Malicious PDF — malware analysis report

Static analysis result for SHA-256 c49b70a0ab8e0a80…

MALICIOUS

PDF

58.1 KB Created: 2020-08-16 17:07:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5dcbc8c21658572a2ade999cab700a23 SHA-1: 7fc70b7d44a9b5b6108b071cb1fcd9a9df17db34 SHA-256: c49b70a0ab8e0a802478188569eea7c86fd917ba1ce1bd36b86cc96ba2781769
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=caricature+apps+free'. The document body, though heavily obfuscated, contains this URL and other links to Shopify, suggesting a link farm or redirection strategy. The primary intent appears to be directing users to malicious infrastructure under the guise of offering free applications.

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=caricature+apps+free In PDF document text
    • http://wuwejejo.hairbypearl.com/uploads/1/3/1/4/131483147/8430430.pdfIn PDF document text
    • http://files.myownmarketingcoach.com/uploads/1/3/0/8/130813489/4563845.pdfIn PDF document text
    • http://files.allaypdx.com/uploads/1/3/1/1/131163897/e210e073df28d.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/1/0431/3032/3101/files/ps_touch_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9883/2037/files/learners_license_questions_and_answers_south_africa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9054/2743/files/furezevexedujefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8996/1884/files/71588511517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4101/4438/files/11409161832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8003/1135/files/83966484490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5171/2666/files/rifedizemodututi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9191/0038/files/bless_the_broken_road_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7661/6353/files/xapen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4984/4890/files/18952711785.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 2

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_off00008bc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BC1 4880 bytes
SHA-256: 6cff7c96543157d8e7f11dab3c25688d96cfc4ef1de62600411233dd69358a07
font_01_sfnt_off00009c62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C62 5248 bytes
SHA-256: 2c860834b7602631a094026d319e090350bac4e0c5fa782e47e8de3b249b82ca
font_02_sfnt_off0000aada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAADA 15384 bytes
SHA-256: 16e7c7c9ff6de15be6e4c226a8ee1fb8b7030c52bf4c00368cfc2f6aae732bfc

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