Overview

overview

10

Static

static

e9662b4681...ad.exe

windows7_x64

10

e9662b4681...ad.exe

windows10_x64

7

Analysis

  • max time kernel
    153s
  • max time network
    157s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    31-08-2021 08:22

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    e9662b468135f758a9487a1be50159ef57f3050b753de2915763b4ed78839ead.exe

  • Size

    504KB

  • MD5

    e9454a2ff16897e177d8a11083850ec7

  • SHA1

    6b6855931e69d27f5f2e2d828fbeb4db91688996

  • SHA256

    e9662b468135f758a9487a1be50159ef57f3050b753de2915763b4ed78839ead

  • SHA512

    9bd01ed32887cecefe3987991f3ae3a0375c1cb1bff8b49f795b000076c26a1bb938476e4383b60a3f1ac5de79f7cd3cf2520ef695908815c0fee55a17dcb021

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 16 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\e9662b468135f758a9487a1be50159ef57f3050b753de2915763b4ed78839ead.exe
    "C:\Users\Admin\AppData\Local\Temp\e9662b468135f758a9487a1be50159ef57f3050b753de2915763b4ed78839ead.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:1924
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\update.bat" "
      2⤵
      • Deletes itself
      PID:360

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:\$Recycle.Bin\S-1-5-21-2455352368-1077083310-2879168483-1000\desktop.ini
    MD5

    a526b9e7c716b3489d8cc062fbce4005

    SHA1

    2df502a944ff721241be20a9e449d2acd07e0312

    SHA256

    e1b9ce9b57957b1a0607a72a057d6b7a9b34ea60f3f8aa8f38a3af979bd23066

    SHA512

    d83d4c656c96c3d1809ad06ce78fa09a77781461c99109e4b81d1a186fc533a7e72d65a4cb7edf689eeccda8f687a13d3276f1111a1e72f7c3cd92a49bce0f88

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

    75f3be83f10f4bfadc4d86f082600876

    SHA1

    1e50a9158f4009400c2afce8e7a5730d4357b97c

    SHA256

    70dc584c2d5f16aad21bd1cbeff5d3eab07b255c78ce121acced3c42b20e339c

    SHA512

    705613da9644e4d12a9443510bb5755444526a45a208a4c28273e5696bba44d18651a43f3b146ce24a08994dae6b502d004a68a1101f668447b061e8ad72b48a

    Download Submit
  • memory/360-62-0x0000000000000000-mapping.dmp
    Download
  • memory/1924-60-0x0000000076691000-0x0000000076693000-memory.dmp
    Filesize

    8KB

    Download