Overview

overview

10

Static

static

10

eb82946fa0...12.exe

windows7-x64

10

eb82946fa0...12.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    26-06-2024 02:28

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General

  • Target

    eb82946fa0de261e92f8f60aa878c9fef9ebb34fdababa66995403b110118b12.exe

  • Size

    147KB

  • MD5

    448f1796fe8de02194b21c0715e0a5f6

  • SHA1

    935c0b39837319fda571aa800b67d997b79c3198

  • SHA256

    eb82946fa0de261e92f8f60aa878c9fef9ebb34fdababa66995403b110118b12

  • SHA512

    0b93b2c881b1351ff688089abf12bbfcff279c5d6ca8733d6d821c83148d73c85cfedf5ab5bc02c2145970124b518551db3a9fc701d8084f01009ae20f71a831

  • SSDEEP

    3072:l6glyuxE4GsUPnliByocWep0yjEJ3hDRMK89nB2:l6gDBGpvEByocWeebbMjV4

Score
10/10
ransomwarespywarestealer

Malware Config

Extracted

Path

C:\sYMY1N6ah.README.txt

Ransom Note
*** Welcome to Brain Cipher Ransomware! *** Dear managers! If you're reading this, it means your systems have been hacked and encrypted and your data stolen. *** The most proper way to safely recover your data is through our support. We can recover your systems within 4-6 hours. In order for it to be successful, you must follow a few points: 1.Don't go to the police, etc. 2.Do not attempt to recover data on your own. 3.Do not take the help of third-party data recovery companies. In most cases, they are scammers who will pay us a ransom and take a for themselves. *** If you violate any 1 of these points, we will refuse to cooperate with you!!! 3 steps to data recovery: 1. Download and install Tor Browser (https://www.torproject.org/download/) 2. Go to our support page: http://mybmtbgd7aprdnw2ekxht5qap5daam2wch25coqerrq2zdioanob34ad.onion 3. Enter your encryption ID: M8AL5cWJEU5CnMMPwCdt4x9NVn0ZY2uNtIgnKwkDJwdPbnanVROYFzGmgUCImexTGDmINYgSZXdlhM7D199lNMb294TGY2 Email to support: [email protected]
URLs

http://mybmtbgd7aprdnw2ekxht5qap5daam2wch25coqerrq2zdioanob34ad.onion

Signatures

  • 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.

    spywarestealer
  • Drops desktop.ini file(s) 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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\eb82946fa0de261e92f8f60aa878c9fef9ebb34fdababa66995403b110118b12.exe
    "C:\Users\Admin\AppData\Local\Temp\eb82946fa0de261e92f8f60aa878c9fef9ebb34fdababa66995403b110118b12.exe"
    1⤵
    • Loads dropped DLL
    • Drops desktop.ini file(s)
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2856
    • C:\ProgramData\2607.tmp
      "C:\ProgramData\2607.tmp"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:2124
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\2607.tmp >> NUL
        3⤵
          PID:852
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x148
      1⤵
        PID:2104

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Initial Access

      Execution

      Persistence

      Privilege Escalation

      Defense Evasion

      Credential Access

      Unsecured Credentials

      1
      T1552

      Credentials In Files

      1
      T1552.001

      Discovery

      System Information Discovery

      1
      T1082

      Lateral Movement

      Collection

      Data from Local System

      1
      T1005

      Exfiltration

      Command and Control

      Impact

      Resource Development

      Reconnaissance

      Replay Monitor

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      Downloads

      • C:\$Recycle.Bin\S-1-5-21-2721934792-624042501-2768869379-1000\desktop.ini
        Filesize

        129B

        MD5

        ad34584fc638002e376062efa7571e7f

        SHA1

        82ed20255292609e915605d5735350744ad4a7d3

        SHA256

        3c5e120a559da0828d7d479e16e0c61d3f066e25918408e8c90a06149dbdfbea

        SHA512

        76b83c8dd21bfe1a0212cb1a6b4724d2e27b164cad7cba8f5977d382975527bb2c11cefe77b325fe2281b16f0fb581be6ef4ce8ec48046059fd2798b35a54e1d

        Download Submit
      • C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
        Filesize

        147KB

        MD5

        d407a3bc7861072f878cb845e75fa00e

        SHA1

        ec64d3ba71e47a5d6df17275b706892d47cb4d5d

        SHA256

        88958bb38d624fdae15882eda59f30eddfa83deee5483c70c78c86baed87ada4

        SHA512

        c0e268871c75238153b15082c4f7a64b9a24c3765af8db6b63ae259841d4bc94495c92b023de9b870e6910095cae6b5976a97c2b94e45e68325e73aeac35775c

        Download Submit
      • C:\sYMY1N6ah.README.txt
        Filesize

        1KB

        MD5

        deb2e0756d331362d57ad9fe408c4ff3

        SHA1

        870865aad7c7cccafbca0c1f50f7eecaedbd4bf1

        SHA256

        1ddacee1d25936970279557169037a335b362f86c3797ded625d68077bd0145c

        SHA512

        e218624d2704517a358df0dfb794116bbeed3ad81daae8c07d5d969e61e7936ed043911008f4816d663de373fd23515219c8038dd22e5838af7df1678a0134a6

        Download Submit
      • F:\$RECYCLE.BIN\S-1-5-21-2721934792-624042501-2768869379-1000\DDDDDDDDDDD
        Filesize

        129B

        MD5

        f7f167bbb2eeca5aae378cbe17ffe736

        SHA1

        ef6076f3b52dcd869b4ef5b2cee99ec129205cbf

        SHA256

        603a8bc5915329ae851a733aad5c3273bd5ecb7607dc71541d1171a7e0eab540

        SHA512

        bb80c75388e458bff58492c51a7a64af9a99b1ee6f98374087ee5dea2642bd7b9a3509730e4d2fe2568668576bb24c0c68bd8a1ebdd259d0242e5ec708ccfbd7

        Download Submit
      • \ProgramData\2607.tmp
        Filesize

        14KB

        MD5

        294e9f64cb1642dd89229fff0592856b

        SHA1

        97b148c27f3da29ba7b18d6aee8a0db9102f47c9

        SHA256

        917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

        SHA512

        b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

        Download Submit
      • memory/2124-865-0x000000007EF20000-0x000000007EF21000-memory.dmp
        Filesize

        4KB

        Download
      • memory/2124-864-0x000000007EF80000-0x000000007EF81000-memory.dmp
        Filesize

        4KB

        Download
      • memory/2124-863-0x00000000003B0000-0x00000000003F0000-memory.dmp
        Filesize

        256KB

        Download
      • memory/2124-862-0x000000007EFA0000-0x000000007EFA1000-memory.dmp
        Filesize

        4KB

        Download
      • memory/2124-894-0x000000007EF40000-0x000000007EF41000-memory.dmp
        Filesize

        4KB

        Download
      • memory/2124-895-0x000000007EF60000-0x000000007EF61000-memory.dmp
        Filesize

        4KB

        Download
      • memory/2856-0-0x0000000000360000-0x00000000003A0000-memory.dmp
        Filesize

        256KB

        Download