Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2926dba0cf1658a…

MALICIOUS

PDF

45.4 KB Created: 2020-08-18 21:33:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1705a7cd71263e8dfda651fd3fc1274d SHA-1: 100ba5aa62126a96180c54d5a072567d70da87b7 SHA-256: f2926dba0cf1658a129c5894fcfe32e474ea41ac7e337b525a18b00527eb98b4
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector pointing to 'https://ttraff.cc/pify?keyword=factory+reset+android+in+chinese+language'. The document also functions as a link farm, directing users to numerous external PDFs hosted on Shopify and other domains. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to harmful content.

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=factory+reset+android+in+chinese+language In PDF document text
    • http://fimane.northofthepines.com/uploads/1/3/1/3/131379225/7157675.pdfIn PDF document text
    • http://files.pinchpennythreads.com/uploads/1/3/0/7/130739837/4508f060489d.pdfIn PDF document text
    • http://files.uccloverdale.org/uploads/1/3/0/7/130740571/zewubaxanajoliko.pdfIn PDF document text
    • http://files.kind-mind.org/uploads/1/3/1/3/131383651/wifibafenijedimubiv.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/1/0432/5824/9380/files/98240863361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2755/2661/files/human_anatomy_and_physiology_2nd_edition_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7068/4317/files/8340812010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0624/6557/files/bulletin_de_paie_simplifi_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6704/7077/files/pakenajufilazogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2283/4071/files/computer_command_prompt_tricks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0557/4309/files/53618880023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2047/4779/files/relic_douglas_preston_lincoln_child.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2975/8103/files/50737226328.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 7

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_off000066fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66FC 5140 bytes
SHA-256: 6bad3427d1a2203276226b80254052fbdfd53a43dd47fec4a8d8f8b3fc9e86ad
font_01_sfnt_off00007870.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7870 9980 bytes
SHA-256: 71d00854d8011556f554ee438d2f3a6d60b276e926a32d3057d6ebf6600a6b0e
font_02_sfnt_off00009aa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AA1 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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