Malicious PDF — malware analysis report

Static analysis result for SHA-256 a785118c1f949b06…

MALICIOUS

PDF

40.6 KB Created: 2020-08-13 22:52:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0e06010dedd4076fcb79de71d8813816 SHA-1: c12966c95be6458e7935c2c70663f09d93432100 SHA-256: a785118c1f949b0610c95ecd20cbffc065f09a5d37ac42ba3d2ef5d340571b46
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

This PDF document contains a mass of external links, many pointing to benign Shopify URLs, but one critical link to a known malicious redirector at `ttraff.cc`. The document body is heavily obfuscated and appears to be a lure for a template download, which ultimately leads to the malicious redirector. The ML classifier strongly supports the malicious verdict.

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=personal+leadership+development+plan+template In PDF document text
    • http://vuzedi.sdsuzukiinstitute.com/uploads/1/3/0/7/130776031/geganukazumax.pdfIn PDF document text
    • http://situkopix.apexoutreach.com/uploads/1/3/2/8/132814975/5143584.pdfIn PDF document text
    • http://files.graydensolman.com/uploads/1/3/1/4/131438539/memugumagebefe_saginivewi.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/1/0432/1614/2497/files/fremenik_trials_osrs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7079/9510/files/pubumega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/xotexovede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2192/5525/files/jolly_phonics_a_z.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2011/6380/files/sisivixiduwavewavumelez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/51419895897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1550/4029/files/35894384698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0476/4068/files/nc_youth_employment_certificate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7241/3079/files/86776671079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/93476751869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3672/8726/files/zudelelowasepenujidivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6025/7177/files/structure_and_properties_of_carbohydrates.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_off0000622e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x622E 5260 bytes
SHA-256: 7618f21842b3371409e06587449e536f39d83c065a75438cf156086b10ee0f38
font_01_sfnt_off000073e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73E2 9936 bytes
SHA-256: 005f603907d3d55cae794688bb3f48d981c47c44b5dd9badbcbff61e50a7111e

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