asyncrat | acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd

Analysis

max time kernel
148s
max time network
149s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260629-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/07/2026, 10:17

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General

Target
acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
Size 756KB
Sample260702-mbr8pset6r
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
5540	Logs.exe
3696	Logs.exe
2080	Logs.exe
2540	Logs.exe

SmartAssembly .NET packer 2 IoCs

Detects SmartAssembly .NET packer.

resource	yara_rule
behavioral2/memory/2520-7-0x0000000005830000-0x0000000005844000-memory.dmp	SmartAssembly
behavioral2/memory/5540-24-0x00000000053F0000-0x0000000005404000-memory.dmp	SmartAssembly

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2520 set thread context of 3280	2520	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	88
PID 5540 set thread context of 2080	5540	Logs.exe	98
PID 3696 set thread context of 2540	3696	Logs.exe	99

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 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	cmd.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	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.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
2512	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
5240	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe
Token: SeDebugPrivilege	2080	Logs.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 3280	2520	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	88
PID 2520 wrote to memory of 3280	2520	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	88
PID 2520 wrote to memory of 3280	2520	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	88
PID 2520 wrote to memory of 3280	2520	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	88
PID 2520 wrote to memory of 3280	2520	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	88
PID 3280 wrote to memory of 2500	3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	89
PID 3280 wrote to memory of 2020	3280	acf70399dae65805a61e95b8a94602341ef0951d53aae400f99fbb0891bacffd.exe	91
PID 2500 wrote to memory of 5240	2500	cmd.exe	93
PID 2020 wrote to memory of 2512	2020	cmd.exe	94
PID 2020 wrote to memory of 3696	2020	cmd.exe	97
PID 5540 wrote to memory of 2080	5540	Logs.exe	98
PID 5540 wrote to memory of 2080	5540	Logs.exe	98
PID 5540 wrote to memory of 2080	5540	Logs.exe	98
PID 5540 wrote to memory of 2080	5540	Logs.exe	98
PID 5540 wrote to memory of 2080	5540	Logs.exe	98
PID 3696 wrote to memory of 2540	3696	Logs.exe	99
PID 3696 wrote to memory of 2540	3696	Logs.exe	99
PID 3696 wrote to memory of 2540	3696	Logs.exe	99
PID 3696 wrote to memory of 2540	3696	Logs.exe	99
PID 3696 wrote to memory of 2540	3696	Logs.exe	99

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:2520
- 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:3280
- - 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⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2500
  - - 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:5240
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp336A.tmp.bat""
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2020
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2512
  - - 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:3696
    - - 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:2540

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:5540
- 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:2080

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:2076

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

tmp336A.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp336A.tmp.bat
Size 148B
SHA256 944b5d77bac7539a85114e95bcba34ee1545a7949ea4853753cfbb41cc47a7aa
MD5 224e323aeabbda6e5cedefbff4322211
SHA1 30b7a983db473aa3a97e2b7ac62e85886de749bd
SHA512 d62da3c788bb9f67dc3ef9a293058f36ec307a1102658b414798c5345c74cfa251f98d73520b84f00a75ba5c5e38a96ed60d2cc714c46973f503b36b0c24d352
TLSH
T1FCC08C8261CAEA0F7905545316BBD58DA1726D193E40BB10A304844D2280848E0A9242
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/2520-8-0x0000000074232000-0x0000000074233000-memory.dmp

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memory/2520-2-0x00000000058A0000-0x0000000005E5A000-memory.dmp

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memory/2520-4-0x0000000005320000-0x000000000532A000-memory.dmp

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memory/2520-5-0x00000000054D0000-0x000000000556C000-memory.dmp

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memory/2520-6-0x0000000074220000-0x00000000749DC000-memory.dmp

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memory/2520-7-0x0000000005830000-0x0000000005844000-memory.dmp

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memory/2520-0-0x0000000074232000-0x0000000074233000-memory.dmp

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memory/2520-9-0x0000000074220000-0x00000000749DC000-memory.dmp

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memory/2520-10-0x00000000078F0000-0x0000000007994000-memory.dmp

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memory/2520-3-0x0000000005380000-0x0000000005412000-memory.dmp

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memory/2520-1-0x0000000000740000-0x0000000000804000-memory.dmp

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memory/2520-14-0x0000000074220000-0x00000000749DC000-memory.dmp

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memory/3280-12-0x0000000000400000-0x0000000000412000-memory.dmp

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memory/3280-20-0x0000000074220000-0x00000000749DC000-memory.dmp

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memory/3280-15-0x0000000074220000-0x00000000749DC000-memory.dmp

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memory/3280-13-0x0000000074220000-0x00000000749DC000-memory.dmp

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memory/5540-24-0x00000000053F0000-0x0000000005404000-memory.dmp

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