Analysis

  • max time kernel
    51s
  • max time network
    51s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-06-2024 21:45

General

  • Target

    54f1dc328c6c2ff9a3da93724a36485e7fc549e7a0f304b1f8f21cfb93329f8c.exe

  • Size

    728KB

  • MD5

    6721e99a7c6a2e5dc71e598a17edd3bf

  • SHA1

    6cee995894b4bd6c1afa6d4a1615b34d7537af63

  • SHA256

    54f1dc328c6c2ff9a3da93724a36485e7fc549e7a0f304b1f8f21cfb93329f8c

  • SHA512

    a4ae7a4df40ae350389cea6731d670c23cceeab71273a47196f2d46a8278825b138f842a7767317ecb5af897842f632f59a7f3a9105638b45a33c8d0298f3006

  • SSDEEP

    12288:19wj+uHO76bdJbOomEdbJjcV5Rhz2fc5d10da8N:1IO7qOMbpcTRhq6d10da8N

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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\54f1dc328c6c2ff9a3da93724a36485e7fc549e7a0f304b1f8f21cfb93329f8c.exe
    "C:\Users\Admin\AppData\Local\Temp\54f1dc328c6c2ff9a3da93724a36485e7fc549e7a0f304b1f8f21cfb93329f8c.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:4752
    • C:\Users\Admin\AppData\Local\Temp\3582-490\54f1dc328c6c2ff9a3da93724a36485e7fc549e7a0f304b1f8f21cfb93329f8c.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\54f1dc328c6c2ff9a3da93724a36485e7fc549e7a0f304b1f8f21cfb93329f8c.exe"
      2⤵
      • Executes dropped EXE
      PID:3772

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\54f1dc328c6c2ff9a3da93724a36485e7fc549e7a0f304b1f8f21cfb93329f8c.exe
    Filesize

    688KB

    MD5

    6bd8690d92241989f939b86e184ac728

    SHA1

    33f758adb2899f7efb72328cb81e616fcb040ed8

    SHA256

    411e7cfa8302d2c9fdc06b862236fad2970d136f792682948e61d9220e9394ef

    SHA512

    2794f068e084353a5c72728922585794bafab19e00187498ba5cec666201f5a5329ab9a10ca21e464e74c66df668c1d7a8f30b984393245ee1d8e6cdf55ec3ec

  • memory/4752-98-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/4752-99-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/4752-101-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB