Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    14-11-2021 06:42

General

  • Target

    BB483E0CB23EAF8FAAA78E28B5899211.exe

  • Size

    2.5MB

  • MD5

    bb483e0cb23eaf8faaa78e28b5899211

  • SHA1

    80d17f4bb56fd99c557fbe72debe057bbf54c7f9

  • SHA256

    4a0f711887436496355320a602ea4141f5fceed48cb960e638d9daaee70dd077

  • SHA512

    be11b7de917665c1c9f993025e1960f95c3dd03c7ce8146bdc5b4038efbd9a52104780681fdaf6f3d70be8f7c717eeabafb964364b422ed15b4e9add79cc754f

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

0.tcp.ngrok.io:11722

Mutex

aadcb7aa3c0523a52c6ea2a71565f2d7

Attributes
  • reg_key

    aadcb7aa3c0523a52c6ea2a71565f2d7

  • splitter

    |'|'|

Extracted

Family

redline

Botnet

@xxtrez

C2

178.20.41.235:41993

Signatures

  • Echelon

    Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 6 IoCs
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 5 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 37 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BB483E0CB23EAF8FAAA78E28B5899211.exe
    "C:\Users\Admin\AppData\Local\Temp\BB483E0CB23EAF8FAAA78E28B5899211.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3120
    • C:\Users\Admin\AppData\Local\Temp\1121.exe
      "C:\Users\Admin\AppData\Local\Temp\1121.exe"
      2⤵
      • Executes dropped EXE
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1668
      • C:\Users\Admin\AppData\Local\Temp\Gifanio.exe
        "C:\Users\Admin\AppData\Local\Temp\Gifanio.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2848
        • C:\ProgramData\Decoder.exe
          "C:\ProgramData\Decoder.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:1000
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\.cmd""
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:740
          • C:\Windows\system32\timeout.exe
            timeout 4
            5⤵
            • Delays execution with timeout.exe
            PID:1228
    • C:\Users\Admin\AppData\Local\Temp\....exe
      "C:\Users\Admin\AppData\Local\Temp\....exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2344
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\....exe" "....exe" ENABLE
        3⤵
          PID:1820
      • C:\Users\Admin\AppData\Local\Temp\CSGhost-v4.2.1.exe
        "C:\Users\Admin\AppData\Local\Temp\CSGhost-v4.2.1.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:3796
    • C:\Windows\system32\OpenWith.exe
      C:\Windows\system32\OpenWith.exe -Embedding
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:1224

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\Decoder.exe

      MD5

      29be19c1f19addea5fa444c00d90ee4d

      SHA1

      9b4acc191b65873495aed30def38b8b681804976

      SHA256

      9b561a403c83d0a8c9855e112a02aae26b769e2532d3dc636d8118d6375c879d

      SHA512

      2660285c4eee62e609175015ffdb4d07aa179257e5c7cb03af06d213050d46211c0e4c3db37bdffcaff47a5586c43d2f512c4ecc13c25a816b01cd3c53bbcbf6

    • C:\ProgramData\Decoder.exe

      MD5

      29be19c1f19addea5fa444c00d90ee4d

      SHA1

      9b4acc191b65873495aed30def38b8b681804976

      SHA256

      9b561a403c83d0a8c9855e112a02aae26b769e2532d3dc636d8118d6375c879d

      SHA512

      2660285c4eee62e609175015ffdb4d07aa179257e5c7cb03af06d213050d46211c0e4c3db37bdffcaff47a5586c43d2f512c4ecc13c25a816b01cd3c53bbcbf6

    • C:\Users\Admin\AppData\Local\Temp\....exe

      MD5

      fdde1d3516bc22013fbcbf2fe859b438

      SHA1

      fe37d973f051ec3745116244ac335e6ba27344de

      SHA256

      566706c985369de4895038a444f07b392cd2ac41453af442d99792258a1fd9db

      SHA512

      b5e5930a0f3df61731230018aa69d925591cb349e92901e57d0b0a32642bd2e9b4b39efc40df3d4cdcb8327e6fc35c463de34c862d87abc0c72c29e2e1e2ae3d

    • C:\Users\Admin\AppData\Local\Temp\....exe

      MD5

      fdde1d3516bc22013fbcbf2fe859b438

      SHA1

      fe37d973f051ec3745116244ac335e6ba27344de

      SHA256

      566706c985369de4895038a444f07b392cd2ac41453af442d99792258a1fd9db

      SHA512

      b5e5930a0f3df61731230018aa69d925591cb349e92901e57d0b0a32642bd2e9b4b39efc40df3d4cdcb8327e6fc35c463de34c862d87abc0c72c29e2e1e2ae3d

    • C:\Users\Admin\AppData\Local\Temp\.cmd

      MD5

      73712247036b6a24d16502c57a3e5679

      SHA1

      65ca9edadb0773fc34db7dfefe9e6416f1ac17fa

      SHA256

      8bd49d7e7e6b2c2dc16a4cb0eebb8f28892775fad56c9e4aaa22d59f01883cd0

      SHA512

      548eef10b0118f7d907fa19c12de68b47278afffb3eb9460621efb2b711ebcf6b90d0ea1c077fc480e032bf241fb3f8cc995ec1373e301446f89f1a74a6309de

    • C:\Users\Admin\AppData\Local\Temp\1121.exe

      MD5

      2571fa1b3ef68ae3a8d31ecf9cc46cf5

      SHA1

      287a43c137932c591a112bd2812f6a438807def6

      SHA256

      8ec8670b61cc47c37d8efb97cf0b601aca8f9317d5e8d86a7fea2ef98d685c9e

      SHA512

      362fd057a9fd94e8c5be3e3b9090bc7fb89758f9c6b151684ccbaf0d67f914743046da7a6e3209aef892590a6ec7e15ef087f883843005f4c55cf5ac1a8c2bdc

    • C:\Users\Admin\AppData\Local\Temp\1121.exe

      MD5

      2571fa1b3ef68ae3a8d31ecf9cc46cf5

      SHA1

      287a43c137932c591a112bd2812f6a438807def6

      SHA256

      8ec8670b61cc47c37d8efb97cf0b601aca8f9317d5e8d86a7fea2ef98d685c9e

      SHA512

      362fd057a9fd94e8c5be3e3b9090bc7fb89758f9c6b151684ccbaf0d67f914743046da7a6e3209aef892590a6ec7e15ef087f883843005f4c55cf5ac1a8c2bdc

    • C:\Users\Admin\AppData\Local\Temp\CSGhost-v4.2.1.exe

      MD5

      0b8c740f448c18aa9124a025c1e44faf

      SHA1

      d854df7a1a799d575d2f35a26d4abd57129d7331

      SHA256

      921665047eb9e62e9896ffe4e95aed16e4c5d47f6a059932bda6c76d7082cd2c

      SHA512

      35e5ca3bd517150eb4525505d4807fd7118045fc069456fb3a3bb6c505e1f1fbef85c831500a0c9f0cb18fb2758f7fba4c2d1ab8166cdd20d47a3a0ad78adac8

    • C:\Users\Admin\AppData\Local\Temp\CSGhost-v4.2.1.exe

      MD5

      0b8c740f448c18aa9124a025c1e44faf

      SHA1

      d854df7a1a799d575d2f35a26d4abd57129d7331

      SHA256

      921665047eb9e62e9896ffe4e95aed16e4c5d47f6a059932bda6c76d7082cd2c

      SHA512

      35e5ca3bd517150eb4525505d4807fd7118045fc069456fb3a3bb6c505e1f1fbef85c831500a0c9f0cb18fb2758f7fba4c2d1ab8166cdd20d47a3a0ad78adac8

    • C:\Users\Admin\AppData\Local\Temp\Gifanio.exe

      MD5

      12f9f08ac18aa9de5328082627a2411a

      SHA1

      05d0e5cdcbee308ea44db8dcc393d3c4362dac3b

      SHA256

      9752828f298e3cb7cc5189540cbc103bc6ffe1441e59b94daa4f0ea1c815c197

      SHA512

      e16c9fab45c6d52b20a795c1450045e26708655745faf3a2b008a8f7a779a3dcb6cdea89e07a3766befc3e5e3a8876f3ce5f35882aaddb5a9cb0d2f71c88aa55

    • C:\Users\Admin\AppData\Local\Temp\Gifanio.exe

      MD5

      12f9f08ac18aa9de5328082627a2411a

      SHA1

      05d0e5cdcbee308ea44db8dcc393d3c4362dac3b

      SHA256

      9752828f298e3cb7cc5189540cbc103bc6ffe1441e59b94daa4f0ea1c815c197

      SHA512

      e16c9fab45c6d52b20a795c1450045e26708655745faf3a2b008a8f7a779a3dcb6cdea89e07a3766befc3e5e3a8876f3ce5f35882aaddb5a9cb0d2f71c88aa55

    • memory/740-137-0x0000000000000000-mapping.dmp

    • memory/1000-145-0x0000000004940000-0x0000000004941000-memory.dmp

      Filesize

      4KB

    • memory/1000-144-0x00000000048A0000-0x00000000048A1000-memory.dmp

      Filesize

      4KB

    • memory/1000-143-0x0000000004F10000-0x0000000004F11000-memory.dmp

      Filesize

      4KB

    • memory/1000-141-0x0000000000090000-0x0000000000091000-memory.dmp

      Filesize

      4KB

    • memory/1000-146-0x0000000004980000-0x0000000004981000-memory.dmp

      Filesize

      4KB

    • memory/1000-147-0x0000000004BB0000-0x0000000004BB1000-memory.dmp

      Filesize

      4KB

    • memory/1000-135-0x0000000000000000-mapping.dmp

    • memory/1000-148-0x00000000048F0000-0x00000000048F1000-memory.dmp

      Filesize

      4KB

    • memory/1228-140-0x0000000000000000-mapping.dmp

    • memory/1668-118-0x0000000000000000-mapping.dmp

    • memory/1820-149-0x0000000000000000-mapping.dmp

    • memory/2344-127-0x00000000012D0000-0x000000000141A000-memory.dmp

      Filesize

      1.3MB

    • memory/2344-121-0x0000000000000000-mapping.dmp

    • memory/2848-134-0x00000257A9980000-0x00000257A9982000-memory.dmp

      Filesize

      8KB

    • memory/2848-133-0x0000025790F90000-0x0000025791001000-memory.dmp

      Filesize

      452KB

    • memory/2848-131-0x000002578F1A0000-0x000002578F1A1000-memory.dmp

      Filesize

      4KB

    • memory/2848-128-0x0000000000000000-mapping.dmp

    • memory/3796-123-0x0000000000000000-mapping.dmp