Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ff02ada02d45237…

MALICIOUS

PDF

42.7 KB Created: 2020-08-11 09:04:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d9637d350108aaefe162c61fd378c7fb SHA-1: dd3b37fd60b0bb5d5b4d9eec608f2e2d819438aa SHA-256: 5ff02ada02d452374615300bb4e0c3d1af4288dbc94a0666b53eb4032172c0d0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains the same malicious URL. This indicates a phishing or scam attempt, likely to lead the user to download further malicious content or visit a compromised site.

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=os+axiomas+de+zurich+pdf In PDF document text
    • http://vimov.education-deans.org/uploads/1/3/2/8/132814930/nuserolu-vegoka-rizakusinoga-pilalosok.pdfIn PDF document text
    • http://gepodos.barteeranchllc.com/uploads/1/3/1/3/131384240/1c7d5.pdfIn PDF document text
    • http://files.canineandequineranch.org/uploads/1/3/0/8/130813458/548cd8167a6.pdfIn PDF document text
    • http://files.bxsci83yearbook.org/uploads/1/3/1/8/131871864/xesutuxopo.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/1/0433/7834/4097/files/difosaniluludor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3197/8403/files/rusifupofoburunolalefaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8511/1203/files/7223913054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8624/2209/files/29189725536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0133/0340/files/vuwikag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0601/7185/files/connect_flash_express_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6635/2025/files/73134053850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2358/8773/files/mirujisib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5283/4717/files/45382235617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2020/6758/files/94459960953.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_off000065e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65E4 5508 bytes
SHA-256: 9f533f97a5dda3aa4df572f40444b3e518788ab222977ec5332d1769d9fda51e
font_01_sfnt_off00007886.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7886 11168 bytes
SHA-256: 5d1e5daeac021913f5aa285abd0cf194eb4fc87bb3de97ec2b42f4ff11777eb7

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