Overview

overview

10

Static

static

10

91qsdf.exe

windows7-x64

10

91qsdf.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    72s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    19-01-2025 16:15

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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 (335) files with added filename extension

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

    ransomware
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 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
  • 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
  • Modifies Control Panel 2 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91qsdf.exe
    "C:\Users\Admin\AppData\Local\Temp\91qsdf.exe"
    1⤵
    • Loads dropped DLL
    • 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:432
    • C:\ProgramData\580F.tmp
      "C:\ProgramData\580F.tmp"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:652
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\580F.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2268
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x158
    1⤵
      PID:2196

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-3692679935-4019334568-335155002-1000\desktop.ini
      Filesize

      129B

      MD5

      469ad4b07c811a6745be07e85b335a8b

      SHA1

      11218155246b2a7aae006282ebe3a397020d7994

      SHA256

      79a25bbdee7f4c3817a3488bf17de0d7b9711a8911ead5fbbf459266f27ed104

      SHA512

      c7ec8c11f3af47a5b52a2ef47af3fe1827db6657564cde7d9a607dffca6e37885e037fc57e478d0bd21504960752aeed9fca8a89111d512e5640b501b790d7e5

      Download Submit

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

      147KB

      MD5

      7ac9d5a7e61f19f9fad6c2d9e26b0a81

      SHA1

      07cbd0c4a84517e731e9a3fc033ecd101965f227

      SHA256

      a143dd4d549118a9da5052d0800b81bb4c064327497ec54de6141522e8fca87f

      SHA512

      4914d2df7a5cc45af000758fd55025cf9e6752534b5bbb39d7e38e75e536abf109e4cff799a609931e6387a4cbc55ff5a2512eb326db29a27745ac6b06f6fc80

      Download Submit

    • C:\xP8S4N9J1.README.txt
      Filesize

      1KB

      MD5

      c283c63ae856a725b5e4f127156e4cf6

      SHA1

      d8d9b6f436f2495f52eb248f05998835fc71738d

      SHA256

      9bcbb2fc5d4124bce953bda76499c9a1ddf81a7befb06dd1c0294bedd3c9ba4b

      SHA512

      3a07269c7de4a3ce862aa8f15014bab2f39497c1be0359fd34b2ecb4f417dd9cdcb43c249d7f80563d2facedaece9741310f5e8cd452e15c508e02098be9d0e2

      Download Submit

    • F:\$RECYCLE.BIN\S-1-5-21-3692679935-4019334568-335155002-1000\DDDDDDDDDDD
      Filesize

      129B

      MD5

      1444af015424306f40fc264c2cc2a366

      SHA1

      987d9c0c81270a493ff44af72cc89ab187554839

      SHA256

      f31e6cafc3025d9112163adee30105186b450e6ce2adb40b25c6e5aa1ed8eb40

      SHA512

      0569dc261d3a2207e8ef7a6891c1cbb1b82bfb14794c5e15733ba3231c1ff70640d01b0021a13a2fe0c0404c3d593113df0bd50af62a5ec10470663a18bf94b9

      Download Submit

    • \ProgramData\580F.tmp
      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

      Download Submit

    • memory/432-0-0x0000000002210000-0x0000000002250000-memory.dmp

      Filesize

      256KB

      Download

    • memory/652-861-0x0000000002370000-0x00000000023B0000-memory.dmp

      Filesize

      256KB

      Download

    • memory/652-864-0x0000000002370000-0x00000000023B0000-memory.dmp

      Filesize

      256KB

      Download

    • memory/652-863-0x000000007EF20000-0x000000007EF21000-memory.dmp

      Filesize

      4KB

      Download

    • memory/652-862-0x000000007EF80000-0x000000007EF81000-memory.dmp

      Filesize

      4KB

      Download

    • memory/652-859-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/652-894-0x000000007EF60000-0x000000007EF61000-memory.dmp

      Filesize

      4KB

      Download

    • memory/652-893-0x000000007EF40000-0x000000007EF41000-memory.dmp

      Filesize

      4KB

      Download