Overview

overview

10

Static

static

e9662b4681...le.exe

windows7_x64

10

e9662b4681...le.exe

windows10_x64

10

Analysis

  • max time kernel
    121s
  • max time network
    163s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    26-07-2021 12:59

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    e9662b468135f758a9487a1be50159ef57f3050b753de2915763b4ed78839ead.sample.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 14 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.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\e9662b468135f758a9487a1be50159ef57f3050b753de2915763b4ed78839ead.sample.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:672
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\update.bat" "
      2⤵
      • Deletes itself
      PID:1840

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-1-5-21-2513283230-931923277-594887482-1000\desktop.ini
    MD5

    dd236bd80d7f20c67a3cb2879ce3dbd2

    SHA1

    2df394b221f955b31eb7e5469eda035b7982e6e1

    SHA256

    d03b77b87a43ff867f93a9f3c3bbbc2503cc6a67ad4aa971378ad8232a72ca6f

    SHA512

    4a0d5e03ab011da4edde8ce5652430ac47987796245e9eb0c2327a08003571feb5f80db3a28357563177073b5429989c585e9cd541c9f8159206338659775b81

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

    579e0b9242dae68126ea79bc491ef69d

    SHA1

    78aeeb528e7f1987a0b25670e7b117f8c83c1a2a

    SHA256

    300ee3dc1386f54cd6e80ebbaddd4439b445ad0dcd91871c6bedaab93c9f4d6d

    SHA512

    1fe8a6dc7c53a79bc9c8038532e75d6021e6d103fab8c247d8cab3a9bb8d28676c1d86bbc3fb07ced6f228e4a445a676b11fa89ebd0af6b73053d710e92b53a4

    Download Submit
  • memory/672-59-0x0000000075551000-0x0000000075553000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1840-61-0x0000000000000000-mapping.dmp
    Download