Malicious PDF — malware analysis report

Static analysis result for SHA-256 670f4400dfb9f0d8…

MALICIOUS

PDF

45.8 KB Created: 2020-08-16 11:50:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e957f460ed8d21f658cf0f3c7f7bfa16 SHA-1: 4d6d7bb4dfa3858249fc488e030b671db6d3b945 SHA-256: 670f4400dfb9f0d85eb3d75ec7be3eedaa909c7403b78e8f316c5cb0e0d9570f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to a redirector service, which in turn points to various Shopify-hosted PDF files. The primary redirector URL, 'https://ttraff.ru/pify?keyword=apa+standard+of+perfection+pdf', is flagged as malicious. This indicates a phishing or scam attempt using a link farm to distribute malicious content, likely to trick users into downloading further malware or providing sensitive information.

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.ru/pify?keyword=apa+standard+of+perfection+pdf In PDF document text
    • http://tegipis.surfacetoairsystem.com/uploads/1/3/1/8/131856394/e34016ff71.pdfIn PDF document text
    • http://files.illuminatethejourney.com/uploads/1/3/0/7/130738917/xenakodedosifow.pdfIn PDF document text
    • http://files.visaconnection-philippines.com/uploads/1/3/2/6/132695280/7ad51fa803.pdfIn PDF document text
    • http://files.graffitiwgratitude.com/uploads/1/3/0/7/130738814/808e7b1556b9ad.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/1/0433/7090/5750/files/70764724934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4232/4125/files/96477246477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6728/5410/files/rijudikopiwonuguzeri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0364/2007/files/kashimashi_girl_meets_girl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fonufefijosogigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7827/1641/files/sedonenuxag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4818/9603/files/lirik_qasidah_muhammadiyah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2916/2152/files/71594795222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5298/8566/files/gelamolafusozufuxesam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9021/5073/files/69244948681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2087/5938/files/56630948970.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000692e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x692E 4892 bytes
SHA-256: 7e44d3c17595ca8d8131beb8805deb8c19a533485c727bab9ed385f865c555f0
font_01_sfnt_off000079ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79CE 10008 bytes
SHA-256: 1183a7a916210a7b11ab998952f8cb2d842c8e4e87ff1954d96f0d2c63a81f7b
font_02_sfnt_off00009c1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C1C 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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