Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f2c6f4864e2bc72…

MALICIOUS

PDF

95.5 KB Created: 2020-07-28 15:09:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7183920a8e6797fc4b0cfec5e1126921 SHA-1: e2b384fbfb7c468d31f618a9c286153c5c35c624 SHA-256: 1f2c6f4864e2bc72a3ef1fe0417c92fb45b4f1786cad46d249a73adc0cae5154
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'nccn guidelines 2015 cml' which may be used as a lure. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content through a large number of seemingly benign links.

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.ru/pify?keyword=nccn+guidelines+2015+cml In PDF document text
    • http://files.ankorsstreetcollege.com/uploads/1/3/2/7/132740375/dizibebikebebizob.pdfIn PDF document text
    • http://files.bethbooram.org/uploads/1/3/1/4/131437493/4358940.pdfIn PDF document text
    • http://files.rkrally.com/uploads/1/3/1/8/131856539/1414960.pdfIn PDF document text
    • http://files.smsphonefix.com/uploads/1/3/1/6/131606208/c636cc0825a.pdfIn PDF document text
    • http://files.tanyadann.co.nz/uploads/1/3/1/4/131406300/fopokodazupon.pdfIn 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/1/0428/9468/8412/files/95377828786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3406/7615/files/46140962148.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1046/4667/files/62142618294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1790/3003/files/70979175588.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/zojelugegagadepepojovilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7315/8806/files/xegififofubitufedebazuxus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8120/2854/files/94191521907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8570/9987/files/jafajexunamijovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3389/2763/files/fawokefamus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4122/5880/files/91683647616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mojedisubeweful.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off0001177a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1177A 5064 bytes
SHA-256: fa7584fdb664b4bfbe47e1f3c0bde0d01b765e6008de76de171d81a9935f3fe8
font_01_sfnt_off0001289f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1289F 16812 bytes
SHA-256: 7d7486e5555e5876df1b5521abe06b15d19315e14fd1c1b2922092bb2bb8ce45
font_02_sfnt_off00015bda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15BDA 16060 bytes
SHA-256: 99ddc6f5858eb134f8024171ebe717cbd02485c31471b921a5021903b5272953

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