darkcomet | e1c0b4985deead531b5379b428ed6b52979b304772cad99322e0b8c770229274

General

Target

JaffaCakes118_c22a33bf182739b3333637d8aeefa468.exe
Size

853KB
MD5

c22a33bf182739b3333637d8aeefa468
SHA1

4231b9143d8d7e4888c5b5bcfc8a7f3915a33987
SHA256

e1c0b4985deead531b5379b428ed6b52979b304772cad99322e0b8c770229274
SHA512

f58ec7a7a614d33c3f06252f66abaea1296882f9ab1ed599ca9c9d83fd977173ffb32dd2ad48683ee124412ccf0ce03658be06e00c716cb94d42befae7c747d1
SSDEEP

24576:8pZ4XeLKWl4aotjbpR1BYeIojQXfvqc7Uim7:8pZ4XeLKw4aobNYe32fvqc7Ui

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

94.23.183.133:1604

Mutex

DC_MUTEX-F54S21D

Attributes

gencode
6N*#iN2$4-Kj
install
false
offline_keylogger
true
persistence
false

rc4.plain

Signatures

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
41	4980	Process not Found

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-1-5-21-895555807-3853795127-2958627047-1000\Control Panel\International\Geo\Nation	JaffaCakes118_c22a33bf182739b3333637d8aeefa468.exe

Executes dropped EXE 2 IoCs

pid	Process
3360	Explorer.exe
2536	cvtres.exe

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-1-5-21-895555807-3853795127-2958627047-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Explorer = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Explorer.exe"	Explorer.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3360 set thread context of 2536	3360	Explorer.exe	89

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 4 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	JaffaCakes118_c22a33bf182739b3333637d8aeefa468.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1180	MicrosoftEdgeUpdate.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	3360	Explorer.exe
Token: SeIncreaseQuotaPrivilege	2536	cvtres.exe
Token: SeSecurityPrivilege	2536	cvtres.exe
Token: SeTakeOwnershipPrivilege	2536	cvtres.exe
Token: SeLoadDriverPrivilege	2536	cvtres.exe
Token: SeSystemProfilePrivilege	2536	cvtres.exe
Token: SeSystemtimePrivilege	2536	cvtres.exe
Token: SeProfSingleProcessPrivilege	2536	cvtres.exe
Token: SeIncBasePriorityPrivilege	2536	cvtres.exe
Token: SeCreatePagefilePrivilege	2536	cvtres.exe
Token: SeBackupPrivilege	2536	cvtres.exe
Token: SeRestorePrivilege	2536	cvtres.exe
Token: SeShutdownPrivilege	2536	cvtres.exe
Token: SeDebugPrivilege	2536	cvtres.exe
Token: SeSystemEnvironmentPrivilege	2536	cvtres.exe
Token: SeChangeNotifyPrivilege	2536	cvtres.exe
Token: SeRemoteShutdownPrivilege	2536	cvtres.exe
Token: SeUndockPrivilege	2536	cvtres.exe
Token: SeManageVolumePrivilege	2536	cvtres.exe
Token: SeImpersonatePrivilege	2536	cvtres.exe
Token: SeCreateGlobalPrivilege	2536	cvtres.exe
Token: 33	2536	cvtres.exe
Token: 34	2536	cvtres.exe
Token: 35	2536	cvtres.exe
Token: 36	2536	cvtres.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2536	cvtres.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1320 wrote to memory of 3360	1320	JaffaCakes118_c22a33bf182739b3333637d8aeefa468.exe	87
PID 1320 wrote to memory of 3360	1320	JaffaCakes118_c22a33bf182739b3333637d8aeefa468.exe	87
PID 1320 wrote to memory of 3360	1320	JaffaCakes118_c22a33bf182739b3333637d8aeefa468.exe	87
PID 3360 wrote to memory of 2536	3360	Explorer.exe	89
PID 3360 wrote to memory of 2536	3360	Explorer.exe	89
PID 3360 wrote to memory of 2536	3360	Explorer.exe	89
PID 3360 wrote to memory of 2536	3360	Explorer.exe	89
PID 3360 wrote to memory of 2536	3360	Explorer.exe	89
PID 3360 wrote to memory of 2536	3360	Explorer.exe	89
PID 3360 wrote to memory of 2536	3360	Explorer.exe	89
PID 3360 wrote to memory of 2536	3360	Explorer.exe	89
PID 3360 wrote to memory of 2536	3360	Explorer.exe	89
PID 3360 wrote to memory of 2536	3360	Explorer.exe	89
PID 3360 wrote to memory of 2536	3360	Explorer.exe	89
PID 3360 wrote to memory of 2536	3360	Explorer.exe	89
PID 3360 wrote to memory of 2536	3360	Explorer.exe	89
PID 3360 wrote to memory of 2536	3360	Explorer.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c22a33bf182739b3333637d8aeefa468.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c22a33bf182739b3333637d8aeefa468.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1320
- C:\Users\Admin\AppData\Local\Temp\Explorer.exe
  "C:\Users\Admin\AppData\Local\Temp\Explorer.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3360
- - C:\Users\Admin\AppData\Local\Temp\cvtres.exe
    C:\Users\Admin\AppData\Local\Temp\cvtres.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2536

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB1cGRhdGVyPSJPbWFoYSIgdXBkYXRlcnZlcnNpb249IjEuMy4xOTUuNDMiIHNoZWxsX3ZlcnNpb249IjEuMy4xOTUuNDMiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7NkYyMzkxQTUtQ0NERS00NzgxLUI0M0MtRUU0OTRBRjA4NEVDfSIgdXNlcmlkPSJ7NjEwODEzOTEtODI5Mi00NUIyLUEwNTctOEI2N0I2MEVEODVFfSIgaW5zdGFsbHNvdXJjZT0ibGltaXRlZCIgcmVxdWVzdGlkPSJ7QkYzM0U2NzMtNUMwRC00QkU2LUFFRDgtMEEyMUEyRTU3NTU2fSIgZGVkdXA9ImNyIiBkb21haW5qb2luZWQ9IjAiPjxodyBsb2dpY2FsX2NwdXM9IjIiIHBoeXNtZW1vcnk9IjQiIGRpc2tfdHlwZT0iMiIgc3NlPSIxIiBzc2UyPSIxIiBzc2UzPSIxIiBzc3NlMz0iMSIgc3NlNDE9IjEiIHNzZTQyPSIxIiBhdng9IjEiLz48b3MgcGxhdGZvcm09IndpbiIgdmVyc2lvbj0iMTAuMC4xOTA0MS4xMjg4IiBzcD0iIiBhcmNoPSJ4NjQiIHByb2R1Y3RfdHlwZT0iNDgiIGlzX3dpcD0iMCIgaXNfaW5fbG9ja2Rvd25fbW9kZT0iMCIvPjxvZW0gcHJvZHVjdF9tYW51ZmFjdHVyZXI9IiIgcHJvZHVjdF9uYW1lPSIiLz48ZXhwIGV0YWc9IiZxdW90O0UreGJBejZZNnNVMTI4OWJTNnFsNFZSTGJramZCVUdUTUpzanJIcjQ0aUk9JnF1b3Q7Ii8-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIyIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDY4MzAiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxOTE0Njg3NjAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjYyNDE1OTgxIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:1180

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

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

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
764KB

MD5
7ce1a5dbba4c3cf72b6d0642ddf64569

SHA1
cc3a927caa033b6a06d75e61fa973f9600024eaf

SHA256
88a3d3a36ce5d49a400d6b702caa6cb95ed0b3e4f1d78bd2f465cc01d431707d

SHA512
9f685acce7e18d20f84bb810db84135d1394476511e8359650bde936f1024237c1a474c71d39b5c5db99e61e02feb84c21941973bb808a4cbf9644b1fba2f36c

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

Filesize
34KB

MD5
e118330b4629b12368d91b9df6488be0

SHA1
ce90218c7e3b90df2a3409ec253048bb6472c2fd

SHA256
3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

SHA512
ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

Download Submit
memory/1320-1-0x00000000741A0000-0x0000000074751000-memory.dmp

Filesize
5.7MB

Download
memory/1320-2-0x00000000741A0000-0x0000000074751000-memory.dmp

Filesize
5.7MB

Download
memory/1320-31-0x00000000741A0000-0x0000000074751000-memory.dmp

Filesize
5.7MB

Download
memory/1320-0-0x00000000741A2000-0x00000000741A3000-memory.dmp

Filesize
4KB

Download
memory/2536-24-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2536-32-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2536-27-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2536-26-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2536-22-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2536-47-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2536-17-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2536-35-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2536-29-0x0000000000780000-0x0000000000781000-memory.dmp

Filesize
4KB

Download
memory/2536-20-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2536-28-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/3360-33-0x00000000741A0000-0x0000000074751000-memory.dmp

Filesize
5.7MB

Download
memory/3360-14-0x00000000741A0000-0x0000000074751000-memory.dmp

Filesize
5.7MB

Download
memory/3360-25-0x00000000741A0000-0x0000000074751000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads