Malicious PDF — malware analysis report

Static analysis result for SHA-256 70ab5479b817dbb2…

MALICIOUS

PDF

47.0 KB Created: 2020-07-31 15:08:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2a53b0019ee9f1f263dffa504f6fc39c SHA-1: b7c7dbd12d065cf394ac006680a4a655203dc98a SHA-256: 70ab5479b817dbb2f94b4e07caa31ee9803c13f5de2372babd1eb156721e8897
194 Risk Score

Malware Insights

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

The PDF contains multiple links pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body and embedded links suggest a lure for downloading PDFs, likely to distribute malware. The ML classifier strongly indicates maliciousness, and the presence of numerous external links to PDFs, some hosted on Shopify, points towards a link farm or SEO poisoning tactic to attract victims.

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=life+and+death+in+shanghai+pdf+download In PDF document text
    • http://files.polarispsychology.ca/uploads/1/3/2/6/132682076/rutamutoz.pdfIn PDF document text
    • http://files.ps38rclc.org/uploads/1/3/0/7/130740242/nufitifuwasa_menubotuwasowo.pdfIn PDF document text
    • http://files.abundantbehavioralhealth.com/uploads/1/3/0/7/130739056/d8b3a51851.pdfIn PDF document text
    • http://files.lizastories.com/uploads/1/3/1/4/131406698/2353052.pdfIn PDF document text
    • http://files.tastecoffeeonline.co.uk/uploads/1/3/1/1/131164556/vovibir_taduzabepodefus_lunokojudo.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/1/0431/8576/6561/files/gifera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1251/4201/files/xedalogofobareloxagigegup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2258/1923/files/babupekanok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3184/6296/files/wagexiromexuguwar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8342/3128/files/geresomajefidosutisobatut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7372/4825/files/40593467622.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/12439877651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6647/5174/files/ravol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1910/7480/files/gafopekamoguto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0190/3264/files/nisojatakigane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1695/3751/files/78531883357.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 6

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_off00007904.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7904 5028 bytes
SHA-256: d90459f8d510ff3a3648be5308e6c841e86cff3345315fa0683ba295c9ac5175
font_01_sfnt_off00008a32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A32 10196 bytes
SHA-256: 3c4885a4ef6551f7689efa82dbdc2d5c954258dfc408b3aa91031d62fb3771a9

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