dcrat | 976a67850c64de6af6be371497bc0fef9ab5071e551c4fdca555a7bea46e5025

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
26/04/2023, 06:56

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General

Target

61d808a05018ab4e9a13e6d2e63c2bce.exe
Size

736KB
MD5

61d808a05018ab4e9a13e6d2e63c2bce
SHA1

b3a88a306df5dde704cb8517f2a68bd9db342e88
SHA256

976a67850c64de6af6be371497bc0fef9ab5071e551c4fdca555a7bea46e5025
SHA512

8aca17e5d47e7bbc5ef675d82d02d3ee015fbe1d1aa5aeade844f46728c9af8f2b04aef69aa85365601aee5035843f93729f1eafe00433ca1e55920208c55612
SSDEEP

12288:wGDhiziVs+7TTaJ7WD9GdYBlEkyVhAsYp7vz/zYEB1C2QzAiWOh:wGtgiC+7TTaMBlCgPYwA2QzAi/h

Score

10^/10

dcrat infostealer rat spyware

Malware Config

Signatures

DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
rat infostealer dcrat

DCRat payload 3 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral1/memory/1208-56-0x0000000000400000-0x0000000000490000-memory.dmp	dcrat
behavioral1/memory/1208-62-0x0000000000400000-0x0000000000490000-memory.dmp	dcrat
behavioral1/memory/1208-63-0x0000000000400000-0x0000000000490000-memory.dmp	dcrat

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1780 set thread context of 1208	1780	61d808a05018ab4e9a13e6d2e63c2bce.exe	27

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
1208	AppLaunch.exe
1208	AppLaunch.exe
1208	AppLaunch.exe
1208	AppLaunch.exe
1208	AppLaunch.exe
1208	AppLaunch.exe
1208	AppLaunch.exe
1208	AppLaunch.exe
1208	AppLaunch.exe
1208	AppLaunch.exe
1208	AppLaunch.exe
1208	AppLaunch.exe
1208	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1208	AppLaunch.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1780 wrote to memory of 1208	1780	61d808a05018ab4e9a13e6d2e63c2bce.exe	27
PID 1780 wrote to memory of 1208	1780	61d808a05018ab4e9a13e6d2e63c2bce.exe	27
PID 1780 wrote to memory of 1208	1780	61d808a05018ab4e9a13e6d2e63c2bce.exe	27
PID 1780 wrote to memory of 1208	1780	61d808a05018ab4e9a13e6d2e63c2bce.exe	27
PID 1780 wrote to memory of 1208	1780	61d808a05018ab4e9a13e6d2e63c2bce.exe	27
PID 1780 wrote to memory of 1208	1780	61d808a05018ab4e9a13e6d2e63c2bce.exe	27
PID 1780 wrote to memory of 1208	1780	61d808a05018ab4e9a13e6d2e63c2bce.exe	27
PID 1780 wrote to memory of 1208	1780	61d808a05018ab4e9a13e6d2e63c2bce.exe	27
PID 1780 wrote to memory of 1208	1780	61d808a05018ab4e9a13e6d2e63c2bce.exe	27

C:\Users\Admin\AppData\Local\Temp\61d808a05018ab4e9a13e6d2e63c2bce.exe
"C:\Users\Admin\AppData\Local\Temp\61d808a05018ab4e9a13e6d2e63c2bce.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\AppLaunch.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1208

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1208-55-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1208-56-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1208-60-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/1208-62-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1208-63-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1208-64-0x00000000003F0000-0x00000000003F8000-memory.dmp

Filesize
32KB

Download
memory/1208-65-0x0000000000490000-0x00000000004A6000-memory.dmp

Filesize
88KB

Download
memory/1208-66-0x0000000000510000-0x0000000000520000-memory.dmp

Filesize
64KB

Download
memory/1208-67-0x00000000047C0000-0x0000000004800000-memory.dmp

Filesize
256KB

Download
memory/1208-68-0x00000000047C0000-0x0000000004800000-memory.dmp

Filesize
256KB

Download