darkcomet | f144ad04d245bcf8b95722f9e7de1665241619a75617e34e0f2f8293049f53c6

General

Target

c5299b30da386f35f3790d319f0e36b1_JaffaCakes118.exe
Size

317KB
MD5

c5299b30da386f35f3790d319f0e36b1
SHA1

71becf548d73aa07d1f30249b6408d8abcedb255
SHA256

f144ad04d245bcf8b95722f9e7de1665241619a75617e34e0f2f8293049f53c6
SHA512

22f88d77dc54f34df03937bf1c6b62fe7a37289f9696703ee5fdc5fbd04c1ae9d9c1465629454668021ed8775125f0cdc13991ad056e413246d03f4539407b7f
SSDEEP

6144:8SncRlBBJVqu5jxRl+t6Ge0qw0kw9+Ks9a8/7z6lnHru2k/:d4ztqwjxRl+t6GfL7zc62k/

Score

10^/10

darkcomet guest16 discovery rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

75.180.11.221:4321

Mutex

DC_MUTEX-F54S21D

Attributes

gencode
T0evbHCJMLWj
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

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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	c5299b30da386f35f3790d319f0e36b1_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
872	LUCIDCA PUBLIC.EXE

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000a000000023bcd-4.dat	upx
behavioral2/memory/872-11-0x0000000000400000-0x00000000004BE000-memory.dmp	upx
behavioral2/memory/872-14-0x0000000000400000-0x00000000004BE000-memory.dmp	upx
behavioral2/memory/872-18-0x0000000000400000-0x00000000004BE000-memory.dmp	upx
behavioral2/memory/872-20-0x0000000000400000-0x00000000004BE000-memory.dmp	upx
behavioral2/memory/872-25-0x0000000000400000-0x00000000004BE000-memory.dmp	upx
behavioral2/memory/872-27-0x0000000000400000-0x00000000004BE000-memory.dmp	upx
behavioral2/memory/872-29-0x0000000000400000-0x00000000004BE000-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 3 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	c5299b30da386f35f3790d319f0e36b1_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LUCIDCA PUBLIC.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeSecurityPrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeTakeOwnershipPrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeLoadDriverPrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeSystemProfilePrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeSystemtimePrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeProfSingleProcessPrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeIncBasePriorityPrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeCreatePagefilePrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeBackupPrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeRestorePrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeShutdownPrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeDebugPrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeSystemEnvironmentPrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeChangeNotifyPrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeRemoteShutdownPrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeUndockPrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeManageVolumePrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeImpersonatePrivilege	872	LUCIDCA PUBLIC.EXE
Token: SeCreateGlobalPrivilege	872	LUCIDCA PUBLIC.EXE
Token: 33	872	LUCIDCA PUBLIC.EXE
Token: 34	872	LUCIDCA PUBLIC.EXE
Token: 35	872	LUCIDCA PUBLIC.EXE
Token: 36	872	LUCIDCA PUBLIC.EXE

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
872	LUCIDCA PUBLIC.EXE

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 4656 wrote to memory of 872	4656	c5299b30da386f35f3790d319f0e36b1_JaffaCakes118.exe	82
PID 4656 wrote to memory of 872	4656	c5299b30da386f35f3790d319f0e36b1_JaffaCakes118.exe	82
PID 4656 wrote to memory of 872	4656	c5299b30da386f35f3790d319f0e36b1_JaffaCakes118.exe	82
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87
PID 872 wrote to memory of 4620	872	LUCIDCA PUBLIC.EXE	87

C:\Users\Admin\AppData\Local\Temp\c5299b30da386f35f3790d319f0e36b1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c5299b30da386f35f3790d319f0e36b1_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4656
- C:\Users\Admin\AppData\Local\Temp\LUCIDCA PUBLIC.EXE
  "C:\Users\Admin\AppData\Local\Temp\LUCIDCA PUBLIC.EXE"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:872
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4620

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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

C:\Users\Admin\AppData\Local\Temp\LUCIDCA PUBLIC.EXE

Filesize
259KB

MD5
adfaeeebb2ea23e8153fa0c1c2501488

SHA1
78feb2f92b117bf20fdf53eda25874731823c86e

SHA256
bc6df020101650708cb543c906ad5bec5a75d90d952e02faa3f47e1a7cdd630d

SHA512
fa1d7df197ee710bbb4278b4e9ab84cbf5ab58d05dc9d9080a9f984c02220b10d614d238fbb895bdcdb5069d106b4b45fcf3868b1533f59c0d9cc169a434fbe1

Download Submit
memory/872-11-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/872-12-0x00000000022C0000-0x00000000022C1000-memory.dmp

Filesize
4KB

Download
memory/872-14-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/872-15-0x00000000022C0000-0x00000000022C1000-memory.dmp

Filesize
4KB

Download
memory/872-18-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/872-20-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/872-25-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/872-27-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/872-29-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/4620-13-0x0000000000780000-0x0000000000781000-memory.dmp

Filesize
4KB

Download

Analysis

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