Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2f187e05c87cfd5…

MALICIOUS

PDF

72.8 KB Created: 2020-08-26 00:08:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d14678ef57f4c40b5908bdd4d19c5a20 SHA-1: f0d63b06e703e9efa95880ce1d32bf5ca8eebbbc SHA-256: c2f187e05c87cfd50ced7fe2cbdcf192074a25911126d94c6ce3ab986be58a66
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be part of a lure for free downloads. The presence of many links suggests an attempt to generate traffic or phish users, aligning with a spearphishing attachment tactic.

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=theodore+roosevelt+the+man+in+the+arena In PDF document text
    • http://files.giafrino.com/uploads/1/3/2/7/132740639/f47e52667bea80.pdfIn PDF document text
    • http://files.hencecounseling.com/uploads/1/3/1/4/131407493/9063356.pdfIn PDF document text
    • http://files.pnagkc.org/uploads/1/3/0/8/130874566/pemulewebikijab.pdfIn PDF document text
    • http://sejog.jyliannmariedavis.com/uploads/1/3/1/8/131872225/33e2f6.pdfIn PDF document text
    • http://dasomemiw.mdlashesllc.com/uploads/1/3/2/7/132741508/xevekebem_suwurediju.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/1/0429/2050/9596/files/new_black_panther_party_uniform.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8839/5936/files/28194019125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1009/2182/files/pufuratigom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0065/9100/files/sojimiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/76685421079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/jubogokafujamafezepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9320/5916/files/japugugoliwuni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4959/9644/files/75000783921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8834/6262/files/9614287414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5262/2236/files/geometry_eoc_practice_test_2.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_off0000e375.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE375 5076 bytes
SHA-256: d9c008b124a51337eb8ee2e1aad87724c323ad0a477748255b665e2ae036bc5d
font_01_sfnt_off0000f491.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF491 9896 bytes
SHA-256: 91891edc3b6734864fd46f5284a8ef6a0067f174c05f7911060e98d28006b16c

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