Malicious PDF — malware analysis report

Static analysis result for SHA-256 a584aec48f79af63…

MALICIOUS

PDF

50.8 KB Created: 2020-08-02 06:24:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ca06987e2dd72749466161c483772c7b SHA-1: 9f3cbaa09bec0a0b67479a5c8dfd903802a8c805 SHA-256: a584aec48f79af63acda8099263825045ec3145498d0709b6e61b09dfd2c34b9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link that redirects to a malicious URL, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body also contains the same URL, suggesting a lure to trick the user into clicking it. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many of which point to Shopify, likely for obfuscation. No scripts were extracted from this sample.

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=sublime+text+4+release+date In PDF document text
    • http://files.snapeprimaryschool.com/uploads/1/3/2/6/132695734/3944a80.pdfIn PDF document text
    • http://files.shuckinfun.com/uploads/1/3/2/8/132814387/wawipib_mugonatezebekax_vidanebaz_tagasawasifeji.pdfIn PDF document text
    • http://files.mikaylamac.com/uploads/1/3/1/0/131069992/nogek_fokozukunajeb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4501/1112/files/jamawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2934/9030/files/60462474713.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4463/3756/files/kagerokegilutafepew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/50602273111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9951/2231/files/sunovavulidukoxopirowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4441/3350/files/sopiluxun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7046/3912/files/73921470439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/kebele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6775/3116/files/dutinuvilizigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7709/8913/files/simple_file_upload.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/89535049941.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 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ab1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AB1 5036 bytes
SHA-256: d9c3aa0c0069a99cc389d9d0e357c7ee2d86fa12f0bc21ecc7054be86df65732
font_01_sfnt_off00008bcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BCC 10676 bytes
SHA-256: f91fe965edc18c38903217b44db8c1aa501dc1218f780bce46ddc06aa468ec87
font_02_sfnt_off0000b015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB015 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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