Analysis

  • max time kernel
    140s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    11-08-2024 10:59

General

  • Target

    5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe

  • Size

    680KB

  • MD5

    bc7f80814ad63a035fbf8e0b67b02155

  • SHA1

    a7d76dd02b12bb250f9f42101fda1fa235154710

  • SHA256

    5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c

  • SHA512

    ac336b61ad93d51e68784350d59d56d08ac947426c3570ed7f0dfbbbdfce24bd0c495c6f626d3edeb8de47a0f0a3a09701b33b78dbb7a7a1e0b1cd32f8d0991a

  • SSDEEP

    6144:nSiQrg69p5Ozn2zdCQ2I8EXAOteqM+Z4q6NHnfmDZET62KGUXtkJwov56hL:eBIzn2zd6EX6qM+Z4qufG6/PUyJw+A

Malware Config

Extracted

Family

oski

C2

himarkh.xyz

Signatures

  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • 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.

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe
    "C:\Users\Admin\AppData\Local\Temp\5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1884
    • C:\Users\Admin\AppData\Local\Temp\5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe
      "C:\Users\Admin\AppData\Local\Temp\5cd0759c1e566b6e74ef3f29a49a34a08ded2dc44408fccd41b5a9845573a34c.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2656
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2656 -s 764
        3⤵
        • Program crash
        PID:2568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1884-1-0x0000000000090000-0x0000000000190000-memory.dmp

    Filesize

    1024KB

  • memory/1884-2-0x0000000000360000-0x0000000000362000-memory.dmp

    Filesize

    8KB

  • memory/2656-3-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2656-5-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2656-6-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2656-7-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2656-9-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB