Malicious PDF — malware analysis report

Static analysis result for SHA-256 63df7119c88fd315…

MALICIOUS

PDF

40.8 KB Created: 2020-08-08 09:36:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d6efe5d61df684f7d24d4969d43c5bf4 SHA-1: d2b8a766b06db80d10c985c475ec041388a7931a SHA-256: 63df7119c88fd31562e21289f30da7b7d35483135a427af237a855adfd391f9f
202 Risk Score

Malware Insights

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

The PDF contains multiple links, including one to a known malicious redirector at 'ttraff.ru', disguised as a lure for 'KPMG aptitude test sample questions'. The document body, though heavily obfuscated, contains a reference to this same URL. The presence of numerous external PDF links suggests a link farm or SEO poisoning tactic to drive traffic to malicious or phishing sites. No scripts were extracted, but the primary attack vector appears to be social engineering via malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=kpmg+aptitude+test+sample+questions+pdf In PDF document text
    • http://files.bedsgympie.com/uploads/1/3/1/3/131382274/zawudimasekogotoxizu.pdfIn PDF document text
    • http://jugalazi.nasiiclothingstore.com/uploads/1/3/1/6/131637016/6414532.pdfIn PDF document text
    • http://pipegetep.graceandknowledge.net/uploads/1/3/1/6/131606407/vodale.pdfIn PDF document text
    • http://files.jacksonhighley.com/uploads/1/3/2/6/132681295/tugateja.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/1/0429/7211/9193/files/xomomobivinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8250/5628/files/ditum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/gamuvevipawubibamexezeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3729/4745/files/58091839687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9309/8660/files/78007977418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/61195171526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2484/9815/files/cours_sur_la_cirrhose_du_foie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3225/5392/files/dosijitoxebavikutawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6728/4379/files/59188083171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7155/3189/files/7388008273.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_off00006074.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6074 5360 bytes
SHA-256: 5eba59e748170ec90ec9b02c00c9c1d9947b0faecd77af3c8b8bbae6f6e7c6af
font_01_sfnt_off000072a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72A3 10412 bytes
SHA-256: 3bfd5b889d37769d55c5f4dc6d4b25dbc83031e2c39a4c6d4a8c91f1385fb92d

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