Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c78c213f4b9d20a…

MALICIOUS

PDF

42.6 KB Created: 2020-08-21 21:02:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8cfbd007ec9da3d7ebf4d1323fb56df0 SHA-1: 494d910058e5f9699e31a73358520f69f44fe752 SHA-256: 9c78c213f4b9d20a6d305449a693c23c85b33f4080120fed8fd63050d56bd009
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links redirects through 'ttraff.cc', a known malicious redirector, to a lure for a 'free slideshow template after effects'. This indicates a social engineering attempt to drive traffic to malicious sites. 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.cc/pify?keyword=free+slideshow+template+after+effects In PDF document text
    • http://nikage.sustainablespaces.com/uploads/1/3/2/3/132302782/143cd56e4ef0.pdfIn PDF document text
    • http://fuwil.soarohio.org/uploads/1/3/0/8/130874113/jabaxosotelibo-mavitudul-volagexijufor.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/1/0435/4270/8378/files/gta_4_pc_cheats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7065/1542/files/mcquarrie_physical_chemistry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1141/4943/files/xenibowimifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0314/9462/files/android_google_calendar_api_add_event.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1970/6279/files/steering_committee_interim_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2201/6934/files/4921693609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4041/6678/files/jidokekob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0027/3830/files/88830302239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1143/2857/files/honda_generator_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5215/4532/files/fomewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2284/4067/files/48981147222.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_off0000689b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x689B 5440 bytes
SHA-256: 689a04e1564ca62c8222de67e8e1f8f0c330e8c7ca6dda0634744f177188291c
font_01_sfnt_off00007b07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B07 10156 bytes
SHA-256: 1dcd6380be5726e1cf4e4b488557095ecd061e1a350a720f527346c1cc7651df

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