Overview

overview

10

Static

static

3

11123d69e8...62.exe

windows7-x64

10

11123d69e8...62.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2024 00:58

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General

  • Target

    11123d69e824e0a71b1b6eb8204401bd9484630341b30875bb0f8a6cea3b3b62.exe

  • Size

    876KB

  • MD5

    7ffee898b3e5bcb568717fc44dc81e8a

  • SHA1

    40bc0a93b02b32daff22716c400aedcae4ba9c15

  • SHA256

    11123d69e824e0a71b1b6eb8204401bd9484630341b30875bb0f8a6cea3b3b62

  • SHA512

    1327e940ae65514964f5973659ade4d8e906eda544e450dc8426c73d5a7c762bdf6f8523cd3440519a02d7a6e63f65dd7e128f0ba923560a3ed1ebb1a12d03bf

  • SSDEEP

    12288:2/ZGm9Z6QZJ85HthwE2s0Wthtrp/pQY4TCSxlMBhVjfspoIClj8sNylXlTNQDg:C9/A5NWE3zTZEuSxl61ljXolXLQ

Score
10/10
asyncratdefaultdiscoveryevasionexecutionrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

polymoly.info:4199

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_file

    siliconsoft.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

    ratasyncrat
  • Asyncrat family
    asyncrat
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
    evasion
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\11123d69e824e0a71b1b6eb8204401bd9484630341b30875bb0f8a6cea3b3b62.exe
    "C:\Users\Admin\AppData\Local\Temp\11123d69e824e0a71b1b6eb8204401bd9484630341b30875bb0f8a6cea3b3b62.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1464
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\11123d69e824e0a71b1b6eb8204401bd9484630341b30875bb0f8a6cea3b3b62.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2844
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZrsnggYrjQaKQd.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1352
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZrsnggYrjQaKQd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5D6C.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2744
    • C:\Users\Admin\AppData\Local\Temp\11123d69e824e0a71b1b6eb8204401bd9484630341b30875bb0f8a6cea3b3b62.exe
      "C:\Users\Admin\AppData\Local\Temp\11123d69e824e0a71b1b6eb8204401bd9484630341b30875bb0f8a6cea3b3b62.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2284

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp5D6C.tmp
    Filesize

    1KB

    MD5

    27b7e5a950c6896d66c4d5eddd661e56

    SHA1

    fdd6f89a3778dbf05cf5a966319a6165cd247ca0

    SHA256

    fbe4ffc401d4d15837792ef42763307f88cbb7371cd98eea49424f9c01cb4a79

    SHA512

    3ba0a84cd65912fc4fab227bddaad41ef9e1f557a32fcc55849e5f1e0d33a7ddaec07f032ea00f76496154e434c0bb64f477c1f130980cdba0eb4fdfd0491e08

    Download Submit

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
    Filesize

    7KB

    MD5

    f3c05e96a5b53493e9ac42b9b85018c9

    SHA1

    0e1d04efef69ee815e0aed0957f38cd7dc3ee350

    SHA256

    a4f9078c7f02f4296da3eb76c34e139ecb4c264a9d27b37dac954aceb7214daf

    SHA512

    461d4ea3016f15663dc18fcb9d68779c1f92ae57fe8a545d453396958c21132b879be40bcb0fcb5efcce81de3c8b306b42a3e16cdeb20baef8468cba313fea3c

    Download Submit

  • memory/1464-18-0x0000000004D20000-0x0000000004D32000-memory.dmp

    Filesize

    72KB

    Download

  • memory/1464-31-0x0000000073DB0000-0x000000007449E000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/1464-4-0x0000000073DB0000-0x000000007449E000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/1464-5-0x00000000054F0000-0x00000000055CA000-memory.dmp

    Filesize

    872KB

    Download

  • memory/1464-2-0x0000000073DB0000-0x000000007449E000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/1464-1-0x0000000000D00000-0x0000000000DE2000-memory.dmp

    Filesize

    904KB

    Download

  • memory/1464-0-0x0000000073DBE000-0x0000000073DBF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1464-3-0x0000000000520000-0x0000000000538000-memory.dmp

    Filesize

    96KB

    Download

  • memory/2284-19-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

    Download

  • memory/2284-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2284-28-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

    Download

  • memory/2284-25-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

    Download

  • memory/2284-23-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

    Download

  • memory/2284-29-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

    Download

  • memory/2284-30-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

    Download

  • memory/2284-21-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

    Download