Analysis

  • max time kernel
    45s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19-01-2023 17:10

General

  • Target

    19d2d1ecaa693fb74b39ac3f3a049f335dafba5d5669b921aab1a2c486ec77df.exe

  • Size

    1.1MB

  • MD5

    863693e30254434532cd8a493f632565

  • SHA1

    f54dbac3ae13df6f842baf253b6e80b0c0a8b47a

  • SHA256

    19d2d1ecaa693fb74b39ac3f3a049f335dafba5d5669b921aab1a2c486ec77df

  • SHA512

    024f5be15c520b4f813b0f7509183666875e2fe6a5aac0e291f663b33e0f8c7c4a64f057278201de84af7aae6085edb54fb98e30890f8136a84d7afb5e02670b

  • SSDEEP

    12288:I5dMOMt/9NH/eNYmItwRHAR315ycgVkIHG9scLKt97NXTPTFyPPeIETaq:4VYLHY0tMgyJZcOt7dyh

Malware Config

Extracted

Family

fickerstealer

C2

91.240.118.51:80

Signatures

  • Fickerstealer

    Ficker is an infostealer written in Rust and ASM.

  • 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.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\19d2d1ecaa693fb74b39ac3f3a049f335dafba5d5669b921aab1a2c486ec77df.exe
    "C:\Users\Admin\AppData\Local\Temp\19d2d1ecaa693fb74b39ac3f3a049f335dafba5d5669b921aab1a2c486ec77df.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1664
    • C:\Users\Admin\AppData\Local\Temp\1674151867998.exe
      "C:\Users\Admin\AppData\Local\Temp\1674151867998.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1900
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\167415~1.EXE > nul
        3⤵
          PID:1432

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\1674151867998.exe

      Filesize

      5.2MB

      MD5

      1ae225cad8ed0bfe5566ac6978140c32

      SHA1

      a7d63db34b1148406d7a6a55423f7b314f9c8f42

      SHA256

      d7f233b5e2b7f8a629e127c72e0fddcd3fe2dd66a9e633c53b4acc22252f9c19

      SHA512

      29ac35df879d18352717ec6c9f2676261dc4d63fa34058cf1ea852d924f5142306ed5feac08f3b7d81b559e5ee72f04a67e2e94533daedebd47335e3f5c121ee

    • C:\Users\Admin\AppData\Local\Temp\1674151867998.exe

      Filesize

      5.2MB

      MD5

      1ae225cad8ed0bfe5566ac6978140c32

      SHA1

      a7d63db34b1148406d7a6a55423f7b314f9c8f42

      SHA256

      d7f233b5e2b7f8a629e127c72e0fddcd3fe2dd66a9e633c53b4acc22252f9c19

      SHA512

      29ac35df879d18352717ec6c9f2676261dc4d63fa34058cf1ea852d924f5142306ed5feac08f3b7d81b559e5ee72f04a67e2e94533daedebd47335e3f5c121ee

    • \Users\Admin\AppData\Local\Temp\1674151867998.exe

      Filesize

      5.2MB

      MD5

      1ae225cad8ed0bfe5566ac6978140c32

      SHA1

      a7d63db34b1148406d7a6a55423f7b314f9c8f42

      SHA256

      d7f233b5e2b7f8a629e127c72e0fddcd3fe2dd66a9e633c53b4acc22252f9c19

      SHA512

      29ac35df879d18352717ec6c9f2676261dc4d63fa34058cf1ea852d924f5142306ed5feac08f3b7d81b559e5ee72f04a67e2e94533daedebd47335e3f5c121ee

    • memory/1432-62-0x0000000000000000-mapping.dmp

    • memory/1664-54-0x0000000076181000-0x0000000076183000-memory.dmp

      Filesize

      8KB

    • memory/1664-55-0x0000000002060000-0x0000000002104000-memory.dmp

      Filesize

      656KB

    • memory/1664-56-0x0000000000400000-0x0000000000525000-memory.dmp

      Filesize

      1.1MB

    • memory/1664-61-0x0000000000400000-0x0000000000525000-memory.dmp

      Filesize

      1.1MB

    • memory/1900-58-0x0000000000000000-mapping.dmp