Overview

overview

10

Static

static

4840f8fa34...7c.exe

windows7_x64

10

4840f8fa34...7c.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    4294223s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    26-03-2022 14:20

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General

  • Target

    4840f8fa344b688714a5673e9649a3811fa39108ffb37a53800516ae97d37a7c.exe

  • Size

    550KB

  • MD5

    1a48cd506855222503e8c95f337c14a4

  • SHA1

    7523dbace6abb08eff872cf875e26519c3a3c41d

  • SHA256

    4840f8fa344b688714a5673e9649a3811fa39108ffb37a53800516ae97d37a7c

  • SHA512

    ed57359237109f1a9e7fc9dbcfeeafad757367bb0a70919ff8ea13e6bd0f5455ebb8b3b1ae64b6d33819d0b7c654d7fe63ace1f23cf6aa311b09c167b39d1d24

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

Signatures

  • Dharma

    Dharma is a ransomware that uses security software installation to hide malicious activities.

    ransomwaredharma
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops desktop.ini file(s) 13 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4840f8fa344b688714a5673e9649a3811fa39108ffb37a53800516ae97d37a7c.exe
    "C:\Users\Admin\AppData\Local\Temp\4840f8fa344b688714a5673e9649a3811fa39108ffb37a53800516ae97d37a7c.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:280
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1672
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1444
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1304
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:984

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/280-54-0x0000000076851000-0x0000000076853000-memory.dmp

      Filesize

      8KB

      Download

    • memory/280-55-0x0000000000400000-0x000000000048E000-memory.dmp

      Filesize

      568KB

      Download

    • memory/280-57-0x00000000003B0000-0x00000000003CD000-memory.dmp

      Filesize

      116KB

      Download

    • memory/1304-59-0x0000000000000000-mapping.dmp

      Download

    • memory/1444-58-0x0000000000000000-mapping.dmp

      Download

    • memory/1672-56-0x0000000000000000-mapping.dmp

      Download