Analysis

  • max time kernel
    150s
  • max time network
    150s
  • 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 18:17

General

  • Target

    046741a3f7e5ad9ddbf249cd2b232c0e2a5153b4e5bcee8d552c2841b0062bfa.exe

  • Size

    113KB

  • MD5

    0638fca6fa362157af91603045a88430

  • SHA1

    5d8c839240c7f487bfcdf20d8a894f7cba263fc1

  • SHA256

    046741a3f7e5ad9ddbf249cd2b232c0e2a5153b4e5bcee8d552c2841b0062bfa

  • SHA512

    491b99fa307fbeb9c99f15680578b1fdd5317c2f24673a4a419980350df8521a7a80a41759dffb76dc733a9c48ac9d5070cbf104d8d3321c0d77971a6dd5512e

  • SSDEEP

    1536:JxqjQ+P04wsmJCInEIneW6Fmig7XPxEiTul1U3peh8DGYs1dAqn60k:sr85CInEk6FmigjxSsYhSs16qnbk

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\046741a3f7e5ad9ddbf249cd2b232c0e2a5153b4e5bcee8d552c2841b0062bfa.exe
    "C:\Users\Admin\AppData\Local\Temp\046741a3f7e5ad9ddbf249cd2b232c0e2a5153b4e5bcee8d552c2841b0062bfa.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:2916
    • C:\Users\Admin\AppData\Local\Temp\3582-490\046741a3f7e5ad9ddbf249cd2b232c0e2a5153b4e5bcee8d552c2841b0062bfa.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\046741a3f7e5ad9ddbf249cd2b232c0e2a5153b4e5bcee8d552c2841b0062bfa.exe"
      2⤵
      • Executes dropped EXE
      PID:2092

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\046741a3f7e5ad9ddbf249cd2b232c0e2a5153b4e5bcee8d552c2841b0062bfa.exe
    Filesize

    72KB

    MD5

    5f9fd258fe403cc0b0691967eee89985

    SHA1

    b736ac24ec76f0ea128f2bd1f9dacf7be3d76f5d

    SHA256

    8239cb3271398f50665765909b6144cd383193bbe4a13f84d1efa9a7d58797f6

    SHA512

    f825f6e1b7b88269d2e97591c6608ee7d438b5284787e3159e6a57e93c99816d573db88859b3e909bba2b8ec05065b714d3eca9882f40b91e0f2831407c7f057

  • memory/2916-93-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/2916-94-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/2916-96-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB