asyncrat | 212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498

Analysis

max time kernel
150s
max time network
154s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
22/07/2026, 11:22

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General

Target
212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
Size 45KB
Sample260722-ngjzysteld
SHA256 212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498
MD5 0a8be6b05bebf8744c338b8772fb7e8b
SHA1 2ac7610f80614ffcf278a338250f159e4ea1e86f
SHA512 1bae5296cc71f8ad0a8d6ed5d9697022cdba65c42436ee0238aeb27de779188c1a96ff3c4608c46b637bd0889363a96b14968357ed50678a66b9a1442237b07b
SSDEEP 768:cuR0JTPUYkEWUmjWymo2q1ucP0pycvHPIjzjbwgX3i/UxydMleGBDZUx:cuR0JTPjY29ccMcvgj3b3XSZqkIdUx
TLSH
T10F231A003BE8813BF2BE4F78A9F22145467BF6632603D6491CC4519B5623FC6DA926FD
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

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

Mutex

ic50jjnq6OwI

Attributes

delay
0
install
true
install_file
hwsz.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/0x000d00000001c5b6-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
2240	hwsz.exe
1276	hwsz.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
1124	cmd.exe
5588	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	hwsz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.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	hwsz.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3240	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
3792	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
Token: SeDebugPrivilege	2240	hwsz.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4496 wrote to memory of 1124	4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe	89
PID 4496 wrote to memory of 5588	4496	212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe	90
PID 1124 wrote to memory of 3792	1124	cmd.exe	93
PID 5588 wrote to memory of 3240	5588	cmd.exe	94
PID 5588 wrote to memory of 1276	5588	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe
"C:\Users\Admin\AppData\Local\Temp\212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4496
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "hwsz" /tr '"C:\Users\Admin\AppData\Roaming\hwsz.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1124
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "hwsz" /tr '"C:\Users\Admin\AppData\Roaming\hwsz.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3792
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp24C4.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5588
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3240
- - C:\Users\Admin\AppData\Roaming\hwsz.exe
    "C:\Users\Admin\AppData\Roaming\hwsz.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1276

C:\Users\Admin\AppData\Roaming\hwsz.exe
"C:\Users\Admin\AppData\Roaming\hwsz.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2240

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

tmp24C4.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp24C4.tmp.bat
Size 148B
SHA256 b55d8b65142049045a75d73450e363d63cd0340d78dcc77dc836dec41988c629
MD5 8885f7809003fbb670a6e02b8dd604ce
SHA1 8fb4a9526325e9cdb47b50f15494762390cb81ff
SHA512 580dfa9b4748b68f9f27cbe747694915f1f196766e6cef0216ae6c3e687b56c068c02357d7621ad87672cd02f526de412107220714d88bfd5534b7a3a1ef4a9c
TLSH
T1E6C08C4266C5AA5E6805241302FAD48E91B269193E44AB408304804E5280458E099245
MD5 SHA1 SHA512 TLSH

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hwsz.exe

Path C:\Users\Admin\AppData\Roaming\hwsz.exe
Size 45KB
SHA256 212fcc10cad0d0d2a991980424035e28e59004b10b1e77ecda1e69649b729498
MD5 0a8be6b05bebf8744c338b8772fb7e8b
SHA1 2ac7610f80614ffcf278a338250f159e4ea1e86f
SHA512 1bae5296cc71f8ad0a8d6ed5d9697022cdba65c42436ee0238aeb27de779188c1a96ff3c4608c46b637bd0889363a96b14968357ed50678a66b9a1442237b07b
SSDEEP 768:cuR0JTPUYkEWUmjWymo2q1ucP0pycvHPIjzjbwgX3i/UxydMleGBDZUx:cuR0JTPjY29ccMcvgj3b3XSZqkIdUx
TLSH
T10F231A003BE8813BF2BE4F78A9F22145467BF6632603D6491CC4519B5623FC6DA926FD
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2240-12-0x0000000074F20000-0x00000000756DC000-memory.dmp

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memory/2240-14-0x0000000074F20000-0x00000000756DC000-memory.dmp

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memory/4496-0-0x00000000750A2000-0x00000000750A3000-memory.dmp

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memory/4496-1-0x0000000000560000-0x0000000000572000-memory.dmp

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memory/4496-2-0x0000000075090000-0x000000007584C000-memory.dmp

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memory/4496-3-0x00000000050C0000-0x000000000515C000-memory.dmp

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memory/4496-8-0x0000000075090000-0x000000007584C000-memory.dmp

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