Overview

overview

10

Static

static

10

91qsdf.exe

windows7-x64

10

91qsdf.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 (361) 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
  • 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 12 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:2348
    • C:\ProgramData\C468.tmp
      "C:\ProgramData\C468.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:2264
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\C468.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2356
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x14c
    1⤵
      PID:884

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-4177215427-74451935-3209572229-1000\desktop.ini
      Filesize

      129B

      MD5

      1979a55ebab4aeef5add771bab00073e

      SHA1

      4ac25cdc7a80655b543508b132c9e08699190832

      SHA256

      4b7aaf1a265f3d7398a2e35c0cf345b5d9e5f7daf7308e8cedfb91730cb315c2

      SHA512

      2cbef9d1fa1d1615b2c6b62a056c9f40074303653005dc76fab07ccac1af7aa321b3354fad14ac0f29f05c4eb4b6b81729eb103f3d8e207dca5d4afe01a4236d

      Download Submit

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

      147KB

      MD5

      45469bfe83d3d7ac6721ab252ed964a5

      SHA1

      bf692f09a48418a1e6204fcd71f38395fafd1599

      SHA256

      81526a852fba4bd6c5f4a4ec4a535bb8facac7aee96fae78b885b68a19b6dce7

      SHA512

      19bf82700e0100f1e0be6a46d9dd73940a094f5664d1fb6211e293af4bfd057087cb9ad3bc0770baa16e38c2d0d370f9d723d375f0941f720a94e70cb68a60fd

      Download Submit

    • C:\xP8S4N9J1.README.txt
      Filesize

      1KB

      MD5

      c283c63ae856a725b5e4f127156e4cf6

      SHA1

      d8d9b6f436f2495f52eb248f05998835fc71738d

      SHA256

      9bcbb2fc5d4124bce953bda76499c9a1ddf81a7befb06dd1c0294bedd3c9ba4b

      SHA512

      3a07269c7de4a3ce862aa8f15014bab2f39497c1be0359fd34b2ecb4f417dd9cdcb43c249d7f80563d2facedaece9741310f5e8cd452e15c508e02098be9d0e2

      Download Submit

    • F:\$RECYCLE.BIN\S-1-5-21-4177215427-74451935-3209572229-1000\DDDDDDDDDDD
      Filesize

      129B

      MD5

      a5cc36d1e85ee45becdf865d164e7c8f

      SHA1

      3b14f2712825a2e0b36180cc25a0dffb09fe9531

      SHA256

      ca4d81e9dd5a4f89e7b394214664067c2514b1c2bed999b6d2469630bb916aee

      SHA512

      8361bf2c22ecc318dada598511834e521ca520b5947d15fad14a676b0e769e8e7341d7005faf66134639fcf245b896b2692ae8a1e9333892c09022f2d258ab99

      Download Submit

    • \ProgramData\C468.tmp
      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

      Download Submit

    • memory/2264-898-0x000000007EF80000-0x000000007EF81000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2264-897-0x0000000002150000-0x0000000002190000-memory.dmp

      Filesize

      256KB

      Download

    • memory/2264-896-0x000000007EF20000-0x000000007EF21000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2264-895-0x0000000002150000-0x0000000002190000-memory.dmp

      Filesize

      256KB

      Download

    • memory/2264-893-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2264-928-0x000000007EF60000-0x000000007EF61000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2264-927-0x000000007EF40000-0x000000007EF41000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2348-0-0x00000000001E0000-0x0000000000220000-memory.dmp

      Filesize

      256KB

      Download