asyncrat | cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384

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, 00:21

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General

Target
cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
Size 45KB
Sample260804-anj2mszejb
SHA256 cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384
MD5 e456136be4dff939c21070d3609dfaca
SHA1 5e110eff676832f794ebf0d46bc443b7e81c8990
SHA512 91bdd4083b410e35871d1e183c88c94d3a662246a4bc994c5033bb774bcbe77e2051c1b1c447c989402b61464cf2f2ca8b2262941e0da2d373c1a3bac7acd5d0
SSDEEP 768:5udApTNctooWUS7C+mo2qtqhkTwJaOPIcozjbdg63iLPe/7gAT30jBDZ0x:5udApTNmU2s0w3co3bK6Sze/UJld0x
TLSH
T10A232B0037E9822BF2BF4F7898F26145867AF2637603E58A1CC441DB5613FC696426FE
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

vnsextop1.com:80
vnsextop1.com:22
vnsextop1.com:8080
vnsextop1.com:8880
vnsextop1.com:2052
vnsextop1.com:2082
vnsextop1.com:2086
vnsextop1.com:2095
vnsextop1.com:443
vnsextop1.com:2053
vnsextop1.com:2083
vnsextop1.com:2087
vnsextop1.com:2096
vnsextop1.com:8443
www.vnsextop1.com:80
www.vnsextop1.com:22
www.vnsextop1.com:8080
www.vnsextop1.com:8880
www.vnsextop1.com:2052
www.vnsextop1.com:2082
www.vnsextop1.com:2086
www.vnsextop1.com:2095
www.vnsextop1.com:443
www.vnsextop1.com:2053
www.vnsextop1.com:2083
www.vnsextop1.com:2087
www.vnsextop1.com:2096
www.vnsextop1.com:8443
notpetya.vnsextop1.com:80
notpetya.vnsextop1.com:22
notpetya.vnsextop1.com:8080
notpetya.vnsextop1.com:8880
notpetya.vnsextop1.com:2052
notpetya.vnsextop1.com:2082
notpetya.vnsextop1.com:2086
notpetya.vnsextop1.com:2095
notpetya.vnsextop1.com:443
notpetya.vnsextop1.com:2053
notpetya.vnsextop1.com:2083
notpetya.vnsextop1.com:2087
notpetya.vnsextop1.com:2096
notpetya.vnsextop1.com:8443
nimda.vnsextop1.com:80
nimda.vnsextop1.com:22
nimda.vnsextop1.com:8080
nimda.vnsextop1.com:8880
nimda.vnsextop1.com:2052
nimda.vnsextop1.com:2082
nimda.vnsextop1.com:2086
nimda.vnsextop1.com:2095
nimda.vnsextop1.com:443
nimda.vnsextop1.com:2053
nimda.vnsextop1.com:2083
nimda.vnsextop1.com:2087
nimda.vnsextop1.com:2096
nimda.vnsextop1.com:8443

Mutex

YB7glooCQSGG

Attributes

delay
0
install
true
install_file
ftuqin.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/0x001600000001c43a-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
2656	ftuqin.exe
5348	ftuqin.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	13	185.100.234.69:22
SSH destination	14	185.100.234.69:22

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
4740	cmd.exe
4272	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	ftuqin.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.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	ftuqin.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4636	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
3416	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
Token: SeDebugPrivilege	2656	ftuqin.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1216 wrote to memory of 4740	1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe	90
PID 1216 wrote to memory of 4272	1216	cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe	91
PID 4740 wrote to memory of 3416	4740	cmd.exe	94
PID 4272 wrote to memory of 4636	4272	cmd.exe	95
PID 4272 wrote to memory of 5348	4272	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe
"C:\Users\Admin\AppData\Local\Temp\cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "ftuqin" /tr '"C:\Users\Admin\AppData\Roaming\ftuqin.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4740
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "ftuqin" /tr '"C:\Users\Admin\AppData\Roaming\ftuqin.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3416
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA47.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4272
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4636
- - C:\Users\Admin\AppData\Roaming\ftuqin.exe
    "C:\Users\Admin\AppData\Roaming\ftuqin.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5348

C:\Users\Admin\AppData\Roaming\ftuqin.exe
"C:\Users\Admin\AppData\Roaming\ftuqin.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2656

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

tmpA47.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpA47.tmp.bat
Size 149B
SHA256 2502fc68ca073238ee5390196fb4a534791509e7d379ab2370544e896d680f56
MD5 3ced3ed0b8ea305f5acbc2b2ec281014
SHA1 cfd88c040c0aba90946eb5c20065b9413b8499ef
SHA512 a0900890156c7ccb116db8c430e67add80a1a270d02bd53d566d663eaa07efb0b17e9dfb0c8b89db3b42261c1c866c1b110aa21952141d91759c12b9179ab202
TLSH
T1AEC02B8361C5FE5E3806183302FED6CD91726D193F80BB40EB08402D56C045CF0DD341
MD5 SHA1 SHA512 TLSH

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ftuqin.exe

Path C:\Users\Admin\AppData\Roaming\ftuqin.exe
Size 45KB
SHA256 cbb923c435d1541692ec8b032ee3d9a75df21683fdeb960f5c81791fe023e384
MD5 e456136be4dff939c21070d3609dfaca
SHA1 5e110eff676832f794ebf0d46bc443b7e81c8990
SHA512 91bdd4083b410e35871d1e183c88c94d3a662246a4bc994c5033bb774bcbe77e2051c1b1c447c989402b61464cf2f2ca8b2262941e0da2d373c1a3bac7acd5d0
SSDEEP 768:5udApTNctooWUS7C+mo2qtqhkTwJaOPIcozjbdg63iLPe/7gAT30jBDZ0x:5udApTNmU2s0w3co3bK6Sze/UJld0x
TLSH
T10A232B0037E9822BF2BF4F7898F26145867AF2637603E58A1CC441DB5613FC696426FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1216-0-0x0000000074882000-0x0000000074883000-memory.dmp

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memory/1216-1-0x0000000000390000-0x00000000003A2000-memory.dmp

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memory/1216-2-0x0000000074870000-0x000000007502C000-memory.dmp

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memory/1216-3-0x0000000004DF0000-0x0000000004E8C000-memory.dmp

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memory/1216-8-0x0000000074870000-0x000000007502C000-memory.dmp

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memory/2656-12-0x0000000074700000-0x0000000074EBC000-memory.dmp

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memory/2656-14-0x0000000074700000-0x0000000074EBC000-memory.dmp

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