asyncrat | 9f1dfbc276787276503a968d81a95eb36cbc702e1b63389e3cc833d4a03c8bd9

Analysis

max time kernel
58s
max time network
57s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
06/03/2026, 12:53

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
dolarciao.it.exe
Size 45KB
Sample260306-p4mj2aft2m
SHA256 9f1dfbc276787276503a968d81a95eb36cbc702e1b63389e3cc833d4a03c8bd9
MD5 ae10013ab2ce9ff6c1be7e1ecb56dca2
SHA1 c02aaea107dcfd3b818d35fe7c1643cc9e6af4e9
SHA512 b336b6564c36eadca34a7359b1c2fd6185eff73a63248d280109d1a9f90a0cd707cf37dc7d6cd6ecfa9be150b75870072ed5d471ec1555ef5d879b06b599ef26
SSDEEP 768:ZuQiNTREhzxrWUXrm5mo2q7TZqWMF36VA0uTPI6zjb+gr3b/omii2srffZBDZrx:ZuQiNTR+W2Ata3Gu863bBrr/+9srf/dl
TLSH
T139231B003BE8812BF2BF4BB898F26145867AF1677603D98D1CC451DB5713BC69A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

dolarciao.it.com defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

dolarciao.it.com

dolarciao.it.com:80
dolarciao.it.com:8080
dolarciao.it.com:443
dolarciao.it.com:8443

Mutex

kpZsZqU4amCC

Attributes

delay
3
install
true
install_file
mko1.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x000500000002a648-9.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
2468	mko1.exe
2980	mko1.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	dolarciao.it.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	mko1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mko1.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
5544	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
2916	schtasks.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
3832	dolarciao.it.exe
3832	dolarciao.it.exe
3832	dolarciao.it.exe
3832	dolarciao.it.exe
3832	dolarciao.it.exe
3832	dolarciao.it.exe
3832	dolarciao.it.exe
3832	dolarciao.it.exe
3832	dolarciao.it.exe
3832	dolarciao.it.exe
3832	dolarciao.it.exe
3832	dolarciao.it.exe
3832	dolarciao.it.exe
3832	dolarciao.it.exe
3832	dolarciao.it.exe
3832	dolarciao.it.exe
3832	dolarciao.it.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3832	dolarciao.it.exe
Token: SeDebugPrivilege	2468	mko1.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3832 wrote to memory of 5700	3832	dolarciao.it.exe	78
PID 3832 wrote to memory of 5088	3832	dolarciao.it.exe	80
PID 5700 wrote to memory of 2916	5700	cmd.exe	82
PID 5088 wrote to memory of 5544	5088	cmd.exe	83
PID 5088 wrote to memory of 2980	5088	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\dolarciao.it.exe
"C:\Users\Admin\AppData\Local\Temp\dolarciao.it.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3832
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "mko1" /tr '"C:\Users\Admin\AppData\Roaming\mko1.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5700
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "mko1" /tr '"C:\Users\Admin\AppData\Roaming\mko1.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2916
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp1623.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5088
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:5544
- - C:\Users\Admin\AppData\Roaming\mko1.exe
    "C:\Users\Admin\AppData\Roaming\mko1.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2980

C:\Users\Admin\AppData\Roaming\mko1.exe
"C:\Users\Admin\AppData\Roaming\mko1.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2468

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

Replay Monitor

Loading Replay Monitor...

Downloads

tmp1623.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp1623.tmp.bat
Size 148B
SHA256 47d56129fcde825e9c7b35493a5b1abfd2d79fc3a168f6363b6ac6912879f28a
MD5 af8b0a074b9add126d7ab8dcdc9faec9
SHA1 b9acbce486072db01f60559fca5776a361ea74b3
SHA512 a98285022cf6eee26d62206f6e960c0ee7427ec49935b869f5a6f06101e4ee77d59007f2bb9794cb60b1a68bda2480cba3394283115d18eef8e5e7acae053757
TLSH
T183C02B5351C9EE4EAC09141306FAD4CC91726C5D3F40BB10C704400D57C0458F0EE341
MD5 SHA1 SHA512 TLSH

Submit Download

mko1.exe

Path C:\Users\Admin\AppData\Roaming\mko1.exe
Size 45KB
SHA256 9f1dfbc276787276503a968d81a95eb36cbc702e1b63389e3cc833d4a03c8bd9
MD5 ae10013ab2ce9ff6c1be7e1ecb56dca2
SHA1 c02aaea107dcfd3b818d35fe7c1643cc9e6af4e9
SHA512 b336b6564c36eadca34a7359b1c2fd6185eff73a63248d280109d1a9f90a0cd707cf37dc7d6cd6ecfa9be150b75870072ed5d471ec1555ef5d879b06b599ef26
SSDEEP 768:ZuQiNTREhzxrWUXrm5mo2q7TZqWMF36VA0uTPI6zjb+gr3b/omii2srffZBDZrx:ZuQiNTR+W2Ata3Gu863bBrr/+9srf/dl
TLSH
T139231B003BE8812BF2BF4BB898F26145867AF1677603D98D1CC451DB5713BC69A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2468-15-0x00000000009C0000-0x00000000009E5000-memory.dmp

Download

memory/2468-16-0x0000000000D50000-0x0000000000D5B000-memory.dmp

Download

memory/2980-13-0x0000000000B40000-0x0000000000B65000-memory.dmp

Download

memory/2980-14-0x0000000004DB0000-0x0000000004DBB000-memory.dmp

Download

memory/3832-0-0x0000000000EB0000-0x0000000000EC2000-memory.dmp

Download

memory/3832-1-0x0000000005990000-0x00000000059A0000-memory.dmp

Download

memory/3832-2-0x0000000005A40000-0x0000000005ADC000-memory.dmp

Download

memory/3832-7-0x0000000001770000-0x0000000001795000-memory.dmp

Download