Overview

overview

10

Static

static

3

5b3a0b1b89...83.exe

windows7-x64

10

5b3a0b1b89...83.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02-10-2024 14:57

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General

  • Target

    5b3a0b1b89ca463f56984cf67ea1719f1ddee770d1e14438e3fcf9b5301f2c83.exe

  • Size

    905KB

  • MD5

    d86383882515b7a9218d5f69924feadf

  • SHA1

    31183640972f2bc2e6906a271a88344201d37e4d

  • SHA256

    5b3a0b1b89ca463f56984cf67ea1719f1ddee770d1e14438e3fcf9b5301f2c83

  • SHA512

    f1761c4a3f4615f046644777c101545d86ff485eb01ce73d4042d0954368d32a651b3bc803b76f231d7d9beec1dc390e3732e4d310855e0f39ff3843e06cc757

  • SSDEEP

    6144:gI99bj5oxq4KhAQSdl70vRK/fMCmJZ/76jOMFMqnUqW5V4GVzOTeE:zbSdl70vRK/Ez/7tqnsD42XE

Score
10/10
rhysidacredential_accessdiscoveryransomwarespywarestealer

Malware Config

Signatures

  • Detects Rhysida ransom note 1 IoCs
  • Rhysida

    Rhysida is a ransomware that is written in C++ and discovered in 2023.

    ransomwarerhysida
  • Renames multiple (8145) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

    credential_accessstealer
  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Drops file in Program Files directory 64 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 3 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

    discovery
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b3a0b1b89ca463f56984cf67ea1719f1ddee770d1e14438e3fcf9b5301f2c83.exe
    "C:\Users\Admin\AppData\Local\Temp\5b3a0b1b89ca463f56984cf67ea1719f1ddee770d1e14438e3fcf9b5301f2c83.exe"
    1⤵
    • Drops startup file
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2352
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c cmd.exe /c start ping 127.0.0.1 -n 2 > nul && del /f /q "C:\Users\Admin\AppData\Local\Temp\C:\Users\Admin\AppData\Local\Temp\5b3a0b1b89ca463f56984cf67ea1719f1ddee770d1e14438e3fcf9b5301f2c83.exe"
      2⤵
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:536
      • C:\Windows\system32\cmd.exe
        cmd.exe /c start ping 127.0.0.1 -n 2
        3⤵
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:1600
        • C:\Windows\system32\PING.EXE
          ping 127.0.0.1 -n 2
          4⤵
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:1212

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\CriticalBreachDetected.pdf
    Filesize

    111KB

    MD5

    0adf25893c1bc2799ee640267ffbb792

    SHA1

    db68f3f821fb345b840bcdf0884ae99a6b76b462

    SHA256

    578185d1cb7df8bfdf1cbdcd04367830c817c37bca16c962dd6b355eebad2594

    SHA512

    e68994a4a58bdaab8bfb1277997999297af997dbea3a066def2cc5cafe6f22616333de7149253f619528afb6928019f210dfcd38a7e9f618cf47b8bd1b01d6d9

    Download Submit

  • memory/2352-7077-0x0000000000400000-0x00000000004F1000-memory.dmp

    Filesize

    964KB

    Download

  • memory/2352-10382-0x0000000000400000-0x00000000004F1000-memory.dmp

    Filesize

    964KB

    Download

  • memory/2352-10383-0x0000000000400000-0x00000000004F1000-memory.dmp

    Filesize

    964KB

    Download

  • memory/2352-10384-0x0000000000400000-0x00000000004F1000-memory.dmp

    Filesize

    964KB

    Download