asyncrat | 18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3

Analysis

max time kernel
148s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
16/07/2026, 13:21

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General

Target
18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
Size 45KB
Sample260716-ql23faet3k
SHA256 18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3
MD5 be0d4d943ed6dbdc8eb26d2ee6dc88e1
SHA1 018423304fe7a7fffe7015b2c6fb0f76dac68fdf
SHA512 90f694f3fc44d8dce23257ca64ab4847f60e2dd5f4f539a390b68b55e66b30c1665ef9a6482c5da940ffbbe8e5b142d4447f1bfe0cdbcc12d1f2585f5b3f114b
SSDEEP 768:MuLAZTnAkuSWUYzG8mo2qFo3HE4eVoOPIGjzjbPga3ikD5jfvFv2BDZEx:MuLAZTnbg2BU1o3Gj3b4aSqjftvYdEx
TLSH
T1C4231B003BE8812BF2BE4F7499F26145867AF6633603D54E1CC451DB5723FC69A426EE
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

vuasexviet.com:80
vuasexviet.com:22
vuasexviet.com:8080
vuasexviet.com:8880
vuasexviet.com:2052
vuasexviet.com:2082
vuasexviet.com:2086
vuasexviet.com:2095
vuasexviet.com:443
vuasexviet.com:2053
vuasexviet.com:2083
vuasexviet.com:2087
vuasexviet.com:2096
vuasexviet.com:8443
www.vuasexviet.com:80
www.vuasexviet.com:22
www.vuasexviet.com:8080
www.vuasexviet.com:8880
www.vuasexviet.com:2052
www.vuasexviet.com:2082
www.vuasexviet.com:2086
www.vuasexviet.com:2095
www.vuasexviet.com:443
www.vuasexviet.com:2053
www.vuasexviet.com:2083
www.vuasexviet.com:2087
www.vuasexviet.com:2096
www.vuasexviet.com:8443
malware.vuasexviet.com:80
malware.vuasexviet.com:22
malware.vuasexviet.com:8080
malware.vuasexviet.com:8880
malware.vuasexviet.com:2052
malware.vuasexviet.com:2082
malware.vuasexviet.com:2086
malware.vuasexviet.com:2095
malware.vuasexviet.com:443
malware.vuasexviet.com:2053
malware.vuasexviet.com:2083
malware.vuasexviet.com:2087
malware.vuasexviet.com:2096
malware.vuasexviet.com:8443
cl0p.vuasexviet.com:80
cl0p.vuasexviet.com:22
cl0p.vuasexviet.com:8080
cl0p.vuasexviet.com:8880
cl0p.vuasexviet.com:2052
cl0p.vuasexviet.com:2082
cl0p.vuasexviet.com:2086
cl0p.vuasexviet.com:2095
cl0p.vuasexviet.com:443
cl0p.vuasexviet.com:2053
cl0p.vuasexviet.com:2083
cl0p.vuasexviet.com:2087
cl0p.vuasexviet.com:2096
cl0p.vuasexviet.com:8443
fakeupdates.vuasexviet.com:80
fakeupdates.vuasexviet.com:22
fakeupdates.vuasexviet.com:8080
fakeupdates.vuasexviet.com:8880
fakeupdates.vuasexviet.com:2052
fakeupdates.vuasexviet.com:2082
fakeupdates.vuasexviet.com:2086
fakeupdates.vuasexviet.com:2095
fakeupdates.vuasexviet.com:443
fakeupdates.vuasexviet.com:2053
fakeupdates.vuasexviet.com:2083
fakeupdates.vuasexviet.com:2087
fakeupdates.vuasexviet.com:2096
fakeupdates.vuasexviet.com:8443

Mutex

mOctSPv9mHtn

Attributes

delay
0
install
true
install_file
ubz9m.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/0x001700000001c3da-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
272	ubz9m.exe
5704	ubz9m.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	ubz9m.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ubz9m.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4728	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
4820	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
Token: SeDebugPrivilege	272	ubz9m.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5524 wrote to memory of 4780	5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe	88
PID 5524 wrote to memory of 4320	5524	18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe	89
PID 4780 wrote to memory of 4820	4780	cmd.exe	92
PID 4320 wrote to memory of 4728	4320	cmd.exe	93
PID 4320 wrote to memory of 5704	4320	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe
"C:\Users\Admin\AppData\Local\Temp\18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5524
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "ubz9m" /tr '"C:\Users\Admin\AppData\Roaming\ubz9m.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4780
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "ubz9m" /tr '"C:\Users\Admin\AppData\Roaming\ubz9m.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4820
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6C9B.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4320
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4728
- - C:\Users\Admin\AppData\Roaming\ubz9m.exe
    "C:\Users\Admin\AppData\Roaming\ubz9m.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5704

C:\Users\Admin\AppData\Roaming\ubz9m.exe
"C:\Users\Admin\AppData\Roaming\ubz9m.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:272

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

Replay Monitor

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Downloads

tmp6C9B.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp6C9B.tmp.bat
Size 149B
SHA256 4a62980aa61a8dfea0f00cf16c04042f28f4886ff144ab1ff96752a387a2edf4
MD5 e93bb278ebe5a3fed8fe05d704e717fb
SHA1 6a4a5bb1b31b2c0af75bf50a4a083311f3f3ddc0
SHA512 187deba10cecd7bfe2adcd41946fa1ca465ddc25ce3a67b1e3bfdc9ba7a09a2a6d7a799d82ee31ae48453298e95bc7b7766a65b1d43ab3668bf75fab108c7d5c
TLSH
T1ACC02B8265C9EE1E7B05141302FFE9DC9172AC6D3F84BB00C348453E1280449F0D9341
MD5 SHA1 SHA512 TLSH

Submit Download

ubz9m.exe

Path C:\Users\Admin\AppData\Roaming\ubz9m.exe
Size 45KB
SHA256 18400596d18bbf7bc9833c986965b341f9df93e0713b32257ffbb08a6b0d3fd3
MD5 be0d4d943ed6dbdc8eb26d2ee6dc88e1
SHA1 018423304fe7a7fffe7015b2c6fb0f76dac68fdf
SHA512 90f694f3fc44d8dce23257ca64ab4847f60e2dd5f4f539a390b68b55e66b30c1665ef9a6482c5da940ffbbe8e5b142d4447f1bfe0cdbcc12d1f2585f5b3f114b
SSDEEP 768:MuLAZTnAkuSWUYzG8mo2qFo3HE4eVoOPIGjzjbPga3ikD5jfvFv2BDZEx:MuLAZTnbg2BU1o3Gj3b4aSqjftvYdEx
TLSH
T1C4231B003BE8812BF2BE4F7499F26145867AF6633603D54E1CC451DB5723FC69A426EE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/272-12-0x0000000074A20000-0x00000000751DC000-memory.dmp

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memory/272-14-0x0000000074A20000-0x00000000751DC000-memory.dmp

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memory/5524-0-0x0000000074BA2000-0x0000000074BA3000-memory.dmp

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memory/5524-1-0x0000000000FB0000-0x0000000000FC2000-memory.dmp

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memory/5524-2-0x0000000074B90000-0x000000007534C000-memory.dmp

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memory/5524-3-0x0000000005AD0000-0x0000000005B6C000-memory.dmp

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memory/5524-8-0x0000000074B90000-0x000000007534C000-memory.dmp

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