Overview

overview

10

Static

static

4bf86347bf...f0.exe

windows7_x64

10

4bf86347bf...f0.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    153s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    12-07-2022 08:10

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General

  • Target

    4bf86347bfc2a4afd27b058828613f5bce1a09d369ab8b650b4f71534a7d75f0.exe

  • Size

    757KB

  • MD5

    6c7215b113d0d0fad9835cb98113bc1f

  • SHA1

    ed921a96f3360f5b1fe67b957818b67a5cbaff62

  • SHA256

    4bf86347bfc2a4afd27b058828613f5bce1a09d369ab8b650b4f71534a7d75f0

  • SHA512

    2e2f1f090365c54085136fdc6e844f6b81249cf2b3505e25fa711a689e567e8eec6f5e60cf95875623cc175b88b49d62cc17019cb53246e10ea2f5702d54e787

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
  • Suspicious use of SetThreadContext 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 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4bf86347bfc2a4afd27b058828613f5bce1a09d369ab8b650b4f71534a7d75f0.exe
    "C:\Users\Admin\AppData\Local\Temp\4bf86347bfc2a4afd27b058828613f5bce1a09d369ab8b650b4f71534a7d75f0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3176
    • C:\Users\Admin\AppData\Local\Temp\4bf86347bfc2a4afd27b058828613f5bce1a09d369ab8b650b4f71534a7d75f0.exe
      C:\Users\Admin\AppData\Local\Temp\4bf86347bfc2a4afd27b058828613f5bce1a09d369ab8b650b4f71534a7d75f0.exe
      2⤵
      • 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:4088
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4616
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          4⤵
            PID:3960
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            4⤵
            • Interacts with shadow copies
            PID:4752
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:212

    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

    Loading Replay Monitor...

    Downloads

    • memory/3176-130-0x0000000002290000-0x00000000022C3000-memory.dmp
      Filesize

      204KB

      Download
    • memory/3960-139-0x0000000000000000-mapping.dmp
      Download
    • memory/4088-131-0x0000000000000000-mapping.dmp
      Download
    • memory/4088-132-0x0000000000400000-0x0000000000419000-memory.dmp
      Filesize

      100KB

      Download
    • memory/4088-137-0x0000000000400000-0x0000000000419000-memory.dmp
      Filesize

      100KB

      Download
    • memory/4616-138-0x0000000000000000-mapping.dmp
      Download
    • memory/4752-140-0x0000000000000000-mapping.dmp
      Download