dcrat | 5d61d2fe577e2a1feac949e6ee980fc9589e4b9472bc4ae249e5d50371ce0e9a

General

Target

36debef0fda01710af9b0e7b6d990a37.bin.exe
Size

1.1MB
MD5

36debef0fda01710af9b0e7b6d990a37
SHA1

b74d79014b30d14abbfbc7adac9a9c2a484f51b9
SHA256

5d61d2fe577e2a1feac949e6ee980fc9589e4b9472bc4ae249e5d50371ce0e9a
SHA512

a4fdeb9658b23abf6544344131d2504a72512773f9b041a1c83cee137bb248bf5ab28e11b07d21302fa54660e2eff8fb97f8c3b00d4c7cdee237c237f91befa4
SSDEEP

12288:7EOA56TrfgrfGA3hM6iM8QSArLmMcKDJW0lt6/9y4dne+qR/:o5IErf1hTP8ALrDc0lQ/9y4dne

Score

10^/10

dcrat pandastealer infostealer rat stealer

Malware Config

Signatures

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

Panda Stealer payload 4 IoCs

resource	yara_rule
behavioral2/memory/4872-177-0x0000000000400000-0x00000000004A3000-memory.dmp	family_pandastealer
behavioral2/memory/4872-178-0x0000000000400000-0x00000000004A3000-memory.dmp	family_pandastealer
behavioral2/memory/4872-175-0x0000000000400000-0x00000000004A3000-memory.dmp	family_pandastealer
behavioral2/memory/4872-182-0x0000000000400000-0x00000000004A3000-memory.dmp	family_pandastealer

PandaStealer
Panda Stealer is a fork of CollectorProject Stealer written in C++.
stealer pandastealer

DCRat payload 4 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral2/files/0x0006000000023171-166.dat	dcrat
behavioral2/files/0x0006000000023171-171.dat	dcrat
behavioral2/files/0x0006000000023171-172.dat	dcrat
behavioral2/memory/3548-174-0x0000000000540000-0x0000000000652000-memory.dmp	dcrat

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-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	36debef0fda01710af9b0e7b6d990a37.bin.exe

Executes dropped EXE 1 IoCs

pid	Process
3548	Xxcmfezhjmaxhvcomintoperf.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
78	ipinfo.io
77	ipinfo.io

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2072 set thread context of 4872	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	98

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
848	powershell.exe
848	powershell.exe
2072	36debef0fda01710af9b0e7b6d990a37.bin.exe
2072	36debef0fda01710af9b0e7b6d990a37.bin.exe
3548	Xxcmfezhjmaxhvcomintoperf.exe
3548	Xxcmfezhjmaxhvcomintoperf.exe
3548	Xxcmfezhjmaxhvcomintoperf.exe
3548	Xxcmfezhjmaxhvcomintoperf.exe
3548	Xxcmfezhjmaxhvcomintoperf.exe
3548	Xxcmfezhjmaxhvcomintoperf.exe
3548	Xxcmfezhjmaxhvcomintoperf.exe
3548	Xxcmfezhjmaxhvcomintoperf.exe
3548	Xxcmfezhjmaxhvcomintoperf.exe
3548	Xxcmfezhjmaxhvcomintoperf.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3548	Xxcmfezhjmaxhvcomintoperf.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe
Token: SeDebugPrivilege	848	powershell.exe
Token: SeDebugPrivilege	3548	Xxcmfezhjmaxhvcomintoperf.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3548	Xxcmfezhjmaxhvcomintoperf.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 848	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	90
PID 2072 wrote to memory of 848	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	90
PID 2072 wrote to memory of 848	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	90
PID 2072 wrote to memory of 3548	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	96
PID 2072 wrote to memory of 3548	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	96
PID 2072 wrote to memory of 4796	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	97
PID 2072 wrote to memory of 4796	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	97
PID 2072 wrote to memory of 4796	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	97
PID 2072 wrote to memory of 4872	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	98
PID 2072 wrote to memory of 4872	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	98
PID 2072 wrote to memory of 4872	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	98
PID 2072 wrote to memory of 4872	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	98
PID 2072 wrote to memory of 4872	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	98
PID 2072 wrote to memory of 4872	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	98
PID 2072 wrote to memory of 4872	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	98
PID 2072 wrote to memory of 4872	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	98
PID 2072 wrote to memory of 4872	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	98
PID 2072 wrote to memory of 4872	2072	36debef0fda01710af9b0e7b6d990a37.bin.exe	98

C:\Users\Admin\AppData\Local\Temp\36debef0fda01710af9b0e7b6d990a37.bin.exe
"C:\Users\Admin\AppData\Local\Temp\36debef0fda01710af9b0e7b6d990a37.bin.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2072
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:848
- C:\Users\Admin\AppData\Local\Temp\Xxcmfezhjmaxhvcomintoperf.exe
  "C:\Users\Admin\AppData\Local\Temp\Xxcmfezhjmaxhvcomintoperf.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3548
- C:\Users\Admin\AppData\Local\Temp\36debef0fda01710af9b0e7b6d990a37.bin.exe
  C:\Users\Admin\AppData\Local\Temp\36debef0fda01710af9b0e7b6d990a37.bin.exe
  2⤵
  PID:4796
- C:\Users\Admin\AppData\Local\Temp\36debef0fda01710af9b0e7b6d990a37.bin.exe
  C:\Users\Admin\AppData\Local\Temp\36debef0fda01710af9b0e7b6d990a37.bin.exe
  2⤵
  PID:4872

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
1.0MB

MD5
3a1aa0d3d3fad3ba324feda977846412

SHA1
b1423f52ef9060e5c3d77394224f65af757f2f17

SHA256
7606edcf0491794b631f9aaf1a7e34fd0960e542d30614b562c8423afc86e2c1

SHA512
c9f6d5d9d53fa590c3499c4eeb73bdb2081c9dffdb9aa587672861e5af7b84ae80ff326bc0b738656117d762c1204e256538f4c8703451912d32b88bd171d68f

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

Filesize
1.0MB

MD5
3a1aa0d3d3fad3ba324feda977846412

SHA1
b1423f52ef9060e5c3d77394224f65af757f2f17

SHA256
7606edcf0491794b631f9aaf1a7e34fd0960e542d30614b562c8423afc86e2c1

SHA512
c9f6d5d9d53fa590c3499c4eeb73bdb2081c9dffdb9aa587672861e5af7b84ae80ff326bc0b738656117d762c1204e256538f4c8703451912d32b88bd171d68f

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

Filesize
1.0MB

MD5
3a1aa0d3d3fad3ba324feda977846412

SHA1
b1423f52ef9060e5c3d77394224f65af757f2f17

SHA256
7606edcf0491794b631f9aaf1a7e34fd0960e542d30614b562c8423afc86e2c1

SHA512
c9f6d5d9d53fa590c3499c4eeb73bdb2081c9dffdb9aa587672861e5af7b84ae80ff326bc0b738656117d762c1204e256538f4c8703451912d32b88bd171d68f

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1dzcyejm.ufk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/848-137-0x0000000005410000-0x0000000005A38000-memory.dmp

Filesize
6.2MB

Download
memory/848-138-0x0000000004DD0000-0x0000000004DE0000-memory.dmp

Filesize
64KB

Download
memory/848-139-0x0000000004DD0000-0x0000000004DE0000-memory.dmp

Filesize
64KB

Download
memory/848-140-0x0000000005B10000-0x0000000005B76000-memory.dmp

Filesize
408KB

Download
memory/848-158-0x0000000004DD0000-0x0000000004DE0000-memory.dmp

Filesize
64KB

Download
memory/848-141-0x0000000005CB0000-0x0000000005D16000-memory.dmp

Filesize
408KB

Download
memory/848-151-0x0000000006300000-0x000000000631E000-memory.dmp

Filesize
120KB

Download
memory/848-152-0x0000000004DD0000-0x0000000004DE0000-memory.dmp

Filesize
64KB

Download
memory/848-153-0x0000000007940000-0x0000000007FBA000-memory.dmp

Filesize
6.5MB

Download
memory/848-154-0x00000000067C0000-0x00000000067DA000-memory.dmp

Filesize
104KB

Download
memory/848-136-0x0000000004CF0000-0x0000000004D26000-memory.dmp

Filesize
216KB

Download
memory/848-156-0x0000000004DD0000-0x0000000004DE0000-memory.dmp

Filesize
64KB

Download
memory/848-157-0x0000000004DD0000-0x0000000004DE0000-memory.dmp

Filesize
64KB

Download
memory/2072-155-0x0000000004BD0000-0x0000000004BE0000-memory.dmp

Filesize
64KB

Download
memory/2072-133-0x0000000000060000-0x000000000017E000-memory.dmp

Filesize
1.1MB

Download
memory/2072-135-0x00000000076A0000-0x00000000076C2000-memory.dmp

Filesize
136KB

Download
memory/2072-134-0x0000000004BD0000-0x0000000004BE0000-memory.dmp

Filesize
64KB

Download
memory/3548-181-0x000000001B290000-0x000000001B2A0000-memory.dmp

Filesize
64KB

Download
memory/3548-179-0x0000000002880000-0x00000000028D0000-memory.dmp

Filesize
320KB

Download
memory/3548-180-0x000000001C130000-0x000000001C658000-memory.dmp

Filesize
5.2MB

Download
memory/3548-174-0x0000000000540000-0x0000000000652000-memory.dmp

Filesize
1.1MB

Download
memory/3548-183-0x000000001CE30000-0x000000001CFF2000-memory.dmp

Filesize
1.8MB

Download
memory/3548-184-0x000000001B290000-0x000000001B2A0000-memory.dmp

Filesize
64KB

Download
memory/4872-177-0x0000000000400000-0x00000000004A3000-memory.dmp

Filesize
652KB

Download
memory/4872-178-0x0000000000400000-0x00000000004A3000-memory.dmp

Filesize
652KB

Download
memory/4872-175-0x0000000000400000-0x00000000004A3000-memory.dmp

Filesize
652KB

Download
memory/4872-182-0x0000000000400000-0x00000000004A3000-memory.dmp

Filesize
652KB

Download

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