asyncrat | 359a07dff1e5dcebdb070436cd3fd53f67f4a9225b8cc473612995912deeb67b

Analysis

max time kernel
150s
max time network
148s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
10/07/2026, 02:37

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General

Target
bin.exe
Size 45KB
Sample260710-c4d7fadt41
SHA256 359a07dff1e5dcebdb070436cd3fd53f67f4a9225b8cc473612995912deeb67b
MD5 91a5a9727b9e492f3ac85b634abc04ae
SHA1 3b39443a1d399594ba5ede23e3663013c8dcd9d0
SHA512 2bf523571bb86322a1aca338bec47f5836d2de547d1ba39ca2d1cbdc0264c771d256f4b9b5eb3c540231e9f006b46c82a7dd352edde8867247039d312898f70d
SSDEEP 768:BuSQNT3ol7xWUpv+7mo2qLaUPB+lOOFPIwzjbzgX3ivNcE2tv9BDZ3x:BuSQNT3Ku2NiUOOCw3bsXSvuPtLd3x
TLSH
T140232B003BEC812BF2BE4F78A9F26145467AE2673603D6491CC452DB5713FC69A426FE
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

securabyte.io:443
securabyte.io:80
securabyte.io:25
securabyte.io:8443
thespring.io:443
thespring.io:80
thespring.io:25
thespring.io:8443
pjw.io:443
pjw.io:80
pjw.io:25
pjw.io:8443

Mutex

WZQ6sJmNOgTi

Attributes

delay
9
install
true
install_file
bin.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/0x000d00000001c5aa-11.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
244	bin.exe
5060	bin.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	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	bin.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bin.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bin.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
1892	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
4572	schtasks.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe
2820	bin.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2820	bin.exe
Token: SeDebugPrivilege	244	bin.exe
Token: SeDebugPrivilege	244	bin.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 3156	2820	bin.exe	87
PID 2820 wrote to memory of 3292	2820	bin.exe	89
PID 3156 wrote to memory of 4572	3156	cmd.exe	91
PID 3292 wrote to memory of 1892	3292	cmd.exe	93
PID 3292 wrote to memory of 5060	3292	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\bin.exe
"C:\Users\Admin\AppData\Local\Temp\bin.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "bin" /tr '"C:\Users\Admin\AppData\Roaming\bin.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3156
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "bin" /tr '"C:\Users\Admin\AppData\Roaming\bin.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4572
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6095.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3292
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:1892
- - C:\Users\Admin\AppData\Roaming\bin.exe
    "C:\Users\Admin\AppData\Roaming\bin.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5060

C:\Users\Admin\AppData\Roaming\bin.exe
"C:\Users\Admin\AppData\Roaming\bin.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:244

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

tmp6095.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp6095.tmp.bat
Size 147B
SHA256 aa856c6ccec8d07169fd53dcae2b845d0ca1cda13413891e0a77919e3b0500a8
MD5 e04778b3ef9221b4aae386709043448f
SHA1 b216d0eb74b65b0cfff33de8c5e8f27c3fd9efe4
SHA512 c2688fe14a5bea65b93c487283abafaa9834a6c34b44e85d4a3f0dd3b94dddb979be671c7f68d62d357f904451e99070070a76c0b1e23057480b970b9e993cf8
TLSH
T165C08C4251C5AA0E780A141302BA968C91726C293E80BB008304415A1680488E099341
MD5 SHA1 SHA512 TLSH

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bin.exe

Path C:\Users\Admin\AppData\Roaming\bin.exe
Size 45KB
SHA256 359a07dff1e5dcebdb070436cd3fd53f67f4a9225b8cc473612995912deeb67b
MD5 91a5a9727b9e492f3ac85b634abc04ae
SHA1 3b39443a1d399594ba5ede23e3663013c8dcd9d0
SHA512 2bf523571bb86322a1aca338bec47f5836d2de547d1ba39ca2d1cbdc0264c771d256f4b9b5eb3c540231e9f006b46c82a7dd352edde8867247039d312898f70d
SSDEEP 768:BuSQNT3ol7xWUpv+7mo2qLaUPB+lOOFPIwzjbzgX3ivNcE2tv9BDZ3x:BuSQNT3Ku2NiUOOCw3bsXSvuPtLd3x
TLSH
T140232B003BEC812BF2BE4F78A9F26145467AE2673603D6491CC452DB5713FC69A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/244-13-0x0000000074540000-0x0000000074CFC000-memory.dmp

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memory/244-15-0x0000000074540000-0x0000000074CFC000-memory.dmp

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memory/2820-0-0x00000000746C2000-0x00000000746C3000-memory.dmp

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memory/2820-1-0x00000000000B0000-0x00000000000C2000-memory.dmp

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memory/2820-2-0x00000000746C2000-0x00000000746C3000-memory.dmp

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memory/2820-3-0x00000000746B0000-0x0000000074E6C000-memory.dmp

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memory/2820-4-0x0000000004B60000-0x0000000004BFC000-memory.dmp

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memory/2820-9-0x00000000746B0000-0x0000000074E6C000-memory.dmp

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