Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a220f8a9f7752ce…

MALICIOUS

PDF

86.1 KB Created: 2021-01-05 21:37:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 70baba542e37ef6916d5aaa5e2362709 SHA-1: 3bd7a544c19428f80d1bf74a0dd73f122763321d SHA-256: 7a220f8a9f7752ce328f15d62c36effa3a3517ecc86f1bc8309b7ac9c6f1ccaf
222 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, including a critical redirector link to 'https://gettraff.ru/aws?utm_term=rockstar+games++races', suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a lure to external malicious content.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://gettraff.ru/aws?utm_term=rockstar+games++races In PDF document text
    • https://cdn-cms.f-static.net/uploads/4455399/normal_5fc1fc95e0cf9.pdfIn PDF document text
    • https://lavigumujow.weebly.com/uploads/1/3/4/4/134438710/fapaxux.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414864/normal_5fd382e61f173.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385228/normal_5f9cc152aaf79.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ae7f489-4031-48d9-999d-ca80045cd713/raxiwip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65ed347f-0a02-4df2-a176-666ed2992c56/fnh_slp_mk1_tactical.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/wikil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5764149-f09e-42fa-8c73-bd83d7d9a380/magetava.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe021f68-6b79-4116-936e-f84ddc9d5da4/29784073225.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55ea0948-48eb-405a-bdc9-e06d8ee36c24/princesas_para_colorear_rapunzel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e74fa19b-c658-4ba6-be51-c2464418b061/tokefaz.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001142f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1142F 5156 bytes
SHA-256: 75706d1ba5824ec1275b8c86f16c85f6d4dd952ace017261475e87a375a378c3
font_01_sfnt_off000125b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125B5 11152 bytes
SHA-256: 55e1f8a807da72ec98fc0c0ef45a2589a9953a67dd6c38538f79e60c614c1110

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