asyncrat | c7cf7947dbe18edfa61474e0cbf78b19a427d040047880b24b2493dad296e243

Analysis

max time kernel
119s
max time network
149s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
18-08-2024 01:54

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General

Target

2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe
Size

589KB
MD5

d53fc47751fa8ad0b613c489aa779bda
SHA1

ec14fabb10b9aa9f05344c03802294e114bb2af1
SHA256

2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea
SHA512

b6441aeff786d23401267f23960410614a2686e3d10b6f58c5e9042d7c2f48a4975383f2ec05cfc801faa39a3bbb6bb58161b5ec248252c89ab9bf6ef382e326
SSDEEP

12288:ToQyRAMIgF72A0ybuxRN750J4iWoM7+EgLHpP3V5Ua:uHIgF7Wybexo4iWoM7oHpP3TR

Score

10^/10

asyncrat reed discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

REED

bmh-global.myfirewall.org:15153

Mutex

2bL4M7bieVyn

Attributes

delay
10
install
true
install_file
windows manger.exe
install_folder
%Temp%

aes.plain

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
1480	windows manger.exe
2016	windows manger.exe

Loads dropped DLL 3 IoCs

pid	Process
2604	cmd.exe
2604	cmd.exe
1480	windows manger.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2628 set thread context of 2760	2628	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	31
PID 1480 set thread context of 2016	1480	windows manger.exe	40

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 8 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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	windows manger.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	windows manger.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3056	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
3060	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2760	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe
2760	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe
2760	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2760	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe
Token: SeDebugPrivilege	2016	windows manger.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 2628 wrote to memory of 2760	2628	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	31
PID 2628 wrote to memory of 2760	2628	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	31
PID 2628 wrote to memory of 2760	2628	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	31
PID 2628 wrote to memory of 2760	2628	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	31
PID 2628 wrote to memory of 2760	2628	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	31
PID 2628 wrote to memory of 2760	2628	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	31
PID 2628 wrote to memory of 2760	2628	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	31
PID 2628 wrote to memory of 2760	2628	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	31
PID 2628 wrote to memory of 2760	2628	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	31
PID 2760 wrote to memory of 2592	2760	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	33
PID 2760 wrote to memory of 2592	2760	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	33
PID 2760 wrote to memory of 2592	2760	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	33
PID 2760 wrote to memory of 2592	2760	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	33
PID 2760 wrote to memory of 2604	2760	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	35
PID 2760 wrote to memory of 2604	2760	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	35
PID 2760 wrote to memory of 2604	2760	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	35
PID 2760 wrote to memory of 2604	2760	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	35
PID 2592 wrote to memory of 3060	2592	cmd.exe	37
PID 2592 wrote to memory of 3060	2592	cmd.exe	37
PID 2592 wrote to memory of 3060	2592	cmd.exe	37
PID 2592 wrote to memory of 3060	2592	cmd.exe	37
PID 2604 wrote to memory of 3056	2604	cmd.exe	38
PID 2604 wrote to memory of 3056	2604	cmd.exe	38
PID 2604 wrote to memory of 3056	2604	cmd.exe	38
PID 2604 wrote to memory of 3056	2604	cmd.exe	38
PID 2604 wrote to memory of 1480	2604	cmd.exe	39
PID 2604 wrote to memory of 1480	2604	cmd.exe	39
PID 2604 wrote to memory of 1480	2604	cmd.exe	39
PID 2604 wrote to memory of 1480	2604	cmd.exe	39
PID 1480 wrote to memory of 2016	1480	windows manger.exe	40
PID 1480 wrote to memory of 2016	1480	windows manger.exe	40
PID 1480 wrote to memory of 2016	1480	windows manger.exe	40
PID 1480 wrote to memory of 2016	1480	windows manger.exe	40
PID 1480 wrote to memory of 2016	1480	windows manger.exe	40
PID 1480 wrote to memory of 2016	1480	windows manger.exe	40
PID 1480 wrote to memory of 2016	1480	windows manger.exe	40
PID 1480 wrote to memory of 2016	1480	windows manger.exe	40
PID 1480 wrote to memory of 2016	1480	windows manger.exe	40

C:\Users\Admin\AppData\Local\Temp\2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe
"C:\Users\Admin\AppData\Local\Temp\2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2628
- C:\Users\Admin\AppData\Local\Temp\2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe
  "C:\Users\Admin\AppData\Local\Temp\2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2760
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "windows manger" /tr '"C:\Users\Admin\AppData\Local\Temp\windows manger.exe"' & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2592
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "windows manger" /tr '"C:\Users\Admin\AppData\Local\Temp\windows manger.exe"'
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:3060
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp314D.tmp.bat""
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2604
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:3056
  - - C:\Users\Admin\AppData\Local\Temp\windows manger.exe
      "C:\Users\Admin\AppData\Local\Temp\windows manger.exe"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1480
    - - C:\Users\Admin\AppData\Local\Temp\windows manger.exe
        
        "C:\Users\Admin\AppData\Local\Temp\windows manger.exe"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:2016

Network

MITRE ATT&CK Enterprise v15

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

C:\Users\Admin\AppData\Local\Temp\Cab91A7.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp314D.tmp.bat

Filesize
161B

MD5
08840b6d1ebde782a24412b5edec8248

SHA1
29eb529223528191eb7e8388fbecd9f66b31e28b

SHA256
e0ffde62cc3ce4396e893706b6d5b1fdabee3579693d119c5565d39a6f6b08a6

SHA512
5fefb36bef0fcd02e66910eb207a923b65fa4d693ec852ba85eff4053e36e814d081fb334f844bd70e6e67f03fb4a7d7e3b8f0668546174b8ee7ba00334b5729

Download Submit
\Users\Admin\AppData\Local\Temp\windows manger.exe

Filesize
589KB

MD5
d53fc47751fa8ad0b613c489aa779bda

SHA1
ec14fabb10b9aa9f05344c03802294e114bb2af1

SHA256
2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea

SHA512
b6441aeff786d23401267f23960410614a2686e3d10b6f58c5e9042d7c2f48a4975383f2ec05cfc801faa39a3bbb6bb58161b5ec248252c89ab9bf6ef382e326

Download Submit
memory/1480-39-0x00000000003D0000-0x00000000003E6000-memory.dmp

Filesize
88KB

Download
memory/1480-38-0x00000000013C0000-0x0000000001458000-memory.dmp

Filesize
608KB

Download
memory/2016-52-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2016-49-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2016-54-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2628-6-0x00000000003E0000-0x00000000003F6000-memory.dmp

Filesize
88KB

Download
memory/2628-7-0x0000000005D00000-0x0000000005D54000-memory.dmp

Filesize
336KB

Download
memory/2628-3-0x0000000000A20000-0x0000000000A3E000-memory.dmp

Filesize
120KB

Download
memory/2628-4-0x0000000074DBE000-0x0000000074DBF000-memory.dmp

Filesize
4KB

Download
memory/2628-2-0x0000000074DB0000-0x000000007549E000-memory.dmp

Filesize
6.9MB

Download
memory/2628-5-0x0000000074DB0000-0x000000007549E000-memory.dmp

Filesize
6.9MB

Download
memory/2628-0-0x0000000074DBE000-0x0000000074DBF000-memory.dmp

Filesize
4KB

Download
memory/2628-1-0x0000000000CF0000-0x0000000000D88000-memory.dmp

Filesize
608KB

Download
memory/2628-20-0x0000000074DB0000-0x000000007549E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-19-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-22-0x0000000074DB0000-0x000000007549E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-23-0x0000000074DB0000-0x000000007549E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-21-0x0000000074DB0000-0x000000007549E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-33-0x0000000074DB0000-0x000000007549E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-17-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-10-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-12-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2760-15-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2760-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download