asyncrat | 8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e

Analysis

max time kernel
148s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260629-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
03/07/2026, 03:43

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General

Target
8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
Size 45KB
Sample260703-d992qsa17v
SHA256 8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e
MD5 fdd1706e3122fbb0388815997afd6985
SHA1 762bd1abadb7c9e07d06b24332c77feb1622766e
SHA512 f38dfd0ff52b7a57c72fb29aef1c2ba8a53346261edb3c6467a9e74fedf23c639efe7992721fd0f93307aed4a427828ab4d29c949efe57903d9e3a9117135437
SSDEEP 768:vuogpT78XvEsWUOsRzqmo2qr5w0Q+KXPI4zjbvgX3iFLgLlR3jwBywFBDZkx:vuogpT7I62Q943bYXSFClR3jwzLdkx
TLSH
T17E231A003BE8823AF2BE4FB898F26145867AF5632603D54D6CC451D75A23FC6DA426FD
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

chickengeeks.com:80
chickengeeks.com:22
chickengeeks.com:8080
chickengeeks.com:8880
chickengeeks.com:2052
chickengeeks.com:2082
chickengeeks.com:2086
chickengeeks.com:2095
chickengeeks.com:443
chickengeeks.com:2053
chickengeeks.com:2083
chickengeeks.com:2087
chickengeeks.com:2096
chickengeeks.com:8443
www.chickengeeks.com:80
www.chickengeeks.com:22
www.chickengeeks.com:8080
www.chickengeeks.com:8880
www.chickengeeks.com:2052
www.chickengeeks.com:2082
www.chickengeeks.com:2086
www.chickengeeks.com:2095
www.chickengeeks.com:443
www.chickengeeks.com:2053
www.chickengeeks.com:2083
www.chickengeeks.com:2087
www.chickengeeks.com:2096
www.chickengeeks.com:8443
clop.chickengeeks.com:80
clop.chickengeeks.com:22
clop.chickengeeks.com:8080
clop.chickengeeks.com:8880
clop.chickengeeks.com:2052
clop.chickengeeks.com:2082
clop.chickengeeks.com:2086
clop.chickengeeks.com:2095
clop.chickengeeks.com:443
clop.chickengeeks.com:2053
clop.chickengeeks.com:2083
clop.chickengeeks.com:2087
clop.chickengeeks.com:2096
clop.chickengeeks.com:8443
malware.chickengeeks.com:80
malware.chickengeeks.com:22
malware.chickengeeks.com:8080
malware.chickengeeks.com:8880
malware.chickengeeks.com:2052
malware.chickengeeks.com:2082
malware.chickengeeks.com:2086
malware.chickengeeks.com:2095
malware.chickengeeks.com:443
malware.chickengeeks.com:2053
malware.chickengeeks.com:2083
malware.chickengeeks.com:2087
malware.chickengeeks.com:2096
malware.chickengeeks.com:8443
lokibot.chickengeeks.com:80
lokibot.chickengeeks.com:22
lokibot.chickengeeks.com:8080
lokibot.chickengeeks.com:8880
lokibot.chickengeeks.com:2052
lokibot.chickengeeks.com:2082
lokibot.chickengeeks.com:2086
lokibot.chickengeeks.com:2095
lokibot.chickengeeks.com:443
lokibot.chickengeeks.com:2053
lokibot.chickengeeks.com:2083
lokibot.chickengeeks.com:2087
lokibot.chickengeeks.com:2096
lokibot.chickengeeks.com:8443
client.chickengeeks.com:80
client.chickengeeks.com:22
client.chickengeeks.com:8080
client.chickengeeks.com:8880
client.chickengeeks.com:2052
client.chickengeeks.com:2082
client.chickengeeks.com:2086
client.chickengeeks.com:2095
client.chickengeeks.com:443
client.chickengeeks.com:2053
client.chickengeeks.com:2083
client.chickengeeks.com:2087
client.chickengeeks.com:2096
client.chickengeeks.com:8443

Mutex

gBFbbKeHPI9v

Attributes

delay
0
install
true
install_file
sek15nl2.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/0x0005000000016b47-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
3112	sek15nl2.exe
2804	sek15nl2.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	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.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	sek15nl2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sek15nl2.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2112	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
6048	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
Token: SeDebugPrivilege	3112	sek15nl2.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 3180	4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe	88
PID 4904 wrote to memory of 1728	4904	8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe	90
PID 3180 wrote to memory of 6048	3180	cmd.exe	92
PID 1728 wrote to memory of 2112	1728	cmd.exe	93
PID 1728 wrote to memory of 2804	1728	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe
"C:\Users\Admin\AppData\Local\Temp\8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "sek15nl2" /tr '"C:\Users\Admin\AppData\Roaming\sek15nl2.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3180
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "sek15nl2" /tr '"C:\Users\Admin\AppData\Roaming\sek15nl2.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:6048
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpCF22.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1728
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2112
- - C:\Users\Admin\AppData\Roaming\sek15nl2.exe
    "C:\Users\Admin\AppData\Roaming\sek15nl2.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2804

C:\Users\Admin\AppData\Roaming\sek15nl2.exe
"C:\Users\Admin\AppData\Roaming\sek15nl2.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3112

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

tmpCF22.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpCF22.tmp.bat
Size 152B
SHA256 c6081390ad1842dad8c987efc9a2f16e420f2e979af464650b037ab06023d600
MD5 0aa428ac9aabc012551df57c45a0fad9
SHA1 cc6f579efe80332b3a2c89deab6930826f2ed26f
SHA512 80298097a38c4918e8f4bfc69ef23c445341179ce15bb479d383ae963aebb56552e708e6027a13a4263165054d08705b233af00f66d2011a867a0d9cee476b7e
TLSH
T1A0C02B8251C5EE9F2905581307FFD48D91BAEC197F40BB40D74444AD36C084CF4DD345
MD5 SHA1 SHA512 TLSH

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sek15nl2.exe

Path C:\Users\Admin\AppData\Roaming\sek15nl2.exe
Size 45KB
SHA256 8fb9448d6156bd31f06d210d38b104a89eb6661813f3d72990e5b5b558ac5c1e
MD5 fdd1706e3122fbb0388815997afd6985
SHA1 762bd1abadb7c9e07d06b24332c77feb1622766e
SHA512 f38dfd0ff52b7a57c72fb29aef1c2ba8a53346261edb3c6467a9e74fedf23c639efe7992721fd0f93307aed4a427828ab4d29c949efe57903d9e3a9117135437
SSDEEP 768:vuogpT78XvEsWUOsRzqmo2qr5w0Q+KXPI4zjbvgX3iFLgLlR3jwBywFBDZkx:vuogpT7I62Q943bYXSFClR3jwzLdkx
TLSH
T17E231A003BE8823AF2BE4FB898F26145867AF5632603D54D6CC451D75A23FC6DA426FD
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/3112-12-0x0000000074ED0000-0x000000007568C000-memory.dmp

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memory/3112-14-0x0000000074ED0000-0x000000007568C000-memory.dmp

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memory/4904-0-0x0000000075052000-0x0000000075053000-memory.dmp

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memory/4904-1-0x0000000000AF0000-0x0000000000B02000-memory.dmp

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memory/4904-2-0x0000000075040000-0x00000000757FC000-memory.dmp

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memory/4904-3-0x0000000005660000-0x00000000056FC000-memory.dmp

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memory/4904-8-0x0000000075040000-0x00000000757FC000-memory.dmp

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