asyncrat | c7cf7947dbe18edfa61474e0cbf78b19a427d040047880b24b2493dad296e243

Analysis

max time kernel
46s
max time network
143s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
18/08/2024, 05:16

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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
2376	windows manger.exe
2720	windows manger.exe

Loads dropped DLL 3 IoCs

pid	Process
1052	cmd.exe
1052	cmd.exe
2376	windows manger.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1956 set thread context of 2728	1956	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	29
PID 2376 set thread context of 2720	2376	windows manger.exe	38

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.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
836	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
896	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2728	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2728	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe
Token: SeDebugPrivilege	2720	windows manger.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 2728	1956	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	29
PID 1956 wrote to memory of 2728	1956	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	29
PID 1956 wrote to memory of 2728	1956	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	29
PID 1956 wrote to memory of 2728	1956	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	29
PID 1956 wrote to memory of 2728	1956	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	29
PID 1956 wrote to memory of 2728	1956	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	29
PID 1956 wrote to memory of 2728	1956	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	29
PID 1956 wrote to memory of 2728	1956	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	29
PID 1956 wrote to memory of 2728	1956	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	29
PID 2728 wrote to memory of 2696	2728	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	31
PID 2728 wrote to memory of 2696	2728	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	31
PID 2728 wrote to memory of 2696	2728	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	31
PID 2728 wrote to memory of 2696	2728	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	31
PID 2728 wrote to memory of 1052	2728	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	33
PID 2728 wrote to memory of 1052	2728	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	33
PID 2728 wrote to memory of 1052	2728	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	33
PID 2728 wrote to memory of 1052	2728	2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea.exe	33
PID 2696 wrote to memory of 896	2696	cmd.exe	35
PID 2696 wrote to memory of 896	2696	cmd.exe	35
PID 2696 wrote to memory of 896	2696	cmd.exe	35
PID 2696 wrote to memory of 896	2696	cmd.exe	35
PID 1052 wrote to memory of 836	1052	cmd.exe	36
PID 1052 wrote to memory of 836	1052	cmd.exe	36
PID 1052 wrote to memory of 836	1052	cmd.exe	36
PID 1052 wrote to memory of 836	1052	cmd.exe	36
PID 1052 wrote to memory of 2376	1052	cmd.exe	37
PID 1052 wrote to memory of 2376	1052	cmd.exe	37
PID 1052 wrote to memory of 2376	1052	cmd.exe	37
PID 1052 wrote to memory of 2376	1052	cmd.exe	37
PID 2376 wrote to memory of 2720	2376	windows manger.exe	38
PID 2376 wrote to memory of 2720	2376	windows manger.exe	38
PID 2376 wrote to memory of 2720	2376	windows manger.exe	38
PID 2376 wrote to memory of 2720	2376	windows manger.exe	38
PID 2376 wrote to memory of 2720	2376	windows manger.exe	38
PID 2376 wrote to memory of 2720	2376	windows manger.exe	38
PID 2376 wrote to memory of 2720	2376	windows manger.exe	38
PID 2376 wrote to memory of 2720	2376	windows manger.exe	38
PID 2376 wrote to memory of 2720	2376	windows manger.exe	38

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:1956
- 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:2728
- - 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:2696
  - - 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:896
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp8BCB.tmp.bat""
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1052
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:836
  - - 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:2376
    - - 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:2720

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\CabEC54.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8BCB.tmp.bat

Filesize
161B

MD5
e83116086b17d855d63a6a5a59f3a98c

SHA1
47de172df97750dca519db97eb526517d19c2dd8

SHA256
3c04307d3d485b3a261934939e53d995b2766770ebc563c96e4490a11ff0b593

SHA512
1e670aceb9847b5c70b74ce75b43b2c9b5e26a409d5178a38dfefcdacbb9f706aa1a00f83800e2ca9339f5e958e47c4ec8f55b15e8a1e1f7f29614a39f331f57

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

Filesize
589KB

MD5
d53fc47751fa8ad0b613c489aa779bda

SHA1
ec14fabb10b9aa9f05344c03802294e114bb2af1

SHA256
2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea

SHA512
b6441aeff786d23401267f23960410614a2686e3d10b6f58c5e9042d7c2f48a4975383f2ec05cfc801faa39a3bbb6bb58161b5ec248252c89ab9bf6ef382e326

Download Submit
memory/1956-22-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/1956-3-0x0000000000480000-0x000000000049E000-memory.dmp

Filesize
120KB

Download
memory/1956-5-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/1956-6-0x00000000002D0000-0x00000000002E6000-memory.dmp

Filesize
88KB

Download
memory/1956-7-0x0000000000CC0000-0x0000000000D14000-memory.dmp

Filesize
336KB

Download
memory/1956-1-0x0000000000D60000-0x0000000000DF8000-memory.dmp

Filesize
608KB

Download
memory/1956-4-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/1956-0-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/1956-2-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2376-39-0x0000000000060000-0x00000000000F8000-memory.dmp

Filesize
608KB

Download
memory/2720-54-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2720-52-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2720-49-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-20-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2728-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2728-24-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-23-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-10-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2728-34-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2728-21-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-12-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2728-18-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2728-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-16-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download