asyncrat | 31a67586badf7a157ca4e72a3e8ae20ab34ccaf52cbe8663921279220c8ea458

Analysis

max time kernel
24s
max time network
154s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
18/07/2026, 11:39

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
xlmb.exe
Size 45KB
Sample260718-nsf3fadv2t
SHA256 31a67586badf7a157ca4e72a3e8ae20ab34ccaf52cbe8663921279220c8ea458
MD5 fbc27ea34e9541a70559f98a364b943f
SHA1 77250352f5310db8f6943c519809681a7382f70d
SHA512 9b103017234f64b27f1c52866ffbbe2251c04acbd51081ffbc7c485348e1cc7356dca3a59122e0fe0d0c1b694284ea14d84ed331a841a7dc41a41adac705c202
SSDEEP 768:BupM9Tx5PWZZWUvfyRmo2qgopt0CCM+d4CvS8PIkejbhgX3id4p9+nvHQhQBDZjx:BupM9TxtOO2E/CFWBkSbOXSdG+vwhGdd
TLSH
T152231B003BE9816BF6BE4F7468F262454677F2732603D54D1C8451DB5A23FC68A43AEE
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

xoilacttbdwc2026c.tv:443
xoilacttbdwc2026c.tv:80
xoilacttbdwc2026c.tv:25
xoilacttbdwc2026c.tv:8443
konsorsiyum.io:443
konsorsiyum.io:80
konsorsiyum.io:25
konsorsiyum.io:8443
xoilacbongda-wc2026b.tv:443
xoilacbongda-wc2026b.tv:80
xoilacbongda-wc2026b.tv:25
xoilacbongda-wc2026b.tv:8443
xoilachd-worldcup2026b.tv:443
xoilachd-worldcup2026b.tv:80
xoilachd-worldcup2026b.tv:25
xoilachd-worldcup2026b.tv:8443

Mutex

Ud7RoH4lIaKX

Attributes

delay
9
install
true
install_file
xlmb.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/0x000e00000001c50d-11.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4840	xlmb.exe
3560	xlmb.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
5708	cmd.exe
4788	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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xlmb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xlmb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xlmb.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

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4600	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
248	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe
4312	xlmb.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4312	xlmb.exe
Token: SeDebugPrivilege	4840	xlmb.exe
Token: SeDebugPrivilege	4840	xlmb.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4312 wrote to memory of 5708	4312	xlmb.exe	90
PID 4312 wrote to memory of 4788	4312	xlmb.exe	92
PID 5708 wrote to memory of 248	5708	cmd.exe	94
PID 4788 wrote to memory of 4600	4788	cmd.exe	95
PID 4788 wrote to memory of 3560	4788	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\xlmb.exe
"C:\Users\Admin\AppData\Local\Temp\xlmb.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "xlmb" /tr '"C:\Users\Admin\AppData\Roaming\xlmb.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5708
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "xlmb" /tr '"C:\Users\Admin\AppData\Roaming\xlmb.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:248
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9292.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4788
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4600
- - C:\Users\Admin\AppData\Roaming\xlmb.exe
    "C:\Users\Admin\AppData\Roaming\xlmb.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3560

C:\Users\Admin\AppData\Roaming\xlmb.exe
"C:\Users\Admin\AppData\Roaming\xlmb.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4840

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:4496

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

Replay Monitor

Loading Replay Monitor...

Downloads

tmp9292.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp9292.tmp.bat
Size 148B
SHA256 be67d044f0984a9b972bd31a4429d170cae055da85ad129a09660161bf82b60f
MD5 6f1e2855076706d85c0fc5be80388feb
SHA1 887afa333cce3411d9841d3766abfce6246680f6
SHA512 6aeb4b5cca8702608a38046435028b9db1631e57e862b06bae697f55067e9a4c1c239ccf635639d154ad86a5dc01d21dded7cf86ca00ccf94713e597e0bc63f3
TLSH
T1BEC02BD391C5EA1E3805541347FAD48D91766C2D3F44BF60C304450D178084CF8EA381
MD5 SHA1 SHA512 TLSH

Submit Download

xlmb.exe

Path C:\Users\Admin\AppData\Roaming\xlmb.exe
Size 45KB
SHA256 31a67586badf7a157ca4e72a3e8ae20ab34ccaf52cbe8663921279220c8ea458
MD5 fbc27ea34e9541a70559f98a364b943f
SHA1 77250352f5310db8f6943c519809681a7382f70d
SHA512 9b103017234f64b27f1c52866ffbbe2251c04acbd51081ffbc7c485348e1cc7356dca3a59122e0fe0d0c1b694284ea14d84ed331a841a7dc41a41adac705c202
SSDEEP 768:BupM9Tx5PWZZWUvfyRmo2qgopt0CCM+d4CvS8PIkejbhgX3id4p9+nvHQhQBDZjx:BupM9TxtOO2E/CFWBkSbOXSdG+vwhGdd
TLSH
T152231B003BE9816BF6BE4F7468F262454677F2732603D54D1C8451DB5A23FC68A43AEE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4312-0-0x0000000074F52000-0x0000000074F53000-memory.dmp

Download

memory/4312-1-0x00000000008F0000-0x0000000000902000-memory.dmp

Download

memory/4312-2-0x0000000074F52000-0x0000000074F53000-memory.dmp

Download

memory/4312-3-0x0000000074F40000-0x00000000756FC000-memory.dmp

Download

memory/4312-4-0x00000000053E0000-0x000000000547C000-memory.dmp

Download

memory/4312-9-0x0000000074F40000-0x00000000756FC000-memory.dmp

Download

memory/4840-13-0x0000000074F40000-0x00000000756FC000-memory.dmp

Download

memory/4840-15-0x0000000074F40000-0x00000000756FC000-memory.dmp

Download