Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a42ce4c13622dc4…

MALICIOUS

PDF

65.0 KB Created: 2020-12-13 16:44:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d0015f0e4eac107c023515f7ac3d44f6 SHA-1: 77d0a88d70367f306548e966ce89cc2cbd7be1bf SHA-256: 9a42ce4c13622dc406dca028b15b8bab85c03b466bf822d0c040ba73ef5870ef
254 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded links, with at least one pointing to a known malicious redirector infrastructure at 'https://gettraff.ru/123?utm_term=earn+to+die+2012+unblocked+part+3'. The presence of a link farm suggests an attempt to direct users to potentially harmful content or phishing sites.

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://gettraff.ru/123?utm_term=earn+to+die+2012+unblocked+part+3 In PDF document text
    • https://s3.amazonaws.com/sivanira/zillow_homes_sold_recently.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/chromebook_keyboard_shortcuts.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/34944225235.pdfIn PDF document text
    • https://s3.amazonaws.com/dejazuvorira/wavexifotogedetelowerez.pdfIn PDF document text
    • https://litazivufili.weebly.com/uploads/1/3/4/3/134305244/8ba9b2b6be45.pdfIn PDF document text
    • https://wegupufula.weebly.com/uploads/1/3/0/8/130813429/vukepagifuvug.pdfIn PDF document text
    • https://mivodijabid.weebly.com/uploads/1/3/4/7/134732330/ee42df8d1e2.pdfIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/59051672372.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/0fbd98d2-1fee-46bd-a626-e19f244141ff/wuzamuvonujasakajaveket.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50a3bc15-3364-49b5-859c-60e8fd71e8c1/90770717122.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba407d2d-140d-4d7e-aa96-7e89b80f0a9d/50264589577.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b6aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6AA 2880 bytes
SHA-256: b90b109c34db9b2d961be312c0c64f13ba4f5af9c83d6ae4556a72cb7f468167
font_01_sfnt_off0000c0e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0E8 5540 bytes
SHA-256: 570338d27cbbfccecc8d6611ea23eaa891bf5a499da690736dad32e9f2918be8
font_02_sfnt_off0000d3d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3D3 10376 bytes
SHA-256: a9312ff7c282249e498dcf0a5ebe787df32cfab3e47feabc89aa8528d4d5cc6d

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