Malicious PDF — malware analysis report

Static analysis result for SHA-256 11c5715834dd6914…

MALICIOUS

PDF

57.0 KB Created: 2020-08-22 20:56:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f87cfcd7e50dd903b42b84625028787d SHA-1: 6a8c55e2d177b70d8203d605bd0fddb57087a314 SHA-256: 11c5715834dd6914665918ad9756873a79641419f6e6f9b2aa4c842e448e7cee
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 malicious URL identified is 'https://ttraff.com/pify?keyword=tablayout+android+library', which is also flagged as an SEO redirector. The document body, though heavily obfuscated, contains references to the malicious URL, suggesting an attempt to drive traffic to malicious infrastructure. No scripts were extracted, but the presence of numerous links points to a link-farming or phishing attack.

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=tablayout+android+library In PDF document text
    • http://fekapude.goodnews4thecounty.com/uploads/1/3/1/4/131453574/8305936.pdfIn PDF document text
    • http://salud.zmagence.com/uploads/1/3/0/7/130738870/xefalujosoxuneb.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/1/0429/9672/7962/files/fubafidozidofak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4488/7963/files/79664155707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5942/1092/files/72075130319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/tosibewudegokalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1609/2828/files/transformers_bumblebee_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2622/6075/files/93398175986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6978/2693/files/gupegoketegixozuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6403/3429/files/zogre_flesh_eaters_osrs_quick_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/8348/1507/files/62511480128.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
🗂 Part of campaign: goodnews4thecounty.com 4 samples

Related samples 1

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_off0000934c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x934C 4832 bytes
SHA-256: 19b07950d8cbd25cd93d98de20880c46f8429766c2e906e7dda075bc7537334c
font_01_sfnt_off0000a3c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3C8 16104 bytes
SHA-256: bdf82e439dba99e55d76642d51990f18930e11f29c0e615f5495d52f97c2863b

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