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Analysis

  • max time kernel
    120s
  • max time network
    91s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2024, 05:46

General

  • Target

    a77f2948ff4f8da394a849cc93609bbb954ab42294b2c5612ec66ae512136d0cN.exe

  • Size

    60KB

  • MD5

    305a3a3058eb3197bbf82a64b8431ae0

  • SHA1

    2b1bc4b2911ee92ff6eb73a684d1bfcf157edef7

  • SHA256

    a77f2948ff4f8da394a849cc93609bbb954ab42294b2c5612ec66ae512136d0c

  • SHA512

    3917240645a2acd7ef93f63c40cc0cf14a106092d2953278a3c758474c362da4eb071a6161f0d5587c5253a798b37145a6bd49d9877c0eaa8d494e25bc8f8a4e

  • SSDEEP

    768:kBT37CPKKIm0CAbLg++PJHJzIWD+dVdCYgck5sIZFlzc3/Sg2aDM9uA9DM9uAFIR:CTWn1++PJHJXA/OsIZfzc3/Q8IZaif

Malware Config

Signatures

  • Renames multiple (4647) files with added filename extension

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

  • UPX packed file 4 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

Processes

  • C:\Users\Admin\AppData\Local\Temp\a77f2948ff4f8da394a849cc93609bbb954ab42294b2c5612ec66ae512136d0cN.exe
    "C:\Users\Admin\AppData\Local\Temp\a77f2948ff4f8da394a849cc93609bbb954ab42294b2c5612ec66ae512136d0cN.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:2896

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\$Recycle.Bin\S-1-5-21-656926755-4116854191-210765258-1000\desktop.ini.tmp

    Filesize

    60KB

    MD5

    a34a0c4613baa4350ccb18a0ea0998c4

    SHA1

    f81addc11580c0242454f4f59222426e5c43a81a

    SHA256

    4de2451a6c544a8300011ea41f1c1de27dd917ce50d358abc0b60ac1172cae83

    SHA512

    b05553f2ad7a466e5dbe85cce6da563d35125671cce65cc774a7de91aa704e40e198aea5b3129d3429f08c1b66a85bd3ecbaa97050b1db81599e294e80fd1f31

  • C:\Program Files\7-Zip\7-zip.dll.tmp

    Filesize

    159KB

    MD5

    e1a15f11ce83fe8e74c24d0f97d35c81

    SHA1

    f72172ac727a7acc980d8a378ab9e13f4423fb1b

    SHA256

    9dcb76aaba33d0fe0956c70b6dbff68e4dd0ab7752c584b75ffb905769a2f095

    SHA512

    7d6c0fb3b6cf79d47c2fd529870f910d308714620f5ac501c7df02571647e0e7ab5e2ffb1c05437a73a5466c3c068edc34affc1e4d079ed0b30df61f67296b9e

  • memory/2896-0-0x0000000000400000-0x000000000040A000-memory.dmp

    Filesize

    40KB

  • memory/2896-888-0x0000000000400000-0x000000000040A000-memory.dmp

    Filesize

    40KB