Malicious PDF — malware analysis report

Static analysis result for SHA-256 792de0d9cff769bf…

MALICIOUS

PDF

41.9 KB Created: 2020-08-20 03:49:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 735913daf33e4d7e4a55490e027751ef SHA-1: 716e3ae6c8bb51247604e5330c118d1a34fd9721 SHA-256: 792de0d9cff769bf9812d6258fec6f14944285fffab2a0a2c0da2fee391d64f3
194 Risk Score

Malware Insights

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

The PDF document is designed as a lure, masquerading as a download for AVG for Windows XP SP3. It contains a mass of external links, many pointing to a redirector infrastructure at 'ttraff.cc', which is flagged as malicious. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages. The document structure and embedded links suggest a phishing or scam attempt.

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/pify?keyword=avg+for+windows+xp+sp3 In PDF document text
    • http://kosas.fullcirclepop.com/uploads/1/3/1/4/131406665/xakomebodopeme-muvinexita.pdfIn PDF document text
    • http://wifomu.mariecostanzaphotos.com/uploads/1/3/1/6/131636725/8606360.pdfIn PDF document text
    • http://files.athenasbyjoellen.com/uploads/1/3/1/3/131383426/gopewefunodofe.pdfIn PDF document text
    • http://files.nationincorporated.com/uploads/1/3/1/4/131482884/6275895.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4868/9050/files/brain_on_fire_full_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6668/7642/files/49620718833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3141/2379/files/rabuwebur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7952/4759/files/norogekukisuvudep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1218/5499/files/26358240915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7694/3000/files/principles_of_biostatistics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6223/1201/files/87200277540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1256/2849/files/body_systems_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1959/9004/files/widubodajunekibadasuki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3246/0960/files/77562478983.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000056b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56B0 4932 bytes
SHA-256: 1883f967b3a1398b5c4fe2265aeccdddbd95d823b58604efcf56fd27121ec01b
font_01_sfnt_off00006795.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6795 11744 bytes
SHA-256: a3740ac163310a74dce3d179da572daf3414d9b4a1205183d7cb7537c7c17470
font_02_sfnt_off00008cbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CBB 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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