Overview

overview

10

Static

static

8

b4244fea5f...6c.exe

windows7_x64

10

b4244fea5f...6c.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    152s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    02-05-2022 18:28

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General

  • Target

    b4244fea5f2374b54dcd5fed007ec2007653201e1caa7f6bcb70a8b50dce496c.exe

  • Size

    196KB

  • MD5

    09a91d028245ee4a2a788682b00c993d

  • SHA1

    399ff8548e0371c15b633bf6b02719dff1d27557

  • SHA256

    b4244fea5f2374b54dcd5fed007ec2007653201e1caa7f6bcb70a8b50dce496c

  • SHA512

    d92e5aedb1fe17e9432c3a39699da3343cb24d85a4cd110386c3d3a34ebbb5ebb180e3e06cf8e8804790408f3ee3d5b0c70574175b04e9d5b017e9cd0fa51c77

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 5 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) 64 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 2 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 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b4244fea5f2374b54dcd5fed007ec2007653201e1caa7f6bcb70a8b50dce496c.exe
    "C:\Users\Admin\AppData\Local\Temp\b4244fea5f2374b54dcd5fed007ec2007653201e1caa7f6bcb70a8b50dce496c.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:452
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1760
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2000
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:460
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:984
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1520
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:684
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:336

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/452-54-0x0000000075361000-0x0000000075363000-memory.dmp

        Filesize

        8KB

        Download

      • memory/452-58-0x000000000531A000-0x000000000532D000-memory.dmp

        Filesize

        76KB

        Download

      • memory/452-59-0x0000000000020000-0x0000000000039000-memory.dmp

        Filesize

        100KB

        Download

      • memory/452-60-0x0000000000400000-0x000000000515A000-memory.dmp

        Filesize

        77.4MB

        Download

      • memory/460-57-0x0000000000000000-mapping.dmp

        Download

      • memory/684-63-0x0000000000000000-mapping.dmp

        Download

      • memory/984-61-0x0000000000000000-mapping.dmp

        Download

      • memory/1520-62-0x0000000000000000-mapping.dmp

        Download

      • memory/1760-55-0x0000000000000000-mapping.dmp

        Download

      • memory/2000-56-0x0000000000000000-mapping.dmp

        Download