Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc840b614d4756b1…

MALICIOUS

PDF

41.4 KB Created: 2020-08-14 19:51:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 308c6e1130d46eee718e6135df7ca9bf SHA-1: 08b945ba755fe07f8f2ce3553c8a10e125380c50 SHA-256: cc840b614d4756b1a27d5b2f0536924c6c883125455c315f7b4c787a6da538a1
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a nutrition information search result. The document also hosts a large number of links to other PDFs on Shopify domains, likely as part of a link farm to improve search engine ranking and distribute malicious content. The ML classifier strongly indicated maliciousness, and the PDF structure itself points to a malicious redirector.

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.com/pify?keyword=boojum+burrito+bowl+nutrition+information In PDF document text
    • http://files.uskarateandboxing.com/uploads/1/3/2/3/132302787/kekoxune_wigigexupad_womekabi_zijol.pdfIn PDF document text
    • http://lineje.morschmachine.com/uploads/1/3/1/1/131163864/gosuxo.pdfIn PDF document text
    • http://wedesum.zionaquino.com/uploads/1/3/0/9/130969959/9352935.pdfIn PDF document text
    • http://mosab.divinebeautyexplored.com/uploads/1/3/2/8/132814930/da009d.pdfIn PDF document text
    • http://damuvo.waterselementary.org/uploads/1/3/0/7/130775403/b155790f6b332.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/1/0435/1649/3976/files/dragnet_aptitude_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8205/5829/files/bm_sharma_physics_jee_main.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4045/6360/files/segixenowax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43396058945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2813/5591/files/scala_web_framework.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5744/6050/files/pefufokuvotabosafezezogug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8946/8328/files/tifamafanidokanotodineb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/jedugegabuvajorutiwafaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/gibukefolumojopana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8774/8519/files/residential_building_floor_plan.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_off000063be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63BE 5092 bytes
SHA-256: e129d9358af9ad4bb4768453a1a984d33cae4e7bb79f7991864f22c377f82050
font_01_sfnt_off0000750d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x750D 10428 bytes
SHA-256: b026de7af372d8acad419b132b305a2d6652a96a7cf2d4edb2e1fdf9e8cd5e9d

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