asyncrat | be964bd01ae7ce65229159b675bf64c3e5fe02ad2034b7d9904b905fd51903ac

Analysis

max time kernel
120s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
28-07-2024 00:05

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General

Target

1e6725d654ad07c4b624189f4ad3f940N.exe
Size

63KB
MD5

1e6725d654ad07c4b624189f4ad3f940
SHA1

729dcee88e1c74c2fa4508ff5d97774daf555b30
SHA256

be964bd01ae7ce65229159b675bf64c3e5fe02ad2034b7d9904b905fd51903ac
SHA512

8fad99354fee9e201a847bd96a175561f12a1792c873afaa464991caea6591ecae24abb93349d1369f4bea60b389016d3ce4a8014b58caf8e330da9f71d54d35
SSDEEP

768:ijSu/n3jzh78J4C8A+XTSazcBRL5JTk1+T4KSBGHmDbD/ph0oXIT/gdMcSugdpqM:UrzV4dSJYUbdh9OmiugdpqKmY7

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

complete-veterans.gl.at.ply.gg:6374

complete-veterans.gl.at.ply.gg:32986

Attributes

delay
1
install
true
install_file
nvidiaapp.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x0002000000022ab8-11.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-1-5-21-1750093773-264148664-1320403265-1000\Control Panel\International\Geo\Nation	1e6725d654ad07c4b624189f4ad3f940N.exe

Executes dropped EXE 1 IoCs

pid	Process
2656	nvidiaapp.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
1980	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
3944	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
1540	1e6725d654ad07c4b624189f4ad3f940N.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe
2656	nvidiaapp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1540	1e6725d654ad07c4b624189f4ad3f940N.exe
Token: SeDebugPrivilege	2656	nvidiaapp.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1540 wrote to memory of 2508	1540	1e6725d654ad07c4b624189f4ad3f940N.exe	88
PID 1540 wrote to memory of 2508	1540	1e6725d654ad07c4b624189f4ad3f940N.exe	88
PID 1540 wrote to memory of 3212	1540	1e6725d654ad07c4b624189f4ad3f940N.exe	90
PID 1540 wrote to memory of 3212	1540	1e6725d654ad07c4b624189f4ad3f940N.exe	90
PID 2508 wrote to memory of 3944	2508	cmd.exe	92
PID 2508 wrote to memory of 3944	2508	cmd.exe	92
PID 3212 wrote to memory of 1980	3212	cmd.exe	93
PID 3212 wrote to memory of 1980	3212	cmd.exe	93
PID 3212 wrote to memory of 2656	3212	cmd.exe	94
PID 3212 wrote to memory of 2656	3212	cmd.exe	94

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\1e6725d654ad07c4b624189f4ad3f940N.exe
"C:\Users\Admin\AppData\Local\Temp\1e6725d654ad07c4b624189f4ad3f940N.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1540
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "nvidiaapp" /tr '"C:\Users\Admin\AppData\Roaming\nvidiaapp.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2508
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "nvidiaapp" /tr '"C:\Users\Admin\AppData\Roaming\nvidiaapp.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3944
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpDD7F.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3212
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1980
- - C:\Users\Admin\AppData\Roaming\nvidiaapp.exe
    "C:\Users\Admin\AppData\Roaming\nvidiaapp.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2656

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\tmpDD7F.tmp.bat

Filesize
153B

MD5
36a2891a0e1ea28533917771a25a066d

SHA1
a40b2db34eb15db02aa6497cb4bea180415c9fb6

SHA256
a2bfa4cd105f70e1c97b6ed9c1bdf797297660bd128fa5c23b8300b69d1c7f41

SHA512
d290d59cb8397e7a60391d924b89486bb94915969eb8e8b3566c5308942871804cc72699cfd868f646db54e751cdef48a20f6353eb634874a14404938f31c82d

Download Submit
C:\Users\Admin\AppData\Roaming\nvidiaapp.exe

Filesize
63KB

MD5
1e6725d654ad07c4b624189f4ad3f940

SHA1
729dcee88e1c74c2fa4508ff5d97774daf555b30

SHA256
be964bd01ae7ce65229159b675bf64c3e5fe02ad2034b7d9904b905fd51903ac

SHA512
8fad99354fee9e201a847bd96a175561f12a1792c873afaa464991caea6591ecae24abb93349d1369f4bea60b389016d3ce4a8014b58caf8e330da9f71d54d35

Download Submit
memory/1540-0-0x0000000000E20000-0x0000000000E36000-memory.dmp

Filesize
88KB

Download
memory/1540-1-0x00007FF9BF273000-0x00007FF9BF275000-memory.dmp

Filesize
8KB

Download
memory/1540-2-0x00007FF9BF270000-0x00007FF9BFD31000-memory.dmp

Filesize
10.8MB

Download
memory/1540-7-0x00007FF9BF270000-0x00007FF9BFD31000-memory.dmp

Filesize
10.8MB

Download
memory/1540-8-0x00007FF9BF270000-0x00007FF9BFD31000-memory.dmp

Filesize
10.8MB

Download
memory/1540-13-0x00007FF9BF270000-0x00007FF9BFD31000-memory.dmp

Filesize
10.8MB

Download