asyncrat | 68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58

Analysis

max time kernel
147s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18-08-2024 18:47

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General

Target

68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
Size

74KB
MD5

4181bba13d0b7c9a0cd17ce7ffe631c0
SHA1

5007a3f5674d3dd097378f26ea6305e23075fe45
SHA256

68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58
SHA512

5c9bfcd60f4f09fb26450af24c31a7490b7f192ab43a836a4a3b6df78f8f853ed9c6ba5fa4dfebc047907cded9c27e43bbd9b2adf3cb6f4effe0cb26c0dfb9f4
SSDEEP

1536:cOXUHccx4m3Cmv6PMVue9VdQuDI6H1bf/LOC5UQzcyLVclN:cOXU8cx4qB6PMVue9VdQsH1bfjOC5UQO

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

Mutex

WindowsDefender

Attributes

delay
1
install
true
install_file
Windows Defender Manager.exe
install_folder
%Temp%
pastebin_config
https://pastebin.com/raw/LwwcrLg4

aes.plain

Signatures

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

VenomRAT 2 IoCs

Detects VenomRAT.

rat

resource	yara_rule
behavioral2/memory/4292-1-0x0000000000860000-0x0000000000878000-memory.dmp	VenomRAT
behavioral2/files/0x000300000001692d-12.dat	VenomRAT

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x000300000001692d-12.dat	family_asyncrat

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe

Executes dropped EXE 1 IoCs

pid	Process
2000	Windows Defender Manager.exe

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

Web Service

T1102

flow	ioc
21	pastebin.com
22	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
2940	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
4732	schtasks.exe

Suspicious behavior: EnumeratesProcesses 52 IoCs

pid	Process
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe
2000	Windows Defender Manager.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
Token: SeDebugPrivilege	2000	Windows Defender Manager.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2000	Windows Defender Manager.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4292 wrote to memory of 4456	4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe	89
PID 4292 wrote to memory of 4456	4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe	89
PID 4292 wrote to memory of 2368	4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe	90
PID 4292 wrote to memory of 2368	4292	68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe	90
PID 2368 wrote to memory of 2940	2368	cmd.exe	94
PID 2368 wrote to memory of 2940	2368	cmd.exe	94
PID 4456 wrote to memory of 4732	4456	cmd.exe	95
PID 4456 wrote to memory of 4732	4456	cmd.exe	95
PID 2368 wrote to memory of 2000	2368	cmd.exe	100
PID 2368 wrote to memory of 2000	2368	cmd.exe	100

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\68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe
"C:\Users\Admin\AppData\Local\Temp\68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4292
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Windows Defender Manager" /tr '"C:\Users\Admin\AppData\Local\Temp\Windows Defender Manager.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4456
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Windows Defender Manager" /tr '"C:\Users\Admin\AppData\Local\Temp\Windows Defender Manager.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4732
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7C06.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2368
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2940
- - C:\Users\Admin\AppData\Local\Temp\Windows Defender Manager.exe
    "C:\Users\Admin\AppData\Local\Temp\Windows Defender Manager.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2000

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\Windows Defender Manager.exe

Filesize
74KB

MD5
4181bba13d0b7c9a0cd17ce7ffe631c0

SHA1
5007a3f5674d3dd097378f26ea6305e23075fe45

SHA256
68e0be14769503ea57b742a881cdca9139157cadf918a4c0978466c6f1028d58

SHA512
5c9bfcd60f4f09fb26450af24c31a7490b7f192ab43a836a4a3b6df78f8f853ed9c6ba5fa4dfebc047907cded9c27e43bbd9b2adf3cb6f4effe0cb26c0dfb9f4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7C06.tmp.bat

Filesize
171B

MD5
b0e9dd80db16e25a822e4385c009a62c

SHA1
c0aadd888159771f87703a6d6d2c4fdaed3bf423

SHA256
181c6c8822bce1b07e7e1624fdd700158041bc0a7b231fcc5cb153b755d2d55d

SHA512
188e3dc27784004913af4caed0f424cb42dea6023f5e04fa8f80412f479bd3aaff96f81e46798fe0835e064280fd093098a4193bd91a9306c645d85e973822a0

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

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

Download Submit
memory/4292-0-0x00007FFE4D593000-0x00007FFE4D595000-memory.dmp

Filesize
8KB

Download
memory/4292-1-0x0000000000860000-0x0000000000878000-memory.dmp

Filesize
96KB

Download
memory/4292-3-0x00007FFE4D590000-0x00007FFE4E051000-memory.dmp

Filesize
10.8MB

Download
memory/4292-8-0x00007FFE4D590000-0x00007FFE4E051000-memory.dmp

Filesize
10.8MB

Download
memory/4292-9-0x00007FFE4D590000-0x00007FFE4E051000-memory.dmp

Filesize
10.8MB

Download