asyncrat | 238139a663ceadc7c8ddaab899db91e0f30183ede64f6eb8678fb047123b3ce3

Analysis

max time kernel
148s
max time network
144s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
28/07/2026, 10:46

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General

Target
goshfjsd.exe
Size 45KB
Sample260728-mt968svbrc
SHA256 238139a663ceadc7c8ddaab899db91e0f30183ede64f6eb8678fb047123b3ce3
MD5 a1a3d5f59fee940b290ae412c7b61d9b
SHA1 7e98b2a721d83226333d569952fc93520a783131
SHA512 fa708f439b619d14515f28a46dc92c114eb0140a4433f4fb810b542e104419d0895e8e746fcab839a8bc8975b2cd0b3726171c4414227809be480e510bd9ee33
SSDEEP 768:RuRTNTkAJFuLWU3fz+Zmo2qAKgzZUpx7PI8JjbWgX3igjfyYMRNkU3RRBDZTx:RuRTNTk8Gy2eon8pbJXS1XxNdTx
TLSH
T172230A003BE9823BF2BE4FB898F26105467AF1672603D5896CC451D75723FC6DA426FA
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

admin defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Admin

ovoslot88c.co/vi-vn/:80
ovoslot88c.co/vi-vn/:443
ovoslot88c.co/vi-vn/:7788
ovoslot88c.co/vi-vn/:7879
ovoslot88c.co/vi-vn/:3577
ovoslot88c.co/:80
ovoslot88c.co/:443
ovoslot88c.co/:7788
ovoslot88c.co/:7879
ovoslot88c.co/:3577
www.ovoslot88c.co/:80
www.ovoslot88c.co/:443
www.ovoslot88c.co/:7788
www.ovoslot88c.co/:7879
www.ovoslot88c.co/:3577
ovoslot88c.co:80
ovoslot88c.co:443
ovoslot88c.co:7788
ovoslot88c.co:7879
ovoslot88c.co:3577
www.ovoslot88c.co:80
www.ovoslot88c.co:443
www.ovoslot88c.co:7788
www.ovoslot88c.co:7879
www.ovoslot88c.co:3577

Mutex

g1Ni9BAYaDMR

Attributes

delay
3
install
true
install_file
goshfjsd.exe
install_folder
%AppData%

aes.plain

Signatures

Family: 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/0x000e00000001c49d-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
2576	goshfjsd.exe
4544	goshfjsd.exe

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

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
3104	cmd.exe
248	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 7 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	goshfjsd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	goshfjsd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	goshfjsd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
5884	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
2824	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe
4632	goshfjsd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4632	goshfjsd.exe
Token: SeDebugPrivilege	2576	goshfjsd.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4632 wrote to memory of 3104	4632	goshfjsd.exe	89
PID 4632 wrote to memory of 248	4632	goshfjsd.exe	91
PID 248 wrote to memory of 5884	248	cmd.exe	93
PID 3104 wrote to memory of 2824	3104	cmd.exe	94
PID 248 wrote to memory of 4544	248	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\goshfjsd.exe
"C:\Users\Admin\AppData\Local\Temp\goshfjsd.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4632
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "goshfjsd" /tr '"C:\Users\Admin\AppData\Roaming\goshfjsd.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3104
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "goshfjsd" /tr '"C:\Users\Admin\AppData\Roaming\goshfjsd.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2824
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4C42.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:248
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:5884
- - C:\Users\Admin\AppData\Roaming\goshfjsd.exe
    "C:\Users\Admin\AppData\Roaming\goshfjsd.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4544

C:\Users\Admin\AppData\Roaming\goshfjsd.exe
"C:\Users\Admin\AppData\Roaming\goshfjsd.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2576

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

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

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

tmp4C42.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp4C42.tmp.bat
Size 152B
SHA256 f88d0a34c116679a76286f00addec510b8dc2a75dc61563117fc6e8a9a4f9199
MD5 6859c8f221bd6b27753dcbe473de8d8c
SHA1 3e0c8e0c772e032a86c6566319562a52ba020aef
SHA512 b6a2ccffd18fca3fdcd56178d8f862f8f693c72cd77d2da480d188fd12b50a391f35b48bc51fc3d68345244d39bda914f58462f3ecd04e5b7d1ed30bedd36892
TLSH
T137C02BD261C9EA0E2909A47307FBEC9CA6B7EC1E3F41BF10C304409D1280848F0DE341
MD5 SHA1 SHA512 TLSH

Submit Download

goshfjsd.exe

Path C:\Users\Admin\AppData\Roaming\goshfjsd.exe
Size 45KB
SHA256 238139a663ceadc7c8ddaab899db91e0f30183ede64f6eb8678fb047123b3ce3
MD5 a1a3d5f59fee940b290ae412c7b61d9b
SHA1 7e98b2a721d83226333d569952fc93520a783131
SHA512 fa708f439b619d14515f28a46dc92c114eb0140a4433f4fb810b542e104419d0895e8e746fcab839a8bc8975b2cd0b3726171c4414227809be480e510bd9ee33
SSDEEP 768:RuRTNTkAJFuLWU3fz+Zmo2qAKgzZUpx7PI8JjbWgX3igjfyYMRNkU3RRBDZTx:RuRTNTk8Gy2eon8pbJXS1XxNdTx
TLSH
T172230A003BE9823BF2BE4FB898F26105467AF1672603D5896CC451D75723FC6DA426FA
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2576-12-0x0000000074C00000-0x00000000753BC000-memory.dmp

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memory/2576-14-0x0000000074C00000-0x00000000753BC000-memory.dmp

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memory/4632-0-0x0000000074C12000-0x0000000074C13000-memory.dmp

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memory/4632-1-0x0000000000810000-0x0000000000822000-memory.dmp

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memory/4632-2-0x0000000074C00000-0x00000000753BC000-memory.dmp

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memory/4632-3-0x0000000005230000-0x00000000052CC000-memory.dmp

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memory/4632-9-0x0000000074C00000-0x00000000753BC000-memory.dmp

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