Overview

overview

10

Static

static

10

npx.exe

windows7-x64

10

npx.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    npx.exe
  • Size 3.1MB
  • Sample240218-y2vx3aeb7y
  • SHA256 05beec4f23efa88995a5a91ff292bc824714ad940c785cdf7d4d5686a0ed3692
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
office04quasar

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • panpoppo-35085.portmap.io:35085

Mutex

  • 4c66ad2a-cec5-494c-85df-288c69f5c3e9

Attributes
  • encryption_key

    D0E82A17B54C1504BBAFF49C5F025FB5AA2144B6

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar family
    quasar
  • Quasar payload 1 IoCs
  • Unsigned PE 1 IoCs

    Checks for missing Authenticode signature.

File Explorer

  • npx.exe
    .exe 3.1MB

npx.exe

  • IMPHASH f34d5f2d4577ed6d9ceec516c1f5a744
  • SHA256 05beec4f23efa88995a5a91ff292bc824714ad940c785cdf7d4d5686a0ed3692
  • MD5 SHA1 SHA512 SSDEEP
windows:4windowsx86arch:x86

  • Quasar payload

  • Unsigned PE

    Checks for missing Authenticode signature.

Minor OS version
0
Major OS version
4
Entry point
3269630
Magic Number
267
Subsystem
IMAGE_SUBSYSTEM_WINDOWS_GUI
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_NO_SEH IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_32BIT_MACHINE
PDB paths