asyncrat | 2c67ce29cd8e26ea30b8828efb2d2ae2d135f1141ad80d333807bff1ea970901

Analysis

max time kernel
148s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-12-2024 12:27

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General

Target

noantivm.exe
Size

133KB
MD5

7a1c81423490d165b48799936a80b63b
SHA1

e7240326f9c751326090f9f05d6ef068c93eb34f
SHA256

2c67ce29cd8e26ea30b8828efb2d2ae2d135f1141ad80d333807bff1ea970901
SHA512

f2e37d3a89476904a53f2930a27fb818088b3675fac47003eb44bba004477770251dcaff56973d881fce412ef725e0dcaa798f5027f1fe647e902147cb7a3e60
SSDEEP

1536:ahUzAcxjVLcoCJPPMVEMawke4I8H1boNlLJ1eQzcK9VclN:KUUcxjVLLCPPMVxawkH1bo7LJgQrPY

Score

10^/10

asyncrat venomrat default rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

127.0.0.1:4449

Mutex

jiqbzsjfarhpqni

Attributes

delay
1
install
true
install_file
svchost.exe
install_folder
%Temp%

aes.plain

Signatures

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

VenomRAT 2 IoCs

Detects VenomRAT.

rat

resource	yara_rule
behavioral2/memory/1296-1-0x00000000007E0000-0x0000000000806000-memory.dmp	VenomRAT
behavioral2/files/0x0008000000023c94-11.dat	VenomRAT

Venomrat family
venomrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x0008000000023c94-11.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	noantivm.exe

Executes dropped EXE 1 IoCs

pid	Process
1080	svchost.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

pid	Process
432	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
3036	schtasks.exe

Suspicious behavior: EnumeratesProcesses 53 IoCs

pid	Process
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1296	noantivm.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe
1080	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1296	noantivm.exe
Token: SeDebugPrivilege	1080	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1080	svchost.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1296 wrote to memory of 4992	1296	noantivm.exe	85
PID 1296 wrote to memory of 4992	1296	noantivm.exe	85
PID 1296 wrote to memory of 552	1296	noantivm.exe	86
PID 1296 wrote to memory of 552	1296	noantivm.exe	86
PID 552 wrote to memory of 432	552	cmd.exe	89
PID 552 wrote to memory of 432	552	cmd.exe	89
PID 4992 wrote to memory of 3036	4992	cmd.exe	90
PID 4992 wrote to memory of 3036	4992	cmd.exe	90
PID 552 wrote to memory of 1080	552	cmd.exe	91
PID 552 wrote to memory of 1080	552	cmd.exe	91

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\noantivm.exe
"C:\Users\Admin\AppData\Local\Temp\noantivm.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1296
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Local\Temp\svchost.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4992
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Local\Temp\svchost.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3036
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpB2D5.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:552
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:432
- - C:\Users\Admin\AppData\Local\Temp\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1080

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

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
133KB

MD5
7a1c81423490d165b48799936a80b63b

SHA1
e7240326f9c751326090f9f05d6ef068c93eb34f

SHA256
2c67ce29cd8e26ea30b8828efb2d2ae2d135f1141ad80d333807bff1ea970901

SHA512
f2e37d3a89476904a53f2930a27fb818088b3675fac47003eb44bba004477770251dcaff56973d881fce412ef725e0dcaa798f5027f1fe647e902147cb7a3e60

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB2D5.tmp.bat

Filesize
154B

MD5
ba84b3cd2fd46c9dba79e98c349c2453

SHA1
e631879fdaf29249581f3bf5ebf75cc046d18af3

SHA256
b4c6f3e643674ee1f6d56e1e439230bcc56657f4587283d10e8472a7c3b52a3b

SHA512
65661b87da148d412c89965088dc2710bd99ae4bbca55e3808871ebec46bc7331b598fad36c5f0de75dd6ad217febc6f3be24395a8dabb47588033f9391f4ed1

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

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

Download Submit
memory/1296-0-0x00007FFA9AA63000-0x00007FFA9AA65000-memory.dmp

Filesize
8KB

Download
memory/1296-1-0x00000000007E0000-0x0000000000806000-memory.dmp

Filesize
152KB

Download
memory/1296-3-0x00007FFA9AA60000-0x00007FFA9B521000-memory.dmp

Filesize
10.8MB

Download
memory/1296-8-0x00007FFA9AA60000-0x00007FFA9B521000-memory.dmp

Filesize
10.8MB

Download
memory/1296-9-0x00007FFA9AA60000-0x00007FFA9B521000-memory.dmp

Filesize
10.8MB

Download