Overview

overview

10

Static

static

10

e435a95489...in.exe

windows7_x64

10

e435a95489...in.exe

windows10_x64

10

Analysis

  • max time kernel
    46s
  • max time network
    47s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    12-05-2021 16:57

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General

  • Target

    e435a95489a4ebdfdc12031091f92a7f9c5e3f6cc9b55355ee4030d82553e9ac.bin.exe

  • Size

    46KB

  • MD5

    2f512bcf9d5fb1930365ecde38f683dc

  • SHA1

    9825ae4ae7c65a4fa622478b60659e1992e7f725

  • SHA256

    e435a95489a4ebdfdc12031091f92a7f9c5e3f6cc9b55355ee4030d82553e9ac

  • SHA512

    7819106e25732fe76858d1f4561e7851caee35bd9f10b5b392521fa0f596eb37c174ebbfd959cd5f675d09fa9d4c4325b0f09e9d7d36d8d140a9a0ee6f22beee

Score
10/10
mountlockerransomware

Malware Config

Signatures

  • MountLocker Ransomware

    Ransomware family first seen in late 2020, which threatens to leak files if ransom is not paid.

    ransomwaremountlocker
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 6 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Drops desktop.ini file(s) 27 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
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\e435a95489a4ebdfdc12031091f92a7f9c5e3f6cc9b55355ee4030d82553e9ac.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\e435a95489a4ebdfdc12031091f92a7f9c5e3f6cc9b55355ee4030d82553e9ac.bin.exe"
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4044
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -windowstyle hidden -c $mypid='4044';[System.IO.File]::ReadAllText('C:\Users\Admin\AppData\Local\Temp\~259266296.tmp')|iex
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1500
      • C:\Windows\system32\whoami.exe
        "C:\Windows\system32\whoami.exe" /groups /user
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3000
      • C:\Windows\system32\vssadmin.exe
        "C:\Windows\system32\vssadmin.exe" delete shadows /all /Quiet
        3⤵
        • Interacts with shadow copies
        PID:3088
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\\0F74A686.bat" "C:\Users\Admin\AppData\Local\Temp\e435a95489a4ebdfdc12031091f92a7f9c5e3f6cc9b55355ee4030d82553e9ac.bin.exe""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:208
      • C:\Windows\system32\attrib.exe
        attrib -s -r -h "C:\Users\Admin\AppData\Local\Temp\e435a95489a4ebdfdc12031091f92a7f9c5e3f6cc9b55355ee4030d82553e9ac.bin.exe"
        3⤵
        • Views/modifies file attributes
        PID:264
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2596

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\0F74A686.bat
    MD5

    348cae913e496198548854f5ff2f6d1e

    SHA1

    a07655b9020205bd47084afd62a8bb22b48c0cdc

    SHA256

    c80128f51871eec3ae2057989a025ce244277c1c180498a5aaef45d5214b8506

    SHA512

    799796736d41d3fcb5a7c859571bb025ca2d062c4b86e078302be68c1a932ed4f78e003640df5405274364b5a9a9c0ba5e37177997683ee7ab54e5267590b611

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\~259266296.tmp
    MD5

    b4f0414c0b3441ce0187ffb1d53b1721

    SHA1

    d7c4aaac0c8d13029aeae5561cf67a0c39c24bb1

    SHA256

    85d1f46682fedd1d8fb05564e885873c91879943e937cd292fe607ef6aa9db4f

    SHA512

    bfb6737ffe8361802719d92aa7c0d2274e88ea0ff45fa5307e964bd822bbfbf749ec9c622a47c68003453d8d8a7253d84d50460cc8b2eb6cacc513b82b27de96

    Download Submit

  • memory/208-141-0x0000000000000000-mapping.dmp

    Download

  • memory/264-143-0x0000000000000000-mapping.dmp

    Download

  • memory/1500-114-0x0000000000000000-mapping.dmp

    Download

  • memory/1500-120-0x000002C7EB200000-0x000002C7EB202000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1500-119-0x000002C7EB110000-0x000002C7EB111000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1500-121-0x000002C7EB203000-0x000002C7EB205000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1500-127-0x000002C7EB540000-0x000002C7EB541000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1500-140-0x000002C7EB206000-0x000002C7EB208000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3000-133-0x0000000000000000-mapping.dmp

    Download

  • memory/3088-134-0x0000000000000000-mapping.dmp

    Download