asyncrat | 5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c

Analysis

max time kernel
148s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260629-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
01/07/2026, 10:59

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General

Target
5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
Size 45KB
Sample260701-m3rfgsct2p
SHA256 5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c
MD5 6227b342ff0ac1d2f055d01f2973e6ab
SHA1 481415ae3d4ee06bba6aea31e9ab8db967c416a1
SHA512 04710fbf01b25efb3cdf5a10a4b11c33ea8dbb547c9a0977975cd0125f9b0f6acbd421dc9526e9c7d308e1426db5f0822c5807f9f5a54d487f080f9075b28761
SSDEEP 768:RuxkJTVmU5EkWUGMKSmo2q1zT2Qpm7PIGKjbHgX3ix0mOyfnzcmt5BDZcx:RuxkJTgip2heGGbAXSx0mOazc+ndcx
TLSH
T10C232B003BE8813BF2BE4B78ACF26145467AF6632603D54D6CC452DB5723BC68A426FD
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

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

Mutex

Njfj8ygEZBvS

Attributes

delay
0
install
true
install_file
7sui0z56.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/0x000d00000001c676-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
3748	7sui0z56.exe
6032	7sui0z56.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	7sui0z56.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7sui0z56.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.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

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
628	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
5352	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
Token: SeDebugPrivilege	3748	7sui0z56.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4432 wrote to memory of 1084	4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe	88
PID 4432 wrote to memory of 2144	4432	5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe	90
PID 1084 wrote to memory of 5352	1084	cmd.exe	92
PID 2144 wrote to memory of 628	2144	cmd.exe	93
PID 2144 wrote to memory of 6032	2144	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe
"C:\Users\Admin\AppData\Local\Temp\5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4432
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "7sui0z56" /tr '"C:\Users\Admin\AppData\Roaming\7sui0z56.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1084
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "7sui0z56" /tr '"C:\Users\Admin\AppData\Roaming\7sui0z56.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5352
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8A73.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2144
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:628
- - C:\Users\Admin\AppData\Roaming\7sui0z56.exe
    "C:\Users\Admin\AppData\Roaming\7sui0z56.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:6032

C:\Users\Admin\AppData\Roaming\7sui0z56.exe
"C:\Users\Admin\AppData\Roaming\7sui0z56.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3748

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

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Downloads

tmp8A73.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp8A73.tmp.bat
Size 152B
SHA256 0d3a0cd74d448d616d49544b090b26bd14736c6478b8896c1e06481c8ffa9d78
MD5 f3bad7cc43435d0343532b37ae904362
SHA1 5935adb12512199d0a85760ba171434e913bbb51
SHA512 07348841d56cba1fc9995cd8747c35e63636fcc1149cb28aed66bf0cf93ae26b0fee068768b9cd29806a4fcd25100639bcf79635434a3214d8e8d958d6a67d2a
TLSH
T196C08C8291C5EA9E2805642303BBA49DA26668993E84BB40930440191280458E0AA241
MD5 SHA1 SHA512 TLSH

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7sui0z56.exe

Path C:\Users\Admin\AppData\Roaming\7sui0z56.exe
Size 45KB
SHA256 5be552a45ec2cc088599ba48f2b2f80fb54b4032bd62a6eb44e08a815101949c
MD5 6227b342ff0ac1d2f055d01f2973e6ab
SHA1 481415ae3d4ee06bba6aea31e9ab8db967c416a1
SHA512 04710fbf01b25efb3cdf5a10a4b11c33ea8dbb547c9a0977975cd0125f9b0f6acbd421dc9526e9c7d308e1426db5f0822c5807f9f5a54d487f080f9075b28761
SSDEEP 768:RuxkJTVmU5EkWUGMKSmo2q1zT2Qpm7PIGKjbHgX3ix0mOyfnzcmt5BDZcx:RuxkJTgip2heGGbAXSx0mOazc+ndcx
TLSH
T10C232B003BE8813BF2BE4B78ACF26145467AF6632603D54D6CC452DB5723BC68A426FD
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3748-12-0x0000000074420000-0x0000000074BDC000-memory.dmp

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memory/3748-14-0x0000000074420000-0x0000000074BDC000-memory.dmp

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memory/4432-0-0x00000000745A2000-0x00000000745A3000-memory.dmp

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memory/4432-1-0x0000000000CE0000-0x0000000000CF2000-memory.dmp

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memory/4432-2-0x0000000074590000-0x0000000074D4C000-memory.dmp

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memory/4432-3-0x00000000057D0000-0x000000000586C000-memory.dmp

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memory/4432-8-0x0000000074590000-0x0000000074D4C000-memory.dmp

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