General

  • Target

    krampus downgrader v4.rar

  • Size

    8.9MB

  • MD5

    ca2ca9c371d1d0feaf69ff65570d8af4

  • SHA1

    165fd0ee7004ed2728d75b651d96da4b16b68d3e

  • SHA256

    59ed32617c30fdfbe800cdf73b4f504a7124ab2e5b201651c6a93be1c4ad1a97

  • SHA512

    b970ceb6ff08cd7dbbd3dec4982fe345830805e74a8123c4ee84fc4dbc87b71e57a25620972c865383623e0d266ad1acefaeb7cd3832b8e2341b4bc7e61c6ccb

  • SSDEEP

    196608:eqLvOT/WVeIzjbFKIoamK+HjRQF0SkvKdoAlZeH+qjCGEl+Hrf:rDOqzdKIoaG9NNvXWZejoWrf

Score
10/10

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

H72K8DS

C2

espiny-38468.portmap.host:38468

Mutex

bb9f7a2f-89e5-486f-8227-ba2ee26e4d41

Attributes
  • encryption_key

    C7EC88A5CCB59BD73EF3F7D4787818BE89C06664

  • install_name

    Win10.5.exe

  • log_directory

    Windows Logs

  • reconnect_delay

    3000

  • startup_key

    Windows 10.5 Boot

  • subdirectory

    Win10.5

Signatures

  • Quasar family
  • Quasar payload 1 IoCs
  • Unsigned PE 2 IoCs

    Checks for missing Authenticode signature.

Files

  • krampus downgrader v4.rar
    .rar
  • krampus downgrader v4/Byfron Cryptonite.exe
    .exe windows:4 windows x86 arch:x86

    f34d5f2d4577ed6d9ceec516c1f5a744


    Headers

    Imports

    Sections

  • krampus downgrader v4/ByfronDowngrade.lua
  • krampus downgrader v4/LIVE-WindowsPlayer-version-7d64f40489634ca5.dll
    .dll windows:4 windows x64 arch:x64

    9434905d51e7bf5f119cc9e5ee85d0da


    Headers

    Imports

    Exports

    Sections

  • krampus downgrader v4/WebView2Loader.dll
    .dll windows:10 windows x64 arch:x64


    Code Sign

    Headers

    Exports

    Sections

  • krampus downgrader v4/api-ms-win-crt-heap-l1-1-0.dll
    .dll windows:10 windows x64 arch:x64


    Code Sign

    Headers

    Exports

    Sections

  • krampus downgrader v4/api-ms-win-crt-locale-l1-1-0.dll
    .dll windows:10 windows x64 arch:x64


    Code Sign

    Headers

    Exports

    Sections

  • krampus downgrader v4/content.dll
    .dll windows:10 windows x64 arch:x64


    Code Sign

    Headers

    Exports

    Sections

  • krampus downgrader v4/shader.dll
    .dll windows:10 windows x64 arch:x64


    Code Sign

    Headers

    Exports

    Sections

  • krampus downgrader v4/texture.dll
    .dll windows:10 windows x64 arch:x64


    Code Sign

    Headers

    Exports

    Sections