Malicious PDF — malware analysis report

Static analysis result for SHA-256 a92aea712c8215ce…

MALICIOUS

PDF

40.3 KB Created: 2020-08-12 08:52:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 599a8d49f6cac2fb40487b31d2652c81 SHA-1: 9c8ab14d7924961c953357406db3463cd663e67f SHA-256: a92aea712c8215ce7d5ec8647c13fc92e26b81e28c339c3eca2b7bfa04ef262e
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=biosynthesis+of+tropane+alkaloids+pdf'. This suggests the document is designed to lead users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm SEO tactic to obscure the malicious redirector. No scripts were extracted from this sample.

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.ru/pify?keyword=biosynthesis+of+tropane+alkaloids+pdf In PDF document text
    • http://gowevol.livinginrogerspark.com/uploads/1/3/2/7/132740405/7f50ff66a71172.pdfIn PDF document text
    • http://files.elliebeanphotography.com/uploads/1/3/1/6/131606411/4827412.pdfIn PDF document text
    • http://files.toromewithdino.com/uploads/1/3/0/7/130739387/vupilediwojalej.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/1/0432/8580/7269/files/waluwos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1021/8391/files/fikavapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4576/3744/files/11814654051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3912/9751/files/2812075838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2684/9700/files/41468293098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2340/8032/files/neufert_architect_s_data.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4788/6743/files/02_acura_tl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7937/6798/files/34812965628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1627/3563/files/static_banking_awareness_2020_gradeup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2998/7489/files/tisonagadijerol.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 4

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_off00005f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5A 5344 bytes
SHA-256: 3282109ce4702890be9c05f2b63e9490cdd19adfdcf89b3045d915ff1a312596
font_01_sfnt_off00007180.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7180 10260 bytes
SHA-256: 1dac5a81811eed8df584d43cb7ea0db82fa21307c9924e7a875bdb8f76b671fe

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