Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdbb150bca9729f5…

MALICIOUS

PDF

70.5 KB Created: 2020-11-12 13:33:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 87f1162a0e0d8d6d277b975a3881037f SHA-1: 71c8073f7f2f8f5975eabe51703901e2a8f5f250 SHA-256: fdbb150bca9729f5839d3e48f36987bd2c30049b6ca36c0b48f54459881a0880
254 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous links to external resources, including a redirector at 'traffine.ru', suggesting a phishing or content-luring campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URLs and the nature of the heuristics point towards a phishing attack that likely uses a link farm to distribute malicious content, potentially disguised as financial documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffine.ru/aws?utm_term=excel+sheet+for+expenses+and+income In PDF document text
    • https://cdn-cms.f-static.net/uploads/4385863/normal_5f93d74542995.pdfIn PDF document text
    • https://safikevobajegev.weebly.com/uploads/1/3/4/3/134352312/819571fce059246.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367950/normal_5fa9713e2f6f8.pdfIn PDF document text
    • https://japiloxekafu.weebly.com/uploads/1/3/4/4/134480389/7254475.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408184/normal_5fa6b08c2222f.pdfIn PDF document text
    • https://rineragafuvotut.weebly.com/uploads/1/3/4/4/134442037/lirifupafizake.pdfIn PDF document text
    • https://bebefezagogu.weebly.com/uploads/1/3/4/3/134372182/bijokebelomagejawaja.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426813/normal_5f9c52bb60401.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410211/normal_5f9967a9dfefc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/39aaae26-1e82-4d91-a854-e320ba54b54b/41041997721.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c35e830d-a99d-4d6a-85dd-273ea6db839d/sofam.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 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c9db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9DB 5208 bytes
SHA-256: fd9bad2ebb71f3946165262a45df0ed880ffc2ad03f50a144661d309e7307534
font_01_sfnt_off0000db53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB53 10548 bytes
SHA-256: 1ea8146e9c93cc4d11842e6c30f23657fd34581a151a92ee7b8e6000638c7464
font_02_sfnt_off0000ff3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF3D 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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