Overview

overview

10

Static

static

10

0A6172B017F62EAA.exe

windows7-x64

10

0A6172B017F62EAA.exe

windows10-2004-x64

10

2891E1D4BAC70EBA.exe

windows7-x64

10

2891E1D4BAC70EBA.exe

windows10-2004-x64

10

3472CB2D1AB89AAB.exe

windows7-x64

10

3472CB2D1AB89AAB.exe

windows10-2004-x64

10

613788884CE0093F.exe

windows7-x64

10

613788884CE0093F.exe

windows10-2004-x64

10

7189AED8B8AE6568.exe

windows7-x64

10

7189AED8B8AE6568.exe

windows10-2004-x64

10

CC3B1F89FAA517E4.exe

windows7-x64

10

CC3B1F89FAA517E4.exe

windows10-2004-x64

10

F5657AC3DC58DC8C.exe

windows7-x64

10

F5657AC3DC58DC8C.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    121s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    14-11-2024 13:19

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General

  • Target

    3472CB2D1AB89AAB.exe

  • Size

    137KB

  • MD5

    cdb5b9402d4db31b15abd8dd2eb1947d

  • SHA1

    912c9ac3addd53685b3409c46dcb73946a74ecd3

  • SHA256

    ba6a4d65b25c86faa7179d1aa3db48c2fc445e393d1b8c0035dbd81d27b93d54

  • SHA512

    50280c0dc4e6d2709d2f18ff77134e029d1a123a5fcb173fab5fc4cd164b64d5b168b6286f39f6d5be7b0dcd140550692963d4fd08577a79682a833d6a6f8619

  • SSDEEP

    3072:PLIQ8YzXEMZK1A2czbFk58x+o+EFz9/t2f65q8hj2bIoKb:PstYrEMw6Bxk5zOFNtgJOCUb

Score
10/10
defense_evasiondiscoveryexecutionimpactransomwarespywarestealer

Malware Config

Extracted

Path

C:\ProgramData\biobio ransmoware.txt

Ransom Note
kasper Ransmoware ATTENTION! At the moment, your system is not protected. We can fix itand restore files. To get started, send a file to decrypt trial. You can trust us after opening the test file. 2.Do not use free programs to unlock. To restore the system write to both : [email protected] and [email protected] Telegram id:@biobiorans Your Decryption ID: 3472CB2D1AB89AAB

Signatures

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (9065) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

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

    discovery
  • Interacts with shadow copies 3 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\3472CB2D1AB89AAB.exe
    "C:\Users\Admin\AppData\Local\Temp\3472CB2D1AB89AAB.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2716
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:2128
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1568
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:564
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\biobio ransmoware.txt
    Filesize

    402B

    MD5

    4cca299786028771f81f76d2c8cf2eb6

    SHA1

    e475afddad2af29b02cd70281c834bcdaf12e4df

    SHA256

    324014b0ad34a853196650fa9a9f1fba91f597f7d7038f144561d68524edc53d

    SHA512

    95e156f0e55af7aa6887857f0c54e466ff5f26e802043e717f7e7a0bbc83840d7d745a7b9871e2ef445c85b0d1e482f5d75b2d2ed44aff6bb9da2537b0df584a

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