Overview

overview

10

Static

static

049263e712...6c.exe

windows7_x64

10

049263e712...6c.exe

windows10_x64

10

2a2eb971b8...d0.exe

windows7_x64

10

2a2eb971b8...d0.exe

windows10_x64

10

32d6be4f86...f3.exe

windows7_x64

10

32d6be4f86...f3.exe

windows10_x64

10

39ef1d9afd...d8.exe

windows7_x64

10

39ef1d9afd...d8.exe

windows10_x64

10

3a83805e3a...7e.exe

windows7_x64

10

3a83805e3a...7e.exe

windows10_x64

10

d1b6ee9b71...2b.exe

windows7_x64

10

d1b6ee9b71...2b.exe

windows10_x64

10

Analysis

  • max time kernel
    68s
  • max time network
    121s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    16-06-2021 05:59

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Report Analysis Logs

General

  • Target

    049263e712631a447fd13c8255ed456bcac8b4227502841acd8f229d89dc066c.exe

  • Size

    532KB

  • MD5

    abdc29577ef646613ecc089bf0a0bf6a

  • SHA1

    97760dfeefa72766ec28973c331faad441bfc5f8

  • SHA256

    049263e712631a447fd13c8255ed456bcac8b4227502841acd8f229d89dc066c

  • SHA512

    bfb85082f95182027bb9aa81f1c350784543bef227757b79046c73447fa10a669f4f9d7f5542b60d32bd213663900b4e8651e5fcf356915650d0b058f59bd614

Score
10/10
mespinozaransomwarespywarestealer

Malware Config

Signatures

  • Mespinoza Ransomware 2 TTPs

    Also known as Pysa. Ransomware-as-a-servoce which first appeared in 2020.

    ransomwaremespinoza
  • Modifies extensions of user files 20 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\049263e712631a447fd13c8255ed456bcac8b4227502841acd8f229d89dc066c.exe
    "C:\Users\Admin\AppData\Local\Temp\049263e712631a447fd13c8255ed456bcac8b4227502841acd8f229d89dc066c.exe"
    1⤵
    • Modifies extensions of user files
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:808
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\update.bat" "
      2⤵
        PID:2100

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Data from Local System

    1
    T1005

    Exfiltration

    Command and Control

    Impact

    Data Encrypted for Impact

    1
    T1486

    Replay Monitor

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    Downloads

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

      39299bc70e8b1c222f864b09625040eb

      SHA1

      93bc84350a684fe13509648d8eda61d504bc7162

      SHA256

      682132b77f2cdef4ff6567865fbe78d76a4b0f1c55229cb57760e6f72f580464

      SHA512

      177719bfe38dce08ce746a1eb998e54aa51ff53613dc58e834cd0681f2107a1328a3a76b006a8e7aa5d532ee67201153e21559c784fefd7a132f67922a91eca1

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    • memory/2100-114-0x0000000000000000-mapping.dmp
      Download