asyncrat | dbbc3b014153cb0742cc5386136f347b3ad61eb539524d8e925a8a28a23cc73d

Analysis

max time kernel
2s
max time network
104s
platform
windows11-21h2_x64
resource
win11-20250410-en
resource tags

arch:x64arch:x86image:win11-20250410-enlocale:en-usos:windows11-21h2-x64system
submitted
20/04/2025, 10:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

NursulanCrack.exe
Size

63KB
MD5

45a29490589e6635ab2734cf38e47c62
SHA1

69aa8013c4ed1616442077aa4995f4cb1f209cee
SHA256

dbbc3b014153cb0742cc5386136f347b3ad61eb539524d8e925a8a28a23cc73d
SHA512

e67d536411faf00e9f62ac6a39991902641bba38e54c6c2581251300545b52177ac35647a1d2e4f502a9864d722ba21ca5b14184a6abf518256397d9570354bd
SSDEEP

768:O1fwJdXHF378LAC8A+XPfXssq8nXhllT9SzGo1+T4/SBGHmDbDFpP0oXNMJSuxkP:kUFBXn9TUzRcYUb3P9mguxkpqKmY7

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

127.0.0.1:3232

Attributes

delay
2
install
true
install_file
Nursulan cRack.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x001a00000002b15e-12.dat	family_asyncrat

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4884	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4912	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
488	NursulanCrack.exe
488	NursulanCrack.exe
488	NursulanCrack.exe
488	NursulanCrack.exe
488	NursulanCrack.exe
488	NursulanCrack.exe
488	NursulanCrack.exe
488	NursulanCrack.exe
488	NursulanCrack.exe
488	NursulanCrack.exe
488	NursulanCrack.exe
488	NursulanCrack.exe
488	NursulanCrack.exe
488	NursulanCrack.exe
488	NursulanCrack.exe
488	NursulanCrack.exe
488	NursulanCrack.exe
488	NursulanCrack.exe
488	NursulanCrack.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	488	NursulanCrack.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 488 wrote to memory of 4376	488	NursulanCrack.exe	80
PID 488 wrote to memory of 4376	488	NursulanCrack.exe	80

C:\Users\Admin\AppData\Local\Temp\NursulanCrack.exe
"C:\Users\Admin\AppData\Local\Temp\NursulanCrack.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:488
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Nursulan cRack" /tr '"C:\Users\Admin\AppData\Roaming\Nursulan cRack.exe"' & exit
  2⤵
  PID:4376
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Nursulan cRack" /tr '"C:\Users\Admin\AppData\Roaming\Nursulan cRack.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4912
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp42A6.tmp.bat""
  2⤵
  PID:4444
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:4884
- - C:\Users\Admin\AppData\Roaming\Nursulan cRack.exe
    "C:\Users\Admin\AppData\Roaming\Nursulan cRack.exe"
    3⤵
    PID:4940

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp42A6.tmp.bat

Filesize
158B

MD5
fbbaf0b33e23cc56dd28142a139438f0

SHA1
0a61c758df6bd05466e9d63ba76043bea8d0fed2

SHA256
7f1e95f29c0f8c5edb65a45478dc9615f4f73871c5c8ff943299913ccd3a48e3

SHA512
909029054d995413918ec90eb7f2e0e3ee3731641ac9e96ba39467b1474267e68e2fafa5db2dc73b1e0096a5ce5e13c67efaf8cdf8eb91342460030ff79aff8f

Download Submit
C:\Users\Admin\AppData\Roaming\Nursulan cRack.exe

Filesize
63KB

MD5
45a29490589e6635ab2734cf38e47c62

SHA1
69aa8013c4ed1616442077aa4995f4cb1f209cee

SHA256
dbbc3b014153cb0742cc5386136f347b3ad61eb539524d8e925a8a28a23cc73d

SHA512
e67d536411faf00e9f62ac6a39991902641bba38e54c6c2581251300545b52177ac35647a1d2e4f502a9864d722ba21ca5b14184a6abf518256397d9570354bd

Download Submit
memory/488-1-0x0000000000AB0000-0x0000000000AC6000-memory.dmp

Filesize
88KB

Download
memory/488-0-0x00007FF9B65B3000-0x00007FF9B65B5000-memory.dmp

Filesize
8KB

Download
memory/488-2-0x00007FF9B65B0000-0x00007FF9B7072000-memory.dmp

Filesize
10.8MB

Download
memory/488-9-0x00007FF9B65B0000-0x00007FF9B7072000-memory.dmp

Filesize
10.8MB

Download
memory/488-3-0x00007FF9B65B0000-0x00007FF9B7072000-memory.dmp

Filesize
10.8MB

Download