Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5d96556c10f01b4…

MALICIOUS

PDF

58.4 KB Created: 2020-07-29 01:26:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c9c58d56fc50d2810fa0b1ec6253e297 SHA-1: afd5d2e82c6a56b03161bba5e863723716947f3e SHA-256: f5d96556c10f01b432a95b4792a769a79b4c3e14d7c19e8ed7ea468d83309282
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains text related to 'Levelling report procedure', suggesting a lure. The primary malicious IOC is the redirector URL, which is likely used to funnel users to a phishing or scam site.

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.cc/pify?keyword=levelling+report+procedure In PDF document text
    • http://files.yoazama.com/uploads/1/3/2/8/132814241/xobezefodis.pdfIn PDF document text
    • http://files.saskatoonbraves.com/uploads/1/3/0/8/130813934/b2d1afee6.pdfIn PDF document text
    • http://files.bankaitislab.com/uploads/1/3/2/3/132303209/zinofuvesetutidobu.pdfIn PDF document text
    • http://files.jackethestarlighters.com/uploads/1/3/1/4/131483154/kozepefovugaxerexa.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0431/6259/9586/files/69212496877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5025/5014/files/gurobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5847/1846/files/73595513901.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1839/3499/files/9690655360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/37629755229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0645/9029/files/rurinowilikiwof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tedogunugovosilogupex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5308/8921/files/92711030501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7987/4213/files/16729667480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5986/3961/files/20283640712.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9827/3944/files/77442614486.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 3

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_off0000980f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x980F 1540 bytes
SHA-256: 66b01f4179ab410975e429d3ab234f1e444a68c3b8eace572e47ca250d509ffa
font_01_sfnt_off00009fef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FEF 4736 bytes
SHA-256: 4961b72aa93dadc9f769916c0f5f2b6a87db43ae1e8683d9d2a9de51c41c6a0a
font_02_sfnt_off0000b01c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB01C 14084 bytes
SHA-256: eb3a65ed3f4761643bde2800ccb6842607dd6001f61c8f4722ca76a56c7a7f48

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