asyncrat | 073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608

Analysis

max time kernel
148s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
04/08/2026, 11:20

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General

Target
073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
Size 45KB
Sample260804-nfveasdm7x
SHA256 073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608
MD5 cf89051aab8becaa73effa773e7e0ffb
SHA1 613768aea73eb222908cc8ad8eaebc901ca0ae63
SHA512 da55570d3efa527265c566bd7244f99dfb70cdb8200034afcef7955b2ff13ee3c55da0354ff843c71d8202a060e87e3b025823c14d66f1dfd929be81ab4b6fa6
SSDEEP 768:cu7m/5THrq+CWUoDuMmo2qFhlsNoPEaMPIcrjbYgX3iV8BNBQR2y8BBrBDZUx:cu7e5TH2A2wsuEaxc/bPXSkbQAyY9dUx
TLSH
T199232B003BE8C22BF2BE5F789DF26145867AF6636603D54E1C8411D75613FC68A42AFE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default command_and_control defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

fimsexvietnam.com:80
fimsexvietnam.com:22
fimsexvietnam.com:8080
fimsexvietnam.com:8880
fimsexvietnam.com:2052
fimsexvietnam.com:2082
fimsexvietnam.com:2086
fimsexvietnam.com:2095
fimsexvietnam.com:443
fimsexvietnam.com:2053
fimsexvietnam.com:2083
fimsexvietnam.com:2087
fimsexvietnam.com:2096
fimsexvietnam.com:8443
www.fimsexvietnam.com:80
www.fimsexvietnam.com:22
www.fimsexvietnam.com:8080
www.fimsexvietnam.com:8880
www.fimsexvietnam.com:2052
www.fimsexvietnam.com:2082
www.fimsexvietnam.com:2086
www.fimsexvietnam.com:2095
www.fimsexvietnam.com:443
www.fimsexvietnam.com:2053
www.fimsexvietnam.com:2083
www.fimsexvietnam.com:2087
www.fimsexvietnam.com:2096
www.fimsexvietnam.com:8443
notpetya.fimsexvietnam.com:80
notpetya.fimsexvietnam.com:22
notpetya.fimsexvietnam.com:8080
notpetya.fimsexvietnam.com:8880
notpetya.fimsexvietnam.com:2052
notpetya.fimsexvietnam.com:2082
notpetya.fimsexvietnam.com:2086
notpetya.fimsexvietnam.com:2095
notpetya.fimsexvietnam.com:443
notpetya.fimsexvietnam.com:2053
notpetya.fimsexvietnam.com:2083
notpetya.fimsexvietnam.com:2087
notpetya.fimsexvietnam.com:2096
notpetya.fimsexvietnam.com:8443
mydoom.fimsexvietnam.com:80
mydoom.fimsexvietnam.com:22
mydoom.fimsexvietnam.com:8080
mydoom.fimsexvietnam.com:8880
mydoom.fimsexvietnam.com:2052
mydoom.fimsexvietnam.com:2082
mydoom.fimsexvietnam.com:2086
mydoom.fimsexvietnam.com:2095
mydoom.fimsexvietnam.com:443
mydoom.fimsexvietnam.com:2053
mydoom.fimsexvietnam.com:2083
mydoom.fimsexvietnam.com:2087
mydoom.fimsexvietnam.com:2096
mydoom.fimsexvietnam.com:8443

Mutex

X3ySf7TLONDi

Attributes

delay
0
install
true
install_file
3oepc.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/0x000400000000043e-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
5772	3oepc.exe
4100	3oepc.exe

Outbound SSH connection to public host 2 TTPs 1 IoCs

SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

command_and_control

Protocol Tunneling

T1572

Network Service Discovery

T1046

description	flow	ioc
SSH destination	17	172.67.182.173:22

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
1096	cmd.exe
4208	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	3oepc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3oepc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
6048	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
5788	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2456 wrote to memory of 1096	2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe	89
PID 2456 wrote to memory of 4208	2456	073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe	90
PID 1096 wrote to memory of 5788	1096	cmd.exe	93
PID 4208 wrote to memory of 6048	4208	cmd.exe	94
PID 4208 wrote to memory of 4100	4208	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe
"C:\Users\Admin\AppData\Local\Temp\073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2456
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "3oepc" /tr '"C:\Users\Admin\AppData\Roaming\3oepc.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1096
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "3oepc" /tr '"C:\Users\Admin\AppData\Roaming\3oepc.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5788
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp16BA.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4208
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:6048
- - C:\Users\Admin\AppData\Roaming\3oepc.exe
    "C:\Users\Admin\AppData\Roaming\3oepc.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4100

C:\Users\Admin\AppData\Roaming\3oepc.exe
"C:\Users\Admin\AppData\Roaming\3oepc.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5772

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

Network Service Discovery

T1046

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Protocol Tunneling

T1572

Exfiltration

Impact

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Downloads

tmp16BA.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp16BA.tmp.bat
Size 149B
SHA256 3eef13544fd8ca278aac0e4d759b737e3235704568c24666de704baa43d0042e
MD5 451a4b4a213eb1c1b2c96b6bde246cc2
SHA1 e1d36b472b495e5cf125b41964c19f57c2454106
SHA512 a1d169314daf6745897fe97984daf1bd8d703972ee1bbc379ee8c9c93a6c1fa08f45aea0f74ea1efc7a8e288b2abc5e30d770b502c31b3047945406243159fca
TLSH
T1CEC02B4259CEEB5E6849542302FED48CA1B66C1D3F40BB00C304444D238044CF0DD345
MD5 SHA1 SHA512 TLSH

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3oepc.exe

Path C:\Users\Admin\AppData\Roaming\3oepc.exe
Size 45KB
SHA256 073e12137128329937e436a17e6a8c8eb8766059eeb4538a5407fa28eb91b608
MD5 cf89051aab8becaa73effa773e7e0ffb
SHA1 613768aea73eb222908cc8ad8eaebc901ca0ae63
SHA512 da55570d3efa527265c566bd7244f99dfb70cdb8200034afcef7955b2ff13ee3c55da0354ff843c71d8202a060e87e3b025823c14d66f1dfd929be81ab4b6fa6
SSDEEP 768:cu7m/5THrq+CWUoDuMmo2qFhlsNoPEaMPIcrjbYgX3iV8BNBQR2y8BBrBDZUx:cu7e5TH2A2wsuEaxc/bPXSkbQAyY9dUx
TLSH
T199232B003BE8C22BF2BE5F789DF26145867AF6636603D54E1C8411D75613FC68A42AFE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2456-0-0x0000000074B92000-0x0000000074B93000-memory.dmp

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memory/2456-1-0x0000000000C60000-0x0000000000C72000-memory.dmp

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memory/2456-2-0x0000000074B80000-0x000000007533C000-memory.dmp

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memory/2456-3-0x00000000057F0000-0x000000000588C000-memory.dmp

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memory/2456-8-0x0000000074B80000-0x000000007533C000-memory.dmp

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memory/5772-12-0x0000000074A10000-0x00000000751CC000-memory.dmp

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memory/5772-14-0x0000000074A10000-0x00000000751CC000-memory.dmp

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