Malicious PDF — malware analysis report

Static analysis result for SHA-256 93f4720ef5624910…

MALICIOUS

PDF

37.8 KB Created: 2020-08-21 23:49:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7f507c029241edfb87a9cb4c64fce555 SHA-1: 515d1adc6f7c6a4f9f0a692ea8d43aaba22a7c4e SHA-256: 93f4720ef5624910808004501387c846afd6d7b2163ec5a8a458bcbe480929ac
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. One critical heuristic identified a link to known malicious redirector infrastructure at `https://ttraff.cc/pify?keyword=belajar+excel+2007+untuk+pemula+pdf`. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a lure to download further content. The presence of a link farm and a malicious redirector indicates a phishing or malware distribution attempt.

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=belajar+excel+2007+untuk+pemula+pdf In PDF document text
    • http://files.fresnobridge.com/uploads/1/3/1/3/131383247/xitonanog.pdfIn PDF document text
    • http://files.celebelle.com/uploads/1/3/1/1/131163774/luwesimo_mawateni.pdfIn PDF document text
    • http://files.sonnetaccountants.co.uk/uploads/1/3/2/6/132683330/3185836.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/1/0434/2503/8497/files/muzukowiwep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/69318986007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9633/4753/files/73282013353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/29942895680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5498/0505/files/sojutufigidunixel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0763/1779/files/20472940818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9160/7190/files/87902285193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4653/5322/files/difference_between_aliphatic_and_aromatic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5930/4858/files/manimurelavego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0334/6078/files/45732835371.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7543/6698/files/953be8fc5154015699eb6c9b08748c6c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7539/3946/files/kaleshwaram_project_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1423/3000/files/bizukuxexit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6367/0944/files/todane.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 5

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_off0000557d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x557D 5736 bytes
SHA-256: d466032c1df07a054f1f163eb00947f3471cc455366d7ce3db4b492b26978609
font_01_sfnt_off000068fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68FA 9712 bytes
SHA-256: bb9b1f9327bcb3c6798ed8ac0f01c8c5204a531cba6fe153605b03557f2cfb5e

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