Resubmissions

19-01-2025 12:15

250119-pev5waxmgn 10

09-01-2025 09:28

250109-lftfwswlew 10

Analysis

  • max time kernel
    122s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    19-01-2025 12:15

General

  • Target

    1.exe

  • Size

    147KB

  • MD5

    c09185c157831e4915c255d7002941f4

  • SHA1

    beca597f2c2c120c3d74163501a81f56664ff4f7

  • SHA256

    6f3d87f3dcfd248e64d26cf338a19f41a6f93affdde5fab071a631ff38637757

  • SHA512

    a843854ca79f4d98938635612d20f3d5b79d8661ee91d1ae130b2deffe95e44d7028f76b8b221c87fab0638afe5baf3c55e8348f8aa10dddc90133167a3c17bf

  • SSDEEP

    3072:SqJogYkcSNm9V7DnfX/91c6G+Mqc+2EIEMF+T:Sq2kc4m9tDnfXPc6g+2XEMF

Malware Config

Extracted

Path

C:\5VFg9o5tW.README.txt

Ransom Note
------Dear managers!------ If you are reading this, it means your network has been attacked. What does that mean? We hacked your network and now all your files, documents, client database, projects and other important data safely encrypted with reliable algorithms. we also have a copy of all your data. WARNING!!! You don't have to go to the POLICE, etc. Otherwise we will not be able to help you. You cannot acces the files right now. But do not worry. You can get it back! It is easy to recover in a few steps. As proof, we can decrypt any 3 files you provide. We are not interested to ruin your business. We want to get ransom and be happy. Please bring this information to your team leaders as soon as possible. In case of a successfull transaction, we will restore your systems within 4-6 hours and also provide security recommendations. -----------------------WARNING----------------------- If you modify files - our decrypt software won't able to recover data If you use third party software - you can damage/modify files (see item 1) You nedd cipher key / our decrypt software to restore you files. The police or authorities will not be able to help you get the cipher key. We encourage you to consider your decisions. -----------------------RECOVERY----------------------- Use email: [email protected] Alternative email address: [email protected] ([email protected]) ID message: c5337115f1d1a

Signatures

  • Renames multiple (320) 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 3 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.

  • 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.

  • 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\1.exe
    "C:\Users\Admin\AppData\Local\Temp\1.exe"
    1⤵
    • Loads dropped DLL
    • Drops desktop.ini file(s)
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2368
    • C:\ProgramData\EEA3.tmp
      "C:\ProgramData\EEA3.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:1656
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\EEA3.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2860
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x154
    1⤵
      PID:1504

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      129B

      MD5

      f6e2324528f6e42c1502598ab89ff0a0

      SHA1

      6151480d090e043782d8a0a34338205bd6354349

      SHA256

      2e3b510e097f028d7c8ac8f09188bf509b6e3c86c78432e83262ee10e906bbc5

      SHA512

      a50b4d53f58a28912b1d845fff4d5814a25d8bdd5e382df77f428140c6603f3c92e0910a538f63f432fd5a5c4ae82716696f487157af51ae1ac9edcda17d6a00

    • C:\5VFg9o5tW.README.txt

      Filesize

      1KB

      MD5

      17e3459297cd54cf124d089248ff395b

      SHA1

      617e2ddd0a69a242d4da510d32670a170ff667fa

      SHA256

      94aaefad5d5a9fea79e9271941a5e874951cceac46a110ef0f1de841051f6421

      SHA512

      280536a672423a4bf4df1cb7cd49bd0a7a3f731dfe4543359a84d3a82d734e3882386b336af62a77e2763cbe7fe9e4ff6ae852241dd61ab702cda1b0d2f02e13

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

      Filesize

      147KB

      MD5

      f48862eebb9a7ec82817ea475212940a

      SHA1

      a31930fd432101d5ba0d204f27c0726113c1604b

      SHA256

      c4cbecaa96de62672cfb0ffbde1fa6aefe527e73dd373f2da8547fafba020916

      SHA512

      394f6b91d909eec0f61b32c0bf8e3f07cff99474308c53356a5a59f9730e16df27ee5aa3b6070b6c9f28f01bb020a7ef05a2fab42bab3efd48b2ed33e4869ba7

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

      Filesize

      129B

      MD5

      f6ff8a05b895f54ad7ab7f98198b561a

      SHA1

      5d8cc517118a434e0d55c1176d475989d2f3e5fd

      SHA256

      6285ad50509d5fa87ab2a87a2955a05c8d45d3461eb1b81f2929ac8e89ea7be6

      SHA512

      ed651e5e531149af4a311af2d41845f3d72736a5c0ce5aaa9507c4fe0d04c04c4fe1f047bc35f8302a7f091eaea891193405c7f84a9ea31f30998192e8b09f34

    • \ProgramData\EEA3.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • memory/1656-842-0x0000000000401000-0x0000000000404000-memory.dmp

      Filesize

      12KB

    • memory/1656-843-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/1656-845-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/1656-846-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2368-0-0x0000000002320000-0x0000000002360000-memory.dmp

      Filesize

      256KB