Malicious PDF — malware analysis report

Static analysis result for SHA-256 34dd4022c4df18a9…

MALICIOUS

PDF

44.6 KB Created: 2020-08-14 11:21:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 65f19babacf7287773441fcc457a3e47 SHA-1: 6e5ac552cf581ab8ff38e23999d14e46e66634f3 SHA-256: 34dd4022c4df18a9e16c12ab9b83bc9dcbe1f2bc111bb1d77d86310403db11d1
194 Risk Score

Malware Insights

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

The PDF contains a mass link farm, with many URLs pointing to Shopify domains and one primary redirector URL. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the primary URL, https://ttraff.cc/wb?keyword=english%20practice%20papers%20for%20bank%20exams%20pdf, leads to known malicious infrastructure. The document body text, though partially corrupted, contains keywords related to exam papers, suggesting a lure to entice users to click the malicious link.

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.cc/wb?keyword=english%20practice%20papers%20for%20bank%20exams%20pdf In PDF document text
    • http://files.guildofoccultsciences.org/uploads/1/3/1/4/131453124/f4939af0fe.pdfIn PDF document text
    • http://files.nikkileon.de/uploads/1/3/0/7/130739443/2330358.pdfIn PDF document text
    • http://goviku.dimage.com.sg/uploads/1/3/1/4/131483044/4b58f3007.pdfIn PDF document text
    • http://runogebi.dariodidonato.com/uploads/1/3/1/1/131164312/tenepejarupup-besimigigi-xidalalid.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/1/0432/7201/1941/files/pofisugesufamug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5081/0014/files/42959259713.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6291/1391/files/20732200024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/vunibakexivagadovef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6617/9230/files/munobedifafevowonupoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8255/5297/files/jasupulijufiwibigumuzegoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9930/8700/files/muthoo_bargaining_theory_with_applications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2381/1239/files/fleetwood_mac_dreams_guitar_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2231/7728/files/simple_past_tense_story_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1534/7103/files/sidapitonesawedal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4361/8965/files/danusopajedu.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 2

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_off00006e97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E97 5800 bytes
SHA-256: 808c4f011e8c361cc60c905efcf250ebe8b0c25e68bc0b970e0ab934d1c2c775
font_01_sfnt_off00008220.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8220 10416 bytes
SHA-256: ae5dcd4539ae195d501884ba3d9061ee0e8cfee716558621fd5d20947ee2399a

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