Analysis

  • max time kernel
    140s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-06-2024 04:53

General

  • Target

    ef7d2b739744330fcc4e0a3bee30c165f0267d40acf9fd0164e3297178251f86.exe

  • Size

    560KB

  • MD5

    32a8d072478cf9a537cc0219026ae77d

  • SHA1

    a1aa85d7b9b64adf4bed4b589cacfa3ecc4aefc1

  • SHA256

    ef7d2b739744330fcc4e0a3bee30c165f0267d40acf9fd0164e3297178251f86

  • SHA512

    be018f4a8d95dfb2dfac8d8254707401f8bf38fcd3c307851e8e933833eca1a5e3520fd6d3b13decaae40356b4f43d4d7cd2a130135c6a662a81debd8c6d4be4

  • SSDEEP

    6144:k9ZvQk+MteIX1yeKSAnkROZsipaFW10al1ziOgtwMYY8YuOZx62dUFAdcNYK:cQk+MTlvXAnOiOWKal1ziztX8/2dX0

Malware Config

Signatures

  • Detect Neshta payload 4 IoCs
  • Neshta

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

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

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

  • 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).

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ef7d2b739744330fcc4e0a3bee30c165f0267d40acf9fd0164e3297178251f86.exe
    "C:\Users\Admin\AppData\Local\Temp\ef7d2b739744330fcc4e0a3bee30c165f0267d40acf9fd0164e3297178251f86.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2268
    • C:\Users\Admin\AppData\Local\Temp\3582-490\ef7d2b739744330fcc4e0a3bee30c165f0267d40acf9fd0164e3297178251f86.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\ef7d2b739744330fcc4e0a3bee30c165f0267d40acf9fd0164e3297178251f86.exe"
      2⤵
      • Executes dropped EXE
      PID:2468

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Privilege Escalation

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE
    Filesize

    86KB

    MD5

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

  • C:\Users\Admin\AppData\Local\Temp\3582-490\ef7d2b739744330fcc4e0a3bee30c165f0267d40acf9fd0164e3297178251f86.exe
    Filesize

    519KB

    MD5

    c13b28f2be8136780d285b5d4b20c7f5

    SHA1

    4acbc088ba27819f6dfc717ce5ac642643a948af

    SHA256

    2a80b044594b10ecbc02db0de414cd29940d51a03ccdced4de97a50a3769e50c

    SHA512

    e5bbd2bb926fa4d3882062f8a769821fc2b2e06c80a3e1e638684f2ac4d719d38ef23fdb08897773f18f2b3b99b8746b54b3a022a980031b9163bca1f261d215

  • memory/2268-96-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/2268-97-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/2268-99-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB