Malicious PDF — malware analysis report

Static analysis result for SHA-256 05bcedb792685555…

MALICIOUS

PDF

44.8 KB Created: 2020-09-15 21:30:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9bcf1a0dfae56e9e2e8c77c52b46df61 SHA-1: c270cfd186fb604cf7befc12fcbf6b698a857e9a SHA-256: 05bcedb79268555528e02c8a4bac60741fa3577a828e1918cd83159f08e80364
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary redirector URL is 'https://ttraff.link/pify?keyword=article+4+free+inhabitant+reddit', which is designed to lead users to potentially harmful content. The document body also contains this URL, reinforcing its role as a lure. The presence of numerous PDF links suggests an attempt to create a link farm or distribute 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.link/pify?keyword=article+4+free+inhabitant+reddit In PDF document text
    • http://mavokobun.splchampton.com/uploads/1/3/2/6/132680835/dbbd12a.pdfIn PDF document text
    • http://files.clannandrumma.co.uk/uploads/1/3/1/3/131379246/04d5ae3e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/92425763130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57790570823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/3677/2261/files/balancing_chemical_equations_worksheet_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5693/8646/files/xoburerokira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/8982/6470/files/zisojuke.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/7d1dc9_fb690b88cb7b4c29a4cc3e75733e95d9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/36f25b_6cfc4568164d434f870a14254c27a5ec.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/062c90_6d8f3a95873e4f6ab5deb3f794ac36f8.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e49726_9cae5825847843828ca8edfa6664fc50.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 6

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_off000064a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A3 4828 bytes
SHA-256: aa964b44e5d45c6f467f1afee21417bcab4eb33def798013814f11cc886d15c4
font_01_sfnt_off000074f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74F2 10356 bytes
SHA-256: a21392bbcdd6bf809dc7216ad45d298e4a1945166816bbdd2a511d319d8c52e7
font_02_sfnt_off0000984f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x984F 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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