Malicious PDF — malware analysis report

Static analysis result for SHA-256 01a1e35e0463effb…

MALICIOUS

PDF

45.3 KB Created: 2020-08-15 00:29:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 33a4f47e139c9566a40b31e7a41f5976 SHA-1: ddab545f4a251004bef4e1f4f6362029d5f867df SHA-256: 01a1e35e0463effbd1e15b13fe3fdc46b01a1d26460b848833c3890cd5618472
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious domain, identified as a redirector for phishing or malware distribution. The document body, though partially corrupted, contains text suggesting a lure related to an 'Asus laptop hackintosh guide'. The presence of numerous external links, many pointing to Shopify domains hosting PDFs, suggests a link farm or SEO manipulation tactic to increase visibility of the malicious content. The ML classifier strongly indicated maliciousness.

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.ru/pify?keyword=asus+laptop+hackintosh+guide In PDF document text
    • http://pasawasu.thedoggybagllc.com/uploads/1/3/0/8/130814328/7a5e4.pdfIn PDF document text
    • http://gepegusum.togetherforthelongrun.org/uploads/1/3/1/4/131437987/88cbc6d8ef.pdfIn PDF document text
    • http://files.ldeleon.net/uploads/1/3/0/7/130775677/7c6b5.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/1/0430/7140/6237/files/27123235127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0858/7933/files/89801468800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/9011/7538/files/android_5._1_google_account_bypass.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0843/2040/files/borderlands_3_amara_skill_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/67599272733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0645/0074/files/88766120431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5103/8358/files/california_rental_lease_agreement_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8234/2815/files/loxesaxajaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/banoritawikoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13652925252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0902/7735/files/warsaw_pact_download.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 2

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_off0000716b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x716B 5292 bytes
SHA-256: cdaf385082bb528206446048c7a84ab928bac96d634b373dc133a0e463ae1b7e
font_01_sfnt_off00008360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8360 10916 bytes
SHA-256: 38739c486f361eb283f7adacc9f1ee34177fb601d4655f5b8cc8f5e85118638f

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