Malicious PDF — malware analysis report

Static analysis result for SHA-256 344900f08f1daa67…

MALICIOUS

PDF

35.8 KB Created: 2020-09-17 07:54:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4d57e065af8698ecc855a247edabab12 SHA-1: 1076001ea2d14b1fd4c71d707d38781744e999a3 SHA-256: 344900f08f1daa676f7db03360abb484125b65890d8eeb0843712956d3839d27
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which are identified as malicious redirectors or part of a link farm. The primary lure appears to be related to 'drift hunters hacked unlimited money', suggesting a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious, reinforcing the findings from the heuristic rules.

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.club/wix?keyword=drift+hunters+hacked+unlimited+money In PDF document text
    • http://files.biamontestables.com/uploads/1/3/2/8/132814977/930bd444195b23.pdfIn PDF document text
    • http://nogejaza.dogoodmediamix.com/uploads/1/3/2/7/132741593/ef12c.pdfIn PDF document text
    • http://files.casapinessuperherorun.com/uploads/1/3/1/4/131438018/xuvefijoriwo.pdfIn PDF document text
    • http://vovawapi.soundshilohshepherds.com/uploads/1/3/0/8/130873947/fadolini.pdfIn PDF document text
    • http://files.pome.ca/uploads/1/3/1/4/131408280/1a4fd8a.pdfIn PDF document text
    • http://luxej.teamwinfrey.org/uploads/1/3/0/7/130739298/8604758.pdfIn PDF document text
    • http://files.mostlymaille.com/uploads/1/3/2/6/132695867/pazidugifatutezexu.pdfIn PDF document text
    • https://http://www.crazygames.com/game/drift-huntersIn 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/1/0433/0687/7080/files/mapitawaluzosamorexub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5703/7990/files/asme_journal_of_mechanical_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/6367/6580/files/wovibobutejejesuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8657/7818/files/advanced_computational_mathematics_notes.pdfIn PDF document text
    • https://4cf70981-55fc-46a0-aaf8-8d1d45da1779.filesusr.com/ugd/1e8759_ab7721e5e0e94d5ba35cc2bdf143cc56.pdf?index=trueIn PDF document text
    • https://6e6672c4-0f08-4f38-9a55-2f2ee55ea06a.filesusr.com/ugd/008e52_37f7f9065b434a9ba488e6d17cb5c142.pdf?index=trueIn PDF document text
    • https://c778279a-e9d0-45bd-a7ef-1026564a1820.filesusr.com/ugd/b18e4d_c8b895337d5545349af01498cafc96f9.pdf?index=trueIn 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 5

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_off00004cd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CD5 5424 bytes
SHA-256: 58f509350b8aedf3aaa71302eb731051a193194bfb9b779b023f4c9dc5ae39fb
font_01_sfnt_off00005f2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2B 10284 bytes
SHA-256: b1f7a948abde34a3aa7d0c00cbeb82825982b09ddcbf600f25f1fd3747baccb3

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