Analysis

  • max time kernel
    117s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    17-09-2024 02:07

General

  • Target

    fa7dc4c2263227936ec13d9086ab35aa.exe

  • Size

    146KB

  • MD5

    fa7dc4c2263227936ec13d9086ab35aa

  • SHA1

    f6ebda1c5b4ed7c1048a89f4fcde70ed12c3f302

  • SHA256

    914efa089dcb98c5a81f548fa4e8769ef1d8abbcd891a25812fa4771aac24d4a

  • SHA512

    712113a7a690254c9bf79496d4220daf4828c284f434c3bbbf61cb55dd625fce327dff15025daa24ecc18634b81380a920dc4640c7009ee482b1962b11cb2fd7

  • SSDEEP

    3072:q6glyuxE4GsUPnliByocWepccEte6HsR0XAN1n:q6gDBGpvEByocWeicMg

Malware Config

Signatures

  • Renames multiple (348) files with added filename extension

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • 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.

  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 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.

  • Modifies Control Panel 2 IoCs
  • Modifies registry class 5 IoCs
  • 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\fa7dc4c2263227936ec13d9086ab35aa.exe
    "C:\Users\Admin\AppData\Local\Temp\fa7dc4c2263227936ec13d9086ab35aa.exe"
    1⤵
    • Loads dropped DLL
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2372
    • C:\ProgramData\D7D8.tmp
      "C:\ProgramData\D7D8.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:1324
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\D7D8.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2452
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x14c
    1⤵
      PID:2756

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-3434294380-2554721341-1919518612-1000\desktop.ini

      Filesize

      129B

      MD5

      74f7e820402da7c71dad49e247aba895

      SHA1

      dd664afeea21e27a8b1d98a8a4671f878a7d1d8b

      SHA256

      60b08f558f775470f617df6ea3ebdc9098013abca178b365809e6eb6be767116

      SHA512

      03653b44592bd652b9eead812910b5bed1934f6a05a0c0ee1c2410b14d82621580b9d2301b230e3059fc85053d48523a2be99502e1c95ece0d64af5feb0cb830

    • C:\IdCxsG00Z.README.txt

      Filesize

      343B

      MD5

      72b1ffaeb7de456483f491ecceadb088

      SHA1

      ee1953abc295245ab01f35a4a823883826bf2b41

      SHA256

      eb892eac9899b995047733bb17acd4945eb42b7b49f2ee8ad52b8026bc0297a7

      SHA512

      c0e7cad617cf1490bb25fc47936edc3ae164b190ed34f2d2a50e7e84ce6e0d6712a6ba9ab351cca1589266078326a00317516c53fecf96f20eaefe15e92ce445

    • C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

      Filesize

      146KB

      MD5

      f123bb1e6e4e2aa3dbcbc2fafaaf5e6b

      SHA1

      c9a016b6a1ba10b52bda5cb16bdfb902af698dcb

      SHA256

      acc74e65b6bf7101f5a7d5babe820f49deb9e043b560ed990310ad8727ac5c36

      SHA512

      85dd49e92341efa57d665c65031e0571f31ad22b1b66a780d05df5196b00e86cd2a73b571f06870b341dc21716a48eff780a1c9813910e041386b0a8d65b7ed5

    • F:\$RECYCLE.BIN\S-1-5-21-3434294380-2554721341-1919518612-1000\EEEEEEEEEEE

      Filesize

      129B

      MD5

      bd13272e07f4f54659a87299a1e0dbcb

      SHA1

      7f4cda918b471c2972b74d594a5bee868d4cee8b

      SHA256

      88e320b81a273adaba5bbeefaa10c30df3c981598c1a25034b53e58b5a872817

      SHA512

      a2cb81fe9b94492d8e43bb6afb3097644a4d5414ff36dfa68623c886d32ce261647eba2a8f4584dcaccd758d01428e13d0918c5cf6202ed0ec0495ed5506c3d9

    • \ProgramData\D7D8.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • memory/1324-885-0x000000007EF80000-0x000000007EF81000-memory.dmp

      Filesize

      4KB

    • memory/1324-884-0x00000000002F0000-0x0000000000330000-memory.dmp

      Filesize

      256KB

    • memory/1324-883-0x00000000002F0000-0x0000000000330000-memory.dmp

      Filesize

      256KB

    • memory/1324-882-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

      Filesize

      4KB

    • memory/1324-886-0x000000007EF20000-0x000000007EF21000-memory.dmp

      Filesize

      4KB

    • memory/1324-916-0x000000007EF60000-0x000000007EF61000-memory.dmp

      Filesize

      4KB

    • memory/1324-915-0x000000007EF40000-0x000000007EF41000-memory.dmp

      Filesize

      4KB

    • memory/2372-0-0x0000000000D80000-0x0000000000DC0000-memory.dmp

      Filesize

      256KB