Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2024 06:39

General

  • Target

    800d79251654c3fbc4042814d105cdba410a18452f02713bc774c554064b4dd8N.exe

  • Size

    440KB

  • MD5

    619e7fc7f8381a60127676cb910facd0

  • SHA1

    04907c43daa51ac52fc18670b39694aa6d322a02

  • SHA256

    800d79251654c3fbc4042814d105cdba410a18452f02713bc774c554064b4dd8

  • SHA512

    19c9d81d89c184fc4f0632d677b9c4ef38a054fc686225fdc5310574eee74f3534db3f32f78be164784e1238186bdfb2af08ce0616069b5f467b0c8356de9b99

  • SSDEEP

    6144:m9h6WKG57fs/EGA6rpYgZRg7FVEOprcltFtxQ2d0khBYNZ+:xWKGxf437rpYgZRwyCkhWH+

Malware Config

Signatures

  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Detected Nirsoft tools 12 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 13 IoCs

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

  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\800d79251654c3fbc4042814d105cdba410a18452f02713bc774c554064b4dd8N.exe
    "C:\Users\Admin\AppData\Local\Temp\800d79251654c3fbc4042814d105cdba410a18452f02713bc774c554064b4dd8N.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2424
    • C:\Users\Admin\AppData\Local\Temp\3582-490\800d79251654c3fbc4042814d105cdba410a18452f02713bc774c554064b4dd8N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\800d79251654c3fbc4042814d105cdba410a18452f02713bc774c554064b4dd8N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      PID:2156

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

    Filesize

    547KB

    MD5

    d30b36247185a670852f45098eb9a8e6

    SHA1

    f37447d3b870174444e0834bd13629fc9804e6f2

    SHA256

    e57de7cf83c9f5dc4810d748b3907f65f2909eb6391c140ed0b049c452f7d270

    SHA512

    d1100b0403e95b035e66841db8a64a710a5f7f1b984f51089259468a21ef7696d65e7a3e84b2f774b000c8016eead784810b336455fc9cd7b6663ebf9abb433b

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\800d79251654c3fbc4042814d105cdba410a18452f02713bc774c554064b4dd8N.exe

    Filesize

    399KB

    MD5

    81aa3ca82dfffdd252606b0ae7f7494d

    SHA1

    9e5ff8afbb5516a60ae3f754f977e955c854e0ca

    SHA256

    dd108e4644a2a55260c6f5a0e4ee3cbf79eb269dc1cb1e8e1eca650046df3f9f

    SHA512

    1abc136153035356ddc654f24f0dabb9e02e81c9aee383d600abcf7aaf3291f19f677fead038605e168aee952bf979f27e9ad953e43b8fab551ffbec3e96914d

  • memory/2156-93-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2156-96-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2156-14-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2156-105-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2156-104-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2156-92-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2156-103-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2156-101-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2156-100-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2156-99-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2156-97-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2156-98-0x0000000000400000-0x000000000051E000-memory.dmp

    Filesize

    1.1MB

  • memory/2424-7-0x0000000002500000-0x000000000261E000-memory.dmp

    Filesize

    1.1MB

  • memory/2424-95-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2424-8-0x0000000002500000-0x000000000261E000-memory.dmp

    Filesize

    1.1MB

  • memory/2424-91-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/2424-90-0x0000000002500000-0x000000000261E000-memory.dmp

    Filesize

    1.1MB

  • memory/2424-89-0x0000000002500000-0x000000000261E000-memory.dmp

    Filesize

    1.1MB