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Overview

overview

8

Static

static

c3b3353beb...94.exe

windows7-x64

8

c3b3353beb...94.exe

windows10-2004-x64

3

Analysis

  • max time kernel
    150s
  • max time network
    43s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    10/01/2023, 02:36

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General

  • Target

    c3b3353bebc2d81df44b3ffa94b57599d92ad694.exe

  • Size

    339KB

  • MD5

    8df81fe85eb46567491d0fc8e1f8aff8

  • SHA1

    c3b3353bebc2d81df44b3ffa94b57599d92ad694

  • SHA256

    7bdf7008dff8fd0c2f09d32c930641e72b00c94864f1bebc1e0336f0353070d9

  • SHA512

    4ce25bd8efa3d9d9dfcaf7cc9389ee42cb4d44dc01d4836c3c7427144d0dfcb185d4a12dd8cccd97edb0598f4a84ad4a115767b2b43a71ba69c69c79b9ad8fa0

  • SSDEEP

    6144:uXUXyc1A2i0or/7Oou1c5K6wwt3dfJqhxfmbTziCSZXfu5zp7:uEXZ1vQTnu1cfwaZctmbTz/SZXfu5zp7

Score
8/10
persistence

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
    evasion
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 45 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c3b3353bebc2d81df44b3ffa94b57599d92ad694.exe
    "C:\Users\Admin\AppData\Local\Temp\c3b3353bebc2d81df44b3ffa94b57599d92ad694.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1672
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 1672 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\c3b3353bebc2d81df44b3ffa94b57599d92ad694.exe" & start C:\Users\Admin\AppData\Local\bamtp.exe -f
      2⤵
      • Deletes itself
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1168
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /pid 1672
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1792
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 3 127.1
        3⤵
        • Runs ping.exe
        PID:972
      • C:\Users\Admin\AppData\Local\bamtp.exe
        C:\Users\Admin\AppData\Local\bamtp.exe -f
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:680

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\bamtp.exe
    Filesize

    339KB

    MD5

    8df81fe85eb46567491d0fc8e1f8aff8

    SHA1

    c3b3353bebc2d81df44b3ffa94b57599d92ad694

    SHA256

    7bdf7008dff8fd0c2f09d32c930641e72b00c94864f1bebc1e0336f0353070d9

    SHA512

    4ce25bd8efa3d9d9dfcaf7cc9389ee42cb4d44dc01d4836c3c7427144d0dfcb185d4a12dd8cccd97edb0598f4a84ad4a115767b2b43a71ba69c69c79b9ad8fa0

    Download Submit

  • C:\Users\Admin\AppData\Local\bamtp.exe
    Filesize

    339KB

    MD5

    8df81fe85eb46567491d0fc8e1f8aff8

    SHA1

    c3b3353bebc2d81df44b3ffa94b57599d92ad694

    SHA256

    7bdf7008dff8fd0c2f09d32c930641e72b00c94864f1bebc1e0336f0353070d9

    SHA512

    4ce25bd8efa3d9d9dfcaf7cc9389ee42cb4d44dc01d4836c3c7427144d0dfcb185d4a12dd8cccd97edb0598f4a84ad4a115767b2b43a71ba69c69c79b9ad8fa0

    Download Submit

  • \Users\Admin\AppData\Local\bamtp.exe
    Filesize

    339KB

    MD5

    8df81fe85eb46567491d0fc8e1f8aff8

    SHA1

    c3b3353bebc2d81df44b3ffa94b57599d92ad694

    SHA256

    7bdf7008dff8fd0c2f09d32c930641e72b00c94864f1bebc1e0336f0353070d9

    SHA512

    4ce25bd8efa3d9d9dfcaf7cc9389ee42cb4d44dc01d4836c3c7427144d0dfcb185d4a12dd8cccd97edb0598f4a84ad4a115767b2b43a71ba69c69c79b9ad8fa0

    Download Submit

  • \Users\Admin\AppData\Local\bamtp.exe
    Filesize

    339KB

    MD5

    8df81fe85eb46567491d0fc8e1f8aff8

    SHA1

    c3b3353bebc2d81df44b3ffa94b57599d92ad694

    SHA256

    7bdf7008dff8fd0c2f09d32c930641e72b00c94864f1bebc1e0336f0353070d9

    SHA512

    4ce25bd8efa3d9d9dfcaf7cc9389ee42cb4d44dc01d4836c3c7427144d0dfcb185d4a12dd8cccd97edb0598f4a84ad4a115767b2b43a71ba69c69c79b9ad8fa0

    Download Submit

  • \Users\Admin\AppData\Local\bamtp.exe
    Filesize

    339KB

    MD5

    8df81fe85eb46567491d0fc8e1f8aff8

    SHA1

    c3b3353bebc2d81df44b3ffa94b57599d92ad694

    SHA256

    7bdf7008dff8fd0c2f09d32c930641e72b00c94864f1bebc1e0336f0353070d9

    SHA512

    4ce25bd8efa3d9d9dfcaf7cc9389ee42cb4d44dc01d4836c3c7427144d0dfcb185d4a12dd8cccd97edb0598f4a84ad4a115767b2b43a71ba69c69c79b9ad8fa0

    Download Submit

  • memory/680-70-0x0000000001000000-0x00000000010A7000-memory.dmp

    Filesize

    668KB

    Download

  • memory/680-69-0x0000000001000000-0x00000000010A7000-memory.dmp

    Filesize

    668KB

    Download

  • memory/1672-54-0x0000000001000000-0x00000000010A7000-memory.dmp

    Filesize

    668KB

    Download

  • memory/1672-58-0x0000000001000000-0x00000000010A7000-memory.dmp

    Filesize

    668KB

    Download

  • memory/1672-56-0x0000000001000000-0x00000000010A7000-memory.dmp

    Filesize

    668KB

    Download

  • memory/1672-55-0x0000000075841000-0x0000000075843000-memory.dmp

    Filesize

    8KB

    Download