Overview

overview

10

Static

static

10

44f1def68a...in.exe

windows7_x64

10

44f1def68a...in.exe

windows10_x64

10

Analysis

  • max time kernel
    119s
  • max time network
    157s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    24-12-2021 11:15

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    44f1def68aef34687bfacf3668e56873f9d603fc6741d5da1209cc55bdc6f1f9.bin.exe

  • Size

    500KB

  • MD5

    6db85bacef3cac6deb69911af522e2b7

  • SHA1

    6aa7b2744a7e3975f0dff3672ec633b687ef5fbd

  • SHA256

    44f1def68aef34687bfacf3668e56873f9d603fc6741d5da1209cc55bdc6f1f9

  • SHA512

    7fbeb7cd7c09eb758e7dbbbe388e742a4d4a5e2933edcc3c0d57d4225918a5b9ac8259ebfcd71ae588e3b459aa5fa2ad8efad635ebc86f271cae7d272e1f8361

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 12 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\44f1def68aef34687bfacf3668e56873f9d603fc6741d5da1209cc55bdc6f1f9.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\44f1def68aef34687bfacf3668e56873f9d603fc6741d5da1209cc55bdc6f1f9.bin.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:3596
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\update.bat" "
      2⤵
        PID:2504

    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

      1c0051dedef4e7e9065aba98578dad71

      SHA1

      e6b5482d4e7fa428c62caa5b6b802472e9fa98fe

      SHA256

      5a0c57550848a5f46df98ce51939b753e849762070f186a9c25dc7a852045132

      SHA512

      d729b22a68ab1711fd807d735b5dc6fb848206c6f7882b86b6611f112d35fb283142b9168bde7bbc0ef7aad6cc150e47edef3974857d2e0a3e4155a469896b7c

      Download Submit
    • memory/2504-115-0x0000000000000000-mapping.dmp
      Download