Overview

overview

10

Static

static

903bc7e411...1e.exe

windows7-x64

10

903bc7e411...1e.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    85s
  • max time network
    68s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    31-07-2022 07:11

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General

  • Target

    903bc7e41147dd62902f05aa2abbb2f63018832d37b45e8a194c534c8947271e.exe

  • Size

    270KB

  • MD5

    b0f8e32c7f511b967776b53d9bbc05b9

  • SHA1

    d31521a4c20233ccc35704e9c40a7ed368f31126

  • SHA256

    903bc7e41147dd62902f05aa2abbb2f63018832d37b45e8a194c534c8947271e

  • SHA512

    fb2e4c61069f7b5321cf8e872b2cce770faede7351af58d18c416db51dc5a3325dfd22737a3cd27ff54fd247118851c1f9bfcf554e96fce0606dd3781af4ffe2

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) 10 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 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\903bc7e41147dd62902f05aa2abbb2f63018832d37b45e8a194c534c8947271e.exe
    "C:\Users\Admin\AppData\Local\Temp\903bc7e41147dd62902f05aa2abbb2f63018832d37b45e8a194c534c8947271e.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:1804
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1332
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1820
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:548
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1880

    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/548-60-0x0000000000000000-mapping.dmp
      Download
    • memory/1332-56-0x0000000000000000-mapping.dmp
      Download
    • memory/1804-54-0x0000000003521000-0x0000000003535000-memory.dmp
      Filesize

      80KB

      Download
    • memory/1804-55-0x00000000749D1000-0x00000000749D3000-memory.dmp
      Filesize

      8KB

      Download
    • memory/1804-58-0x0000000003521000-0x0000000003535000-memory.dmp
      Filesize

      80KB

      Download
    • memory/1804-59-0x0000000000020000-0x0000000000039000-memory.dmp
      Filesize

      100KB

      Download
    • memory/1804-61-0x0000000000400000-0x000000000337B000-memory.dmp
      Filesize

      47.5MB

      Download
    • memory/1820-57-0x0000000000000000-mapping.dmp
      Download