asyncrat | 36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840

Analysis

max time kernel
6s
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
01/08/2026, 15:57

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General

Target
36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
Size 45KB
Sample260801-teaamacq2w
SHA256 36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840
MD5 e1ca27cbc4ee25b5d26bc82cc98d3a51
SHA1 ffebe485a10f50e7a97d60e4910a3ff2bfc78289
SHA512 7a896559319d640a2ba3d1e44c140291f257767c43bc860590ce3b6b167602be673783cd89ac7792f02007b263bacafe3fcd29f40162c633ab258b7cf80f105b
SSDEEP 768:5udApTNctooWUS7C+mo2qt5HO9YjoHPICYzjbSgX3iu05gzqvkFqHhOcLJBDZ0x:5udApTNmU2Z6kgCY3bVXSn6zyUSh3Ld2
TLSH
T1F6232A003BE8C12BF2BE4F78A9F26145867AF6633902D54D1CC451974623FC69A52AFE
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

phimdugai.blog:80
phimdugai.blog:22
phimdugai.blog:8080
phimdugai.blog:8880
phimdugai.blog:2052
phimdugai.blog:2082
phimdugai.blog:2086
phimdugai.blog:2095
phimdugai.blog:443
phimdugai.blog:2053
phimdugai.blog:2083
phimdugai.blog:2087
phimdugai.blog:2096
phimdugai.blog:8443
www.phimdugai.blog:80
www.phimdugai.blog:22
www.phimdugai.blog:8080
www.phimdugai.blog:8880
www.phimdugai.blog:2052
www.phimdugai.blog:2082
www.phimdugai.blog:2086
www.phimdugai.blog:2095
www.phimdugai.blog:443
www.phimdugai.blog:2053
www.phimdugai.blog:2083
www.phimdugai.blog:2087
www.phimdugai.blog:2096
www.phimdugai.blog:8443
invasive.phimdugai.blog:80
invasive.phimdugai.blog:22
invasive.phimdugai.blog:8080
invasive.phimdugai.blog:8880
invasive.phimdugai.blog:2052
invasive.phimdugai.blog:2082
invasive.phimdugai.blog:2086
invasive.phimdugai.blog:2095
invasive.phimdugai.blog:443
invasive.phimdugai.blog:2053
invasive.phimdugai.blog:2083
invasive.phimdugai.blog:2087
invasive.phimdugai.blog:2096
invasive.phimdugai.blog:8443
client.phimdugai.blog:80
client.phimdugai.blog:22
client.phimdugai.blog:8080
client.phimdugai.blog:8880
client.phimdugai.blog:2052
client.phimdugai.blog:2082
client.phimdugai.blog:2086
client.phimdugai.blog:2095
client.phimdugai.blog:443
client.phimdugai.blog:2053
client.phimdugai.blog:2083
client.phimdugai.blog:2087
client.phimdugai.blog:2096
client.phimdugai.blog:8443

Mutex

pIMYjNAX1MWL

Attributes

delay
0
install
true
install_file
josbrz.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/0x000e00000001c521-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
1668	josbrz.exe
5996	josbrz.exe

Outbound SSH connection to public host 2 TTPs 3 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	104.21.56.197:22
SSH destination	14	172.67.187.216:22
SSH destination	22	104.21.56.197:22

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
2316	cmd.exe
360	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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	josbrz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	josbrz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
1760	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
2832	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
Token: SeDebugPrivilege	1668	josbrz.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 552 wrote to memory of 2316	552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe	89
PID 552 wrote to memory of 360	552	36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe	91
PID 2316 wrote to memory of 2832	2316	cmd.exe	93
PID 360 wrote to memory of 1760	360	cmd.exe	94
PID 360 wrote to memory of 5996	360	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe
"C:\Users\Admin\AppData\Local\Temp\36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:552
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "josbrz" /tr '"C:\Users\Admin\AppData\Roaming\josbrz.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2316
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "josbrz" /tr '"C:\Users\Admin\AppData\Roaming\josbrz.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2832
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp769D.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:360
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:1760
- - C:\Users\Admin\AppData\Roaming\josbrz.exe
    "C:\Users\Admin\AppData\Roaming\josbrz.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5996

C:\Users\Admin\AppData\Roaming\josbrz.exe
"C:\Users\Admin\AppData\Roaming\josbrz.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1668

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

tmp769D.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp769D.tmp.bat
Size 150B
SHA256 e0055e4a1cadabf07e0ee82dafb0185d6a719230b35b52a60c4b61725bebc1a0
MD5 615976bb4842ce282d093b22cdb9a1ca
SHA1 20280cffc2afde2352419af796bcb0412e1527b7
SHA512 bde4935b1d5a8486f984b03844d019915da3da35468afe90750211ff35e8f3b6ef6ae6c652258bbe945dfe706fc7a098a80244af9b537a59cdffcc428a41da6e
TLSH
T1F3C02B4251C9FA1F2805D41302FAD4CD92726C5D3F80BB41C314400D12C145CFCDB345
MD5 SHA1 SHA512 TLSH

Submit Download

josbrz.exe

Path C:\Users\Admin\AppData\Roaming\josbrz.exe
Size 45KB
SHA256 36432ac47dafb10a714c99bd8dbdaa34a88d7490af8d2ff9af869c0f8500e840
MD5 e1ca27cbc4ee25b5d26bc82cc98d3a51
SHA1 ffebe485a10f50e7a97d60e4910a3ff2bfc78289
SHA512 7a896559319d640a2ba3d1e44c140291f257767c43bc860590ce3b6b167602be673783cd89ac7792f02007b263bacafe3fcd29f40162c633ab258b7cf80f105b
SSDEEP 768:5udApTNctooWUS7C+mo2qt5HO9YjoHPICYzjbSgX3iu05gzqvkFqHhOcLJBDZ0x:5udApTNmU2Z6kgCY3bVXSn6zyUSh3Ld2
TLSH
T1F6232A003BE8C12BF2BE4F78A9F26145867AF6633902D54D1CC451974623FC69A52AFE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/552-0-0x00000000749B2000-0x00000000749B3000-memory.dmp

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memory/552-1-0x00000000008C0000-0x00000000008D2000-memory.dmp

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memory/552-2-0x00000000749A0000-0x000000007515C000-memory.dmp

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memory/552-3-0x0000000005430000-0x00000000054CC000-memory.dmp

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memory/552-9-0x00000000749A0000-0x000000007515C000-memory.dmp

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memory/1668-12-0x00000000749A0000-0x000000007515C000-memory.dmp

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memory/1668-14-0x00000000749A0000-0x000000007515C000-memory.dmp

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