Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5fcba1303c335e2…

MALICIOUS

PDF

42.2 KB Created: 2020-08-02 02:04:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 39625678b1339fb2dccc605157b15288 SHA-1: 48dfc5cb86b5032f2b01c58e2631e3faca4abdea SHA-256: e5fcba1303c335e2032599909c30887f93f6dc692f933962ed0c1e4e1d226975
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Marriott employee handbook pdf' and the malicious URL, suggesting a phishing or social engineering lure. The ML classifier also 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.cc/pify?keyword=marriott+employee+handbook+pdf In PDF document text
    • http://files.brockportmall.com/uploads/1/3/0/9/130968956/df6e43fa3f5efd4.pdfIn PDF document text
    • http://files.observatoryproject.com/uploads/1/3/1/0/131071258/846212.pdfIn PDF document text
    • http://files.aldabragallery.com/uploads/1/3/1/4/131452800/vebobi-gigobu-fekuguwunox.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/1/0434/0498/4483/files/larulapizixujegikedam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6955/2293/files/zefug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8733/0464/files/gubuzavanika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7247/0686/files/panemexeporifowazetanirax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2376/0536/files/89921680380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5081/8969/files/xizolufagederuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4446/0951/files/34124669109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3702/2615/files/zanivujojegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8864/2197/files/54590415716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/nodakel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/gelonujagufobel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1718/2104/files/gesesilivijebururok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/clicker_heroes_save_game_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1124/3164/files/58603771693.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
🗂 Part of campaign: brockportmall.com 3 samples

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_off000065f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F7 5412 bytes
SHA-256: 008bf21b8c90a6098956d9814e4fc80ea1fe44f8e0e13b8346389eb496a2627a
font_01_sfnt_off00007845.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7845 10392 bytes
SHA-256: 4539811b9bfbdd8aafed99eab2f34372f031b4c60c4b445777bf6033a5d14bd8

Open this report in the interactive analyzer, or submit your own file for analysis.