Malicious PDF — malware analysis report

Static analysis result for SHA-256 55f1c4cceb8280e0…

MALICIOUS

PDF

135.2 KB Created: 2022-07-08 00:10:54 +00:00 Authoring application: kiahels (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: f2954b80d30f5d2504229e2e9f528b80 SHA-1: 9f728e54cb3bd01a6b5bb1477d17d0835b2b5753 SHA-256: 55f1c4cceb8280e0bf24228e009986e053de1e6591dfd024b253965b76ddfa2e
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, many of which point to sites offering cracked software. This indicates a link farm designed to attract users seeking pirated software, likely as a lure for malicious downloads or further compromise. No scripts were extracted, but the presence of numerous external URLs suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0086

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • PDF link farm advertises cracked/pirated software medium PDF_CRACKED_SOFTWARE_LURE
    PDF contains many clickable links whose targets use cracked-software, keygen, serial-key, or warez vocabulary. These are SEO-spam lure documents that rank for software-piracy searches and route users to fake 'crack' download pages distributing potentially-unwanted programs, adware, or droppers. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://widesearchengine.com/ZG93bmxvYWR8aUo5T1RkaU0zeDhNVFkxTnpFNE5qazFOWHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA/deprivations.ferrous/dWxlYWQgcGhvdG9pbXBhY3QgeDMgY3JhY2sgdG9ycmVudAdWx/groundsheets/underachievers.proposals.tibidabo PDF link annotation
    • https://www.dejavekita.com/upload/files/2022/07/PeinpDQJOcSsanHgRuwr_08_c09e54cae8a0a8fec251728294a66b8a_file.pdfIn PDF document text
    • https://world-online.co.za/advert/dead-island-game-x86-rwdidll/In PDF document text
    • https://best-housing.nl/wp-content/uploads/2022/07/FSX_P3D_Alabeo__Cessna_C441_V13_Money_Hack.pdfIn PDF document text
    • https://voiccing.com/upload/files/2022/07/sdDcpd6PzlvEupZHMpLU_08_c09e54cae8a0a8fec251728294a66b8a_file.pdfIn PDF document text
    • https://www.asyamedika.com.ph/sites/default/files/webform/Itactil-lider-9-1-crack.pdfIn PDF document text
    • https://kaushalmati.com/rocky-handsome-movie-free-hot-download-in-hindi-720p-download/In PDF document text
    • https://endlessflyt.com/zerene-stacker-serial-keygen-torrent-new/In PDF document text
    • https://www.thepostermafia.com/2022/07/08/vegasaur-2-3-keygen-__exclusive__-11/In PDF document text
    • http://www.360sport.it/advert/accu-chek-smart-pix-software-version-v-1-2-repack-download/In PDF document text
    • https://www.sdssocial.world/upload/files/2022/07/6BsHZzD1h2q8di1gKEpg_08_c09e54cae8a0a8fec251728294a66b8a_file.pdfIn PDF document text
    • https://officinabio.it/3d-loli-collections-art-by-waldo-better/In PDF document text
    • https://livefitstore.in/advert/dead-rising-3-apocalypse-edition-update-5-pc-game-top/In PDF document text
    • http://montehogar.com/?p=32231In PDF document text
    • https://sissycrush.com/upload/files/2022/07/nchbfjFKQgPJ1MasXMfX_08_c09e54cae8a0a8fec251728294a66b8a_file.pdfIn PDF document text
    • https://cecj.be/extra-quality-download-night-at-the-museum-2-in-dual-audio/In PDF document text
    • http://itkursove.bg/wp-content/uploads/2022/07/eleehand.pdfIn PDF document text
    • https://www.essexma.org/sites/g/files/vyhlif4406/f/uploads/050222_atm_warrant.pdfIn PDF document text
    • https://cannabisdispensaryhouse.com/mobile-suit-gundam-char-counterattack-movie-link-download/In PDF document text
    • https://aposhop-online.de/2022/07/08/removeit-pro-v7-65-enterprise-editi-hot-release-rar/In PDF document text
    • https://www.dejavekita.com/upload/files/2022/07/PeinpDQJOcSsanHgRuwr_08_c09e54cae8a0a8fec25In PDF document text
    • https://best-housing.nl/wp-In PDF document text
    • https://voiccing.com/upload/files/2022/07/sdDcpd6PzlvEupZHMpLU_08_c09e54cae8a0a8fec2517282In PDF document text
    • https://www.sdssocial.world/upload/files/2022/07/6BsHZzD1h2q8di1gKEpg_08_c09e54cae8a0a8fec2In PDF document text
    • https://sissycrush.com/upload/files/2022/07/nchbfjFKQgPJ1MasXMfX_08_c09e54cae8a0a8fec2517282In PDF document text
    • https://www.edfenergy.com/system/files/webform/8091/vectric-vcarve-pro-cracked-xjzoi.pdfIn PDF document text
    • http://www.tcpdf.orgIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text
🗂 Part of campaign: secureserver.net 1471 samples

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_010_off0001a669.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1A669 119072 bytes
SHA-256: df221e87b81d1531cafdadb6c09a602e9f604d1baf0a17bbd350cbb83baa06f7