asyncrat | 993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab

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
11/07/2026, 13:04

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General

Target
993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
Size 45KB
Sample260711-qbd8macz2x
SHA256 993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab
MD5 e8af1ce4733a1f10c0d037fa5b5003bc
SHA1 d1a80ec85afd8df2ec5d435a65d237941cdc4d2c
SHA512 2cb1f709349028d6ce5a55b551782abe49b0eb2ff9f946e9f172e76d4ec1a7dc0fab8d2beeccddb97cae3b68eaf08b48afd01b313e0a3c7dd5b71c09b2b67003
SSDEEP 768:5uSy6pTpwrSWWUE3/WImo2qN9O5QPCBAPSNjPIRzjbXgX3iFe1GldWkBtmsBDZ0x:5uSy6pTpoo2MO5svSKR3bwXSFJltxd0x
TLSH
T11D232A0037E9822BF2BE4F7898F25145867BF6633603E5492CC451DB5613FC69A42AFE
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

sexvietvcl.com:80
sexvietvcl.com:22
sexvietvcl.com:8080
sexvietvcl.com:8880
sexvietvcl.com:2052
sexvietvcl.com:2082
sexvietvcl.com:2086
sexvietvcl.com:2095
sexvietvcl.com:443
sexvietvcl.com:2053
sexvietvcl.com:2083
sexvietvcl.com:2087
sexvietvcl.com:2096
sexvietvcl.com:8443
www.sexvietvcl.com:80
www.sexvietvcl.com:22
www.sexvietvcl.com:8080
www.sexvietvcl.com:8880
www.sexvietvcl.com:2052
www.sexvietvcl.com:2082
www.sexvietvcl.com:2086
www.sexvietvcl.com:2095
www.sexvietvcl.com:443
www.sexvietvcl.com:2053
www.sexvietvcl.com:2083
www.sexvietvcl.com:2087
www.sexvietvcl.com:2096
www.sexvietvcl.com:8443
nimda.sexvietvcl.com:80
nimda.sexvietvcl.com:22
nimda.sexvietvcl.com:8080
nimda.sexvietvcl.com:8880
nimda.sexvietvcl.com:2052
nimda.sexvietvcl.com:2082
nimda.sexvietvcl.com:2086
nimda.sexvietvcl.com:2095
nimda.sexvietvcl.com:443
nimda.sexvietvcl.com:2053
nimda.sexvietvcl.com:2083
nimda.sexvietvcl.com:2087
nimda.sexvietvcl.com:2096
nimda.sexvietvcl.com:8443
revil.sexvietvcl.com:80
revil.sexvietvcl.com:22
revil.sexvietvcl.com:8080
revil.sexvietvcl.com:8880
revil.sexvietvcl.com:2052
revil.sexvietvcl.com:2082
revil.sexvietvcl.com:2086
revil.sexvietvcl.com:2095
revil.sexvietvcl.com:443
revil.sexvietvcl.com:2053
revil.sexvietvcl.com:2083
revil.sexvietvcl.com:2087
revil.sexvietvcl.com:2096
revil.sexvietvcl.com:8443

Mutex

ASkxqaT9ehMp

Attributes

delay
0
install
true
install_file
56zmsiu.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
2428	56zmsiu.exe
3056	56zmsiu.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	56zmsiu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	56zmsiu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
6088	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
1860	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
Token: SeDebugPrivilege	2428	56zmsiu.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 1468	1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe	87
PID 1640 wrote to memory of 4116	1640	993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe	88
PID 1468 wrote to memory of 1860	1468	cmd.exe	91
PID 4116 wrote to memory of 6088	4116	cmd.exe	92
PID 4116 wrote to memory of 3056	4116	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe
"C:\Users\Admin\AppData\Local\Temp\993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "56zmsiu" /tr '"C:\Users\Admin\AppData\Roaming\56zmsiu.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1468
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "56zmsiu" /tr '"C:\Users\Admin\AppData\Roaming\56zmsiu.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1860
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp42BC.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4116
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:6088
- - C:\Users\Admin\AppData\Roaming\56zmsiu.exe
    "C:\Users\Admin\AppData\Roaming\56zmsiu.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3056

C:\Users\Admin\AppData\Roaming\56zmsiu.exe
"C:\Users\Admin\AppData\Roaming\56zmsiu.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2428

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

tmp42BC.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp42BC.tmp.bat
Size 151B
SHA256 aa1c762da6b5445e8f124f0bcaa08310a61cb5c3965f5e07e4bec23a5b08790b
MD5 6e2fd1e2bde858cbb4451683e7889c49
SHA1 fa8c5206f540ff3947f9d89bac79cd2d7245f1b4
SHA512 7c47a1dd88d73ee7dc5020d12bf18c207d65795f5008db12fd7d7ee2430954bb2e98767ad50cc5576831fdd42f36b918c5b70423b1195efaa60f0204fdfa2421
TLSH
T1AAC02B5355CAFF1E2805245312FAD48CA3B66C1D3F40BF00D704C84ED280848F0D9345
MD5 SHA1 SHA512 TLSH

Submit Download

56zmsiu.exe

Path C:\Users\Admin\AppData\Roaming\56zmsiu.exe
Size 45KB
SHA256 993252a052505b9777670fb885f5b999b81730de9fb0903d533e0ac6f3a19aab
MD5 e8af1ce4733a1f10c0d037fa5b5003bc
SHA1 d1a80ec85afd8df2ec5d435a65d237941cdc4d2c
SHA512 2cb1f709349028d6ce5a55b551782abe49b0eb2ff9f946e9f172e76d4ec1a7dc0fab8d2beeccddb97cae3b68eaf08b48afd01b313e0a3c7dd5b71c09b2b67003
SSDEEP 768:5uSy6pTpwrSWWUE3/WImo2qN9O5QPCBAPSNjPIRzjbXgX3iFe1GldWkBtmsBDZ0x:5uSy6pTpoo2MO5svSKR3bwXSFJltxd0x
TLSH
T11D232A0037E9822BF2BE4F7898F25145867BF6633603E5492CC451DB5613FC69A42AFE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1640-0-0x0000000074C12000-0x0000000074C13000-memory.dmp

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memory/1640-1-0x0000000000510000-0x0000000000522000-memory.dmp

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memory/1640-2-0x0000000074C00000-0x00000000753BC000-memory.dmp

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memory/1640-3-0x0000000004EC0000-0x0000000004F5C000-memory.dmp

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memory/1640-8-0x0000000074C00000-0x00000000753BC000-memory.dmp

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memory/2428-12-0x0000000074A90000-0x000000007524C000-memory.dmp

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memory/2428-14-0x0000000074A90000-0x000000007524C000-memory.dmp

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