Malicious PDF — malware analysis report

Static analysis result for SHA-256 2914b76d070efdaf…

MALICIOUS

PDF

40.1 KB Created: 2020-08-20 06:25:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cd70d6d9f8a695325499229fe84a5664 SHA-1: f892bacf3af8c17f6b9635774ab76bd347945861 SHA-256: 2914b76d070efdaf2278160a233c04db593325e675887bfb621c239de864b17c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. This suggests a link farm or SEO poisoning tactic to distribute malware. The document body, though partially corrupted, contains the target URL, indicating an attempt to trick users into visiting a malicious site under the guise of educational content. No scripts were extracted, but the presence of the malicious redirector is a strong indicator of 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.com/pify?keyword=large+numbers+worksheet+for+class+6 In PDF document text
    • http://pukigixa.standrewslutherangoldcoast.com/uploads/1/3/1/1/131164278/mulezu.pdfIn PDF document text
    • http://nizuja.bfstrings.com/uploads/1/3/0/8/130814328/3324.pdfIn PDF document text
    • http://pajowop.lovepositivecounseling.com/uploads/1/3/1/4/131453329/8890898.pdfIn PDF document text
    • http://kenewefe.gosportstiming.com/uploads/1/3/1/4/131482975/vabaribetedunoti.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/1/0433/0687/7080/files/13002849425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3811/3955/files/bipaxaluvevukebaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/7417/0535/files/afro_house_instrumental_beats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6786/6265/files/informer_song_daddy_yankee.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/kubota_zd21_parts_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3078/8758/files/ccloud_tv_addon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1321/6168/files/paladin_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8657/5771/files/43234250755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0196/9820/files/74671869278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6256/4766/files/culture_betsileo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7737/6936/files/fidagijelugitarig.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_off00005d71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D71 5684 bytes
SHA-256: b3806c81b208e1570173a4b684d91fc3b19b2f7c20055b9d9a61d1678fc763ec
font_01_sfnt_off000070b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70B1 10132 bytes
SHA-256: 67010dbde75815308ebb40e2e1a0a52c7e3daf25623dfb0fa994d36829647c05

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