asyncrat | 1b4f916a30466f815f0db44da716060281a124e82c1cb5aa83d000738f482796

General

Target

Test.exe
Size

74KB
MD5

bd497a7b0fbbae4479865fb7db73ff3e
SHA1

d44545927097c11b430f9c1ed9a6d10c3e5c7b86
SHA256

1b4f916a30466f815f0db44da716060281a124e82c1cb5aa83d000738f482796
SHA512

67264b5e11afbe18b2b84accdfa9fb0e76fd85c62399ad29d97f844676e52c6d9e1f83dc3cb47e3147cf14e4794f3b682ce61639af79b23e8c920833b602bdb0
SSDEEP

1536:WUCccx0dxCKg6PMVP4SfSzyIrH1bC/iTQzcyLVclN:WUTcx0f9g6PMVP4SSH1bCMQjBY

Score

10^/10

asyncrat venomrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

127.0.0.1:15383

Mutex

hlvrakbhxgipspjpl

Attributes

delay
1
install
true
install_file
eeeehhhhh.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

VenomRAT 3 IoCs

Detects VenomRAT.

rat

Processes:

resource	yara_rule
behavioral1/memory/2916-1-0x0000000000270000-0x0000000000288000-memory.dmp	VenomRAT
behavioral1/files/0x0008000000018710-17.dat	VenomRAT
behavioral1/memory/2932-18-0x00000000003E0000-0x00000000003F8000-memory.dmp	VenomRAT

Venomrat family
venomrat

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral1/files/0x0008000000018710-17.dat	family_asyncrat

Executes dropped EXE 1 IoCs

Processes:

eeeehhhhh.exe

pid	Process
2932	eeeehhhhh.exe

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
2860	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
2828	schtasks.exe

Suspicious behavior: EnumeratesProcesses 40 IoCs

Processes:

Test.exeeeeehhhhh.exe

pid	Process
2916	Test.exe
2916	Test.exe
2916	Test.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe
2932	eeeehhhhh.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Test.exeeeeehhhhh.exe

description	pid	Process
Token: SeDebugPrivilege	2916	Test.exe
Token: SeDebugPrivilege	2932	eeeehhhhh.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

eeeehhhhh.exe

pid	Process
2932	eeeehhhhh.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Test.execmd.execmd.exe

description	pid	Process	procid_target
PID 2916 wrote to memory of 2424	2916	Test.exe	30
PID 2916 wrote to memory of 2424	2916	Test.exe	30
PID 2916 wrote to memory of 2424	2916	Test.exe	30
PID 2916 wrote to memory of 3068	2916	Test.exe	32
PID 2916 wrote to memory of 3068	2916	Test.exe	32
PID 2916 wrote to memory of 3068	2916	Test.exe	32
PID 2424 wrote to memory of 2828	2424	cmd.exe	34
PID 2424 wrote to memory of 2828	2424	cmd.exe	34
PID 2424 wrote to memory of 2828	2424	cmd.exe	34
PID 3068 wrote to memory of 2860	3068	cmd.exe	35
PID 3068 wrote to memory of 2860	3068	cmd.exe	35
PID 3068 wrote to memory of 2860	3068	cmd.exe	35
PID 3068 wrote to memory of 2932	3068	cmd.exe	36
PID 3068 wrote to memory of 2932	3068	cmd.exe	36
PID 3068 wrote to memory of 2932	3068	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\Test.exe
"C:\Users\Admin\AppData\Local\Temp\Test.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "eeeehhhhh" /tr '"C:\Users\Admin\AppData\Roaming\eeeehhhhh.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2424
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "eeeehhhhh" /tr '"C:\Users\Admin\AppData\Roaming\eeeehhhhh.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2828
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpBA3B.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3068
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2860
- - C:\Users\Admin\AppData\Roaming\eeeehhhhh.exe
    "C:\Users\Admin\AppData\Roaming\eeeehhhhh.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2932

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

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpBA3B.tmp.bat

Filesize
153B

MD5
2143234b66dc2a438dc1480a7813271f

SHA1
6afea1914cee4eda9bc2103277e813063144ee62

SHA256
aca95df800576e9a280497373450c33f3fcbdcbf7f60994f2164a0021c56ee78

SHA512
edc33660f4d5bd877a50fada339bd8636ce52ee404a767a30ec139a153868d5d30d7f4b2ec9275ec86351449dc920c52453854b3e684ff2589ebb547d6ebf0bc

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\eeeehhhhh.exe

Filesize
74KB

MD5
bd497a7b0fbbae4479865fb7db73ff3e

SHA1
d44545927097c11b430f9c1ed9a6d10c3e5c7b86

SHA256
1b4f916a30466f815f0db44da716060281a124e82c1cb5aa83d000738f482796

SHA512
67264b5e11afbe18b2b84accdfa9fb0e76fd85c62399ad29d97f844676e52c6d9e1f83dc3cb47e3147cf14e4794f3b682ce61639af79b23e8c920833b602bdb0

Download Submit
memory/2916-0-0x000007FEF67C3000-0x000007FEF67C4000-memory.dmp

Filesize
4KB

Download
memory/2916-1-0x0000000000270000-0x0000000000288000-memory.dmp

Filesize
96KB

Download
memory/2916-3-0x000007FEF67C0000-0x000007FEF71AC000-memory.dmp

Filesize
9.9MB

Download
memory/2916-12-0x000007FEF67C0000-0x000007FEF71AC000-memory.dmp

Filesize
9.9MB

Download
memory/2916-14-0x000007FEF67C0000-0x000007FEF71AC000-memory.dmp

Filesize
9.9MB

Download
memory/2932-18-0x00000000003E0000-0x00000000003F8000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads