Overview

overview

10

Static

static

10

1b05c4d74e...66.exe

windows7-x64

10

1b05c4d74e...66.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    1b05c4d74e0d17a983f9b91aa706a7a60f37ec270b7e2433d6798afa1c7be766.exe
  • Size 502KB
  • Sample241217-csf7naykhj
  • SHA256 1b05c4d74e0d17a983f9b91aa706a7a60f37ec270b7e2433d6798afa1c7be766
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
office04quasar

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.0

Botnet

  • Office04

C2

  • 192.168.31.99:4782

  • 2001:4bc9:1f98:a4e::676:4782

  • 255.255.255.0:4782

  • fe80::cabf:4cff:fe84:9572%17:4782

Mutex

  • 1f65a787-81b8-4955-95e4-b7751e10cd50

Attributes
  • encryption_key

    A0B82A50BBC49EC084E3E53A9E34DF58BD7050B9

  • install_name

    Java Updater.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Java Updater

  • subdirectory

    SubDir

Signatures

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

    Checks for missing Authenticode signature.

File Explorer

  • 1b05c4d74e0d17a983f9b91aa706a7a60f37ec270b7e2433d6798afa1c7be766.exe
    .exe 502KB

1b05c4d74e0d17a983f9b91aa706a7a60f37ec270b7e2433d6798afa1c7be766.exe

  • IMPHASH f34d5f2d4577ed6d9ceec516c1f5a744
  • SHA256 1b05c4d74e0d17a983f9b91aa706a7a60f37ec270b7e2433d6798afa1c7be766
  • 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
518270
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