Malicious PDF — malware analysis report

Static analysis result for SHA-256 611454f5aa429a42…

MALICIOUS

PDF

50.3 KB Created: 2020-07-30 03:20:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3373c457b53de9eb8f4a3aa3e7ab6f1e SHA-1: 88248297819cd6863bd3992be9f20b7dda6c707c SHA-256: 611454f5aa429a421c22179ec6d60422a6eae673e6b5c8cc049a41d5751ab235
194 Risk Score

Malware Insights

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

The PDF document contains a lure related to 'arm exercises with resistance band pdf' but redirects to a malicious link farm. The ML classifier strongly indicates maliciousness, and the presence of numerous external PDF links suggests a link farm or SEO manipulation tactic. No scripts were extracted, but the embedded URLs are the primary indicators of 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.cc/pify?keyword=arm+exercises+with+resistance+band+pdf In PDF document text
    • http://files.asbpw.com/uploads/1/3/0/7/130738792/kizaz.pdfIn PDF document text
    • http://files.thedailydiplomat.com/uploads/1/3/2/6/132695698/zolobu.pdfIn PDF document text
    • http://files.cupe960.org/uploads/1/3/1/1/131163761/227619.pdfIn PDF document text
    • http://files.elevatechurchli.org/uploads/1/3/1/8/131871477/4562609.pdfIn PDF document text
    • http://files.onceuponarockvermont.com/uploads/1/3/0/8/130813524/xiweviwa.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/1/0430/1006/4537/files/99799830677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6710/3645/files/92188731246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3448/4648/files/novuwujenoraxoweguvibasev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1451/1001/files/15342384310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9411/4465/files/22654855680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5597/1480/files/kakosezegelipef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7339/5106/files/83032946735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42539854631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6368/0929/files/6596676406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9320/5916/files/77083425945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9177/8965/files/tinukilug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8323/5489/files/39353960740.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_off000086c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86C5 5328 bytes
SHA-256: 3243809887627a79f4b83a221b3a0884bb6269f993a6e5629d991dbe3be765b7
font_01_sfnt_off000098bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98BC 10320 bytes
SHA-256: c39a91fc519eff3656f29dcf4e3be6b7b79430959a20646da40c9c0670773591

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