darkcomet | ef5f586a3eca3d5d12d5d20e69a5d2c1a3c72fc66cd561703afafbad3678593b

General

Target

ee7493d6b299d59fdc2267639a1631c8_JaffaCakes118.exe
Size

423KB
MD5

ee7493d6b299d59fdc2267639a1631c8
SHA1

a457f7fb450b5bf14bcd30456a6d340c0f66d31b
SHA256

ef5f586a3eca3d5d12d5d20e69a5d2c1a3c72fc66cd561703afafbad3678593b
SHA512

9608eabd8465494a00cbafc60c307cf379de89cfc4d8d3c4cf1ac9230f0552b599ac49705a5b1611a850120f1a34b0bf4d5cc1ade4065e78805ff9453218944c
SSDEEP

12288:9HClQ+4hlLZB2Za37Pw/p3JG9ga3MlGqTUDoUkHVg96k6xj:ZC4ga37PM3JSzMlGTrwj

Score

10^/10

darkcomet guest16 discovery rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

canoow.zapto.org:1202

Mutex

DC_MUTEX-F54S21D

Attributes

gencode
ClAmutivr9eS
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet
Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2168 set thread context of 2460	2168	ee7493d6b299d59fdc2267639a1631c8_JaffaCakes118.exe	31
PID 2460 set thread context of 2044	2460	vbc.exe	32

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2460-9-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2460-10-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2460-6-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2460-4-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2460-11-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2460-13-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2460-15-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2460-17-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2460-21-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2460-16-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2460-14-0x0000000000400000-0x00000000004B5000-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	ee7493d6b299d59fdc2267639a1631c8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2460	vbc.exe
Token: SeSecurityPrivilege	2460	vbc.exe
Token: SeTakeOwnershipPrivilege	2460	vbc.exe
Token: SeLoadDriverPrivilege	2460	vbc.exe
Token: SeSystemProfilePrivilege	2460	vbc.exe
Token: SeSystemtimePrivilege	2460	vbc.exe
Token: SeProfSingleProcessPrivilege	2460	vbc.exe
Token: SeIncBasePriorityPrivilege	2460	vbc.exe
Token: SeCreatePagefilePrivilege	2460	vbc.exe
Token: SeBackupPrivilege	2460	vbc.exe
Token: SeRestorePrivilege	2460	vbc.exe
Token: SeShutdownPrivilege	2460	vbc.exe
Token: SeDebugPrivilege	2460	vbc.exe
Token: SeSystemEnvironmentPrivilege	2460	vbc.exe
Token: SeChangeNotifyPrivilege	2460	vbc.exe
Token: SeRemoteShutdownPrivilege	2460	vbc.exe
Token: SeUndockPrivilege	2460	vbc.exe
Token: SeManageVolumePrivilege	2460	vbc.exe
Token: SeImpersonatePrivilege	2460	vbc.exe
Token: SeCreateGlobalPrivilege	2460	vbc.exe
Token: 33	2460	vbc.exe
Token: 34	2460	vbc.exe
Token: 35	2460	vbc.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 2460	2168	ee7493d6b299d59fdc2267639a1631c8_JaffaCakes118.exe	31
PID 2168 wrote to memory of 2460	2168	ee7493d6b299d59fdc2267639a1631c8_JaffaCakes118.exe	31
PID 2168 wrote to memory of 2460	2168	ee7493d6b299d59fdc2267639a1631c8_JaffaCakes118.exe	31
PID 2168 wrote to memory of 2460	2168	ee7493d6b299d59fdc2267639a1631c8_JaffaCakes118.exe	31
PID 2168 wrote to memory of 2460	2168	ee7493d6b299d59fdc2267639a1631c8_JaffaCakes118.exe	31
PID 2168 wrote to memory of 2460	2168	ee7493d6b299d59fdc2267639a1631c8_JaffaCakes118.exe	31
PID 2168 wrote to memory of 2460	2168	ee7493d6b299d59fdc2267639a1631c8_JaffaCakes118.exe	31
PID 2168 wrote to memory of 2460	2168	ee7493d6b299d59fdc2267639a1631c8_JaffaCakes118.exe	31
PID 2460 wrote to memory of 2044	2460	vbc.exe	32
PID 2460 wrote to memory of 2044	2460	vbc.exe	32
PID 2460 wrote to memory of 2044	2460	vbc.exe	32
PID 2460 wrote to memory of 2044	2460	vbc.exe	32
PID 2460 wrote to memory of 2044	2460	vbc.exe	32
PID 2460 wrote to memory of 2044	2460	vbc.exe	32

C:\Users\Admin\AppData\Local\Temp\ee7493d6b299d59fdc2267639a1631c8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ee7493d6b299d59fdc2267639a1631c8_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2460
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:2044

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

memory/2044-18-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/2168-0-0x0000000074841000-0x0000000074842000-memory.dmp

Filesize
4KB

Download
memory/2168-1-0x0000000074840000-0x0000000074DEB000-memory.dmp

Filesize
5.7MB

Download
memory/2168-2-0x0000000074840000-0x0000000074DEB000-memory.dmp

Filesize
5.7MB

Download
memory/2168-12-0x0000000074840000-0x0000000074DEB000-memory.dmp

Filesize
5.7MB

Download
memory/2460-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2460-6-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2460-4-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2460-10-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2460-11-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2460-9-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2460-13-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2460-15-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2460-17-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2460-3-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2460-21-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2460-16-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2460-14-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

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