Malicious PDF — malware analysis report

Static analysis result for SHA-256 13e178ec9b769dbf…

MALICIOUS

PDF

39.4 KB Created: 2020-08-22 12:55:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a289d5fcb6fe05e43dd76fa29d81a6d3 SHA-1: 473abd8544bb979251a9cb969fec084771f5c0d6 SHA-256: 13e178ec9b769dbff0e5ffd520be36342dc995fc3c707a19a20d894a16a913c5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing lure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=aglc+quick+guide+bond+university, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify links, likely intended to appear legitimate. The ML classifier strongly indicates maliciousness.

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=aglc+quick+guide+bond+university In PDF document text
    • http://files.otero2018.com/uploads/1/3/2/3/132303147/lefelaguwi_wadovipoda_pusuwu.pdfIn PDF document text
    • http://files.agelessadventures.net/uploads/1/3/2/3/132303133/557438.pdfIn PDF document text
    • http://gexen.lady-cakes.com/uploads/1/3/2/7/132740900/nenipepuguj-fufebidumusa-piwepezuta.pdfIn PDF document text
    • http://boneso.stfrancesbasketball.com/uploads/1/3/1/4/131453741/f71994dc8.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/1/0431/5843/8056/files/zeta_addressable_fire_alarm_system_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/ferelegepikinetusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8406/9529/files/59560673031.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5097/5910/files/attestation_assedic_pole_emploi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9930/7673/files/fomorifofewavow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8237/5577/files/fazabaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8475/0743/files/voziforiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6876/5861/files/aaa_logo_2014_full_version_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4161/2199/files/mikatuwobep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8525/0216/files/16781364239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0923/5353/files/98667430687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6769/4490/files/dimuzidewagi.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_off00005b47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B47 5376 bytes
SHA-256: bb66a190f0ded4d482fdb71882507d3d74198533cc23fb1d22c8bbc8f8e4147c
font_01_sfnt_off00006d9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9D 10232 bytes
SHA-256: d59e6a3633bafe1e85c3c3aab9f2cf56d713741cf26cd329c6607c6d5f0f2c96

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