Malicious PDF — malware analysis report

Static analysis result for SHA-256 1126fa153a4fa10a…

MALICIOUS

PDF

43.1 KB Created: 2020-09-11 10:42:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 960898f28da806056be1f2b01351b62b SHA-1: fc08b46d1821fd97fb7db1af173deb71af289f1e SHA-256: 1126fa153a4fa10a64c49729eb0e7dad8ba6a565f73e15435109b2855e5c59be
194 Risk Score

Malware Insights

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

The PDF contains a link farm and redirects to a known malicious URL, indicating a phishing or malware distribution attempt. The embedded URLs and the document body's structure suggest it's designed to lure users to external sites. No scripts were extracted, but the PDF's structure and linked URLs are sufficient to infer malicious intent.

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.club/wix?keyword=nutritional+information+in+brown+rice+flour In PDF document text
    • http://files.microneedleregulatory.org/uploads/1/3/0/9/130969209/giwuvizalapunemaf.pdfIn PDF document text
    • http://files.apneaodyssey.com/uploads/1/3/2/8/132814050/xozomobewigo.pdfIn PDF document text
    • http://files.mtviewcrc.org/uploads/1/3/1/8/131871515/dofebekuwosuxoka.pdfIn PDF document text
    • http://files.bestgardendesign.co.uk/uploads/1/3/0/9/130969607/4312623.pdfIn PDF document text
    • http://nofibivok.okrarestaurantgroup.com/uploads/1/3/0/8/130874067/8200659.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/b8bbd7_89c5026af70e47dc86003449089e25cd.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0994f9_b8907654eb6842068061e9de88e096d8.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c3548c_eaceb8d9d5a54b18afc4a3643a36b74c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5431/8239/files/93443603146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7936/7846/files/jio_caller_tune_number_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6878/3766/files/install_android_app_on_mac_os_x.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0667/1517/files/gidurowirifebetali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3504/1702/files/human_diseases_a_systemic_approach_8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3588/5725/files/xaxisodezuvuziru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0853/2380/files/46263732041.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 8

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_off00006b45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B45 5052 bytes
SHA-256: b0b5ab470bdb1adac5ecfd79a201243f19925510b5c3abdc36d959e9754e1fcb
font_01_sfnt_off00007c79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C79 10232 bytes
SHA-256: aeb74744f777ed6e26c1c8684e5f114de5a0b278458f479e34e266d46ca099ed

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