Malicious PDF — malware analysis report

Static analysis result for SHA-256 58f37ef2e8b8db83…

MALICIOUS

PDF

70.8 KB Created: 2020-08-18 22:29:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e61f374ccde57ae8a6431d05bedd8a2e SHA-1: 9adcfbd8e3c43d8b41c4547c488b9e2c8122efcf SHA-256: 58f37ef2e8b8db839c69874f0144e992782f360a11cf9e4a42330469ec96315b
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=anglo+saxon+riddles+answers'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links to other PDF files, many hosted on Shopify. The document body, though heavily obfuscated, also contains the malicious URL. The primary intent appears to be redirecting users to malicious infrastructure under the guise of providing answers to riddles.

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=anglo+saxon+riddles+answers In PDF document text
    • http://sejifakel.kimmcdonnel.com/uploads/1/3/1/4/131456363/4310575.pdfIn PDF document text
    • http://voguze.piperdavisbaseball.org/uploads/1/3/2/6/132682467/4786081.pdfIn PDF document text
    • http://pozazok.nicoledporter.com/uploads/1/3/1/6/131606603/xadanitob-vesex-vavome-nodopawapokaj.pdfIn PDF document text
    • http://files.hollybeckley.com/uploads/1/3/1/4/131453998/9261414.pdfIn PDF document text
    • http://filifupe.managementcapability.net/uploads/1/3/2/6/132681464/jegikisisal.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/1/0428/4029/3543/files/c_programming_book_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/6447/2231/files/internship_application_letter_for_civil_engineering_students.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3606/5438/files/resutososozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1098/2041/files/10152025744.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7175/6698/files/watch_inuyasha_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7465/0261/files/pakugipadujunabazufim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6656/2462/files/13987406108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4615/1078/files/wogodem.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: hollybeckley.com 3 samples

Related samples 1

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_off0000cd7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD7D 5144 bytes
SHA-256: 6ff6673d1f881e1c1c388af537c670a9c945a7fe2a2e2d13f952500b695bcc15
font_01_sfnt_off0000df17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF17 15160 bytes
SHA-256: 5d22a6f1f538b34656e94361818df781b5165c16b1d51bd5a3bb0767552f8630

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