asyncrat | bd948aeb2b607b34e8d32f22b9e5aee402057adebae4a2e0c70bd666e688f1f8

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14/01/2025, 12:24

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General

Target

4363463463464363463463463.exe
Size

10KB
MD5

2a94f3960c58c6e70826495f76d00b85
SHA1

e2a1a5641295f5ebf01a37ac1c170ac0814bb71a
SHA256

2fcad226b17131da4274e1b9f8f31359bdd325c9568665f08fd1f6c5d06a23ce
SHA512

fbf55b55fcfb12eb8c029562956229208b9e8e2591859d6336c28a590c92a4d0f7033a77c46ef6ebe07ddfca353aba1e84b51907cd774beab148ee901c92d62f
SSDEEP

192:xlwayyHOXGc20L7BIW12n/ePSjiTlzkGu8stYcFwVc03KY:xlwwHe/20PKn/cLTlHuptYcFwVc03K

Score

10^/10

asyncrat metasploit default backdoor discovery rat trojan

Malware Config

Extracted

Family

metasploit

Version

windows/reverse_tcp

47.90.142.15:4567

Extracted

Family

asyncrat

Botnet

Default

technical-southwest.gl.at.ply.gg:58694

Attributes

delay
1
install
true
install_file
WINDOWS.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
MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit
Metasploit family
metasploit

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x0003000000022187-22.dat	family_asyncrat

Downloads MZ/PE file

Checks computer location settings 2 TTPs 2 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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	4363463463464363463463463.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	Loader.exe

Executes dropped EXE 3 IoCs

pid	Process
1756	123.exe
1448	Loader.exe
1952	WINDOWS.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4363463463464363463463463.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	123.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3000	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
3092	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1448	Loader.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe
1952	WINDOWS.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	804	4363463463464363463463463.exe
Token: SeDebugPrivilege	1448	Loader.exe
Token: SeDebugPrivilege	1448	Loader.exe
Token: SeDebugPrivilege	1952	WINDOWS.exe
Token: SeDebugPrivilege	1952	WINDOWS.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 804 wrote to memory of 1756	804	4363463463464363463463463.exe	97
PID 804 wrote to memory of 1756	804	4363463463464363463463463.exe	97
PID 804 wrote to memory of 1756	804	4363463463464363463463463.exe	97
PID 804 wrote to memory of 1448	804	4363463463464363463463463.exe	101
PID 804 wrote to memory of 1448	804	4363463463464363463463463.exe	101
PID 1448 wrote to memory of 1204	1448	Loader.exe	103
PID 1448 wrote to memory of 1204	1448	Loader.exe	103
PID 1448 wrote to memory of 4264	1448	Loader.exe	105
PID 1448 wrote to memory of 4264	1448	Loader.exe	105
PID 4264 wrote to memory of 3000	4264	cmd.exe	107
PID 4264 wrote to memory of 3000	4264	cmd.exe	107
PID 1204 wrote to memory of 3092	1204	cmd.exe	108
PID 1204 wrote to memory of 3092	1204	cmd.exe	108
PID 4264 wrote to memory of 1952	4264	cmd.exe	109
PID 4264 wrote to memory of 1952	4264	cmd.exe	109

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\4363463463464363463463463.exe
"C:\Users\Admin\AppData\Local\Temp\4363463463464363463463463.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:804
- C:\Users\Admin\AppData\Local\Temp\Files\123.exe
  "C:\Users\Admin\AppData\Local\Temp\Files\123.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1756
- C:\Users\Admin\AppData\Local\Temp\Files\Loader.exe
  "C:\Users\Admin\AppData\Local\Temp\Files\Loader.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1448
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "WINDOWS" /tr '"C:\Users\Admin\AppData\Roaming\WINDOWS.exe"' & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1204
  - - C:\Windows\system32\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "WINDOWS" /tr '"C:\Users\Admin\AppData\Roaming\WINDOWS.exe"'
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:3092
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC6E5.tmp.bat""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4264
  - - C:\Windows\system32\timeout.exe
      timeout 3
      4⤵
      Delays execution with timeout.exe
      PID:3000
  - - C:\Users\Admin\AppData\Roaming\WINDOWS.exe
      "C:\Users\Admin\AppData\Roaming\WINDOWS.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1952

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Files\123.exe

Filesize
72KB

MD5
29fd97e2ce44268ccac3ebc2bd8ed78c

SHA1
98d3df4d3678f2efd998f62a09ec60166f8b209b

SHA256
3d6315fa786c82b89db895d8ef45f65eba125b61206d46fe3abbaa7719b85e55

SHA512
6928cb2c1c0a472b009e6310aedaca572027f96c42d39733b9be9b7adfee6ad39e7c1e0ecc664d865cec1618b383f79baeae20be386ba76d30e3f992b76a92e2

Download Submit
C:\Users\Admin\AppData\Local\Temp\Files\Loader.exe

Filesize
63KB

MD5
7ceb11ebb7a55e33a82bc3b66f554e79

SHA1
8dfd574ad06ded662d92d81b72f14c1914ac45b5

SHA256
aea3e89e45a33441bcd06c990282f8601eb960a641c611222dce2fe09685e603

SHA512
d8cd7af50996015163c8926fc7b6df6a6e2c0b3f6c8fcff37cad5b72fed115f7134723d99f61a20576b83e67107a3a410f5ef2312191446b3d0759cb739e6ccd

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC6E5.tmp.bat

Filesize
151B

MD5
50e727b6190a8caecf42d0c7aeeee0d4

SHA1
fcc6663cbd5ec90e8e44d1779a8df213ac7d962f

SHA256
cfbb6dfc7bb1b6605896994aaba3c6a32e1ef649317f6e0385354c634291c1cf

SHA512
cb20b548dd1a68b59ae1cfa5c065931cca13dcd681d2d0fa5b4aad3721676dfca7ce34ed6c51debc56100f35f9ee760d8c6bb6fff44805c0b0fd3c5204d8b1b0

Download Submit
memory/804-3-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/804-4-0x000000007461E000-0x000000007461F000-memory.dmp

Filesize
4KB

Download
memory/804-5-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/804-0-0x000000007461E000-0x000000007461F000-memory.dmp

Filesize
4KB

Download
memory/804-2-0x00000000054A0000-0x000000000553C000-memory.dmp

Filesize
624KB

Download
memory/804-1-0x0000000000B10000-0x0000000000B18000-memory.dmp

Filesize
32KB

Download
memory/1448-29-0x00007FFFD90B3000-0x00007FFFD90B5000-memory.dmp

Filesize
8KB

Download
memory/1448-30-0x0000000000C90000-0x0000000000CA6000-memory.dmp

Filesize
88KB

Download
memory/1448-31-0x00007FFFD90B0000-0x00007FFFD9B71000-memory.dmp

Filesize
10.8MB

Download
memory/1448-36-0x00007FFFD90B0000-0x00007FFFD9B71000-memory.dmp

Filesize
10.8MB

Download
memory/1448-37-0x00007FFFD90B0000-0x00007FFFD9B71000-memory.dmp

Filesize
10.8MB

Download
memory/1756-17-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download