asyncrat | b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed

Analysis

max time kernel
148s
max time network
147s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
04/08/2026, 00:09

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General

Target
b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
Size 45KB
Sample260804-aftacazblc
SHA256 b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed
MD5 c706727bffc9e1713dd33d7a45eb9580
SHA1 ba08145e0b3974a1b938f3c2de0fbaa308f756e3
SHA512 05a472533d2979e8784a866a639687b31c1bae96ffe0c2bd8dc581ebd58f237f54f71d78e3470dd8323eeb3ea55d705c514626ed8e279e67752558dbeb5972ec
SSDEEP 768:MuLAZTnAkuSWUYzG8mo2qFPJXo5EayPI2zjbygX3ipFHxSpgLpgNmid1HoBDZEx:MuLAZTnbg2KQEab23b1XSp4u+HOdEx
TLSH
T1DC232B003BE8812BF2BE5F78ADF25105867AF5637603D55A2CC402D75B13BC6DA426FA
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default command_and_control defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

xemcliphot.net:80
xemcliphot.net:22
xemcliphot.net:8080
xemcliphot.net:8880
xemcliphot.net:2052
xemcliphot.net:2082
xemcliphot.net:2086
xemcliphot.net:2095
xemcliphot.net:443
xemcliphot.net:2053
xemcliphot.net:2083
xemcliphot.net:2087
xemcliphot.net:2096
xemcliphot.net:8443
www.xemcliphot.net:80
www.xemcliphot.net:22
www.xemcliphot.net:8080
www.xemcliphot.net:8880
www.xemcliphot.net:2052
www.xemcliphot.net:2082
www.xemcliphot.net:2086
www.xemcliphot.net:2095
www.xemcliphot.net:443
www.xemcliphot.net:2053
www.xemcliphot.net:2083
www.xemcliphot.net:2087
www.xemcliphot.net:2096
www.xemcliphot.net:8443
malware.xemcliphot.net:80
malware.xemcliphot.net:22
malware.xemcliphot.net:8080
malware.xemcliphot.net:8880
malware.xemcliphot.net:2052
malware.xemcliphot.net:2082
malware.xemcliphot.net:2086
malware.xemcliphot.net:2095
malware.xemcliphot.net:443
malware.xemcliphot.net:2053
malware.xemcliphot.net:2083
malware.xemcliphot.net:2087
malware.xemcliphot.net:2096
malware.xemcliphot.net:8443
sasser.xemcliphot.net:80
sasser.xemcliphot.net:22
sasser.xemcliphot.net:8080
sasser.xemcliphot.net:8880
sasser.xemcliphot.net:2052
sasser.xemcliphot.net:2082
sasser.xemcliphot.net:2086
sasser.xemcliphot.net:2095
sasser.xemcliphot.net:443
sasser.xemcliphot.net:2053
sasser.xemcliphot.net:2083
sasser.xemcliphot.net:2087
sasser.xemcliphot.net:2096
sasser.xemcliphot.net:8443
cl0p.xemcliphot.net:80
cl0p.xemcliphot.net:22
cl0p.xemcliphot.net:8080
cl0p.xemcliphot.net:8880
cl0p.xemcliphot.net:2052
cl0p.xemcliphot.net:2082
cl0p.xemcliphot.net:2086
cl0p.xemcliphot.net:2095
cl0p.xemcliphot.net:443
cl0p.xemcliphot.net:2053
cl0p.xemcliphot.net:2083
cl0p.xemcliphot.net:2087
cl0p.xemcliphot.net:2096
cl0p.xemcliphot.net:8443

Mutex

ougla7vGg2qA

Attributes

delay
0
install
true
install_file
qse50.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/0x000e00000001c581-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
3452	qse50.exe
4984	qse50.exe

Outbound SSH connection to public host 2 TTPs 2 IoCs

SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

command_and_control

Protocol Tunneling

T1572

Network Service Discovery

T1046

description	flow	ioc
SSH destination	10	172.67.154.81:22
SSH destination	11	104.21.48.157:22

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
4512	cmd.exe
1944	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	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	qse50.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qse50.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4272	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
3636	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
Token: SeDebugPrivilege	3452	qse50.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 4512	4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe	89
PID 4120 wrote to memory of 1944	4120	b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe	91
PID 4512 wrote to memory of 3636	4512	cmd.exe	93
PID 1944 wrote to memory of 4272	1944	cmd.exe	94
PID 1944 wrote to memory of 4984	1944	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe
"C:\Users\Admin\AppData\Local\Temp\b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "qse50" /tr '"C:\Users\Admin\AppData\Roaming\qse50.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4512
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "qse50" /tr '"C:\Users\Admin\AppData\Roaming\qse50.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3636
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2B4C.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1944
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4272
- - C:\Users\Admin\AppData\Roaming\qse50.exe
    "C:\Users\Admin\AppData\Roaming\qse50.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4984

C:\Users\Admin\AppData\Roaming\qse50.exe
"C:\Users\Admin\AppData\Roaming\qse50.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3452

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

Network Service Discovery

T1046

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Protocol Tunneling

T1572

Exfiltration

Impact

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Downloads

tmp2B4C.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp2B4C.tmp.bat
Size 149B
SHA256 f654e9f7001d11c5091949279fa1155fa3b45ca155d9e295021c371d29985dbf
MD5 e92d2320320007823be50ac92f13ea5f
SHA1 d066fd478ec047de789c3048b472360299edf800
SHA512 0337001055322dec920049e25dd2688b06d6db398be5e2b6e5ec08065baae07f6318be1cda225d36960907c1f13751431382551fe4735950d7dc6fe490294889
TLSH
T106C08C8272C5AA1E2885142302FA948E91666C9D3E40FB408304841E6280448E0AA241
MD5 SHA1 SHA512 TLSH

Submit Download

qse50.exe

Path C:\Users\Admin\AppData\Roaming\qse50.exe
Size 45KB
SHA256 b91966ad03c0b6fb4c811477df70acbc4a14e72b7322aaf9436c01b573421fed
MD5 c706727bffc9e1713dd33d7a45eb9580
SHA1 ba08145e0b3974a1b938f3c2de0fbaa308f756e3
SHA512 05a472533d2979e8784a866a639687b31c1bae96ffe0c2bd8dc581ebd58f237f54f71d78e3470dd8323eeb3ea55d705c514626ed8e279e67752558dbeb5972ec
SSDEEP 768:MuLAZTnAkuSWUYzG8mo2qFPJXo5EayPI2zjbygX3ipFHxSpgLpgNmid1HoBDZEx:MuLAZTnbg2KQEab23b1XSp4u+HOdEx
TLSH
T1DC232B003BE8812BF2BE5F78ADF25105867AF5637603D55A2CC402D75B13BC6DA426FA
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3452-12-0x0000000074950000-0x000000007510C000-memory.dmp

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memory/3452-14-0x0000000074950000-0x000000007510C000-memory.dmp

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memory/4120-0-0x0000000074AD2000-0x0000000074AD3000-memory.dmp

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memory/4120-1-0x0000000000790000-0x00000000007A2000-memory.dmp

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memory/4120-2-0x0000000074AC0000-0x000000007527C000-memory.dmp

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memory/4120-3-0x0000000005280000-0x000000000531C000-memory.dmp

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memory/4120-8-0x0000000074AC0000-0x000000007527C000-memory.dmp

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