Analysis

  • max time kernel
    4294183s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    28-03-2022 18:10

General

  • Target

    f58f96fb0e09e7ddc4a37caa32783b675222b4b97cd08008eaa8538bacc8d035.exe

  • Size

    261KB

  • MD5

    ba2af377d1a970e8e083e4c4cec745e2

  • SHA1

    a3d2ca408a97ddca60f581cba48d3f5e74a4fb17

  • SHA256

    f58f96fb0e09e7ddc4a37caa32783b675222b4b97cd08008eaa8538bacc8d035

  • SHA512

    eb854f2ee870162f39cd1678e2f88cd99dadf0e281237a66a14be6b75be489593236d6aabfa69df76b1a31a5cf1e4ef77a913e06bdd022fc957c850d26a65e06

Malware Config

Extracted

Family

oski

C2

darkangel.ac.ug

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\f58f96fb0e09e7ddc4a37caa32783b675222b4b97cd08008eaa8538bacc8d035.exe
    "C:\Users\Admin\AppData\Local\Temp\f58f96fb0e09e7ddc4a37caa32783b675222b4b97cd08008eaa8538bacc8d035.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:628
    • C:\Users\Admin\AppData\Local\Temp\f58f96fb0e09e7ddc4a37caa32783b675222b4b97cd08008eaa8538bacc8d035.exe
      "C:\Users\Admin\AppData\Local\Temp\f58f96fb0e09e7ddc4a37caa32783b675222b4b97cd08008eaa8538bacc8d035.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:972
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 972 -s 780
        3⤵
        • Program crash
        PID:1664

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/628-56-0x0000000075B01000-0x0000000075B03000-memory.dmp

    Filesize

    8KB

  • memory/628-58-0x0000000000290000-0x0000000000297000-memory.dmp

    Filesize

    28KB

  • memory/972-60-0x0000000000400000-0x0000000000434000-memory.dmp

    Filesize

    208KB