asyncrat | 739db90c62fda64ddf9fd417dfe030476ef0494f83d9e90aa1159e859d3f4322

Analysis

max time kernel
60s
max time network
23s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/11/2026, 19:36

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General

Target
739db90c62fda64ddf9fd417dfe030476ef0494f83d9e90aa1159e859d3f4322.exe
Size 56KB
Sample261102-ybfepaez4n
SHA256 739db90c62fda64ddf9fd417dfe030476ef0494f83d9e90aa1159e859d3f4322
MD5 48329738faad983c1be963f78345bada
SHA1 e8841a5f85e6f5ce40936c7aed313d01061bced5
SHA512 e0d677118422e8427202653378e03f575636317c45eac14dac0adb50f88f745bdcd435e35a2df664b9ca4e52205cc784875aa0fd441de6bcbe515e44e2e0b34a
SSDEEP 1536:p+Tydj7EwPrbcXfDKVmV8u0kejNUHLi/:ITy28rbcrKVmf0kINX/
TLSH
T1AB435B043BE8812BF2BE4B7999F211448BB9E2672103DA9D1CD051DB5A13FC5DA436FA
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default discovery asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

f8bet11h.online:443
f8bet11h.online:8848
f8bet11h.online:8080

Mutex

tnItZRPvsahz

Attributes

delay
3
install
true
install_file
ActiveWindow.exe
install_folder
%AppData%

aes.plain

Signatures

Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1284	4820	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 1 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	739db90c62fda64ddf9fd417dfe030476ef0494f83d9e90aa1159e859d3f4322.exe

C:\Users\Admin\AppData\Local\Temp\739db90c62fda64ddf9fd417dfe030476ef0494f83d9e90aa1159e859d3f4322.exe
"C:\Users\Admin\AppData\Local\Temp\739db90c62fda64ddf9fd417dfe030476ef0494f83d9e90aa1159e859d3f4322.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4820
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4820 -s 800
  2⤵
  - Program crash
  PID:1284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 396 -p 4820 -ip 4820
1⤵
PID:836

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4820-0-0x0000000074FB2000-0x0000000074FB3000-memory.dmp

Download

memory/4820-1-0x0000000000970000-0x0000000000984000-memory.dmp