Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cc7178cd59c4f9e…

MALICIOUS

PDF

40.0 KB Created: 2020-08-21 15:12:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: de3ef50c369cdcfead06f2a0aa2d3114 SHA-1: f3d0c7ae1bcf02213b150d37f852b506d4abee09 SHA-256: 5cc7178cd59c4f9e5d48a6f239173be64706f53ba68af967f3e775a2729727e2
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to SEO-optimized PDF hosting sites, likely as part of a link farm. A critical heuristic identified a link to known malicious redirector infrastructure at https://ttraff.com/pify?keyword=thai+visa+on+arrival+application+form+2019, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to a visa application 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=thai+visa+on+arrival+application+form+2019 In PDF document text
    • http://files.animationstationpodcast.com/uploads/1/3/1/1/131164364/2006666.pdfIn PDF document text
    • http://fufekuvat.nicholsonflowers.co.uk/uploads/1/3/1/6/131607163/kixuwesexu.pdfIn PDF document text
    • http://files.shelter-share.org/uploads/1/3/1/3/131383283/fc628b1b798.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/1/0436/1663/2992/files/leon_plus_anesthesia_machine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7617/2441/files/clinical_biochemistry_laboratory_tests.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9015/7473/files/majevusalegulujemumutito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3765/5193/files/c_vector_iterator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/gefezesivapewisexabufas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/tomb_of_annihilation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1260/4582/files/41265671389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/desain_pembelajaran_addie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/adobe_file_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2174/6847/files/vijunusakivumam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4747/7667/files/comma_usage_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3359/8880/files/dofuzip.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 7

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_off00005cf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF6 5748 bytes
SHA-256: 949244ac4c1f750e8acd5e7c561ae378eafc2b33e38bd5b9058bab582ed14157
font_01_sfnt_off00007059.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7059 10192 bytes
SHA-256: beb6025b1addfbc1d4f00a03b6f80af83c204453a2f051774a2da931125a6267

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