Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f16d8cf83d00702…

MALICIOUS

PDF

45.9 KB Created: 2020-08-01 12:20:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9f5483de264ced8ff3ec36905c14427c SHA-1: 82a256f044e856da20cd4311a24f86cb3ac892fd SHA-256: 8f16d8cf83d0070299ba6c8890f78253fe7457a1f68d00ca8dce48b1f5eee8ac
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=pathfinder+ultimate+campaign+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of numerous other embedded URLs, many hosted on file-sharing services, further supports a link farm or redirection strategy. No scripts were extracted from this sample.

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.ru/pify?keyword=pathfinder+ultimate+campaign+pdf In PDF document text
    • http://files.vuwlss.com/uploads/1/3/1/4/131438397/tozopugiwodugo.pdfIn PDF document text
    • http://files.autopanelsworthing.co.uk/uploads/1/3/0/7/130739489/kaloseba.pdfIn PDF document text
    • http://files.lifelineracing.org/uploads/1/3/1/1/131164130/6575380.pdfIn PDF document text
    • http://files.cobramlawntennis.com/uploads/1/3/2/6/132681281/a9cfcc723307.pdfIn PDF document text
    • http://files.centralnjrotc.com/uploads/1/3/2/7/132740270/xubimipizegid_ribegoz_xipudolur_jitepipe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20931566490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/36275129450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3696/7063/files/how_to_copy_a_google_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2216/3876/files/35306975828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2749/5074/files/polexijitujudexipajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1288/1564/files/30582424169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2807/0052/files/padematoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2086/0064/files/64593941754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4183/2615/files/bivomagadisatesebego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0491/9971/files/25190399924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3680/2204/files/nifesijabit.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 5

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_off00007615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7615 5392 bytes
SHA-256: 04c6c8638eb2699993aa13745ceddb725706ed9b4f133349c04e93be22a744c5
font_01_sfnt_off00008848.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8848 10088 bytes
SHA-256: 6f5949d1140401dbc5db75b38312acdf54e310082d5d2e933dcd1a0f019a1e77

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