Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f254b2192713f6c…

MALICIOUS

PDF

53.5 KB Created: 2020-07-30 10:14:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c956bb82eeee6c270b403ee961fb232a SHA-1: 4cc2e219b61850631e8d94581f310bce85392a75 SHA-256: 2f254b2192713f6c9e9e3f7df6ea5bcf2e84d76baeda001825e6bec416daa1ba
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector pointing to 'ttraff.cc'. Another critical heuristic indicates a PDF link farm, with many links hosted on cdn.shopify.com. The ML classifier strongly suggests maliciousness. The document body, though heavily obfuscated, contains text related to 'Amazon web services certification pdf', aligning with the lure.

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=amazon+web+services+certification+pdf In PDF document text
    • http://files.oak-steakhouse.com/uploads/1/3/2/6/132682882/sidigasodupuko.pdfIn PDF document text
    • http://files.mahasiddhasandmonks.com/uploads/1/3/0/7/130776590/jowataguj-fifinuwa-bejuso.pdfIn PDF document text
    • http://files.kathleenstuartart.com/uploads/1/3/1/3/131398385/e8df24da4fb981.pdfIn PDF document text
    • http://files.paoniacherrydays.com/uploads/1/3/1/3/131381607/suwerutofova.pdfIn PDF document text
    • http://files.fourseasonslocalmarket.com/uploads/1/3/0/9/130969448/zuzejumusel.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/1/0429/8558/6841/files/38666533790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7205/2643/files/lujijenelolobopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8762/5369/files/gipagofajolevopigola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/faxusumowavunisipor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/32213379430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0502/4168/files/24936194025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1241/5897/files/watafuzedamelonotipoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0057/8723/files/49547192259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/46083395810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9354/1535/files/77791525415.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_off000092ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92CE 5388 bytes
SHA-256: 6aa9eac280aea4e25e92b06def3a15eea9012b6000c9e621beefda10a501c78c
font_01_sfnt_off0000a514.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA514 10324 bytes
SHA-256: 2bbac72a1cafb137b44c4b3c56d8fa12a744a17bd6eda34d2febc8bcc7c557e6

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