Analysis

  • max time kernel
    133s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-03-2024 10:46

General

  • Target

    7c10256d9358d4cadb96b8160651172b6ac9a4bf898868823f7c76bf33cb823e.exe

  • Size

    478KB

  • MD5

    09b17832fc76dcc50a4bf20bd1343bb8

  • SHA1

    9779aa8eb4c6f9eb809ebf4646867b0ed38c97e1

  • SHA256

    7c10256d9358d4cadb96b8160651172b6ac9a4bf898868823f7c76bf33cb823e

  • SHA512

    79163e48b71ee08f311317441002946c8a1857ea6229a5fb1e0d1b5cccb3aa0cc9d61dde0bf580924846fe0e8f179d48a831c9a0ecc1b675ea4de508d8f2e17c

  • SSDEEP

    6144:90wmbI4/Z4SHvrxw6zaIST1w9wEPDasWxxsBhS37b8o6XCFyPwCMa6mnpxq/y:Czv66zaISTW9asWxxAh4IlXC4PUmLq/

Malware Config

Extracted

Path

C:\Users\Admin\Contacts\HOW TO BACK FILES.txt

Ransom Note
Hello Your data has been stolen and encrypted We will delete the stolen data and help with the recovery of encrypted files after payment has been made Do not try to change or restore files yourself, this will break them We provide free decryption for any 3 files up to 3MB in size on our website How to contact with us: 1) Download and install TOR browser by this link: https://www.torproject.org/download/ 2) If TOR blocked in your country and you can't access to the link then use any VPN software 3) Run TOR browser and open the site: wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion/mallox/privateSignin 4) Copy your private ID in the input field. Your Private key: AAC8D504161F3D6C6BC05DD5 5) You will see chat, payment information and we can make free test decryption here Our blog of leaked companies: wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion �
URLs

http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion/mallox/privateSignin

http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion

Signatures

  • TargetCompany,Mallox

    TargetCompany (aka Mallox) is a ransomware which encrypts files using a combination of ChaCha20, AES-128, and Curve25519, first seen in June 2021.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Renames multiple (6519) files with added filename extension

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Enumerates connected drives 3 TTPs 24 IoCs

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

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

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

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7c10256d9358d4cadb96b8160651172b6ac9a4bf898868823f7c76bf33cb823e.exe
    "C:\Users\Admin\AppData\Local\Temp\7c10256d9358d4cadb96b8160651172b6ac9a4bf898868823f7c76bf33cb823e.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:552
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5108
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:6104
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5040
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:1468

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.19071.19011.0_x64__8wekyb3d8bbwe\microsoft.system.package.metadata\resources.e1dabada.pri

    Filesize

    100KB

    MD5

    47825591a2f590df45d8cd35aee0e647

    SHA1

    c5030fe943dd29a72a0a5b38cfec96398487d1ae

    SHA256

    dbee54c7fb678c0abfd67f8590acad9ed813cdaa3ad596ca6662ba8f54bc09f3

    SHA512

    d04fce9d08dda0e36203753fa4d712f96b0ef56624945daf3b0ba250fc7f267f80b1b26e5fec084e731e2ab5c3c98cad7987b1c16fc912b40cb065aa9ec29d0e

  • C:\Users\Admin\Contacts\HOW TO BACK FILES.txt

    Filesize

    910B

    MD5

    21426e4360cd8321ef202dc9a191cc14

    SHA1

    31b025c160d7ca77ee4170a7668018bf2468c52f

    SHA256

    351641c69c23a9cd617442d251a67ae1ea42437be96527988a7fb22d9f543794

    SHA512

    4c71d3a8c278963c4cf8eeb9a19a2e14f77106fe7630552e517a7a49b9bc492d451570c75bc1745f9d61549a60bce89bbaf04942c1445b9dcf0edaf4d485ec0f