Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6911890bff5d52b…

MALICIOUS

PDF

48.7 KB Created: 2020-07-30 19:11:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e7136f3cbd0902622c11b06309cf720 SHA-1: ef065d0ebbdd107dccc49a921353768160dd3714 SHA-256: d6911890bff5d52b5ed412b449552da835a68d84cc52e512b172941333f0506a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains multiple embedded links, with one heuristic specifically identifying a malicious redirector. The document body, though heavily obfuscated, contains text related to 'aleister crowley books pdf download', suggesting a lure. The primary malicious IOC is the redirector URL, which is likely used to host or chain to further malicious content.

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=aleister+crowley+books+pdf+download In PDF document text
    • http://files.peoplepaint.net/uploads/1/3/1/3/131379948/8651630.pdfIn PDF document text
    • http://files.artisticawardsbyjoebourne.com/uploads/1/3/1/4/131483955/4729f4e4bbc80da.pdfIn PDF document text
    • http://files.arabicwithnadia.com/uploads/1/3/1/4/131407549/5607946.pdfIn PDF document text
    • http://files.unfilteredwithsteveheg.com/uploads/1/3/0/7/130775084/xibekowovixukom.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/1/0432/5471/0427/files/90616245132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3830/2627/files/44739312428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2971/6374/files/kagitoba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/27392185694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9432/7974/files/nomijegatariremo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2788/9308/files/kerizepevoxokepalaguzemez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9944/6693/files/67882204069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1071/1971/files/sesepozorabusele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/44232234278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/10970108534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8414/3010/files/57631876904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4300/4322/files/51558731279.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C6D 5324 bytes
SHA-256: 2572b15e59b17c9944959f8bf38a22849f5aa7eee3d193426ef9318308039e6b
font_01_sfnt_off00008e9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E9C 12092 bytes
SHA-256: d9374ca64388c4622bd286de689a11e535078ef3c21324e2be379bc53e5dd3b5

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