Malicious PDF — malware analysis report

Static analysis result for SHA-256 067c2542ab7489eb…

MALICIOUS

PDF

42.4 KB Created: 2020-08-08 09:37:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 69008ffca43ec549dd112337d9f866a6 SHA-1: b3ae011ef7c48f72ebc5cca51a6e00092d73f666 SHA-256: 067c2542ab7489eb72003c861536931463047574c0cd6211633b8ded3454f233
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a redirector at traff.ru. The document body and heuristics indicate a lure related to "Unix commands interview questions and answers for experienced pdf" to entice users to click the malicious link. The ML classifier strongly supports the malicious nature of this PDF.

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=unix+commands+interview+questions+and+answers+for+experienced+pdf In PDF document text
    • http://kivopa.loupfarms.com/uploads/1/3/0/7/130738799/a8d8ebf55.pdfIn PDF document text
    • http://files.americanbellydance.com/uploads/1/3/0/8/130814057/45125.pdfIn PDF document text
    • http://dudav.su649.org/uploads/1/3/1/3/131380485/983710.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/1/0434/1117/7629/files/20833475887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3629/5836/files/it-_203_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kevesuladufutaniwor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3485/3021/files/kotigafudowerig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9744/6816/files/brain_on_fire_my_month_of_madness_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8951/7973/files/japutokumaxejijorewagikew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5874/8822/files/94310678655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5528/3366/files/23672049650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9593/2584/files/define_accumulated_depreciation.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 4

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_off000065d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D0 5608 bytes
SHA-256: 9943d5beb79005e698403f792ad3c1efe3bc5744fdcca8f4e3959cff1df92dc6
font_01_sfnt_off000078e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E1 10524 bytes
SHA-256: d21e3af62e980931b49539fec483493097fc310ea0c30e2684619e6227fde274

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