Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f01170b34b13a99…

MALICIOUS

PDF

42.1 KB Created: 2020-08-28 00:06:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eff0446ca2c43bd28459f6484fcb5ca1 SHA-1: 6cf94f364da533e9150cd79906f51a6412a6778b SHA-256: 1f01170b34b13a9955ad4ccd3ea2c9f1671ef69aa55ac005f1894a1634d46e0e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a significant number of embedded URLs, with one identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL and references to other PDFs hosted on Shopify, suggesting a link farm or redirection scheme. The primary attack pattern involves luring users to malicious sites via these links.

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=to+kill+a+mockingbird+quotes+chapter+1 In PDF document text
    • http://pipojifik.geminimusicaltheatre.com/uploads/1/3/0/8/130814328/jorofaxemodole_tasopimamubose_guwukigig_pukesiwevawi.pdfIn PDF document text
    • http://files.unogroup-ucsd.com/uploads/1/3/1/0/131069978/628148.pdfIn PDF document text
    • http://files.frenchvintagehifi.com/uploads/1/3/1/8/131856330/pefeja.pdfIn PDF document text
    • http://wipusatab.silkysbrooklyn.com/uploads/1/3/1/4/131452923/7909275.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/1/0433/5176/9256/files/galactic_love_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4884/3929/files/57401910787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9879/0301/files/ruvupivesigivovegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4061/3286/files/vitezopinorolirodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4023/3880/files/unity_2019_android_sdk_path.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0350/9914/files/picture_word_association_worksheets_kindergarten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1935/2740/files/wasewesijekovopubamus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0275/7281/files/xenupokek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/vowepukapudos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5845/3928/files/adenoma_hipofisario_funcionante.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/poxusovasotofudaluduz.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 3

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_off000062be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62BE 5820 bytes
SHA-256: f109e59985e636927f128bcc90d1351ce1bf34721948f6de4a6672625d962439
font_01_sfnt_off00007653.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7653 11572 bytes
SHA-256: 20d04a02edddc5714c73995faf152edc7ad284f1ba92cbeb3e058170426c53e8

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