Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff035f411a6d46e6…

MALICIOUS

PDF

43.0 KB Created: 2020-09-03 01:18:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0322e7b058d7c643e97b2ad6343686f6 SHA-1: 9350850ef67f4191f3e246d74823f4691a3c79b4 SHA-256: ff035f411a6d46e6c161efda06a5be53bd164c686265f96b18e9a96723ceca20
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, which is also present in the document body. The file also exhibits characteristics of a PDF link farm, with numerous embedded links pointing to external PDF documents hosted on Shopify. The primary malicious URL is ttraff.ru, which is likely used to redirect users to further malicious content. No scripts were extracted from this sample.

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/wix?keyword=circle+theorem+exam+questions+and+answers In 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/1/0467/5600/4003/files/china_e-_commerce_industry_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6463/1195/files/teviwalisoxojogonip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2808/5912/files/27289667998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sovir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/3544/4646/files/xobikotevatodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4959/1718/files/notification_badge_app_icon_android_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1645/2258/files/56678293973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0818/0895/files/jebuxobodugejuzurug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6453/8776/files/willmington_guide_to_the_bible.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9865/1289/files/vevepevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6660/5211/files/jilawijusen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4818/9595/files/shreemad_bhagvat_geeta_gujarati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4293/0842/files/61097810062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26443777516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/12385351601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7430/4662/files/tuwibapesutet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/8627/7784/files/38866431652.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CD8 5372 bytes
SHA-256: 4f4bf23a808bd6caef40c713c3ad14de2905451cef1a48ed69dcc61cefaa5363
font_01_sfnt_off00006eee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EEE 3128 bytes
SHA-256: 6967b163aab7518dc30e82ce99b84cd7f69d21f81cf4225d8f08db93334c72db
font_02_sfnt_off00007bb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB1 10180 bytes
SHA-256: d55a38832d41b4acb0b0ea2ab41a88103120af96227a3c7c46a365a0248d7fb3