asyncrat | 97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4

Analysis

max time kernel
148s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
19/09/2026, 18:34

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General

Target
97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
Size 45KB
Sample260919-w73traae79
SHA256 97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4
MD5 d2493e349082d79ec1f912a068f54b8d
SHA1 ba4fa41582e7e15f0ec106c1d886cc523b7c5e47
SHA512 f21c1a5f14f772211b191edaca122823b9ae2231d06db02abbd4f6945ccee9c00c351b28b09488f32a5205a7654077a453bd2deba813db41706ab458a66fc905
SSDEEP 768:5udApTNctooWUS7C+mo2qtO6R8aI3OPIOzjbagP3i0suSQVKdBDZ0x:5udApTNmU2h+FO3O3bNPS0ZxVKzd0x
TLSH
T178231A003BE8822BF2BE4F78ADF25245467AF6673603D54A1CC451DB5623FC68A426FD
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

vnsextop1.com:80
vnsextop1.com:22
vnsextop1.com:8080
vnsextop1.com:8880
vnsextop1.com:2052
vnsextop1.com:2082
vnsextop1.com:2086
vnsextop1.com:2095
vnsextop1.com:443
vnsextop1.com:2053
vnsextop1.com:2083
vnsextop1.com:2087
vnsextop1.com:2096
vnsextop1.com:8443
www.vnsextop1.com:80
www.vnsextop1.com:22
www.vnsextop1.com:8080
www.vnsextop1.com:8880
www.vnsextop1.com:2052
www.vnsextop1.com:2082
www.vnsextop1.com:2086
www.vnsextop1.com:2095
www.vnsextop1.com:443
www.vnsextop1.com:2053
www.vnsextop1.com:2083
www.vnsextop1.com:2087
www.vnsextop1.com:2096
www.vnsextop1.com:8443
clop.vnsextop1.com:80
clop.vnsextop1.com:22
clop.vnsextop1.com:8080
clop.vnsextop1.com:8880
clop.vnsextop1.com:2052
clop.vnsextop1.com:2082
clop.vnsextop1.com:2086
clop.vnsextop1.com:2095
clop.vnsextop1.com:443
clop.vnsextop1.com:2053
clop.vnsextop1.com:2083
clop.vnsextop1.com:2087
clop.vnsextop1.com:2096
clop.vnsextop1.com:8443
triton.vnsextop1.com:80
triton.vnsextop1.com:22
triton.vnsextop1.com:8080
triton.vnsextop1.com:8880
triton.vnsextop1.com:2052
triton.vnsextop1.com:2082
triton.vnsextop1.com:2086
triton.vnsextop1.com:2095
triton.vnsextop1.com:443
triton.vnsextop1.com:2053
triton.vnsextop1.com:2083
triton.vnsextop1.com:2087
triton.vnsextop1.com:2096
triton.vnsextop1.com:8443

Mutex

icTVrxfK9E5n

Attributes

delay
0
install
true
install_file
toevzj.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/0x0009000000016b48-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
3412	toevzj.exe
4320	toevzj.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
2620	cmd.exe
5500	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	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	toevzj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	toevzj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4788	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
4576	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
Token: SeDebugPrivilege	3412	toevzj.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 700 wrote to memory of 2620	700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe	89
PID 700 wrote to memory of 5500	700	97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe	91
PID 2620 wrote to memory of 4576	2620	cmd.exe	93
PID 5500 wrote to memory of 4788	5500	cmd.exe	94
PID 5500 wrote to memory of 4320	5500	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe
"C:\Users\Admin\AppData\Local\Temp\97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:700
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "toevzj" /tr '"C:\Users\Admin\AppData\Roaming\toevzj.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2620
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "toevzj" /tr '"C:\Users\Admin\AppData\Roaming\toevzj.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4576
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp36E5.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5500
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4788
- - C:\Users\Admin\AppData\Roaming\toevzj.exe
    "C:\Users\Admin\AppData\Roaming\toevzj.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4320

C:\Users\Admin\AppData\Roaming\toevzj.exe
"C:\Users\Admin\AppData\Roaming\toevzj.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3412

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

tmp36E5.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp36E5.tmp.bat
Size 150B
SHA256 5d5f56c8f3352b389fc0c9f546a9937ddd1e8ed60af2b63497b55793e20b0f5a
MD5 ca1f30e53045fb1a010ad54864214d27
SHA1 44cce4ea304b71411078d2e64611901e16fa0507
SHA512 86d0d655881176e7fb9bd80706f5b97c8e8ff32440a67b6310ccc4436419a65f2e25bdd8b3f5afcfa77728d94403dd7b79c1f69b96c2006abe774b3f015a902f
TLSH
T115C08C4265C9AA4E2809941302BAA58E916669293F40AB00A31888092280888E0EA241
MD5 SHA1 SHA512 TLSH

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toevzj.exe

Path C:\Users\Admin\AppData\Roaming\toevzj.exe
Size 45KB
SHA256 97b9dff4e904a03c0f6ab17f9f75428b5aebed3e45383b00b5c0f165a3fe85d4
MD5 d2493e349082d79ec1f912a068f54b8d
SHA1 ba4fa41582e7e15f0ec106c1d886cc523b7c5e47
SHA512 f21c1a5f14f772211b191edaca122823b9ae2231d06db02abbd4f6945ccee9c00c351b28b09488f32a5205a7654077a453bd2deba813db41706ab458a66fc905
SSDEEP 768:5udApTNctooWUS7C+mo2qtO6R8aI3OPIOzjbagP3i0suSQVKdBDZ0x:5udApTNmU2h+FO3O3bNPS0ZxVKzd0x
TLSH
T178231A003BE8822BF2BE4F78ADF25245467AF6673603D54A1CC451DB5623FC68A426FD
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/700-0-0x0000000074462000-0x0000000074463000-memory.dmp

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memory/700-1-0x00000000004D0000-0x00000000004E2000-memory.dmp

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memory/700-2-0x0000000074450000-0x0000000074C0C000-memory.dmp

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memory/700-3-0x0000000004F70000-0x000000000500C000-memory.dmp

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memory/700-8-0x0000000074450000-0x0000000074C0C000-memory.dmp

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memory/3412-12-0x00000000742E0000-0x0000000074A9C000-memory.dmp

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memory/3412-14-0x00000000742E0000-0x0000000074A9C000-memory.dmp

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