asyncrat | 2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea

Analysis

max time kernel
121s
max time network
142s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
16-08-2024 15:38

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General

Target

Quotation PO 11109.pdf.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
1232	windows manger.exe
1664	windows manger.exe

Loads dropped DLL 3 IoCs

pid	Process
2740	cmd.exe
2740	cmd.exe
1232	windows manger.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2584 set thread context of 1656	2584	Quotation PO 11109.pdf.exe	31
PID 1232 set thread context of 1664	1232	windows manger.exe	41

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	Quotation PO 11109.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation PO 11109.pdf.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	cmd.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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3068	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
2204	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2584	Quotation PO 11109.pdf.exe
2584	Quotation PO 11109.pdf.exe
1656	Quotation PO 11109.pdf.exe
1656	Quotation PO 11109.pdf.exe
1656	Quotation PO 11109.pdf.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2584	Quotation PO 11109.pdf.exe
Token: SeDebugPrivilege	1656	Quotation PO 11109.pdf.exe
Token: SeDebugPrivilege	1664	windows manger.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 2520	2584	Quotation PO 11109.pdf.exe	30
PID 2584 wrote to memory of 2520	2584	Quotation PO 11109.pdf.exe	30
PID 2584 wrote to memory of 2520	2584	Quotation PO 11109.pdf.exe	30
PID 2584 wrote to memory of 2520	2584	Quotation PO 11109.pdf.exe	30
PID 2584 wrote to memory of 1656	2584	Quotation PO 11109.pdf.exe	31
PID 2584 wrote to memory of 1656	2584	Quotation PO 11109.pdf.exe	31
PID 2584 wrote to memory of 1656	2584	Quotation PO 11109.pdf.exe	31
PID 2584 wrote to memory of 1656	2584	Quotation PO 11109.pdf.exe	31
PID 2584 wrote to memory of 1656	2584	Quotation PO 11109.pdf.exe	31
PID 2584 wrote to memory of 1656	2584	Quotation PO 11109.pdf.exe	31
PID 2584 wrote to memory of 1656	2584	Quotation PO 11109.pdf.exe	31
PID 2584 wrote to memory of 1656	2584	Quotation PO 11109.pdf.exe	31
PID 2584 wrote to memory of 1656	2584	Quotation PO 11109.pdf.exe	31
PID 1656 wrote to memory of 2732	1656	Quotation PO 11109.pdf.exe	34
PID 1656 wrote to memory of 2732	1656	Quotation PO 11109.pdf.exe	34
PID 1656 wrote to memory of 2732	1656	Quotation PO 11109.pdf.exe	34
PID 1656 wrote to memory of 2732	1656	Quotation PO 11109.pdf.exe	34
PID 1656 wrote to memory of 2740	1656	Quotation PO 11109.pdf.exe	36
PID 1656 wrote to memory of 2740	1656	Quotation PO 11109.pdf.exe	36
PID 1656 wrote to memory of 2740	1656	Quotation PO 11109.pdf.exe	36
PID 1656 wrote to memory of 2740	1656	Quotation PO 11109.pdf.exe	36
PID 2732 wrote to memory of 2204	2732	cmd.exe	37
PID 2732 wrote to memory of 2204	2732	cmd.exe	37
PID 2732 wrote to memory of 2204	2732	cmd.exe	37
PID 2732 wrote to memory of 2204	2732	cmd.exe	37
PID 2740 wrote to memory of 3068	2740	cmd.exe	39
PID 2740 wrote to memory of 3068	2740	cmd.exe	39
PID 2740 wrote to memory of 3068	2740	cmd.exe	39
PID 2740 wrote to memory of 3068	2740	cmd.exe	39
PID 2740 wrote to memory of 1232	2740	cmd.exe	40
PID 2740 wrote to memory of 1232	2740	cmd.exe	40
PID 2740 wrote to memory of 1232	2740	cmd.exe	40
PID 2740 wrote to memory of 1232	2740	cmd.exe	40
PID 1232 wrote to memory of 1664	1232	windows manger.exe	41
PID 1232 wrote to memory of 1664	1232	windows manger.exe	41
PID 1232 wrote to memory of 1664	1232	windows manger.exe	41
PID 1232 wrote to memory of 1664	1232	windows manger.exe	41
PID 1232 wrote to memory of 1664	1232	windows manger.exe	41
PID 1232 wrote to memory of 1664	1232	windows manger.exe	41
PID 1232 wrote to memory of 1664	1232	windows manger.exe	41
PID 1232 wrote to memory of 1664	1232	windows manger.exe	41
PID 1232 wrote to memory of 1664	1232	windows manger.exe	41

C:\Users\Admin\AppData\Local\Temp\Quotation PO 11109.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation PO 11109.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Users\Admin\AppData\Local\Temp\Quotation PO 11109.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation PO 11109.pdf.exe"
  2⤵
  PID:2520
- C:\Users\Admin\AppData\Local\Temp\Quotation PO 11109.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation PO 11109.pdf.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1656
- - 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:2732
  - - 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:2204
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpE2C1.tmp.bat""
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2740
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:3068
  - - 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:1232
    - - 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:1664

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab433A.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE2C1.tmp.bat

Filesize
161B

MD5
84737284f276d14f5cff5f2b34099320

SHA1
29cb52c61bb37ed0a64cbcbb99d49c2ab760cf55

SHA256
ee4f57f73d60a8e7620e2fde93317501478a62acd25225ce0a9ade599085b4ce

SHA512
c1998a4d6d630868c656e0ab520059586a3d36101b8a970597a616fd926e204b91dfc620c42b27082540f6cd94f7a936346a897da1f1722a49e8e8b808cd8265

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

Filesize
589KB

MD5
d53fc47751fa8ad0b613c489aa779bda

SHA1
ec14fabb10b9aa9f05344c03802294e114bb2af1

SHA256
2328201990de5c77c0353c61e628c68a01aaef1d4566ef9816a1f0333562c5ea

SHA512
b6441aeff786d23401267f23960410614a2686e3d10b6f58c5e9042d7c2f48a4975383f2ec05cfc801faa39a3bbb6bb58161b5ec248252c89ab9bf6ef382e326

Download Submit
memory/1232-42-0x0000000000870000-0x0000000000908000-memory.dmp

Filesize
608KB

Download
memory/1656-36-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/1656-10-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1656-27-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/1656-26-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/1656-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1656-23-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1656-20-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1656-18-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1656-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1656-14-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1656-12-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1656-24-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/1664-57-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1664-55-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1664-52-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2584-5-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/2584-25-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/2584-7-0x0000000004ED0000-0x0000000004F24000-memory.dmp

Filesize
336KB

Download
memory/2584-6-0x0000000000540000-0x0000000000556000-memory.dmp

Filesize
88KB

Download
memory/2584-4-0x000000007452E000-0x000000007452F000-memory.dmp

Filesize
4KB

Download
memory/2584-0-0x000000007452E000-0x000000007452F000-memory.dmp

Filesize
4KB

Download
memory/2584-3-0x00000000005F0000-0x000000000060E000-memory.dmp

Filesize
120KB

Download
memory/2584-2-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/2584-1-0x00000000001A0000-0x0000000000238000-memory.dmp

Filesize
608KB

Download