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral2/memory/4996-37-0x0000000000400000-0x00000000004E5000-memory.dmp	upx
behavioral2/memory/4996-38-0x0000000000400000-0x00000000004E5000-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 1 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	CryptedFile.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	CryptedFile.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	CryptedFile.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	CryptedFile.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	CryptedFile.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	CryptedFile.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	2240	JaffaCakes118_1298c60186fbfa7134485df1c48c6e5b.exe
Token: SeIncreaseQuotaPrivilege	4996	CryptedFile.exe
Token: SeSecurityPrivilege	4996	CryptedFile.exe
Token: SeTakeOwnershipPrivilege	4996	CryptedFile.exe
Token: SeLoadDriverPrivilege	4996	CryptedFile.exe
Token: SeSystemProfilePrivilege	4996	CryptedFile.exe
Token: SeSystemtimePrivilege	4996	CryptedFile.exe
Token: SeProfSingleProcessPrivilege	4996	CryptedFile.exe
Token: SeIncBasePriorityPrivilege	4996	CryptedFile.exe
Token: SeCreatePagefilePrivilege	4996	CryptedFile.exe
Token: SeBackupPrivilege	4996	CryptedFile.exe
Token: SeRestorePrivilege	4996	CryptedFile.exe
Token: SeShutdownPrivilege	4996	CryptedFile.exe
Token: SeDebugPrivilege	4996	CryptedFile.exe
Token: SeSystemEnvironmentPrivilege	4996	CryptedFile.exe
Token: SeChangeNotifyPrivilege	4996	CryptedFile.exe
Token: SeRemoteShutdownPrivilege	4996	CryptedFile.exe
Token: SeUndockPrivilege	4996	CryptedFile.exe
Token: SeManageVolumePrivilege	4996	CryptedFile.exe
Token: SeImpersonatePrivilege	4996	CryptedFile.exe
Token: SeCreateGlobalPrivilege	4996	CryptedFile.exe
Token: 33	4996	CryptedFile.exe
Token: 34	4996	CryptedFile.exe
Token: 35	4996	CryptedFile.exe
Token: 36	4996	CryptedFile.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 4996	2240	JaffaCakes118_1298c60186fbfa7134485df1c48c6e5b.exe	84
PID 2240 wrote to memory of 4996	2240	JaffaCakes118_1298c60186fbfa7134485df1c48c6e5b.exe	84
PID 2240 wrote to memory of 4996	2240	JaffaCakes118_1298c60186fbfa7134485df1c48c6e5b.exe	84
PID 4996 wrote to memory of 3664	4996	CryptedFile.exe	93
PID 4996 wrote to memory of 3664	4996	CryptedFile.exe	93
PID 4996 wrote to memory of 3664	4996	CryptedFile.exe	93

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1298c60186fbfa7134485df1c48c6e5b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1298c60186fbfa7134485df1c48c6e5b.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Local\Temp\CryptedFile.exe
  "C:\Users\Admin\AppData\Local\Temp\CryptedFile.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
  - Suspicious use of WriteProcessMemory
  PID:4996
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    PID:3664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

4

T1012

System Information Discovery

5

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\CryptedFile.exe

Filesize
331KB

MD5
32b9a74643fa934e63f3d53af1b2e7c1

SHA1
b71b62ed3bad11c878660fcfb4414cfbad304462

SHA256
becdc86144b08999c4cc55ea685d34dd67cfe37d139b635903b47af73593bfde

SHA512
7d810203f193bfe7e6c247ae814a1a9cb9b2ddfb8a6e5852f064dba38339f339ef83216ed8c822aaf29ad06b620b731b0609c520c90f83859e8daa7904efcfd3

Download Submit
memory/2240-6-0x000000001B9D0000-0x000000001B9D8000-memory.dmp

Filesize
32KB

Download
memory/2240-2-0x00007FFB76660000-0x00007FFB77001000-memory.dmp

Filesize
9.6MB

Download
memory/2240-3-0x00007FFB76660000-0x00007FFB77001000-memory.dmp

Filesize
9.6MB

Download
memory/2240-4-0x000000001C4B0000-0x000000001C97E000-memory.dmp

Filesize
4.8MB

Download
memory/2240-5-0x000000001BAF0000-0x000000001BB8C000-memory.dmp

Filesize
624KB

Download
memory/2240-21-0x00007FFB76660000-0x00007FFB77001000-memory.dmp

Filesize
9.6MB

Download
memory/2240-7-0x000000001CF40000-0x000000001CF8C000-memory.dmp

Filesize
304KB

Download
memory/2240-8-0x00007FFB76915000-0x00007FFB76916000-memory.dmp

Filesize
4KB

Download
memory/2240-9-0x00007FFB76660000-0x00007FFB77001000-memory.dmp

Filesize
9.6MB

Download
memory/2240-10-0x00007FFB76660000-0x00007FFB77001000-memory.dmp

Filesize
9.6MB

Download
memory/2240-1-0x000000001B910000-0x000000001B9B6000-memory.dmp

Filesize
664KB

Download
memory/2240-0-0x00007FFB76915000-0x00007FFB76916000-memory.dmp

Filesize
4KB

Download
memory/4996-22-0x0000000002300000-0x0000000002301000-memory.dmp

Filesize
4KB

Download
memory/4996-30-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/4996-23-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/4996-25-0x0000000002300000-0x0000000002301000-memory.dmp

Filesize
4KB

Download
memory/4996-24-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/4996-26-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/4996-27-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/4996-28-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/4996-29-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/4996-18-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/4996-31-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/4996-32-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/4996-33-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/4996-34-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/4996-35-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/4996-36-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/4996-37-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/4996-38-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads