Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8977c9eef9344e8…

MALICIOUS

PDF

50.1 KB Created: 2020-08-26 11:54:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f5264a29647f0d2fbf58a63b366fb6bb SHA-1: 674086ac01e3edb6ac5fc667c728ea3c8e0ab67e SHA-256: c8977c9eef9344e81b61d3f0e173fb393cef137da7bc9623b882a7b1d34a5d61
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified as a redirector. The document body, though heavily obfuscated, contains text related to 'Us dv lottery form 2019' and a URL that appears to be part of a link farm designed to attract traffic. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be luring users to a malicious site via a deceptive document.

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=us+dv+lottery+form+2019 In PDF document text
    • http://files.jaspercountytiochcommunityassociation.com/uploads/1/3/1/4/131437308/kubuwewuvipawozup.pdfIn PDF document text
    • http://kegik.agnihealth.org/uploads/1/3/1/1/131164250/d565e0.pdfIn PDF document text
    • http://begupu.newwoodturners.org/uploads/1/3/2/7/132740267/zoboregekalamojaba.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/1/0434/3182/1468/files/504_country_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/tisunasaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3011/6509/files/latupixumuzaredotigufok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5835/6639/files/fukufanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3859/5482/files/xagojoxoparibub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51439980706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9437/6599/files/lagipaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6463/1195/files/81553167573.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2998/7489/files/45829989940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9416/3109/files/73348375472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4695/9261/files/finnegans_wake_reader_guide.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7924 5112 bytes
SHA-256: 7037b119ca0b13268dd786787dce9799190cc00f99e097cb59c06f9aeab77e59
font_01_sfnt_off00008a9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A9C 10192 bytes
SHA-256: 12602299b66d53564fef4fbd0e19ef042a3f71e6be1da8fbe20314097e2d1fe7
font_02_sfnt_off0000ad76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD76 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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