Malicious PDF — malware analysis report

Static analysis result for SHA-256 f77952564eac7681…

MALICIOUS

PDF

39.7 KB Created: 2020-07-26 04:48:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6f3d2df7aa9d8970a470a4b31e5d652b SHA-1: 0856fb31ea81df0459ed9468aad9aa8b55eaa75e SHA-256: f77952564eac7681f2884f4f0a379631c50f5d1b686312f088f16cb4c1908129
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links directs to 'ttraff.ru', identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to movie downloads, suggesting a lure to entice users to click the 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=bazaar+movie+free++worldfree4u In PDF document text
    • http://files.somalibantucitizengroupoforegon.org/uploads/1/3/0/7/130775905/96acff.pdfIn PDF document text
    • http://files.stayinthearena.com/uploads/1/3/1/3/131380467/1887699.pdfIn PDF document text
    • http://files.reaysplace.com.au/uploads/1/3/2/7/132741144/1c322bd88921.pdfIn PDF document text
    • http://files.thecorpsridingclub.com/uploads/1/3/1/1/131163669/108722418accd73.pdfIn PDF document text
    • http://files.pickuptrucksonline.com/uploads/1/3/1/3/131384335/163796.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/1/0437/9531/6896/files/xapakuguvipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6986/6133/files/61701608964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9461/3924/files/32515382980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78649322563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2754/5757/files/26055263231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3684/3933/files/tobabimuwubekudozesenozot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2259/7796/files/digezalawemobutozipir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4243/1395/files/93768114051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1258/5634/files/kizavazutivila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5601/9109/files/79989835494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3497/6157/files/98934768254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7740/2778/files/44255933451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gerakofidasetivivirodipel.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F31 4908 bytes
SHA-256: 56def709b0166345caf623aaed1da992c6e9a9ce1e3acfb54b56dbdefddde49b
font_01_sfnt_off00006ffc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FFC 9784 bytes
SHA-256: d00de3abaff15021694f1caed2f84fe26bdad61d645f6b20376f4b43c64a7c42