asyncrat | f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014

Analysis

max time kernel
6s
max time network
150s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
17/07/2026, 14:18

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General

Target
f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
Size 45KB
Sample260717-rl9b7agy8v
SHA256 f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014
MD5 3e3ea7ed0380328f720768346a81a56c
SHA1 14fdb27bf559eeede3ae36832957232f2a09b2d5
SHA512 bf2604da219e0ef801fa4fa32e15c7dde90ba1e4d8be7acf65a5aa011ecdc5889228b626fd4b63f71409be5b65e5fe02ae71a97a5e51714c690d3b3043516498
SSDEEP 768:wuZ8pT1Uu4/cWUeT66mo2q1GcP0pycvHPIjzjbNgX3i/US2mYf5d7BDZMx:wuZ8pT1tc2FccMcvgj3baXSsSSfBdMx
TLSH
T1A1232A0037E8823BF2BE5F78A8F261454A7AF6637603D6491CC441DB5623FC69A426FD
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

sexviet.me:80
sexviet.me:22
sexviet.me:8080
sexviet.me:8880
sexviet.me:2052
sexviet.me:2082
sexviet.me:2086
sexviet.me:2095
sexviet.me:443
sexviet.me:2053
sexviet.me:2083
sexviet.me:2087
sexviet.me:2096
sexviet.me:8443
www.sexviet.me:80
www.sexviet.me:22
www.sexviet.me:8080
www.sexviet.me:8880
www.sexviet.me:2052
www.sexviet.me:2082
www.sexviet.me:2086
www.sexviet.me:2095
www.sexviet.me:443
www.sexviet.me:2053
www.sexviet.me:2083
www.sexviet.me:2087
www.sexviet.me:2096
www.sexviet.me:8443
notpetya.sexviet.me:80
notpetya.sexviet.me:22
notpetya.sexviet.me:8080
notpetya.sexviet.me:8880
notpetya.sexviet.me:2052
notpetya.sexviet.me:2082
notpetya.sexviet.me:2086
notpetya.sexviet.me:2095
notpetya.sexviet.me:443
notpetya.sexviet.me:2053
notpetya.sexviet.me:2083
notpetya.sexviet.me:2087
notpetya.sexviet.me:2096
notpetya.sexviet.me:8443
lokibot.sexviet.me:80
lokibot.sexviet.me:22
lokibot.sexviet.me:8080
lokibot.sexviet.me:8880
lokibot.sexviet.me:2052
lokibot.sexviet.me:2082
lokibot.sexviet.me:2086
lokibot.sexviet.me:2095
lokibot.sexviet.me:443
lokibot.sexviet.me:2053
lokibot.sexviet.me:2083
lokibot.sexviet.me:2087
lokibot.sexviet.me:2096
lokibot.sexviet.me:8443

Mutex

oX1cIzFCxzmj

Attributes

delay
0
install
true
install_file
ttuz.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/0x000e00000001c51e-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
1540	ttuz.exe
2996	ttuz.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 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	ttuz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ttuz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.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
4620	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
3108	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
Token: SeDebugPrivilege	1540	ttuz.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1588 wrote to memory of 1856	1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe	89
PID 1588 wrote to memory of 2400	1588	f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe	91
PID 1856 wrote to memory of 3108	1856	cmd.exe	93
PID 2400 wrote to memory of 4620	2400	cmd.exe	94
PID 2400 wrote to memory of 2996	2400	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe
"C:\Users\Admin\AppData\Local\Temp\f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1588
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "ttuz" /tr '"C:\Users\Admin\AppData\Roaming\ttuz.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1856
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "ttuz" /tr '"C:\Users\Admin\AppData\Roaming\ttuz.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3108
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp551B.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2400
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4620
- - C:\Users\Admin\AppData\Roaming\ttuz.exe
    "C:\Users\Admin\AppData\Roaming\ttuz.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2996

C:\Users\Admin\AppData\Roaming\ttuz.exe
"C:\Users\Admin\AppData\Roaming\ttuz.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1540

Network

MITRE ATT&CK Enterprise v16

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

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

tmp551B.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp551B.tmp.bat
Size 148B
SHA256 0e5508bc146777368fa59c6cb54761b5a2d1203ed3c077ea25741a3deda475b2
MD5 77762e6a0b4c3de36b93b1f625796c5f
SHA1 6937a1ac795d7ae3420c0781f98113de687dc76b
SHA512 f04d4087e34ca3e450ce21ff007bd8018b75930c48afd515c04e6bac81c57d27ff09070861660f1d6ffed4afc3c74db25c2d28f7de882414c81fdf47705dd1b6
TLSH
T198C02B5261C5EA4E3905586312FAD9DCD2767C9A3F40BB10C3C8540E1280848F0EF341
MD5 SHA1 SHA512 TLSH

Submit Download

ttuz.exe

Path C:\Users\Admin\AppData\Roaming\ttuz.exe
Size 45KB
SHA256 f37c859ad22cee15b9fb8e321708eaa57b958bbc6b31176ef0a91fefa4396014
MD5 3e3ea7ed0380328f720768346a81a56c
SHA1 14fdb27bf559eeede3ae36832957232f2a09b2d5
SHA512 bf2604da219e0ef801fa4fa32e15c7dde90ba1e4d8be7acf65a5aa011ecdc5889228b626fd4b63f71409be5b65e5fe02ae71a97a5e51714c690d3b3043516498
SSDEEP 768:wuZ8pT1Uu4/cWUeT66mo2q1GcP0pycvHPIjzjbNgX3i/US2mYf5d7BDZMx:wuZ8pT1tc2FccMcvgj3baXSsSSfBdMx
TLSH
T1A1232A0037E8823BF2BE5F78A8F261454A7AF6637603D6491CC441DB5623FC69A426FD
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1540-12-0x00000000741B0000-0x000000007496C000-memory.dmp

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memory/1540-14-0x00000000741B0000-0x000000007496C000-memory.dmp

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memory/1588-0-0x0000000074312000-0x0000000074313000-memory.dmp

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memory/1588-1-0x0000000000720000-0x0000000000732000-memory.dmp

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memory/1588-2-0x0000000074300000-0x0000000074ABC000-memory.dmp

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memory/1588-3-0x0000000002D80000-0x0000000002E1C000-memory.dmp

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memory/1588-8-0x0000000074300000-0x0000000074ABC000-memory.dmp

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