Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    25-01-2024 18:32

General

  • Target

    7536b74c17754363799df14fe70d3a92.exe

  • Size

    995KB

  • MD5

    7536b74c17754363799df14fe70d3a92

  • SHA1

    790969675e8cec28cf19c18625dd764884459b01

  • SHA256

    60d1297adb502d942493a794945336aea891d2c321476ef3349ac07726fca7c3

  • SHA512

    8f706b646a4a9c3549ffda3e14bfe5724c3287e0f4dfbe853888c7e529dedaccd00af2ed933fe1e7d21de26b88b96f2ffe08319570751215975f0a3524a4e8fd

  • SSDEEP

    12288:be4t9eZHlEWAxjvsMF3mKAk618T7xlkvvyrmT9EXvStCgEfW54n2iN1T:beVOsMdl6ixlYdT9So0e6n1H

Malware Config

Extracted

Family

oski

C2

http://2.56.59.226/www/

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 use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7536b74c17754363799df14fe70d3a92.exe
    "C:\Users\Admin\AppData\Local\Temp\7536b74c17754363799df14fe70d3a92.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1044
    • C:\Users\Admin\AppData\Local\Temp\7536b74c17754363799df14fe70d3a92.exe
      "C:\Users\Admin\AppData\Local\Temp\7536b74c17754363799df14fe70d3a92.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2704
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2704 -s 736
        3⤵
        • Program crash
        PID:1132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1044-18-0x0000000074990000-0x000000007507E000-memory.dmp

    Filesize

    6.9MB

  • memory/1044-1-0x0000000074990000-0x000000007507E000-memory.dmp

    Filesize

    6.9MB

  • memory/1044-2-0x00000000048A0000-0x00000000048E0000-memory.dmp

    Filesize

    256KB

  • memory/1044-3-0x0000000000350000-0x0000000000362000-memory.dmp

    Filesize

    72KB

  • memory/1044-4-0x0000000074990000-0x000000007507E000-memory.dmp

    Filesize

    6.9MB

  • memory/1044-5-0x00000000048A0000-0x00000000048E0000-memory.dmp

    Filesize

    256KB

  • memory/1044-6-0x0000000005790000-0x0000000005832000-memory.dmp

    Filesize

    648KB

  • memory/1044-7-0x0000000000460000-0x000000000049A000-memory.dmp

    Filesize

    232KB

  • memory/1044-0-0x0000000001310000-0x000000000140E000-memory.dmp

    Filesize

    1016KB

  • memory/2704-8-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2704-17-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2704-19-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2704-15-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2704-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2704-12-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2704-11-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2704-10-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2704-9-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2704-21-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB