Analysis

  • max time kernel
    120s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    15/01/2025, 16:17

General

  • Target
    JaffaCakes118_5bf1b2b77a3a8b708088dd409a3ee85c.exe
  • Size 675KB
  • Sample250115-tree4szjar
  • SHA256 1c458e2f8154cb14443da781df0dd13c172ee89a175214bf785e7a0461fedb25
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 20 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • NSIS installer 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5bf1b2b77a3a8b708088dd409a3ee85c.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5bf1b2b77a3a8b708088dd409a3ee85c.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1860
    • C:\Users\Admin\AppData\Local\Temp\nst937A.tmp\stubdl.exe
      C:\Users\Admin\AppData\Local\Temp\nst937A.tmp\stubdl.exe ~URL Parts Error~~~~URL Parts Error~URL Parts Error~~#~4633~4651~~URL Parts Error~~SendRequest Error~62-CA-C3-60-41-A9~#~~~SendRequest Error~
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2796

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        GetVersion.dll

        • Path \Users\Admin\AppData\Local\Temp\nst937A.tmp\GetVersion.dll
        • Size 6KB
        • SHA256 7d76c7dd8f7cd5a87e0118dacb434db3971a049501e22a5f4b947154621ab3d4
        • MD5 SHA1 SHA512 SSDEEP

        Math.dll

        • Path \Users\Admin\AppData\Local\Temp\nst937A.tmp\Math.dll
        • Size 66KB
        • SHA256 0598f7d83db44929b7170c1285457b52b4281185f63ced102e709bf065f10d67
        • MD5 SHA1 SHA512 SSDEEP

        System.dll

        • Path \Users\Admin\AppData\Local\Temp\nst937A.tmp\System.dll
        • Size 11KB
        • SHA256 dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
        • MD5 SHA1 SHA512 SSDEEP

        UserInfo.dll

        • Path \Users\Admin\AppData\Local\Temp\nst937A.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5
        • MD5 SHA1 SHA512

        intlib.dll

        • Path \Users\Admin\AppData\Local\Temp\nst937A.tmp\intlib.dll
        • Size 24KB
        • SHA256 983859570099b941c19d5eb9755eda19dd21f63e8ccad70f6e93f055c329d341
        • MD5 SHA1 SHA512 SSDEEP

        nsDialogs.dll

        • Path \Users\Admin\AppData\Local\Temp\nst937A.tmp\nsDialogs.dll
        • Size 9KB
        • SHA256 e31ad6c6e82e603378cb6b80e67d0e0dcd9cf384e1199ac5a65cb4935680021a
        • MD5 SHA1 SHA512 SSDEEP

        registry.dll

        • Path \Users\Admin\AppData\Local\Temp\nst937A.tmp\registry.dll
        • Size 16KB
        • SHA256 ae53f8e00574a87dd243fdf344141417cfe2af318c6c5e363a030d727a6c75d1
        • MD5 SHA1 SHA512 SSDEEP

        stubdl.exe

        • Path \Users\Admin\AppData\Local\Temp\nst937A.tmp\stubdl.exe
        • Size 80KB
        • SHA256 9c068bc2ffd61cf0f25372800562a12952a75aef3bbe8a22ab23e86edb606d9a
        • MD5 SHA1 SHA512 SSDEEP

        memory/1860-50-0x00000000004E0000-0x00000000004FA000-memory.dmp