asyncrat | 09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a

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
05/08/2026, 08:50

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General

Target
09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
Size 45KB
Sample260805-kr3chatbre
SHA256 09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a
MD5 4aaaeeed241bf42910508d2b8b4e9bb6
SHA1 242ac96a43349bcd0141f9570e09564cb6cc41e9
SHA512 bb7837dba5d886e599398619a239bde4930d3c03c2248bfa55f35411a300879c6d55e25600ec13b09085e3ff87302f63c5b24db7dcf8bff6f3cbaa7d45f3ba66
SSDEEP 768:Iu5KkpTsU6Q8WU+xjamo2q1kHUttXAPIlzjbogX3iyCynLSVzSCDduCyDcBDZLx:Iu5KkpTsx/2d0rXll3b/XStx5uCw6dLx
TLSH
T1C8233B003BE9812BF2BE4F78A9F26145867AF2637603D64D1CC451DB5623FC29A426FD
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

sextin.org:80
sextin.org:22
sextin.org:8080
sextin.org:8880
sextin.org:2052
sextin.org:2082
sextin.org:2086
sextin.org:2095
sextin.org:443
sextin.org:2053
sextin.org:2083
sextin.org:2087
sextin.org:2096
sextin.org:8443
www.sextin.org:80
www.sextin.org:22
www.sextin.org:8080
www.sextin.org:8880
www.sextin.org:2052
www.sextin.org:2082
www.sextin.org:2086
www.sextin.org:2095
www.sextin.org:443
www.sextin.org:2053
www.sextin.org:2083
www.sextin.org:2087
www.sextin.org:2096
www.sextin.org:8443
ryuk.sextin.org:80
ryuk.sextin.org:22
ryuk.sextin.org:8080
ryuk.sextin.org:8880
ryuk.sextin.org:2052
ryuk.sextin.org:2082
ryuk.sextin.org:2086
ryuk.sextin.org:2095
ryuk.sextin.org:443
ryuk.sextin.org:2053
ryuk.sextin.org:2083
ryuk.sextin.org:2087
ryuk.sextin.org:2096
ryuk.sextin.org:8443
malware.sextin.org:80
malware.sextin.org:22
malware.sextin.org:8080
malware.sextin.org:8880
malware.sextin.org:2052
malware.sextin.org:2082
malware.sextin.org:2086
malware.sextin.org:2095
malware.sextin.org:443
malware.sextin.org:2053
malware.sextin.org:2083
malware.sextin.org:2087
malware.sextin.org:2096
malware.sextin.org:8443

Mutex

UjnTZiDZnA6N

Attributes

delay
0
install
true
install_file
8ttg80sr.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/0x000d00000001c5ed-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
5028	8ttg80sr.exe
5664	8ttg80sr.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
5212	cmd.exe
3316	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	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8ttg80sr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8ttg80sr.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3340	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
292	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
Token: SeDebugPrivilege	5028	8ttg80sr.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4432 wrote to memory of 5212	4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe	89
PID 4432 wrote to memory of 3316	4432	09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe	91
PID 3316 wrote to memory of 3340	3316	cmd.exe	93
PID 5212 wrote to memory of 292	5212	cmd.exe	94
PID 3316 wrote to memory of 5664	3316	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe
"C:\Users\Admin\AppData\Local\Temp\09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4432
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "8ttg80sr" /tr '"C:\Users\Admin\AppData\Roaming\8ttg80sr.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5212
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "8ttg80sr" /tr '"C:\Users\Admin\AppData\Roaming\8ttg80sr.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:292
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9AA0.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3316
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3340
- - C:\Users\Admin\AppData\Roaming\8ttg80sr.exe
    "C:\Users\Admin\AppData\Roaming\8ttg80sr.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5664

C:\Users\Admin\AppData\Roaming\8ttg80sr.exe
"C:\Users\Admin\AppData\Roaming\8ttg80sr.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:5028

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

tmp9AA0.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp9AA0.tmp.bat
Size 152B
SHA256 f90214fa90d30baa77ab7988eb2f6e9dc1f6ac54f76999d7978015c094713867
MD5 6e9b7d65f9e058ce227402b26f3bfd2f
SHA1 52df95f6be2ac48e918915042e12389013248618
SHA512 0155e96fe4dcca7d637eb962cab784a189ef8076b6e981958997699287a8a6bc56c546e9412aa41b6ee102c2e10c3123c7343f554f4a3c0ce35a9e77145cc746
TLSH
T142C02B4251C6FA1F2806142702FBD8ECA1726C293F84BB50C318400E1280C48F2D9B42
MD5 SHA1 SHA512 TLSH

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8ttg80sr.exe

Path C:\Users\Admin\AppData\Roaming\8ttg80sr.exe
Size 45KB
SHA256 09816402cb9abb76796622bbf071e25aa6e93c93205cf1a052068736e4497d8a
MD5 4aaaeeed241bf42910508d2b8b4e9bb6
SHA1 242ac96a43349bcd0141f9570e09564cb6cc41e9
SHA512 bb7837dba5d886e599398619a239bde4930d3c03c2248bfa55f35411a300879c6d55e25600ec13b09085e3ff87302f63c5b24db7dcf8bff6f3cbaa7d45f3ba66
SSDEEP 768:Iu5KkpTsU6Q8WU+xjamo2q1kHUttXAPIlzjbogX3iyCynLSVzSCDduCyDcBDZLx:Iu5KkpTsx/2d0rXll3b/XStx5uCw6dLx
TLSH
T1C8233B003BE9812BF2BE4F78A9F26145867AF2637603D64D1CC451DB5623FC29A426FD
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/4432-0-0x0000000074992000-0x0000000074993000-memory.dmp

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memory/4432-1-0x0000000000130000-0x0000000000142000-memory.dmp

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memory/4432-2-0x0000000074980000-0x000000007513C000-memory.dmp

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memory/4432-3-0x0000000004BF0000-0x0000000004C8C000-memory.dmp

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memory/4432-8-0x0000000074980000-0x000000007513C000-memory.dmp

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memory/5028-12-0x0000000074810000-0x0000000074FCC000-memory.dmp

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memory/5028-14-0x0000000074810000-0x0000000074FCC000-memory.dmp

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