Overview

overview

10

Static

static

10

91qsdf.exe

windows7-x64

10

91qsdf.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    109s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-01-2025 16:08

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General

  • Target

    91qsdf.exe

  • Size

    147KB

  • MD5

    3c2c0b97e9295c60267c533010ad9253

  • SHA1

    270ddd75d7880a91c0a0cafaffed4f2757f54770

  • SHA256

    984d394fb9324130b52cc05e04db17fd6e1743652e3500e8fbc0b28cc06f125c

  • SHA512

    c6fed2954e05a33d5ef99610b937450043fc61fa0537f9da982e2c0dcac1ee26f734609ed207b12ad8dda31d191af2072c76b9f19ffbaa4a56b09b47a5955914

  • SSDEEP

    3072:GqJogYkcSNm9V7DQ4loXzHg0cSlm7FzT:Gq2kc4m9tDQ4aX00cWm7F

Score
10/10
defense_evasiondiscoveryransomwarespywarestealer

Malware Config

Extracted

Path

C:\xP8S4N9J1.README.txt

Ransom Note
======================================== !!! ATTENTION !!! Your Files Have Been Encrypted by ManiaCrypt ======================================== What Happened? -------------- All of your important files, documents, photos, and databases have been encrypted using RSA. Without our decryption program, your files cannot be restored. Why Trust Us: -------------------- If we dont give you the decryption program after payment, nobody will trust us. What You Need to Do: -------------------- To get the decryption program, you must contact us. Steps to Restore Your Files: ---------------------------- 1. Open Discord and add the username ballets4. 2. Send us a message and mention your situation. 3. We will provide further instructions for obtaining the decryption program. Important Information: ----------------------- - DO NOT attempt to recover your files using third-party tools. They may damage your data and make recovery impossible. - DO NOT rename, move, or modify the encrypted files. This will also make decryption impossible. - Only we have the tools required to decrypt your files safely and effectively. We are waiting for your message. Time is critical. ======================================== Your Files. Your Responsibility. ========================================

Signatures

  • Renames multiple (655) files with added filename extension

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

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Drops desktop.ini file(s) 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

    defense_evasion
  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 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 3 IoCs

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

    discovery
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Control Panel 2 IoCs
    evasion
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 15 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91qsdf.exe
    "C:\Users\Admin\AppData\Local\Temp\91qsdf.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2508
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:4548
    • C:\ProgramData\EC55.tmp
      "C:\ProgramData\EC55.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:4432
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\EC55.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3656
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:4556
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3432
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{DAB4C4DC-F5BA-44E2-86E1-1CB3B2C9A838}.xps" 133817765344580000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        PID:1044

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-3442511616-637977696-3186306149-1000\BBBBBBBBBBB
      Filesize

      129B

      MD5

      3c0ea1b4b63c2edbaaa18c21d9eb1503

      SHA1

      88bfcff361e2ebc847eeb5cba3edfb9fd92815c1

      SHA256

      1b05badc902270d7b60c05d81b85ebe7adef9028976204e5ff256c6fd389133b

      SHA512

      de1ee9f5977096a9a991501197b09825ba26e526bbbcdf5639a05890d3b5500a70fcb17b1abf1ec0ee2744eba0a64541c1612d6048455d7fad4c92b01f3371a7

      Download Submit

    • C:\ProgramData\EC55.tmp
      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDD
      Filesize

      147KB

      MD5

      b2a01d3c6a633ba34f9d272ce559ed89

      SHA1

      2ac39d5b25258ba3fa68e34984c841133f1c3c90

      SHA256

      f373e84ab2cf80fa946edca489e1ba427a84146de560cdb7a36987085bc3b75c

      SHA512

      16e0465605d048082fd4f3152b1942c0462186eaa2d428728a8fab86edcc8c5d49a00d623a972d42b8f1f70e324e2c76bddf1f8251b9fa6dd129fa5dccd79ae6

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\{99D86225-5863-4C48-B60F-94F4326E867C}
      Filesize

      4KB

      MD5

      6be7bebc6f5b5521a7cb0917be8e2583

      SHA1

      5579519f91cf092c212f4d075ecad187b4aaee7c

      SHA256

      accb13fdc396c07733165ee88e3f69167f1ab6bd5bf8ace21889741086b0a515

      SHA512

      3de6b2d75b7792e9a06d31bd0cd09ed7b48859fc06572f3a8b0a3820dd761b2564cb509dd9f88be804dd6f4d5e16842423f6743c04315f4d9014c39a6e5dd485

      Download Submit

    • C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
      Filesize

      4KB

      MD5

      269fd41a235d0cec0637ad04ad0da615

      SHA1

      af42e709922a00b496d9ad3b37c00d6e4e9a7cdb

      SHA256

      c69f686e2f05c85792a8576a8b1f78d073736865ebf8a947bb4ea752bc25db9a

      SHA512

      5c7013b8134fc2423ddad7884cb993c8a9fcb796b3f068938711768c16e41aa34ce1fff48e56b6f8b9d2c27996dc1d5124e91c5ecf56f3c0ffe4ebefb4ab4b80

      Download Submit

    • C:\xP8S4N9J1.README.txt
      Filesize

      1KB

      MD5

      c283c63ae856a725b5e4f127156e4cf6

      SHA1

      d8d9b6f436f2495f52eb248f05998835fc71738d

      SHA256

      9bcbb2fc5d4124bce953bda76499c9a1ddf81a7befb06dd1c0294bedd3c9ba4b

      SHA512

      3a07269c7de4a3ce862aa8f15014bab2f39497c1be0359fd34b2ecb4f417dd9cdcb43c249d7f80563d2facedaece9741310f5e8cd452e15c508e02098be9d0e2

      Download Submit

    • F:\$RECYCLE.BIN\S-1-5-21-3442511616-637977696-3186306149-1000\DDDDDDDDDDD
      Filesize

      129B

      MD5

      9bbf51b954c4e4b5697435eab5d32f7f

      SHA1

      cec4c291f9064cce4c82a55d3ad8a8bea41fa638

      SHA256

      46f2cfdd0e34258e9f6b122d8ce54fbb2369554233871de047640ad1350a9679

      SHA512

      0019a52413fdefdbb11199f2ccdfe5aa14d5ecc81bb767caf21795c990ec73b2ef5921fa41bc68a20f3d2c68015eea7c74961c547b741c36b4e7ddac9b98ef30

      Download Submit

    • memory/1044-2897-0x00007FF9E8BD0000-0x00007FF9E8BE0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1044-2987-0x00007FF9E8BD0000-0x00007FF9E8BE0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1044-2895-0x00007FF9E8BD0000-0x00007FF9E8BE0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1044-2896-0x00007FF9E8BD0000-0x00007FF9E8BE0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1044-2898-0x00007FF9E8BD0000-0x00007FF9E8BE0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1044-2989-0x00007FF9E8BD0000-0x00007FF9E8BE0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1044-2899-0x00007FF9E8BD0000-0x00007FF9E8BE0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1044-2990-0x00007FF9E8BD0000-0x00007FF9E8BE0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1044-2988-0x00007FF9E8BD0000-0x00007FF9E8BE0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1044-2932-0x00007FF9E6770000-0x00007FF9E6780000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1044-2933-0x00007FF9E6770000-0x00007FF9E6780000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2508-1-0x0000000002830000-0x0000000002840000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2508-2-0x0000000002830000-0x0000000002840000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2508-2883-0x0000000002830000-0x0000000002840000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2508-2881-0x0000000002830000-0x0000000002840000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2508-2882-0x0000000002830000-0x0000000002840000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2508-0-0x0000000002830000-0x0000000002840000-memory.dmp

      Filesize

      64KB

      Download