asyncrat | b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50

Analysis

max time kernel
149s
max time network
158s
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 18:58

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General

Target

b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
Size

74KB
MD5

2c9392492ace67277a110e40f0395323
SHA1

5369d2c6c1ecfe4c811e1ad57f1a3f82a98b9ef1
SHA256

b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50
SHA512

48dc2e747668571892827b2fc59832c9257d01ea21ec12f40c7132d9c8e6e2805d243371810862f965a59dcecf74968ad10f6f7034324feb9a31dea9ba0b4958
SSDEEP

1536:tUSQcxDQV0CbGPMV+e9VdQuDI6H1bf/F1N0ehQzciLVclN:tUTcxDQigGPMV+e9VdQsH1bf9cehQzBY

Score

10^/10

asyncrat system host driver rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

System Host Driver

127.0.0.1:4449

Mutex

zzhhpipdahlt

Attributes

delay
1
install
true
install_file
System Host Driver.exe
install_folder
%AppData%

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/3304-1-0x0000000000E70000-0x0000000000E88000-memory.dmp	VenomRAT
behavioral2/files/0x00100000000006c1-12.dat	VenomRAT

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x00100000000006c1-12.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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe

Executes dropped EXE 1 IoCs

pid	Process
1428	System Host Driver.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
4060	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
208	schtasks.exe

Suspicious behavior: EnumeratesProcesses 53 IoCs

pid	Process
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe
1428	System Host Driver.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
Token: SeDebugPrivilege	3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
Token: SeDebugPrivilege	1428	System Host Driver.exe
Token: SeDebugPrivilege	1428	System Host Driver.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1428	System Host Driver.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3304 wrote to memory of 4420	3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe	87
PID 3304 wrote to memory of 4420	3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe	87
PID 3304 wrote to memory of 4844	3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe	88
PID 3304 wrote to memory of 4844	3304	b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe	88
PID 4844 wrote to memory of 4060	4844	cmd.exe	92
PID 4844 wrote to memory of 4060	4844	cmd.exe	92
PID 4420 wrote to memory of 208	4420	cmd.exe	93
PID 4420 wrote to memory of 208	4420	cmd.exe	93
PID 4844 wrote to memory of 1428	4844	cmd.exe	98
PID 4844 wrote to memory of 1428	4844	cmd.exe	98

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\b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe
"C:\Users\Admin\AppData\Local\Temp\b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3304
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "System Host Driver" /tr '"C:\Users\Admin\AppData\Roaming\System Host Driver.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4420
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "System Host Driver" /tr '"C:\Users\Admin\AppData\Roaming\System Host Driver.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:208
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpB19D.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4844
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:4060
- - C:\Users\Admin\AppData\Roaming\System Host Driver.exe
    "C:\Users\Admin\AppData\Roaming\System Host Driver.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1428

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\tmpB19D.tmp.bat

Filesize
162B

MD5
61b6fe2f53df0bbc7086caaec83b2796

SHA1
79096c80938dc0e0581f41c9c6d9159af32cfa27

SHA256
422ccfdcbb765bbd07ba098d179aeeea57a0cf02e4b492b64eceddfd1a5525d9

SHA512
579de3df23be7580e53291d9d1d0f49b6a0676a879c8f94c1d8d697a7484cebdc4ce3e4a810b7682ee78302f8cb69f3342a4abf3c4d64826b2b43d2d5a8a4383

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\System Host Driver.exe

Filesize
74KB

MD5
2c9392492ace67277a110e40f0395323

SHA1
5369d2c6c1ecfe4c811e1ad57f1a3f82a98b9ef1

SHA256
b92d04b4607d2a494b0c07b753a0883fb1f9d54c60e917d3a467e676ffcc1f50

SHA512
48dc2e747668571892827b2fc59832c9257d01ea21ec12f40c7132d9c8e6e2805d243371810862f965a59dcecf74968ad10f6f7034324feb9a31dea9ba0b4958

Download Submit
memory/3304-0-0x00007FFC9A043000-0x00007FFC9A045000-memory.dmp

Filesize
8KB

Download
memory/3304-1-0x0000000000E70000-0x0000000000E88000-memory.dmp

Filesize
96KB

Download
memory/3304-3-0x00007FFC9A040000-0x00007FFC9AB01000-memory.dmp

Filesize
10.8MB

Download
memory/3304-6-0x00007FFC9A040000-0x00007FFC9AB01000-memory.dmp

Filesize
10.8MB

Download
memory/3304-9-0x00007FFC9A040000-0x00007FFC9AB01000-memory.dmp

Filesize
10.8MB

Download