Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c31a217e45ce9be…

MALICIOUS

PDF

42.7 KB Created: 2020-08-24 16:01:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3d4abac4f517dd1a6d8ff8913653547f SHA-1: f3764536fe5d21db1b9657b8cd37616f782ca31d SHA-256: 7c31a217e45ce9be2a1b1827d67b024ee73a3d854c90773eb93284062ecc18fc
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to redirectors and SEO link farms, indicating a phishing or malware distribution attempt. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.ru/pify?keyword=parental+advisory+logo as malicious. The document body, though heavily obfuscated, also contains this URL and other benign-looking Shopify URLs, suggesting a lure to disguise the malicious intent.

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=parental+advisory+logo In PDF document text
    • http://sepuruxo.sarahgray.info/uploads/1/3/1/6/131606227/5577677.pdfIn PDF document text
    • http://files.tsongpl.com/uploads/1/3/1/4/131406269/f0bf2b9.pdfIn PDF document text
    • http://gorogupax.voiceoverdoctor.com/uploads/1/3/0/8/130814328/f1aed9.pdfIn PDF document text
    • http://pevazibin.lcandlepress.com/uploads/1/3/0/7/130776082/deserivum-vajikijirixa.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/1/0435/3038/7607/files/vpn_android_free_internet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8209/6541/files/74334559975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5496/4637/files/jexinanowaxokigep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1802/6140/files/online_editor_chrome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/bamu_result_2020_bsc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6499/1637/files/jeppesen_instrument_commercial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8122/6657/files/zixewibeji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1184/9892/files/avoidant_personality_disorder_case_study.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/piguxifuka.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_off00006a3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A3F 5156 bytes
SHA-256: 7ce1b6d42b7eab64b53ff34d9d12edadad25ccf6cf66838a8cbcaa5c32530958
font_01_sfnt_off00007be2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE2 10120 bytes
SHA-256: 2d4488a59b1185c74f6d7bc8404df6eaf8495d1789a996c4b59c34b593b5b677

Open this report in the interactive analyzer, or submit your own file for analysis.