Overview

overview

10

Static

static

3

ad9c879c3f...34.exe

windows7-x64

10

ad9c879c3f...34.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    95s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-02-2025 10:38

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General

  • Target

    ad9c879c3f77900ec729a266030e743c8626d826bc7a88a9255ac43d29019534.exe

  • Size

    120KB

  • MD5

    0dca2b823cac7c0340ee76ef28d8e056

  • SHA1

    90e9ca8592d6c63e2fd73e8027e060a4d72e2fdb

  • SHA256

    ad9c879c3f77900ec729a266030e743c8626d826bc7a88a9255ac43d29019534

  • SHA512

    c2a11c45ce4023e0475c1c072c3b25f40249d3dbb507e72fc060616fd9bf4f38f2823738a85811018fddfcd5d47c655d57c93c7a6ccfcf515f2e197b1bcb96e6

  • SSDEEP

    3072:6La94GN7fiIEAeLHJx0snnczgbCn7BDdtMd8WhWuFOPMI/2WddUXE:6La94GN7fiIEAeLHJx0WCntdtMieZg0g

Score
10/10
isrstealerbootkitdiscoverypersistencespywarestealertrojan

Malware Config

Signatures

  • ISR Stealer

    ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

    trojanstealerisrstealer
  • ISR Stealer payload 3 IoCs
  • Isrstealer family
    isrstealer
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spywarestealer
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ad9c879c3f77900ec729a266030e743c8626d826bc7a88a9255ac43d29019534.exe
    "C:\Users\Admin\AppData\Local\Temp\ad9c879c3f77900ec729a266030e743c8626d826bc7a88a9255ac43d29019534.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1076
    • C:\Users\Admin\AppData\Local\Temp\ad9c879c3f77900ec729a266030e743c8626d826bc7a88a9255ac43d29019534.exe
      "C:\Users\Admin\AppData\Local\Temp\ad9c879c3f77900ec729a266030e743c8626d826bc7a88a9255ac43d29019534.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1452

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1452-2-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

    Download

  • memory/1452-4-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

    Download

  • memory/1452-9-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

    Download