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Analysis

  • max time kernel
    117s
  • max time network
    115s
  • platform
    windows7_x64
  • resource
    win7-20220414-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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 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:1668
    • 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⤵
      • Suspicious use of WriteProcessMemory
      PID:772
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 772 -s 784
        3⤵
        • Program crash
        PID:1552

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/772-67-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/772-72-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/772-63-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/772-70-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/772-58-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/772-59-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/772-65-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/772-61-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1668-54-0x0000000001380000-0x00000000013E2000-memory.dmp

    Filesize

    392KB

  • memory/1668-55-0x00000000001F0000-0x00000000001FA000-memory.dmp

    Filesize

    40KB

  • memory/1668-57-0x0000000075EF1000-0x0000000075EF3000-memory.dmp

    Filesize

    8KB

  • memory/1668-56-0x00000000002C0000-0x00000000002E4000-memory.dmp

    Filesize

    144KB