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Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05/05/2024, 01:50

General

  • Target

    8e4f94f87946f63851273d193f52cf887689ea49d9300e0f76567204bfd81146.exe

  • Size

    121KB

  • MD5

    08526595716d52bf9f6ef50fca514fa1

  • SHA1

    1cc99a9a07d1e785d08bfb81d84e1ae7827063ba

  • SHA256

    8e4f94f87946f63851273d193f52cf887689ea49d9300e0f76567204bfd81146

  • SHA512

    208889936298d0cb5bfa94f3f27dea0e1b1f0644c90b3d625cff6ecf73a75163acd019443705db731054c6726ab02297cdebfe599e47145812689e74a165d332

  • SSDEEP

    1536:67Zf/FAlsM1++PJHJXFAIuZAIuekc9zBfA1OjBWgOI3uicwa+shcBEN2iqxtdSCp:+nymCAIuZAIuYSMjoqtMHfhfI

Score
9/10

Malware Config

Signatures

  • Renames multiple (3432) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • UPX dump on OEP (original entry point) 4 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8e4f94f87946f63851273d193f52cf887689ea49d9300e0f76567204bfd81146.exe
    "C:\Users\Admin\AppData\Local\Temp\8e4f94f87946f63851273d193f52cf887689ea49d9300e0f76567204bfd81146.exe"
    1⤵
    • Drops file in Program Files directory
    PID:2220

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\$Recycle.Bin\S-1-5-21-3452737119-3959686427-228443150-1000\desktop.ini.tmp

    Filesize

    121KB

    MD5

    2d5bf5cd0355012a146389f69d0c7423

    SHA1

    38191e6aa29981080fe6840efaadbcb015786e54

    SHA256

    e8ec913d97dc47ca045b8cf63063d6c8253fba860069a18e507ca2d0b0321b03

    SHA512

    a1342497be81a2edc9f3cea7b9160296f02a80902013572f7cc118925c80becf0048e654307c6986350bad612fe536b63717f56b3c3cd1e212ea932cfa477661

  • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Office64WW.xml.tmp

    Filesize

    130KB

    MD5

    6fd14bec012aa83ca0d8d04efc67844d

    SHA1

    407a74babc085942e7c0a633f2d76e8289ab0cf9

    SHA256

    d6cef434bc564e098a023f192e348955cf7f622eb8298e700e74386d8da11c9e

    SHA512

    0952af08c471d4e6edc6fa22939108fc30ca47d76f5b980f4778a81fee18e04fa88dd4138e7d86c3f879ef86bede2f0640497a24c14cd60b12607d4296f55be0

  • memory/2220-0-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2220-644-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB