Malicious PDF — malware analysis report

Static analysis result for SHA-256 def4e1e121614100…

MALICIOUS

PDF

41.0 KB Created: 2020-08-16 10:52:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 258fa96a77c04e342f71457e222ee597 SHA-1: 241c414a7a97d990f6bf804757e5449fdf1c645a SHA-256: def4e1e12161410080e7d87c837f81bca85583b30a9f5e01ee6b6458d88727af
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of links to external PDFs, many hosted on Shopify, likely as a link farm for SEO poisoning. One of the embedded URLs, 'https://ttraff.cc/pify?keyword=android+game+controller+setup', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL and appears to be a lure for users seeking setup instructions. The ML classifier strongly indicates 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=android+game+controller+setup In PDF document text
    • http://files.cageymoon.com/uploads/1/3/1/3/131380177/160989.pdfIn PDF document text
    • http://files.westernheartsracing.com/uploads/1/3/2/7/132710772/kukudukegasimuralo.pdfIn PDF document text
    • http://files.coffeeiniceland.com/uploads/1/3/0/7/130775341/pifinatiw_zetotop_kodagizaxe.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/1/0438/3100/1250/files/ontario_air_brake_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8866/7033/files/tikudoxekevenuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7920/5031/files/tunitaniderevinovatazoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7725/4814/files/xiweselipijisewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78539107281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/pifixiritafov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4423/1575/files/82045356259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2226/1143/files/87381612764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5934/7618/files/39639579903.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_off00006269.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6269 5380 bytes
SHA-256: 59215143705b0c7a1eaf311ab3be5bc51883e464cca0ffc106cb5f445e1facd7
font_01_sfnt_off00007499.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7499 10212 bytes
SHA-256: 7f57bffd61b39b3b9aa53ed7ef660b45ef153e3e60f80da595bb8def9e14dfc7

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