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Analysis

  • max time kernel
    141s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    11/06/2022, 16:40

General

  • Target

    IMG_106_680_74_80.exe

  • Size

    381KB

  • MD5

    e05e738dcb98a9f8c125138b492f82e5

  • SHA1

    02f9a41a35cc4794456fbc48b8e0245e622eab69

  • SHA256

    9b26547086a1489e5534452021694af3a565fe76926e671112be4852947a5d27

  • SHA512

    4728be50ea680648b8dc2b739e54d2d4b4bc5a901dbd75cb8092175c5516d78696580e7804de2326fa839570e61906ccd533b140431a3ad413fde050ed5bbbd0

Malware Config

Extracted

Family

oski

C2

osiq.icu

Signatures

  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\IMG_106_680_74_80.exe
    "C:\Users\Admin\AppData\Local\Temp\IMG_106_680_74_80.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1888
    • C:\Users\Admin\AppData\Local\Temp\IMG_106_680_74_80.exe
      C:\Users\Admin\AppData\Local\Temp\IMG_106_680_74_80.exe
      2⤵
        PID:548
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 548 -s 1336
          3⤵
          • Program crash
          PID:2696
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 548 -ip 548
      1⤵
        PID:2088

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/548-134-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/548-135-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/548-136-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/548-137-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/548-138-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/1888-130-0x00000000002F0000-0x0000000000352000-memory.dmp

        Filesize

        392KB

      • memory/1888-131-0x0000000004D30000-0x0000000004DA6000-memory.dmp

        Filesize

        472KB

      • memory/1888-132-0x0000000004CE0000-0x0000000004CFE000-memory.dmp

        Filesize

        120KB