Overview

overview

10

Static

static

3929729e7b...34.exe

windows7_x64

10

3929729e7b...34.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    25-06-2022 17:37

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General

  • Target

    3929729e7b0f42902887cc1739b6dc23a2ae916e476e6ed32177d26a52f82d34.exe

  • Size

    200KB

  • MD5

    fd80e80c66e845241f572f13aaf0d9d0

  • SHA1

    2af2cc6c7840e7a32e9460d8463a6d8a9c22c59a

  • SHA256

    3929729e7b0f42902887cc1739b6dc23a2ae916e476e6ed32177d26a52f82d34

  • SHA512

    424119a5989754e12cda7e4d66f0971afc28cd5f0dfcb1c125b2ff283b05c31617ec9b0fdaea815f7331c5dee7623b16d56028a90fac5d40c49f5e173d20c26d

Score
10/10
dharmapersistenceransomware

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
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops desktop.ini file(s) 3 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • 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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3929729e7b0f42902887cc1739b6dc23a2ae916e476e6ed32177d26a52f82d34.exe
    "C:\Users\Admin\AppData\Local\Temp\3929729e7b0f42902887cc1739b6dc23a2ae916e476e6ed32177d26a52f82d34.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:4772
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5024
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2712
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2936
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:904

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Defense Evasion

    File Deletion

    2
    T1107

    Modify Registry

    1
    T1112

    Credential Access

    Discovery

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Inhibit System Recovery

    2
    T1490

    Replay Monitor

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    Downloads

    • memory/2712-135-0x0000000000000000-mapping.dmp
      Download
    • memory/2936-136-0x0000000000000000-mapping.dmp
      Download
    • memory/4772-130-0x00000000050DE000-0x00000000050F1000-memory.dmp
      Filesize

      76KB

      Download
    • memory/4772-131-0x0000000006BE0000-0x0000000006BF9000-memory.dmp
      Filesize

      100KB

      Download
    • memory/4772-132-0x00000000050DE000-0x00000000050F1000-memory.dmp
      Filesize

      76KB

      Download
    • memory/4772-133-0x0000000000400000-0x0000000004E8B000-memory.dmp
      Filesize

      74.5MB

      Download
    • memory/5024-134-0x0000000000000000-mapping.dmp
      Download