Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcd04270c495b83d…

MALICIOUS

PDF

46.0 KB Created: 2020-11-08 07:54:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 3a722d91bebe3502cbd7ecf28d035f6c SHA-1: d2eb8628f89635f96ab75fefa0c0e074ceae0e20 SHA-256: bcd04270c495b83d34c3a67b3e8dd6e85834ed0e49700a44089aacfd6072a24d
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://traffking.ru/123?keyword=empire+rome+rising+for+pc In PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/32e063a95e.pdfIn PDF document text
    • https://pisanofinupu.weebly.com/uploads/1/3/1/4/131437881/bixememofoju.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/3936ca.pdfIn PDF document text
    • https://xavixikani.weebly.com/uploads/1/3/4/5/134502132/c84b21b96ceb38.pdfIn PDF document text
    • https://xapotaligefako.weebly.com/uploads/1/3/4/6/134612972/tujeka_nejaxigit_motekexofaz.pdfIn PDF document text
    • https://joxunirefebemi.weebly.com/uploads/1/3/4/3/134319414/7649188.pdfIn PDF document text
    • https://titobuvidotid.weebly.com/uploads/1/3/4/5/134598786/bukuzekonotoviv-lepemuz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d55a0be-0915-471f-91dc-cec75c498fec/sweet_sinner_torrent.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c26781e4-ea3f-4e43-8453-da2a2ded73c7/duke_nukem_forever_graphics_mods.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fce6310a-e4b9-45b7-aeb6-fc9cbe393138/lunujevimaliwuvirukaru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7eb0e11b-5896-47d7-aa11-f0f09a27fbe5/zilaguxovuxejixisekiref.pdfIn PDF document text
    • https://jixiluzab.files.wordpress.com/2020/11/25774218465.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d80fef98-e8e2-4a81-a2b7-9640c60eb546/bakudezojomuvovina.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c9c3a62-9748-4f53-81d2-61569a378872/wedding_dress_with_pockets_bbc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21cce063-6e74-4987-abcd-131cf42ddcac/68423452176.pdfIn 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/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000736b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x736B 5048 bytes
SHA-256: 801156196e0f48b1a4bd46a16e72bf398aae960088465201afb68909cf9d350a
font_01_sfnt_off00008493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8493 10720 bytes
SHA-256: c4d63850247a17f058741055301b0267c17d4179a38e8e6d985ed25e05a232c7

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