Overview

overview

10

Static

static

10

f602319a51...in.exe

windows7_x64

10

f602319a51...in.exe

windows10_x64

10

Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    24-12-2021 11:14

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General

  • Target

    f602319a51dfad374687a6d18f87c9f8e7b9cab956a4993c2ed83e7adad6e2db.bin.exe

  • Size

    628KB

  • MD5

    68d717aaa4ca93f1799f5e602553b7e9

  • SHA1

    3ce06540d62a722513145bbd346cdb223ddb17c7

  • SHA256

    f602319a51dfad374687a6d18f87c9f8e7b9cab956a4993c2ed83e7adad6e2db

  • SHA512

    e37f2dd5f8110ce6928be726016427216e978fbc2beebdbae2c6f1d1e4454901e260cac4e335358d6c1d44a7abf42bf2f6edaf87264665fed778f03a515a9f26

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 22 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\f602319a51dfad374687a6d18f87c9f8e7b9cab956a4993c2ed83e7adad6e2db.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\f602319a51dfad374687a6d18f87c9f8e7b9cab956a4993c2ed83e7adad6e2db.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:1732
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\update.bat" "
      2⤵
      • Deletes itself
      PID:1520

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

    f19f9658fbc34f071a180ef52de04616

    SHA1

    f56685f57c769728569a05f22f4cb1b128ae5361

    SHA256

    59672947f1a3523599211114bcf1f1e5fe786817ded7b87e7c8409e6aa075192

    SHA512

    c7a913b3f2672c53bd14bcb6b71a1a87de4e737b12835b4065147ef773459a3a9c529021c614d3bb71dac7817bfccfbca7c61a5f36897cd630512d63425ed090

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  • memory/1520-56-0x0000000000000000-mapping.dmp
    Download
  • memory/1732-55-0x0000000074F11000-0x0000000074F13000-memory.dmp
    Filesize

    8KB

    Download