asyncrat | acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd

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
10/08/2026, 11:10

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General

Target
acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
Size 756KB
Sample260810-m98cksxdjd
SHA256 acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd
MD5 fb81c1838ff23c836f0ddc136859d009
SHA1 31584744cdd31a0fe924df68134a3a57cd2a6a9e
SHA512 d708fd0ebe6f90df37a5e22468fbcd56c015a350c5964e69342bcbece622257b514789ae055a05c19073f69d6023daa49881cf21767f3ec1c1d757f044f77a76
SSDEEP 12288:luyI3W/i3GvbQW3qXVddVuHpTy9EK4chL5O5HdoYUnDM6ShYfMQD1J:vIo6XVdiHpTy2KZhMF6YIDM1YMIX
TLSH
T1FAF402287BA9CE06D4EA37790E60F27253745ED9F914C2168FDABDEF7866B610508303
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

freshlogs.cloud-ip.cc:443

Mutex

l9mTYjhAA9Bp

Attributes

delay
3
install
true
install_file
Logs.exe
install_folder
%AppData%

aes.plain

Signatures

Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Executes dropped EXE 4 IoCs

pid	Process
1120	Logs.exe
6112	Logs.exe
5456	Logs.exe
1980	Logs.exe

SmartAssembly .NET packer 1 IoCs

Detects SmartAssembly .NET packer.

resource	yara_rule
behavioral2/memory/2196-7-0x00000000059D0000-0x00000000059E4000-memory.dmp	SmartAssembly

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2196 set thread context of 4612	2196	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	89
PID 1120 set thread context of 5456	1120	Logs.exe	100
PID 6112 set thread context of 1980	6112	Logs.exe	101

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
1292	cmd.exe
3028	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 10 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	Logs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Logs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Logs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Logs.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	timeout.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2744	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
5880	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
Token: SeDebugPrivilege	5456	Logs.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 4612	2196	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	89
PID 2196 wrote to memory of 4612	2196	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	89
PID 2196 wrote to memory of 4612	2196	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	89
PID 2196 wrote to memory of 4612	2196	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	89
PID 2196 wrote to memory of 4612	2196	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	89
PID 4612 wrote to memory of 1292	4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	90
PID 4612 wrote to memory of 3028	4612	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	92
PID 3028 wrote to memory of 2744	3028	cmd.exe	94
PID 1292 wrote to memory of 5880	1292	cmd.exe	95
PID 3028 wrote to memory of 6112	3028	cmd.exe	98
PID 1120 wrote to memory of 5456	1120	Logs.exe	100
PID 1120 wrote to memory of 5456	1120	Logs.exe	100
PID 1120 wrote to memory of 5456	1120	Logs.exe	100
PID 1120 wrote to memory of 5456	1120	Logs.exe	100
PID 1120 wrote to memory of 5456	1120	Logs.exe	100
PID 6112 wrote to memory of 1980	6112	Logs.exe	101
PID 6112 wrote to memory of 1980	6112	Logs.exe	101
PID 6112 wrote to memory of 1980	6112	Logs.exe	101
PID 6112 wrote to memory of 1980	6112	Logs.exe	101
PID 6112 wrote to memory of 1980	6112	Logs.exe	101

C:\Users\Admin\AppData\Local\Temp\acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
"C:\Users\Admin\AppData\Local\Temp\acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Users\Admin\AppData\Local\Temp\acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
  "C:\Users\Admin\AppData\Local\Temp\acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4612
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Logs" /tr '"C:\Users\Admin\AppData\Roaming\Logs.exe"' & exit
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1292
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "Logs" /tr '"C:\Users\Admin\AppData\Roaming\Logs.exe"'
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:5880
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9D40.tmp.bat""
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3028
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2744
  - - C:\Users\Admin\AppData\Roaming\Logs.exe
      "C:\Users\Admin\AppData\Roaming\Logs.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:6112
    - - C:\Users\Admin\AppData\Roaming\Logs.exe
        
        "C:\Users\Admin\AppData\Roaming\Logs.exe"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:1980

C:\Users\Admin\AppData\Roaming\Logs.exe
"C:\Users\Admin\AppData\Roaming\Logs.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1120
- C:\Users\Admin\AppData\Roaming\Logs.exe
  "C:\Users\Admin\AppData\Roaming\Logs.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:5456

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

tmp9D40.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp9D40.tmp.bat
Size 148B
SHA256 5c0c5ad44eb710a3c29e32350f1726b8edc848e668076bbf47dabcda2a30a444
MD5 483f013ee54179cad216d845754702e4
SHA1 fdd20473263f8d2b33b68a963069ccdc081997a1
SHA512 c348f70d8eaee9186cad1b65f3b81e2f5ac11619bb2e4cdf245a8c7d0b731c12365e85570b2bc48fc85c874540fb84a0ada52e04b2ffeef1299cdd03a54b8bc4
TLSH
T14EC02B4271C9EE0F3A05546722FAD4CEA1727C1D3F40BF50E304C00D5280848F0E9343
MD5 SHA1 SHA512 TLSH

Submit Download

Logs.exe

Path C:\Users\Admin\AppData\Roaming\Logs.exe
Size 756KB
SHA256 acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd
MD5 fb81c1838ff23c836f0ddc136859d009
SHA1 31584744cdd31a0fe924df68134a3a57cd2a6a9e
SHA512 d708fd0ebe6f90df37a5e22468fbcd56c015a350c5964e69342bcbece622257b514789ae055a05c19073f69d6023daa49881cf21767f3ec1c1d757f044f77a76
SSDEEP 12288:luyI3W/i3GvbQW3qXVddVuHpTy9EK4chL5O5HdoYUnDM6ShYfMQD1J:vIo6XVdiHpTy2KZhMF6YIDM1YMIX
TLSH
T1FAF402287BA9CE06D4EA37790E60F27253745ED9F914C2168FDABDEF7866B610508303
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2196-8-0x00000000743C2000-0x00000000743C3000-memory.dmp

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memory/2196-9-0x00000000743B0000-0x0000000074B6C000-memory.dmp

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memory/2196-5-0x00000000743B0000-0x0000000074B6C000-memory.dmp

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memory/2196-4-0x00000000056B0000-0x00000000056BA000-memory.dmp

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memory/2196-6-0x0000000005830000-0x00000000058CC000-memory.dmp

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memory/2196-7-0x00000000059D0000-0x00000000059E4000-memory.dmp

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memory/2196-0-0x00000000743C2000-0x00000000743C3000-memory.dmp

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memory/2196-3-0x0000000005790000-0x0000000005822000-memory.dmp

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memory/2196-10-0x0000000007D90000-0x0000000007E34000-memory.dmp

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memory/2196-1-0x0000000000AE0000-0x0000000000BA4000-memory.dmp

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memory/2196-2-0x0000000005D50000-0x000000000630A000-memory.dmp

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memory/2196-13-0x00000000743B0000-0x0000000074B6C000-memory.dmp

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memory/4612-14-0x00000000743B0000-0x0000000074B6C000-memory.dmp

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memory/4612-19-0x00000000743B0000-0x0000000074B6C000-memory.dmp

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memory/4612-12-0x00000000743B0000-0x0000000074B6C000-memory.dmp

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memory/4612-11-0x0000000000400000-0x0000000000412000-memory.dmp

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