Overview

overview

10

Static

static

10

20684d3edd...15.exe

windows7_x64

10

20684d3edd...15.exe

windows10_x64

9

Analysis

  • max time kernel
    164s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    24-01-2022 02:25

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General

  • Target

    20684d3edd9d61bbe0a84559c8e197a02a123e697bc8d05bd9305cf1d3984c15.exe

  • Size

    179KB

  • MD5

    c81b771a8e8762a89b54f69a0d7755af

  • SHA1

    e884e59df82d2a796c2de1e1c6cbd1e491e16e30

  • SHA256

    20684d3edd9d61bbe0a84559c8e197a02a123e697bc8d05bd9305cf1d3984c15

  • SHA512

    f2975e6f20bda5c054ea7d4bd385bf9fd52306407a6ae0d01730a340b7bc53582a98e4af4871b01eb5a94c6edfc611014fa17b7e01d7e9150351b5827c99cf2d

Score
9/10
ransomware

Malware Config

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\20684d3edd9d61bbe0a84559c8e197a02a123e697bc8d05bd9305cf1d3984c15.exe
    "C:\Users\Admin\AppData\Local\Temp\20684d3edd9d61bbe0a84559c8e197a02a123e697bc8d05bd9305cf1d3984c15.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2476
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe Delete Shadows /All /Quiet & bcdedit /set {default} recoveryenabled No & bcdedit /set {default} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:836
      • C:\Windows\SysWOW64\vssadmin.exe
        vssadmin.exe Delete Shadows /All /Quiet
        3⤵
        • Interacts with shadow copies
        PID:2840
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:1480
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2800

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    File Deletion

    2
    T1107

    Credential Access

    Discovery

    Query Registry

    1
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    2
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Inhibit System Recovery

    2
    T1490

    Replay Monitor

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    Downloads

    • memory/2476-118-0x0000000000F20000-0x0000000000F43000-memory.dmp
      Filesize

      140KB

      Download
    • memory/2476-119-0x0000000002C20000-0x0000000002C26000-memory.dmp
      Filesize

      24KB

      Download
    • memory/2476-120-0x0000000000F20000-0x0000000000F43000-memory.dmp
      Filesize

      140KB

      Download
    • memory/2476-121-0x0000000001380000-0x0000000001381000-memory.dmp
      Filesize

      4KB

      Download