Analysis

  • max time kernel
    125s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220310-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 4 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:3376
    • C:\Users\Admin\AppData\Local\Temp\f58f96fb0e09e7ddc4a37caa32783b675222b4b97cd08008eaa8538bacc8d035.exe
      "C:\Users\Admin\AppData\Local\Temp\f58f96fb0e09e7ddc4a37caa32783b675222b4b97cd08008eaa8538bacc8d035.exe"
      2⤵
        PID:3708
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3708 -s 1320
          3⤵
          • Program crash
          PID:2280
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3708 -ip 3708
      1⤵
        PID:1892

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/3376-137-0x0000000000560000-0x0000000000567000-memory.dmp

        Filesize

        28KB

      • memory/3708-138-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB