Malicious PDF — malware analysis report

Static analysis result for SHA-256 80ff037b8c5f22fd…

MALICIOUS

PDF

51.1 KB Created: 2020-08-23 02:45:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e80c1d744a9303d5c27724e56a04375d SHA-1: a0321801bb1a13e285fcfaa3f54b006b537a82bc SHA-256: 80ff037b8c5f22fd78ad443154f074ca581865b835dcc778b2aa40e388cd5ecb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, including one pointing to a known malicious redirector, disguised as a download for compressed Android game files. This indicates a phishing or scam attempt, likely to lead users to a malicious website. The ML classifier strongly supports the malicious verdict.

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://ttraff.com/pify?keyword=android+games+apk+obb+highly+compressed In PDF document text
    • http://fujani.janedenton.net/uploads/1/3/0/7/130739693/7878560.pdfIn PDF document text
    • http://files.threeatlantacats.com/uploads/1/3/1/4/131438079/viwebipizinowi_dironaxe_janojawumuwasi.pdfIn PDF document text
    • http://files.jgfirpo.com/uploads/1/3/1/4/131455275/618364b85a94.pdfIn PDF document text
    • http://files.venturecreationcafe.com/uploads/1/3/1/4/131408664/1ae21bb616ad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7403/5607/files/tubozijurefarivevon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5848/7715/files/reasoning_and_computer_aptitude_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7926/2615/files/potumigewovivesative.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4832/1692/files/36690591627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1751/8751/files/kalip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6377/9236/files/tezok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1054/6074/files/11987821135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8154/7424/files/kexilewuzola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/2365/6099/files/7045415123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4823/8242/files/married_life_in_islam.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B32 5492 bytes
SHA-256: 3cfa099f48767550bc8f84c23f952290b7b29cfdea711ad83f82673d9360bccf
font_01_sfnt_off00008da0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DA0 10412 bytes
SHA-256: c3476c2ca063bab77b045624648e393f29a0ff435b0d134f62208badb5429c4d
font_02_sfnt_off0000b140.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB140 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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