asyncrat | 2d3770870c1b3116a047d960707cbf07de97957908ec82ca6e3b6519ca1ede85

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-10-2024 21:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2d3770870c1b3116a047d960707cbf07de97957908ec82ca6e3b6519ca1ede85.exe
Size

74KB
MD5

6245024bd7965b1bb284f757884f12bb
SHA1

00ee4ce63997cf724ba0548f84723b58cdab7d4c
SHA256

2d3770870c1b3116a047d960707cbf07de97957908ec82ca6e3b6519ca1ede85
SHA512

58d6f0e2f32086307112300ae3493ea8d81429c5ced355c0cc3f2d2115db32c2f0cd085cfee5d5ef83d34fc5353348aa6a3b57e468ad8723219ea1198c868935
SSDEEP

1536:pUhgcxnj3CuWPMVjYOUqiWyIJH1b8/VIM72QzcGLVclN:pU+cxnL1WPMVjYOUqL1H1b89f2QfBY

Score

10^/10

asyncrat wifi rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Wifi

Mutex

prfqgcbkhfyyvkp

Attributes

delay
1
install
true
install_file
System32.exe
install_folder
%AppData%
pastebin_config
https://pastebin.com/raw/x5dAqXRm

aes.plain

Signatures

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

VenomRAT 3 IoCs

Detects VenomRAT.

rat

resource	yara_rule
behavioral1/memory/2384-1-0x00000000002B0000-0x00000000002C8000-memory.dmp	VenomRAT
behavioral1/files/0x003500000001659b-16.dat	VenomRAT
behavioral1/memory/2716-18-0x0000000000230000-0x0000000000248000-memory.dmp	VenomRAT

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x003500000001659b-16.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2716	System32.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
4	pastebin.com
5	pastebin.com

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

evasion

pid	Process
2576	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
2848	schtasks.exe

Suspicious behavior: EnumeratesProcesses 51 IoCs

pid	Process
2384	2d3770870c1b3116a047d960707cbf07de97957908ec82ca6e3b6519ca1ede85.exe
2384	2d3770870c1b3116a047d960707cbf07de97957908ec82ca6e3b6519ca1ede85.exe
2384	2d3770870c1b3116a047d960707cbf07de97957908ec82ca6e3b6519ca1ede85.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe
2716	System32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2384	2d3770870c1b3116a047d960707cbf07de97957908ec82ca6e3b6519ca1ede85.exe
Token: SeDebugPrivilege	2384	2d3770870c1b3116a047d960707cbf07de97957908ec82ca6e3b6519ca1ede85.exe
Token: SeDebugPrivilege	2716	System32.exe
Token: SeDebugPrivilege	2716	System32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2716	System32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 2780	2384	2d3770870c1b3116a047d960707cbf07de97957908ec82ca6e3b6519ca1ede85.exe	30
PID 2384 wrote to memory of 2780	2384	2d3770870c1b3116a047d960707cbf07de97957908ec82ca6e3b6519ca1ede85.exe	30
PID 2384 wrote to memory of 2780	2384	2d3770870c1b3116a047d960707cbf07de97957908ec82ca6e3b6519ca1ede85.exe	30
PID 2384 wrote to memory of 2696	2384	2d3770870c1b3116a047d960707cbf07de97957908ec82ca6e3b6519ca1ede85.exe	31
PID 2384 wrote to memory of 2696	2384	2d3770870c1b3116a047d960707cbf07de97957908ec82ca6e3b6519ca1ede85.exe	31
PID 2384 wrote to memory of 2696	2384	2d3770870c1b3116a047d960707cbf07de97957908ec82ca6e3b6519ca1ede85.exe	31
PID 2696 wrote to memory of 2576	2696	cmd.exe	34
PID 2696 wrote to memory of 2576	2696	cmd.exe	34
PID 2696 wrote to memory of 2576	2696	cmd.exe	34
PID 2780 wrote to memory of 2848	2780	cmd.exe	35
PID 2780 wrote to memory of 2848	2780	cmd.exe	35
PID 2780 wrote to memory of 2848	2780	cmd.exe	35
PID 2696 wrote to memory of 2716	2696	cmd.exe	36
PID 2696 wrote to memory of 2716	2696	cmd.exe	36
PID 2696 wrote to memory of 2716	2696	cmd.exe	36

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\2d3770870c1b3116a047d960707cbf07de97957908ec82ca6e3b6519ca1ede85.exe
"C:\Users\Admin\AppData\Local\Temp\2d3770870c1b3116a047d960707cbf07de97957908ec82ca6e3b6519ca1ede85.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "System32" /tr '"C:\Users\Admin\AppData\Roaming\System32.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2780
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "System32" /tr '"C:\Users\Admin\AppData\Roaming\System32.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2848
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpF69E.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2696
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2576
- - C:\Users\Admin\AppData\Roaming\System32.exe
    "C:\Users\Admin\AppData\Roaming\System32.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2716

Network

MITRE ATT&CK Enterprise v15

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpF69E.tmp.bat

Filesize
152B

MD5
814c441d9e64c9db2045eb4db4fda84d

SHA1
01533ceea42f69fe3bd07008e11f50a80caf74bb

SHA256
8f54dcbd10f415c9763a8c44d7b965033eba5f59d0c78e34b40e7cd235fd2fcd

SHA512
f4c9acf1a82dd0b319016b1128be940b513112e7e32286079e4a277791b0394e6885d0067e2095bde3efbc024376deef2f61bfc41035c889d726d2213bdc3100

Download Submit
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

Download Submit
C:\Users\Admin\AppData\Roaming\System32.exe

Filesize
74KB

MD5
6245024bd7965b1bb284f757884f12bb

SHA1
00ee4ce63997cf724ba0548f84723b58cdab7d4c

SHA256
2d3770870c1b3116a047d960707cbf07de97957908ec82ca6e3b6519ca1ede85

SHA512
58d6f0e2f32086307112300ae3493ea8d81429c5ced355c0cc3f2d2115db32c2f0cd085cfee5d5ef83d34fc5353348aa6a3b57e468ad8723219ea1198c868935

Download Submit
memory/2384-0-0x000007FEF5D93000-0x000007FEF5D94000-memory.dmp

Filesize
4KB

Download
memory/2384-1-0x00000000002B0000-0x00000000002C8000-memory.dmp

Filesize
96KB

Download
memory/2384-3-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp

Filesize
9.9MB

Download
memory/2384-11-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp

Filesize
9.9MB

Download
memory/2384-13-0x000007FEF5D90000-0x000007FEF677C000-memory.dmp

Filesize
9.9MB

Download
memory/2716-18-0x0000000000230000-0x0000000000248000-memory.dmp

Filesize
96KB

Download