Overview

overview

10

Static

static

3

b183b142d3...b0.exe

windows7-x64

10

b183b142d3...b0.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    02-10-2024 14:57

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General

  • Target

    b183b142d3c4e99ee07c3407b82858146fa61ded95be2e67ce920c8002309fb0.exe

  • Size

    906KB

  • MD5

    7cfba113342f78b5909f606c26fc1dc4

  • SHA1

    f9e65f0cb46128bdc218053e1549c5e584ab6cd5

  • SHA256

    b183b142d3c4e99ee07c3407b82858146fa61ded95be2e67ce920c8002309fb0

  • SHA512

    9339d2b22b074f0357dd1319d02e6675394bb6c9fbd5d6ac51bc5554c95b5d0044bf05e0c3626c4f79f9c0a48dcb0a4063a32cdd99531ee8071491b661cc24d2

  • SSDEEP

    6144:BYdNbzC+2VEIxgYClW0ClmQzrAczJPBv7ameMF87XUPwfO+jOT:SkLClW0ClmQzrtFBv767XcoO+

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 (8183) 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\b183b142d3c4e99ee07c3407b82858146fa61ded95be2e67ce920c8002309fb0.exe
    "C:\Users\Admin\AppData\Local\Temp\b183b142d3c4e99ee07c3407b82858146fa61ded95be2e67ce920c8002309fb0.exe"
    1⤵
    • Drops startup file
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2360
    • 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\b183b142d3c4e99ee07c3407b82858146fa61ded95be2e67ce920c8002309fb0.exe"
      2⤵
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:680
      • 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:2636
        • C:\Windows\system32\PING.EXE
          ping 127.0.0.1 -n 2
          4⤵
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:2508

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

    2d94bc3146c72f6f8caf958efcd32fa3

    SHA1

    0be34aaca455daa62a296b56d025f396f066e5d5

    SHA256

    3cc02a7e8dfb12a7f0fc44c80115f8bc6e460f7b39f32b02b2185ef8424a07ec

    SHA512

    6fc7d3c2081485dd94c88cd61516d218139d330cd057316d2ba118c090833f00ea34225fb3453a25cb1f2666073567c84553e33093cc02924b3534ff360ecb9f

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  • memory/2360-6663-0x0000000000400000-0x00000000004F2000-memory.dmp

    Filesize

    968KB

    Download

  • memory/2360-10418-0x0000000000400000-0x00000000004F2000-memory.dmp

    Filesize

    968KB

    Download

  • memory/2360-10419-0x0000000000400000-0x00000000004F2000-memory.dmp

    Filesize

    968KB

    Download

  • memory/2360-10420-0x0000000000400000-0x00000000004F2000-memory.dmp

    Filesize

    968KB

    Download