asyncrat | 8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f

Analysis

max time kernel
148s
max time network
148s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
12/07/2026, 02:58

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General

Target
8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
Size 45KB
Sample260712-df8a2scs5q
SHA256 8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f
MD5 10e7afc18019eea1279e1b271bc9a246
SHA1 f47da0b7e37c0e07f6707ccc1f974e3fc0300727
SHA512 8431398f8c96d334e336c9c2c321258dbab930a767838bb9d6b7c18301edb72422f1e5d1f25cd3aa8e076821849911c3d818e53da89ddcafd57c4b2fac69e509
SSDEEP 768:wuDWZTpw7bmaWUg3gSk0mo2qlLlsHoPEaMPI1KjbdgX3irRMdVFDyGdAKo9JQVB8:wuDWZTpMZSB2OuuEax1GbKXSNM/Fm9ug
TLSH
T128232B003FE9822BF1BE4F789CF26105867EF6A72603D5491CC4529B5713BC69642AFE
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

porn-th.com:80
porn-th.com:22
porn-th.com:8080
porn-th.com:8880
porn-th.com:2052
porn-th.com:2082
porn-th.com:2086
porn-th.com:2095
porn-th.com:443
porn-th.com:2053
porn-th.com:2083
porn-th.com:2087
porn-th.com:2096
porn-th.com:8443
www.porn-th.com:80
www.porn-th.com:22
www.porn-th.com:8080
www.porn-th.com:8880
www.porn-th.com:2052
www.porn-th.com:2082
www.porn-th.com:2086
www.porn-th.com:2095
www.porn-th.com:443
www.porn-th.com:2053
www.porn-th.com:2083
www.porn-th.com:2087
www.porn-th.com:2096
www.porn-th.com:8443
malware.porn-th.com:80
malware.porn-th.com:22
malware.porn-th.com:8080
malware.porn-th.com:8880
malware.porn-th.com:2052
malware.porn-th.com:2082
malware.porn-th.com:2086
malware.porn-th.com:2095
malware.porn-th.com:443
malware.porn-th.com:2053
malware.porn-th.com:2083
malware.porn-th.com:2087
malware.porn-th.com:2096
malware.porn-th.com:8443
formbook.porn-th.com:80
formbook.porn-th.com:22
formbook.porn-th.com:8080
formbook.porn-th.com:8880
formbook.porn-th.com:2052
formbook.porn-th.com:2082
formbook.porn-th.com:2086
formbook.porn-th.com:2095
formbook.porn-th.com:443
formbook.porn-th.com:2053
formbook.porn-th.com:2083
formbook.porn-th.com:2087
formbook.porn-th.com:2096
formbook.porn-th.com:8443

Mutex

YzDvayUngo5U

Attributes

delay
0
install
true
install_file
fdf5b.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/0x000e00000001c34c-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
1396	fdf5b.exe
6032	fdf5b.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	fdf5b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.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	fdf5b.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
5072	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
2640	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
Token: SeDebugPrivilege	1396	fdf5b.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4080 wrote to memory of 4612	4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe	87
PID 4080 wrote to memory of 4412	4080	8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe	88
PID 4612 wrote to memory of 2640	4612	cmd.exe	91
PID 4412 wrote to memory of 5072	4412	cmd.exe	92
PID 4412 wrote to memory of 6032	4412	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe
"C:\Users\Admin\AppData\Local\Temp\8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "fdf5b" /tr '"C:\Users\Admin\AppData\Roaming\fdf5b.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4612
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "fdf5b" /tr '"C:\Users\Admin\AppData\Roaming\fdf5b.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2640
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5337.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4412
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:5072
- - C:\Users\Admin\AppData\Roaming\fdf5b.exe
    "C:\Users\Admin\AppData\Roaming\fdf5b.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:6032

C:\Users\Admin\AppData\Roaming\fdf5b.exe
"C:\Users\Admin\AppData\Roaming\fdf5b.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1396

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

tmp5337.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp5337.tmp.bat
Size 149B
SHA256 4572134f0141024b7976b371c166b536952bebe6abae93dbd0380870c15672b1
MD5 3fd4a67369f46288492b0fc8360bcb5c
SHA1 f54eaa90f214ffacd5bf64ab247270b3dd70bd15
SHA512 c7153a02ad40b482a964b91bfcb0cd62122766d485246dc885e022ad837d79ad44d9cbe19336e79371210c63b8663d9e7fe96a2f73d355654ab966ffece34a5a
TLSH
T124C08C4251C6EA1E6805181316BAA98C92A26D6A3E40AB10C708441E9280448F09A241
MD5 SHA1 SHA512 TLSH

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fdf5b.exe

Path C:\Users\Admin\AppData\Roaming\fdf5b.exe
Size 45KB
SHA256 8b7c1845e53957ab59ec40bf60fc0250f3c1f7b0bccfba4b27d46f5742713c5f
MD5 10e7afc18019eea1279e1b271bc9a246
SHA1 f47da0b7e37c0e07f6707ccc1f974e3fc0300727
SHA512 8431398f8c96d334e336c9c2c321258dbab930a767838bb9d6b7c18301edb72422f1e5d1f25cd3aa8e076821849911c3d818e53da89ddcafd57c4b2fac69e509
SSDEEP 768:wuDWZTpw7bmaWUg3gSk0mo2qlLlsHoPEaMPI1KjbdgX3irRMdVFDyGdAKo9JQVB8:wuDWZTpMZSB2OuuEax1GbKXSNM/Fm9ug
TLSH
T128232B003FE9822BF1BE4F789CF26105867EF6A72603D5491CC4529B5713BC69642AFE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1396-12-0x0000000074AE0000-0x000000007529C000-memory.dmp

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memory/1396-14-0x0000000074AE0000-0x000000007529C000-memory.dmp

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memory/4080-0-0x0000000074C62000-0x0000000074C63000-memory.dmp

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memory/4080-1-0x0000000000590000-0x00000000005A2000-memory.dmp

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memory/4080-2-0x0000000074C50000-0x000000007540C000-memory.dmp

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memory/4080-3-0x0000000005060000-0x00000000050FC000-memory.dmp

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memory/4080-8-0x0000000074C50000-0x000000007540C000-memory.dmp

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