Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    07/05/2024, 22:07

General

  • Target

    49b5a76f4bee18acfd6c2a8291943980_NEIKI.exe

  • Size

    96KB

  • MD5

    49b5a76f4bee18acfd6c2a8291943980

  • SHA1

    1765a1706bbd7c47c1483613c58e32f702895bcd

  • SHA256

    f8db7b63a01d8b70c677407a8a63718d5dcfd151c0de58c83340537c065ea909

  • SHA512

    e1f021c9ae65a4954b6b3139d2d76f130f126527a4664995c6102634a041ddf7faa5d57bf9fe823fde9c74b5e64aa3e0ae0c4d0410341854c1974fa439165caa

  • SSDEEP

    1536:Isz1++PJHJXFAIuZAIuekc9zBfA1OjBWgOI3uicwa+shcBEN2iqxtdSCow8hf3:hfAIuZAIuYSMjoqtMHfhf3

Score
9/10

Malware Config

Signatures

  • Renames multiple (3438) 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\49b5a76f4bee18acfd6c2a8291943980_NEIKI.exe
    "C:\Users\Admin\AppData\Local\Temp\49b5a76f4bee18acfd6c2a8291943980_NEIKI.exe"
    1⤵
    • Drops file in Program Files directory
    PID:2012

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\$Recycle.Bin\S-1-5-21-1298544033-3225604241-2703760938-1000\desktop.ini.tmp

    Filesize

    96KB

    MD5

    f70c4cd7fb00b560fdcaf2ddfb94d9f1

    SHA1

    a66cb3a785691176c447d96007c1139053447ec1

    SHA256

    627b53545c08c74f24b366734a65b2111880f51ab81b21961535c9a6b5e84eca

    SHA512

    825ed6b30e1ba7aab18d2e62f87dacf3e955c6eb455016c02b5646a574d5fa167d55aaabd5045c71f8a2ff21498379aad7e8530c2b704f5c98694a28594406d2

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

    Filesize

    105KB

    MD5

    431d182c55a0f850da6f7bc2bbfd7b22

    SHA1

    b5d6acefc353b6ad9f0aa65d6236b687beae49ae

    SHA256

    672835e2438aedb797a3acb3d21e77308222333fadc915ff08d1224f3baa57b0

    SHA512

    32ec7bf7926a562ba20ac11ed969a6d7a83ab47299e2b7fe35aabfb9f17820419c2fb24c1190bc215b49573589aa4a35395719eb4a54c7c9f997bf78968cc6ac

  • memory/2012-0-0x0000000000400000-0x000000000040A000-memory.dmp

    Filesize

    40KB

  • memory/2012-76-0x0000000000400000-0x000000000040A000-memory.dmp

    Filesize

    40KB