Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2c9977bffdddfb0…

MALICIOUS

PDF

40.1 KB Created: 2020-08-12 11:51:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd2304c7be8c0d778db28fc28399951b SHA-1: 400938346a9345a4dedd52856bb9906d456a2f16 SHA-256: c2c9977bffdddfb009799322bc8073bd852918f81e4e73f6da6c0fa842a9e2c7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm designed to mimic search results, specifically for "Business model generation alexander osterwalder pdf free download". The primary link redirects to a known malicious redirector at ttraff.ru, indicating a phishing or malware distribution attempt. While no scripts were extracted, the PDF structure and embedded links strongly suggest a social engineering attack to lure users to malicious 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.ru/pify?keyword=business+model+generation+alexander+osterwalder+pdf+free+download In PDF document text
    • http://files.glaquaponics.com/uploads/1/3/0/7/130739919/988949b5bbb3.pdfIn PDF document text
    • http://pifavo.caldanpartners.com/uploads/1/3/0/7/130738971/8978903.pdfIn PDF document text
    • http://files.bowleylockcompany.com/uploads/1/3/1/4/131454521/c5a57aa4a.pdfIn PDF document text
    • http://pugumow.nikkiconstantine.com.au/uploads/1/3/0/7/130739197/0b83cad1a82.pdfIn PDF document text
    • http://files.nethertonmontessori.com/uploads/1/3/0/9/130969637/batakex.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/1/0435/4234/7927/files/lusef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/18554588532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7045/5965/files/20119536114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2624/9885/files/virigenojibomijujegigofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3791/7333/files/tivamifudopodolepenelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4848/4507/files/99864173943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4873/9740/files/10391386571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8134/3900/files/79469005411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/john_deere_1250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/39367698204.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_off00004faa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FAA 5568 bytes
SHA-256: 2a36944b4f2037e3522b4d00f2c44f30bf0c3cf64f7a4a54e32358bffed95506
font_01_sfnt_off0000629c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x629C 14756 bytes
SHA-256: 4b7f45e59b4e03f5e1a65ecafa82460aa817c0f26c8952d829de533cb87db98a

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