darkcomet | 1feaf5b5f3f475bf4cf68e25ae97113285dd26e425567be27f6ee0a8a4c78fa7

General

Target

JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe
Size

1.4MB
MD5

c087ab223cc3224196e5b5a6fb37172a
SHA1

399a0f9f34dec32237f9aeb2e466321c1b837809
SHA256

1feaf5b5f3f475bf4cf68e25ae97113285dd26e425567be27f6ee0a8a4c78fa7
SHA512

bd7c0867f20b61f3da9a95c82a3a1f78b9babf44427a117670bf72b74498a4f2765129a210db2b053954de6c41bf7a1e39c9fb0ce0b54ebc539fff98aaa736c5
SSDEEP

24576:O2cFE1Bi8cIhuTtRLona+KWN3bvfI90GpLLLN:sEK8fKgnTG9LLN

Score

10^/10

darkcomet chromecrypter discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

ChromeCrypter

C2

dargstar.no-ip.biz:1337

Mutex

DC_MUTEX-NJH7D26

Attributes

gencode
d9iWp3$Ypntd
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

Executes dropped EXE 2 IoCs

pid	Process
5500	vbc.exe
4148	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

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-1-5-21-2211465213-323295031-1970282057-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinUpdtr = "C:\\Users\\Admin\\AppData\\Roaming\\WinUpdtr\\JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe"	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5948 set thread context of 5500	5948	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	82

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_c087ab223cc3224196e5b5a6fb37172a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dw20.exe

Checks processor information in registry 2 TTPs 7 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\Platform Specific Field 1	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious use of AdjustPrivilegeToken 28 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	5500	vbc.exe
Token: SeSecurityPrivilege	5500	vbc.exe
Token: SeTakeOwnershipPrivilege	5500	vbc.exe
Token: SeLoadDriverPrivilege	5500	vbc.exe
Token: SeSystemProfilePrivilege	5500	vbc.exe
Token: SeSystemtimePrivilege	5500	vbc.exe
Token: SeProfSingleProcessPrivilege	5500	vbc.exe
Token: SeIncBasePriorityPrivilege	5500	vbc.exe
Token: SeCreatePagefilePrivilege	5500	vbc.exe
Token: SeBackupPrivilege	5500	vbc.exe
Token: SeRestorePrivilege	5500	vbc.exe
Token: SeShutdownPrivilege	5500	vbc.exe
Token: SeDebugPrivilege	5500	vbc.exe
Token: SeSystemEnvironmentPrivilege	5500	vbc.exe
Token: SeChangeNotifyPrivilege	5500	vbc.exe
Token: SeRemoteShutdownPrivilege	5500	vbc.exe
Token: SeUndockPrivilege	5500	vbc.exe
Token: SeManageVolumePrivilege	5500	vbc.exe
Token: SeImpersonatePrivilege	5500	vbc.exe
Token: SeCreateGlobalPrivilege	5500	vbc.exe
Token: 33	5500	vbc.exe
Token: 34	5500	vbc.exe
Token: 35	5500	vbc.exe
Token: 36	5500	vbc.exe
Token: SeRestorePrivilege	5628	dw20.exe
Token: SeBackupPrivilege	5628	dw20.exe
Token: SeBackupPrivilege	5628	dw20.exe
Token: SeBackupPrivilege	5628	dw20.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5500	vbc.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 5948 wrote to memory of 5500	5948	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	82
PID 5948 wrote to memory of 5500	5948	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	82
PID 5948 wrote to memory of 5500	5948	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	82
PID 5948 wrote to memory of 5500	5948	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	82
PID 5948 wrote to memory of 5500	5948	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	82
PID 5948 wrote to memory of 5500	5948	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	82
PID 5948 wrote to memory of 5500	5948	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	82
PID 5948 wrote to memory of 5500	5948	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	82
PID 5948 wrote to memory of 5500	5948	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	82
PID 5948 wrote to memory of 5500	5948	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	82
PID 5948 wrote to memory of 5500	5948	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	82
PID 5948 wrote to memory of 5500	5948	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	82
PID 5948 wrote to memory of 5500	5948	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	82
PID 5948 wrote to memory of 5500	5948	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	82
PID 2532 wrote to memory of 4148	2532	cmd.exe	83
PID 2532 wrote to memory of 4148	2532	cmd.exe	83
PID 2532 wrote to memory of 4148	2532	cmd.exe	83
PID 4148 wrote to memory of 5628	4148	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	84
PID 4148 wrote to memory of 5628	4148	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	84
PID 4148 wrote to memory of 5628	4148	JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5948
- C:\Users\Admin\AppData\Local\Temp\vbc.exe
  C:\Users\Admin\AppData\Local\Temp\vbc.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:5500

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\WinUpdtr\JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:2532
- C:\Users\Admin\AppData\Roaming\WinUpdtr\JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe
  C:\Users\Admin\AppData\Roaming\WinUpdtr\JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4148
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 908
    3⤵
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:5628

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

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

2

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe.log

Filesize
116B

MD5
fbcc48ddf361df41da6b0400718841f8

SHA1
b6d3641dc3c8186662f3906a350e355f47e373e3

SHA256
ecb300191d0e3420d114338ed6850afa649b270f75c181ffe86b435420100870

SHA512
1d9d8e3335423152e7b19bc3b0ac8f04d318c342cfeb1567b9b82f0dde0e3d3f57c3fb7c312fbca7d9f46ba2383f32a2abc90df9a924f27da43f854bd490e578

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

Filesize
1.1MB

MD5
c67110872ae3b9a230031b6c353fd9d5

SHA1
93c13b8b2cd60d5ac1afade2d73691328d25166d

SHA256
d964bc9f883fa390acd51b8d8a6104c4fe4ba3e3630d4ff1a4a59ffd52b15f2e

SHA512
3e2960d91d0c97cbbea76a41fdb5eb6487a5c45779ad44a2a39c5e5c9415f3aeacf9c98462f1db555f0e315cf2fc6b426a0b18b3f639068985f44f208f8c5072

Download Submit
C:\Users\Admin\AppData\Roaming\WinUpdtr\JaffaCakes118_c087ab223cc3224196e5b5a6fb37172a.exe

Filesize
1.4MB

MD5
c087ab223cc3224196e5b5a6fb37172a

SHA1
399a0f9f34dec32237f9aeb2e466321c1b837809

SHA256
1feaf5b5f3f475bf4cf68e25ae97113285dd26e425567be27f6ee0a8a4c78fa7

SHA512
bd7c0867f20b61f3da9a95c82a3a1f78b9babf44427a117670bf72b74498a4f2765129a210db2b053954de6c41bf7a1e39c9fb0ce0b54ebc539fff98aaa736c5

Download Submit
memory/4148-24-0x0000000074511000-0x0000000074512000-memory.dmp

Filesize
4KB

Download
memory/4148-33-0x0000000074510000-0x0000000074AC1000-memory.dmp

Filesize
5.7MB

Download
memory/4148-26-0x0000000074510000-0x0000000074AC1000-memory.dmp

Filesize
5.7MB

Download
memory/4148-25-0x0000000074510000-0x0000000074AC1000-memory.dmp

Filesize
5.7MB

Download
memory/5500-18-0x00000000023A0000-0x00000000023A1000-memory.dmp

Filesize
4KB

Download
memory/5500-35-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-17-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-16-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-12-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-47-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-15-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-14-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-10-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-7-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-46-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-45-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-34-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-44-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-36-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-37-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-38-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-39-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-40-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-41-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-42-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5500-43-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/5948-0-0x0000000074511000-0x0000000074512000-memory.dmp

Filesize
4KB

Download
memory/5948-1-0x0000000074510000-0x0000000074AC1000-memory.dmp

Filesize
5.7MB

Download
memory/5948-2-0x0000000074510000-0x0000000074AC1000-memory.dmp

Filesize
5.7MB

Download
memory/5948-21-0x0000000074510000-0x0000000074AC1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads