Resubmissions

17/10/2022, 13:58

221017-q93zmscac710

17/10/2022, 13:22

221017-qmg4nabhe210

17/10/2022, 05:59

221017-gpprvaahgp10

Analysis

  • max time kernel
    91s
  • max time network
    105s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/10/2022, 05:59

General

  • Target
    0b248d8cc9122111b96ed71172ef287726900529da9cdc8da9968a2d40f1191e.exe
  • Size 5.8MB
  • Sample221017-gpprvaahgp
  • SHA256 0b248d8cc9122111b96ed71172ef287726900529da9cdc8da9968a2d40f1191e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • redline

Botnet
  • +new10

C2
  • 95.217.81.67:15781

Attributes
  • auth_value

    71466e289c1fa2064de510a850454a2a

Signatures

  • RedLine

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

  • RedLine payload 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0b248d8cc9122111b96ed71172ef287726900529da9cdc8da9968a2d40f1191e.exe
    "C:\Users\Admin\AppData\Local\Temp\0b248d8cc9122111b96ed71172ef287726900529da9cdc8da9968a2d40f1191e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Users\Admin\AppData\Local\Temp\0b248d8cc9122111b96ed71172ef287726900529da9cdc8da9968a2d40f1191e.exe
      "C:\Users\Admin\AppData\Local\Temp\0b248d8cc9122111b96ed71172ef287726900529da9cdc8da9968a2d40f1191e.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2040
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c echo %temp%
        3⤵
          PID:1976
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\bjk.exe
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:332
          • C:\Users\Admin\AppData\Local\Temp\bjk.exe
            C:\Users\Admin\AppData\Local\Temp\bjk.exe
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2272

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          VCRUNTIME140.dll

          • Path C:\Users\Admin\AppData\Local\Temp\_MEI15162\VCRUNTIME140.dll
          • Size 94KB
          • SHA256 ded5adaa94341e6c62aea03845762591666381dca30eb7c17261dd154121b83e
          • MD5 SHA1 SHA512 SSDEEP

          VCRUNTIME140.dll

          • Path C:\Users\Admin\AppData\Local\Temp\_MEI15162\VCRUNTIME140.dll
          • Size 94KB
          • SHA256 ded5adaa94341e6c62aea03845762591666381dca30eb7c17261dd154121b83e
          • MD5 SHA1 SHA512 SSDEEP

          base_library.zip

          • Path C:\Users\Admin\AppData\Local\Temp\_MEI15162\base_library.zip
          • Size 1.0MB
          • SHA256 4d6efa9a88b15e659864da0c0c19f6faf3bb88a6ee6623fa21114cd7f14c999f
          • MD5 SHA1 SHA512 SSDEEP

          python310.dll

          • Path C:\Users\Admin\AppData\Local\Temp\_MEI15162\python310.dll
          • Size 4.2MB
          • SHA256 8d0bec69554317ccf1796c505d749d5c9f3be74ccbfce1d9e4d5fe64a536ae9e
          • MD5 SHA1 SHA512 SSDEEP

          python310.dll

          • Path C:\Users\Admin\AppData\Local\Temp\_MEI15162\python310.dll
          • Size 4.2MB
          • SHA256 8d0bec69554317ccf1796c505d749d5c9f3be74ccbfce1d9e4d5fe64a536ae9e
          • MD5 SHA1 SHA512 SSDEEP

          bjk.exe

          • Path C:\Users\Admin\AppData\Local\Temp\bjk.exe
          • Size 359KB
          • SHA256 49e4eb7458946b065eccf54804896b3c575b1661fe8bde38987214086be5ce2d
          • MD5 SHA1 SHA512 SSDEEP

          bjk.exe

          • Path C:\Users\Admin\AppData\Local\Temp\bjk.exe
          • Size 359KB
          • SHA256 49e4eb7458946b065eccf54804896b3c575b1661fe8bde38987214086be5ce2d
          • MD5 SHA1 SHA512 SSDEEP

          memory/2272-147-0x000000000AC40000-0x000000000AC7C000-memory.dmp

          memory/2272-143-0x0000000000AA0000-0x0000000000B00000-memory.dmp

          memory/2272-144-0x000000000B140000-0x000000000B758000-memory.dmp

          memory/2272-145-0x000000000ACB0000-0x000000000ADBA000-memory.dmp

          memory/2272-146-0x000000000ABE0000-0x000000000ABF2000-memory.dmp

          memory/2272-148-0x000000000AF80000-0x000000000B012000-memory.dmp

          memory/2272-149-0x000000000BD10000-0x000000000C2B4000-memory.dmp

          memory/2272-150-0x000000000B020000-0x000000000B086000-memory.dmp

          memory/2272-151-0x000000000C490000-0x000000000C652000-memory.dmp

          memory/2272-152-0x000000000CB90000-0x000000000D0BC000-memory.dmp

          memory/2272-153-0x000000000C760000-0x000000000C7D6000-memory.dmp

          memory/2272-154-0x000000000C410000-0x000000000C460000-memory.dmp