darkcomet | e2011aa164a93edf2066d917e3ce2e403629b0ecc83494d48173505784fe5225

General

Target

JaffaCakes118_85bd61b26a3e43e7b28406fcb48e45e3.exe
Size

278KB
MD5

85bd61b26a3e43e7b28406fcb48e45e3
SHA1

c38fb7663b8503a2633ad84a618a3c98cf30b221
SHA256

e2011aa164a93edf2066d917e3ce2e403629b0ecc83494d48173505784fe5225
SHA512

4965b7f43d1ad3f2e22d059fb76e12490aa4b211f26dca52519c5808978897a381f29e7f1f21f33449ad2457449972fc9a798d208db80d12f1017726facab09f
SSDEEP

6144:l4eguxQku0y/3AZIl8VUPx0GId0i/JYkfI1LNhhItGvIr2Va:l/guE0QA21x0zjxQhN5wyVa

Score

10^/10

darkcomet victim discovery rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Victim

C2

genexsection.no-ip.info:3052

Mutex

DC_MUTEX-0HJVFL3

Attributes

gencode
oW-/ti70YGBi
install
false
offline_keylogger
true
password
solowestside
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	VIRUS.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-1-5-21-3920955164-3782810283-1225622749-1000\Control Panel\International\Geo\Nation	JaffaCakes118_85bd61b26a3e43e7b28406fcb48e45e3.exe

Executes dropped EXE 1 IoCs

pid	Process
2752	VIRUS.exe

UPX packed file 17 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000500000002311c-6.dat	upx
behavioral2/memory/2752-10-0x0000000000400000-0x00000000004C5000-memory.dmp	upx
behavioral2/memory/2752-13-0x0000000000400000-0x00000000004C5000-memory.dmp	upx
behavioral2/memory/2752-14-0x0000000000400000-0x00000000004C5000-memory.dmp	upx
behavioral2/memory/2752-16-0x0000000000400000-0x00000000004C5000-memory.dmp	upx
behavioral2/memory/2752-17-0x0000000000400000-0x00000000004C5000-memory.dmp	upx
behavioral2/memory/2752-18-0x0000000000400000-0x00000000004C5000-memory.dmp	upx
behavioral2/memory/2752-19-0x0000000000400000-0x00000000004C5000-memory.dmp	upx
behavioral2/memory/2752-20-0x0000000000400000-0x00000000004C5000-memory.dmp	upx
behavioral2/memory/2752-21-0x0000000000400000-0x00000000004C5000-memory.dmp	upx
behavioral2/memory/2752-22-0x0000000000400000-0x00000000004C5000-memory.dmp	upx
behavioral2/memory/2752-23-0x0000000000400000-0x00000000004C5000-memory.dmp	upx
behavioral2/memory/2752-24-0x0000000000400000-0x00000000004C5000-memory.dmp	upx
behavioral2/memory/2752-25-0x0000000000400000-0x00000000004C5000-memory.dmp	upx
behavioral2/memory/2752-26-0x0000000000400000-0x00000000004C5000-memory.dmp	upx
behavioral2/memory/2752-27-0x0000000000400000-0x00000000004C5000-memory.dmp	upx
behavioral2/memory/2752-28-0x0000000000400000-0x00000000004C5000-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	VIRUS.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	VIRUS.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	VIRUS.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	VIRUS.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	VIRUS.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	VIRUS.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2752	VIRUS.exe
Token: SeSecurityPrivilege	2752	VIRUS.exe
Token: SeTakeOwnershipPrivilege	2752	VIRUS.exe
Token: SeLoadDriverPrivilege	2752	VIRUS.exe
Token: SeSystemProfilePrivilege	2752	VIRUS.exe
Token: SeSystemtimePrivilege	2752	VIRUS.exe
Token: SeProfSingleProcessPrivilege	2752	VIRUS.exe
Token: SeIncBasePriorityPrivilege	2752	VIRUS.exe
Token: SeCreatePagefilePrivilege	2752	VIRUS.exe
Token: SeBackupPrivilege	2752	VIRUS.exe
Token: SeRestorePrivilege	2752	VIRUS.exe
Token: SeShutdownPrivilege	2752	VIRUS.exe
Token: SeDebugPrivilege	2752	VIRUS.exe
Token: SeSystemEnvironmentPrivilege	2752	VIRUS.exe
Token: SeChangeNotifyPrivilege	2752	VIRUS.exe
Token: SeRemoteShutdownPrivilege	2752	VIRUS.exe
Token: SeUndockPrivilege	2752	VIRUS.exe
Token: SeManageVolumePrivilege	2752	VIRUS.exe
Token: SeImpersonatePrivilege	2752	VIRUS.exe
Token: SeCreateGlobalPrivilege	2752	VIRUS.exe
Token: 33	2752	VIRUS.exe
Token: 34	2752	VIRUS.exe
Token: 35	2752	VIRUS.exe
Token: 36	2752	VIRUS.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2752	VIRUS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 2752	1712	JaffaCakes118_85bd61b26a3e43e7b28406fcb48e45e3.exe	86
PID 1712 wrote to memory of 2752	1712	JaffaCakes118_85bd61b26a3e43e7b28406fcb48e45e3.exe	86
PID 1712 wrote to memory of 2752	1712	JaffaCakes118_85bd61b26a3e43e7b28406fcb48e45e3.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_85bd61b26a3e43e7b28406fcb48e45e3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_85bd61b26a3e43e7b28406fcb48e45e3.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Users\Admin\AppData\Local\Temp\VIRUS.exe
  "C:\Users\Admin\AppData\Local\Temp\VIRUS.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 SetWindowsHookEx
  PID:2752

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
269KB

MD5
086b9f25a074a091802849a392a4b5de

SHA1
27c5ea2ae27f16d30971268fde6cd8fa6429d56b

SHA256
cad893b885345a0fc54c10d05b9f6cf601583eaf68a9f369a5d3baee91ab4d66

SHA512
49e893b9a1815d3501237eb325a042ddcd2a88ab8e2f861a71d90bf2ea27c7a7ec592cf1d3cb5c181d806b3b5eefc20f06cbd414efd4bec76adfedf69242e41f

Download Submit
memory/1712-0-0x00007FFC92563000-0x00007FFC92565000-memory.dmp

Filesize
8KB

Download
memory/1712-1-0x0000000000450000-0x000000000049C000-memory.dmp

Filesize
304KB

Download
memory/2752-18-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download
memory/2752-20-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download
memory/2752-13-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download
memory/2752-15-0x0000000000B30000-0x0000000000B31000-memory.dmp

Filesize
4KB

Download
memory/2752-14-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download
memory/2752-16-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download
memory/2752-17-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download
memory/2752-10-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download
memory/2752-19-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download
memory/2752-12-0x0000000000B30000-0x0000000000B31000-memory.dmp

Filesize
4KB

Download
memory/2752-21-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download
memory/2752-22-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download
memory/2752-23-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download
memory/2752-24-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download
memory/2752-25-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download
memory/2752-26-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download
memory/2752-27-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download
memory/2752-28-0x0000000000400000-0x00000000004C5000-memory.dmp

Filesize
788KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads