Analysis

  • max time kernel
    95s
  • max time network
    99s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    05/10/2022, 11:04

General

  • Target
    a6c3eaa47e2d0922063f85495282b1e3.exe
  • Size 380KB
  • Sample221005-m591lsedan
  • SHA256 30e2e162c2da2940451688e73c7797bde2d9ee6806df5d68ebefa35812423d40
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Lokibot

    Lokibot is a Password and CryptoCoin Wallet Stealer.

  • Checks QEMU agent file 2 TTPs 2 IoCs

    Checks presence of QEMU agent, possibly to detect virtualization.

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a6c3eaa47e2d0922063f85495282b1e3.exe
    "C:\Users\Admin\AppData\Local\Temp\a6c3eaa47e2d0922063f85495282b1e3.exe"
    1⤵
    • Checks QEMU agent file
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Drops file in Program Files directory
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1424
    • C:\Users\Admin\AppData\Local\Temp\a6c3eaa47e2d0922063f85495282b1e3.exe
      "C:\Users\Admin\AppData\Local\Temp\a6c3eaa47e2d0922063f85495282b1e3.exe"
      2⤵
      • Checks QEMU agent file
      • Accesses Microsoft Outlook profiles
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1252

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        System.dll

        • Path \Users\Admin\AppData\Local\Temp\nsj5A14.tmp\System.dll
        • Size 11KB
        • SHA256 e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27
        • MD5 SHA1 SHA512 SSDEEP

        memory/1252-64-0x00000000001C0000-0x00000000002C0000-memory.dmp

        memory/1252-68-0x0000000077490000-0x0000000077639000-memory.dmp

        memory/1252-60-0x0000000000400000-0x0000000001462000-memory.dmp

        memory/1252-65-0x00000000001C0000-0x00000000002C0000-memory.dmp

        memory/1252-73-0x00000000001C0000-0x00000000002C0000-memory.dmp

        memory/1252-72-0x0000000077670000-0x00000000777F0000-memory.dmp

        memory/1252-69-0x0000000077670000-0x00000000777F0000-memory.dmp

        memory/1252-71-0x0000000077670000-0x00000000777F0000-memory.dmp

        memory/1424-61-0x0000000077490000-0x0000000077639000-memory.dmp

        memory/1424-54-0x0000000076151000-0x0000000076153000-memory.dmp

        memory/1424-70-0x0000000077670000-0x00000000777F0000-memory.dmp

        memory/1424-63-0x0000000077670000-0x00000000777F0000-memory.dmp

        memory/1424-56-0x00000000026A0000-0x00000000032EA000-memory.dmp

        memory/1424-62-0x0000000077670000-0x00000000777F0000-memory.dmp