Malicious PDF — malware analysis report

Static analysis result for SHA-256 847678b838385197…

MALICIOUS

PDF

67.0 KB Created: 2020-12-18 05:04:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-05
MD5: 5370cacf7895d3b37c0b8d21b40fc2ac SHA-1: 95133a1dfc1b019a1ccf24e5b9f39a65e00fc511 SHA-256: 847678b8383851972db5487e2a1be62f4bf6ab804b0c0a2ef47d7e3696d9f244
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document contains numerous external links, many of which point to PDF files hosted on various cloud storage and website builder platforms. The document body text, while truncated, mentions 'Cheat engine 6.7 free pc' and includes links that appear to be part of an SEO link farm designed to lure users into downloading malicious content. The presence of PDF_SEO_LINK_FARM and PDF_SEO_UTM_REDIRECTOR_LINK heuristics, along with ClamAV detection as Pdf.Phishing.Trojan, strongly indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffe.ru/wb?keyword=cheat%20engine%206.%207%20free%20%20pc PDF link annotation
    • https://rakafofolobe.weebly.com/uploads/1/3/4/6/134649319/f9f45003.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/ladodipovabafav.pdfIn PDF document text
    • https://balesiloruj.weebly.com/uploads/1/3/4/6/134671801/bdeac786a4600.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/impregnacion_amiodarona.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454545/normal_5fadd1ea1052e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393486/normal_5f8eceffef9f1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475219/normal_5fdbec86ccbb8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444351/normal_5fad9e1faf4e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383801/normal_5fa765648c6cd.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/titanusikilawitafediru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383464/normal_5fa31a64a27ac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417419/normal_5fc9d8d6a5145.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403561/normal_5fa490fa73a41.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/pisufojupi.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c97d.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c97d.bin)
    • 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 extracted file (font_00_sfnt_off0000c97d.bin)

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_off0000c97d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC97D 5236 bytes
SHA-256: b08587c4603e155ebb4d1cf4609238551f11f263d1437c58a6c956b1cddd430d
font_01_sfnt_off0000db5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB5C 10524 bytes
SHA-256: 0f090f57cb7e7680248319005abd8502466015f8fe4b24debe7eddd3bbda2bfc

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