asyncrat | 75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c

Analysis

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

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
16/08/2026, 12:15

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General

Target
75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
Size 45KB
Sample260816-pe2mnaxdkh
SHA256 75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c
MD5 e6e9ee981e3996852ce00bd41aded9e2
SHA1 1af62e732628b418e276461ce1ec2c53053ac2ac
SHA512 7f783df8f94ef8ac3f302c631058450b34d4df9ba82a5f9e0bf3e1d6ac3911dfa39aae1cdc843896735ab5e661c58e89633a9d6cd3d102722bc639a43aae107b
SSDEEP 768:wuDWZTpw7bmaWUg3gSk0mo2qlyNd3u40cMOPI08zjbQgXw8ipin1jF088TC/DKgu:wuDWZTpMZSB258+M3083bXX6piQ8Be28
TLSH
T1DF232A003BE8822BF2BE5F7898F26105867AF6732603D54E1CC4519B5613FC6DA526FE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default command_and_control defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

zorvec.name:80
zorvec.name:22
zorvec.name:8080
zorvec.name:8880
zorvec.name:2052
zorvec.name:2082
zorvec.name:2086
zorvec.name:2095
zorvec.name:443
zorvec.name:2053
zorvec.name:2083
zorvec.name:2087
zorvec.name:2096
zorvec.name:8443
www.zorvec.name:80
www.zorvec.name:22
www.zorvec.name:8080
www.zorvec.name:8880
www.zorvec.name:2052
www.zorvec.name:2082
www.zorvec.name:2086
www.zorvec.name:2095
www.zorvec.name:443
www.zorvec.name:2053
www.zorvec.name:2083
www.zorvec.name:2087
www.zorvec.name:2096
www.zorvec.name:8443
malware.zorvec.name:80
malware.zorvec.name:22
malware.zorvec.name:8080
malware.zorvec.name:8880
malware.zorvec.name:2052
malware.zorvec.name:2082
malware.zorvec.name:2086
malware.zorvec.name:2095
malware.zorvec.name:443
malware.zorvec.name:2053
malware.zorvec.name:2083
malware.zorvec.name:2087
malware.zorvec.name:2096
malware.zorvec.name:8443
nimda.zorvec.name:80
nimda.zorvec.name:22
nimda.zorvec.name:8080
nimda.zorvec.name:8880
nimda.zorvec.name:2052
nimda.zorvec.name:2082
nimda.zorvec.name:2086
nimda.zorvec.name:2095
nimda.zorvec.name:443
nimda.zorvec.name:2053
nimda.zorvec.name:2083
nimda.zorvec.name:2087
nimda.zorvec.name:2096
nimda.zorvec.name:8443

Mutex

HocyABsIOabg

Attributes

delay
0
install
true
install_file
b7nwp.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/0x000a000000000441-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
2804	b7nwp.exe
3328	b7nwp.exe

Outbound SSH connection to public host 2 TTPs 2 IoCs

SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

command_and_control

Protocol Tunneling

T1572

Network Service Discovery

T1046

description	flow	ioc
SSH destination	17	172.67.144.58:22
SSH destination	18	104.21.28.44:22

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
4644	cmd.exe
2580	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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b7nwp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b7nwp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4560	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
5492	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
Token: SeDebugPrivilege	2804	b7nwp.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5032 wrote to memory of 4644	5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe	90
PID 5032 wrote to memory of 2580	5032	75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe	92
PID 2580 wrote to memory of 4560	2580	cmd.exe	94
PID 4644 wrote to memory of 5492	4644	cmd.exe	95
PID 2580 wrote to memory of 3328	2580	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe
"C:\Users\Admin\AppData\Local\Temp\75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5032
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "b7nwp" /tr '"C:\Users\Admin\AppData\Roaming\b7nwp.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4644
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "b7nwp" /tr '"C:\Users\Admin\AppData\Roaming\b7nwp.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5492
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9282.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2580
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4560
- - C:\Users\Admin\AppData\Roaming\b7nwp.exe
    "C:\Users\Admin\AppData\Roaming\b7nwp.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3328

C:\Users\Admin\AppData\Roaming\b7nwp.exe
"C:\Users\Admin\AppData\Roaming\b7nwp.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2804

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

Network Service Discovery

T1046

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Protocol Tunneling

T1572

Exfiltration

Impact

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Downloads

tmp9282.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp9282.tmp.bat
Size 149B
SHA256 c12bc42dcfb2cf9e2297fb011e014630d50db494a3383f386614bd848febbfab
MD5 032f5fd16a35da57428092af2d42f8b4
SHA1 6f3fc4cef6a31bdd8335259f25e0c5c9a6ad5b8e
SHA512 798927ce361bf8f1943863142131aa462f9f2cc8638e497e8b3f2996b2676a9cc4b6931f3b355ecee989bfb0262e56734aba436a60fca4e8d1a1b3839af92c7a
TLSH
T18AC02B8361C9EA0E2C0914130FFBD48D91766C193F48FB10C304404E238085CF4E9385
MD5 SHA1 SHA512 TLSH

Submit Download

b7nwp.exe

Path C:\Users\Admin\AppData\Roaming\b7nwp.exe
Size 45KB
SHA256 75aa832cc72a3324e69f2f7bf04270197c045136563eb203c6c053509adabf3c
MD5 e6e9ee981e3996852ce00bd41aded9e2
SHA1 1af62e732628b418e276461ce1ec2c53053ac2ac
SHA512 7f783df8f94ef8ac3f302c631058450b34d4df9ba82a5f9e0bf3e1d6ac3911dfa39aae1cdc843896735ab5e661c58e89633a9d6cd3d102722bc639a43aae107b
SSDEEP 768:wuDWZTpw7bmaWUg3gSk0mo2qlyNd3u40cMOPI08zjbQgXw8ipin1jF088TC/DKgu:wuDWZTpMZSB258+M3083bXX6piQ8Be28
TLSH
T1DF232A003BE8822BF2BE5F7898F26105867AF6732603D54E1CC4519B5613FC6DA526FE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2804-12-0x00000000749A0000-0x000000007515C000-memory.dmp

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memory/2804-14-0x00000000749A0000-0x000000007515C000-memory.dmp

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memory/5032-0-0x0000000074A12000-0x0000000074A13000-memory.dmp

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memory/5032-1-0x0000000000E30000-0x0000000000E42000-memory.dmp

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memory/5032-2-0x0000000074A00000-0x00000000751BC000-memory.dmp

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memory/5032-3-0x0000000005A00000-0x0000000005A9C000-memory.dmp

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memory/5032-8-0x0000000074A00000-0x00000000751BC000-memory.dmp

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