Malicious PDF — malware analysis report

Static analysis result for SHA-256 31a60170fda8905b…

MALICIOUS

PDF

46.2 KB Created: 2020-08-01 14:44:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c5fd97864f6d5dd900c0f8d3de594c9 SHA-1: e9caa230fe6153473ec1a0833b6318b70d324fa4 SHA-256: 31a60170fda8905bb09c4caf4a3e0480c3dd0b6fce9259d614e8648d2322307b
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. The primary malicious link, 'https://ttraff.com/pify?keyword=jailbreak+5.+1+1+ipad', is identified as a redirector to potentially harmful content. The document body, though heavily obfuscated, contains references to 'jailbreak 5.1.1 ipad' and the malicious URL, reinforcing the lure.

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.com/pify?keyword=jailbreak+5.+1+1+ipad In PDF document text
    • http://files.ps142m.org/uploads/1/3/1/4/131437530/6377fb0da2.pdfIn PDF document text
    • http://files.staceydrago.com/uploads/1/3/1/8/131871951/190565.pdfIn PDF document text
    • http://files.kogumasamune.co/uploads/1/3/1/8/131856108/7f062389e4.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/1/0430/7045/5965/files/sunopozeke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/ponebevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2484/9815/files/65250282147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2127/9138/files/90763577251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/fogetosexut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/nagonobojepadiwob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6729/files/vifasevuzebifonitaretevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7685/3664/files/fawuvafurif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5560/4121/files/34900979982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7596/8928/files/tuxezekenunozomujifojed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0237/9939/files/57463495640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5009/9107/files/zifeji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3032/2071/files/nixowupodasof.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76D7 5176 bytes
SHA-256: 075457d1f87ad3b1add6f88734cfe8c3e8f15fb79c838099eb1e0bfb5071948e
font_01_sfnt_off00008888.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8888 10508 bytes
SHA-256: 4e225dfae63374e46877a1f8a83c1b55188c4e3b16ede531f7339056cdc9fd2a

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