Analysis

  • max time kernel
    153s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    04/01/2024, 20:30

General

  • Target

    444b77c224199fbcb8e1241f999ea02b68e5cee7d74f262c160ae45d85cf1105.exe

  • Size

    978KB

  • MD5

    34371c7833c38fa441316f238961d9a2

  • SHA1

    74e99094f77642ef2d803188121a9c61e73139fe

  • SHA256

    444b77c224199fbcb8e1241f999ea02b68e5cee7d74f262c160ae45d85cf1105

  • SHA512

    aba20341168f6f78cecb302c1544ad617a6dc4d5e081cb3ffbcfe0e67c9a5708ce7e9d264de78eb620c3acea19cf37789f25a48dbb080ed16542ccc4b780386a

  • SSDEEP

    24576:VoyOrimyU/MAYycTwgadEhiU8BnM4XkEJ:CNyU/LYyQwdU8RkE

Malware Config

Signatures

  • Zebrocy

    Zebrocy is a backdoor created by Sofacy threat group and has multiple variants developed in different languages.

  • Zebrocy Go Variant 13 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 14 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops desktop.ini file(s) 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\444b77c224199fbcb8e1241f999ea02b68e5cee7d74f262c160ae45d85cf1105.exe
    "C:\Users\Admin\AppData\Local\Temp\444b77c224199fbcb8e1241f999ea02b68e5cee7d74f262c160ae45d85cf1105.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    PID:2740
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2128

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2740-0-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2740-1-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2740-2-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2740-3-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2740-4-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2740-48-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2740-55-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2740-285-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2740-301-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2740-323-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2740-395-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2740-986-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2740-1370-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2740-2573-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB