asyncrat | f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85

General

Target

f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85.exe
Size

74KB
MD5

5a3a5c11825b10b21ed422f9988b6cbe
SHA1

8e31f8b4b94c0aace78900a0d2a29842f0782f68
SHA256

f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85
SHA512

083fadbf5bc60f9c2b50b3512b304eeebf0a41a6ac3be2ee417e66db0eb66787547bb7cfa3d654630b770e215c9f6009898420192820912809052e50256b1b15
SSDEEP

1536:dXUHccx4m3Cmv6PMV4mdwLFaI8H1b+/dkzQzcYxLVclN:dXU8cx4qB6PMV4mjH1b+CQNxBY

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 3 IoCs

Detects VenomRAT.

rat

Processes:

resource	yara_rule
behavioral1/memory/2144-1-0x0000000001140000-0x0000000001158000-memory.dmp	VenomRAT
C:\Users\Admin\AppData\Local\Temp\Windows Defender Manager.exe	VenomRAT
behavioral1/memory/2756-18-0x00000000001E0000-0x00000000001F8000-memory.dmp	VenomRAT

Async RAT payload 1 IoCs

rat

Processes:

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

Executes dropped EXE 1 IoCs

Processes:

Windows Defender Manager.exe

pid process

2756 Windows Defender Manager.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

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

Processes:

timeout.exe

pid process

2944 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

Processes:

schtasks.exe

pid process

1876 schtasks.exe

pid	process
2756	Windows Defender Manager.exe

flow	ioc
4	pastebin.com
5	pastebin.com

pid	process
2944	timeout.exe

pid	process
1876	schtasks.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

Processes:

f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85.exeWindows Defender Manager.exe

pid	process
2144	f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85.exe
2144	f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85.exe
2144	f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe
2756	Windows Defender Manager.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85.exeWindows Defender Manager.exe

description	pid	process
Token: SeDebugPrivilege	2144	f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85.exe
Token: SeDebugPrivilege	2756	Windows Defender Manager.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Windows Defender Manager.exe

pid process

2756 Windows Defender Manager.exe

pid	process
2756	Windows Defender Manager.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85.execmd.execmd.exe

description	pid	process	target process
PID 2144 wrote to memory of 2544	2144	f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85.exe	cmd.exe
PID 2144 wrote to memory of 2544	2144	f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85.exe	cmd.exe
PID 2144 wrote to memory of 2544	2144	f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85.exe	cmd.exe
PID 2144 wrote to memory of 2940	2144	f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85.exe	cmd.exe
PID 2144 wrote to memory of 2940	2144	f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85.exe	cmd.exe
PID 2144 wrote to memory of 2940	2144	f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85.exe	cmd.exe
PID 2940 wrote to memory of 2944	2940	cmd.exe	timeout.exe
PID 2940 wrote to memory of 2944	2940	cmd.exe	timeout.exe
PID 2940 wrote to memory of 2944	2940	cmd.exe	timeout.exe
PID 2544 wrote to memory of 1876	2544	cmd.exe	schtasks.exe
PID 2544 wrote to memory of 1876	2544	cmd.exe	schtasks.exe
PID 2544 wrote to memory of 1876	2544	cmd.exe	schtasks.exe
PID 2940 wrote to memory of 2756	2940	cmd.exe	Windows Defender Manager.exe
PID 2940 wrote to memory of 2756	2940	cmd.exe	Windows Defender Manager.exe
PID 2940 wrote to memory of 2756	2940	cmd.exe	Windows Defender Manager.exe

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\f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85.exe
"C:\Users\Admin\AppData\Local\Temp\f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2144
- 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:2544
- - 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:1876
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpCD5D.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2940
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2944
- - 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:2756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

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

Filesize
74KB

MD5
5a3a5c11825b10b21ed422f9988b6cbe

SHA1
8e31f8b4b94c0aace78900a0d2a29842f0782f68

SHA256
f6cd78c4a4628d0c9b4d6895d711f049deb9582d2596cf9a22e98400392a2c85

SHA512
083fadbf5bc60f9c2b50b3512b304eeebf0a41a6ac3be2ee417e66db0eb66787547bb7cfa3d654630b770e215c9f6009898420192820912809052e50256b1b15

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpCD5D.tmp.bat

Filesize
171B

MD5
a9c98f0da8bdf0b29672a0669be94f0a

SHA1
d182be5aa7bce231275fa25361cfeee2de46c0c9

SHA256
b2be397ebf305a8f2551752e04b6df49e6b0f82e32d4d5b3cbdd4164faf2f2a4

SHA512
20e11487105848a4f88fe1869512216d4ab68297c3069fc8687d42a8e3e7dbf8cc58602e31cec58ad901bc7f898ab0243708414bfeb1bf8524e33ac9989befbd

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

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

Download Submit
memory/2144-0-0x000007FEF6033000-0x000007FEF6034000-memory.dmp

Filesize
4KB

Download
memory/2144-1-0x0000000001140000-0x0000000001158000-memory.dmp

Filesize
96KB

Download
memory/2144-3-0x000007FEF6030000-0x000007FEF6A1C000-memory.dmp

Filesize
9.9MB

Download
memory/2144-11-0x000007FEF6030000-0x000007FEF6A1C000-memory.dmp

Filesize
9.9MB

Download
memory/2144-13-0x000007FEF6030000-0x000007FEF6A1C000-memory.dmp

Filesize
9.9MB

Download
memory/2756-18-0x00000000001E0000-0x00000000001F8000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads