darkcomet | 39f09e2c04da023e4fe7faa8cec8c8a687282937452b517a788a9bd78e6b2aee

General

Target

5146e65e61c6f24bdcbc7773aa5eb156.exe
Size

987KB
MD5

5146e65e61c6f24bdcbc7773aa5eb156
SHA1

a97a13206540d85a9e37258c9724291b9ee0b848
SHA256

39f09e2c04da023e4fe7faa8cec8c8a687282937452b517a788a9bd78e6b2aee
SHA512

cd665ca5a8c6da6d3cee7a1e81c255876121807ffddd7c25d1eb66a35782fca721ba29efe4f9078c3595b3d5f1c7e3c2d9f4dee25c8950d0912070fb6920d26f
SSDEEP

24576:rEXTtkffMO+aqv1NE/9W4EaknORauZemAo:GxkKU/9HEka

Score

10^/10

darkcomet guest16 persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

rat644.no-ip.info:1604

127.0.0.1:1604

Mutex

DC_MUTEX-F54S21D

Attributes

gencode
4dDVFeSMr7im
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Executes dropped EXE 1 IoCs

pid	Process
3704	winlogon.exe

UPX packed file 23 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3704-7-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-11-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-12-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-14-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-16-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-19-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-18-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-15-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-27-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-29-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-30-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-32-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-33-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-34-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-35-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-36-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-37-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-38-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-39-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-40-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-41-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-42-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3704-43-0x0000000000400000-0x00000000004B5000-memory.dmp	upx

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-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Java = "C:\\Users\\Admin\\AppData\\Roaming\\Java.exe"	5146e65e61c6f24bdcbc7773aa5eb156.exe

Drops autorun.inf file 1 TTPs 2 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File created	C:\autorun.inf	5146e65e61c6f24bdcbc7773aa5eb156.exe
File opened for modification	C:\autorun.inf	5146e65e61c6f24bdcbc7773aa5eb156.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2804 set thread context of 3704	2804	5146e65e61c6f24bdcbc7773aa5eb156.exe	92

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3704	winlogon.exe
Token: SeSecurityPrivilege	3704	winlogon.exe
Token: SeTakeOwnershipPrivilege	3704	winlogon.exe
Token: SeLoadDriverPrivilege	3704	winlogon.exe
Token: SeSystemProfilePrivilege	3704	winlogon.exe
Token: SeSystemtimePrivilege	3704	winlogon.exe
Token: SeProfSingleProcessPrivilege	3704	winlogon.exe
Token: SeIncBasePriorityPrivilege	3704	winlogon.exe
Token: SeCreatePagefilePrivilege	3704	winlogon.exe
Token: SeBackupPrivilege	3704	winlogon.exe
Token: SeRestorePrivilege	3704	winlogon.exe
Token: SeShutdownPrivilege	3704	winlogon.exe
Token: SeDebugPrivilege	3704	winlogon.exe
Token: SeSystemEnvironmentPrivilege	3704	winlogon.exe
Token: SeChangeNotifyPrivilege	3704	winlogon.exe
Token: SeRemoteShutdownPrivilege	3704	winlogon.exe
Token: SeUndockPrivilege	3704	winlogon.exe
Token: SeManageVolumePrivilege	3704	winlogon.exe
Token: SeImpersonatePrivilege	3704	winlogon.exe
Token: SeCreateGlobalPrivilege	3704	winlogon.exe
Token: 33	3704	winlogon.exe
Token: 34	3704	winlogon.exe
Token: 35	3704	winlogon.exe
Token: 36	3704	winlogon.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3704	winlogon.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2804 wrote to memory of 3704	2804	5146e65e61c6f24bdcbc7773aa5eb156.exe	92
PID 2804 wrote to memory of 3704	2804	5146e65e61c6f24bdcbc7773aa5eb156.exe	92
PID 2804 wrote to memory of 3704	2804	5146e65e61c6f24bdcbc7773aa5eb156.exe	92
PID 2804 wrote to memory of 3704	2804	5146e65e61c6f24bdcbc7773aa5eb156.exe	92
PID 2804 wrote to memory of 3704	2804	5146e65e61c6f24bdcbc7773aa5eb156.exe	92
PID 2804 wrote to memory of 3704	2804	5146e65e61c6f24bdcbc7773aa5eb156.exe	92
PID 2804 wrote to memory of 3704	2804	5146e65e61c6f24bdcbc7773aa5eb156.exe	92
PID 2804 wrote to memory of 3704	2804	5146e65e61c6f24bdcbc7773aa5eb156.exe	92

C:\Users\Admin\AppData\Local\Temp\5146e65e61c6f24bdcbc7773aa5eb156.exe
"C:\Users\Admin\AppData\Local\Temp\5146e65e61c6f24bdcbc7773aa5eb156.exe"
1⤵
- Adds Run key to start application
- Drops autorun.inf file
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2804
- C:\Users\Admin\AppData\Local\Temp\plugtmp\winlogon.exe
  C:\Users\Admin\AppData\Local\Temp\\plugtmp\winlogon.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

1

T1091

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\plugtmp\winlogon.exe

Filesize
1.1MB

MD5
d881de17aa8f2e2c08cbb7b265f928f9

SHA1
08936aebc87decf0af6e8eada191062b5e65ac2a

SHA256
b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

SHA512
5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

Download Submit
C:\Users\Admin\AppData\Local\Temp\plugtmp\winlogon.exe

Filesize
1.1MB

MD5
491ff48ea9764d57d11c326eb06c3c67

SHA1
20911a237fed093b7ddac2987204ef5e2ab1db4c

SHA256
8e87102a0b77c4a13130dea728d0d1883a916fdabcab317217f8b63503dbf716

SHA512
6bf4939d58611db417a4f0a9e14150bde86c419749090eb8f28d64adc6af5f3c34baa59103d3368de348e1a30eeea9767691c8789d18bb2081112de48ce21338

Download Submit
memory/2804-25-0x0000000001880000-0x0000000001890000-memory.dmp

Filesize
64KB

Download
memory/2804-1-0x0000000074CA0000-0x0000000075251000-memory.dmp

Filesize
5.7MB

Download
memory/2804-2-0x0000000001880000-0x0000000001890000-memory.dmp

Filesize
64KB

Download
memory/2804-31-0x0000000001880000-0x0000000001890000-memory.dmp

Filesize
64KB

Download
memory/2804-28-0x0000000001880000-0x0000000001890000-memory.dmp

Filesize
64KB

Download
memory/2804-0-0x0000000074CA0000-0x0000000075251000-memory.dmp

Filesize
5.7MB

Download
memory/2804-26-0x0000000074CA0000-0x0000000075251000-memory.dmp

Filesize
5.7MB

Download
memory/3704-27-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-7-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-18-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-17-0x0000000000AF0000-0x0000000000AF1000-memory.dmp

Filesize
4KB

Download
memory/3704-15-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-16-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-14-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-12-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-11-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-29-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-30-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-19-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-32-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-33-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-34-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-35-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-36-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-37-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-38-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-39-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-40-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-41-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-42-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3704-43-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads