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
    75s
  • max time network
    40s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    16-06-2021 05:59

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    d1b6ee9b716fe48e51ac4e6bec691366bb08d507773d61a5d14fb15ec5e25e2b.exe

  • Size

    500KB

  • MD5

    4b1111e3ff64fa9836047ed70f0e93b2

  • SHA1

    44013f5f6f5c88482441f1fa673e1ada7d6e845f

  • SHA256

    d1b6ee9b716fe48e51ac4e6bec691366bb08d507773d61a5d14fb15ec5e25e2b

  • SHA512

    166e785132a0474149196cbd77f0b4644a3676dc8f4b7e55ece6e92275e1caffd30db2a82a0b3f3dd1ba52dd2683dfc74dfc5f669990d4157a9af17b6c0c793a

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 8 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Deletes itself 1 IoCs
  • 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 7 IoCs
  • System policy modification 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\d1b6ee9b716fe48e51ac4e6bec691366bb08d507773d61a5d14fb15ec5e25e2b.exe
    "C:\Users\Admin\AppData\Local\Temp\d1b6ee9b716fe48e51ac4e6bec691366bb08d507773d61a5d14fb15ec5e25e2b.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:1632
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\update.bat" "
      2⤵
      • Deletes itself
      PID:1512

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

Loading Replay Monitor...

Downloads

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

    dab70e038164bf277f4de3c7f371c6c8

    SHA1

    4e8d0d693aeb2e277189931e124228ec79347796

    SHA256

    1ab854d5aff437e6dd72a814080293ac8e9c651bb2f7220acdb1cf848f3a8769

    SHA512

    b19a35e1b4df889dc009034374365b1c09e774375166bd5897ca96588bbf69a9d0a5814b477d6ceedd77199ac1aed4200e670f8721c6e6a74b39a5d9740ffb27

    Download Submit
  • memory/1512-61-0x0000000000000000-mapping.dmp
    Download
  • memory/1632-60-0x0000000075551000-0x0000000075553000-memory.dmp
    Filesize

    8KB

    Download