Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb98bf043ae99e37…

MALICIOUS

PDF

55.7 KB Created: 2020-08-23 03:55:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a3d1b2a637344bf44b660f1f6bb3558f SHA-1: c7ceabeff7508301340c6e1d95ca7827ce64c751 SHA-256: eb98bf043ae99e373f573ad1589b2146387f72ea564deb14c0ef987e5fa9d2e6
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the primary malicious URL and references to other PDFs hosted on Shopify. The ML classifier strongly supports the malicious verdict. The primary malicious URL is https://ttraff.cc/pify?keyword=bangkok+michelin+guide+street+food.

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=bangkok+michelin+guide+street+food In PDF document text
    • http://files.primerestaurant.co.nz/uploads/1/3/2/6/132696112/zafavupijomof.pdfIn PDF document text
    • http://files.bostoncleaning.coop/uploads/1/3/1/8/131856516/jupupukovujivi-kofarezajewi.pdfIn PDF document text
    • http://files.paharidgefriesians.com/uploads/1/3/0/7/130739155/1290115.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/5330/1150/files/rukepazixazubixuxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6539/0757/files/63711004786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4263/3890/files/wrong_turn_2_movie_tamil_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6517/0334/files/neumonia_viral_en_pediatria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0930/9854/files/19621349879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7097/9237/files/18623090489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9212/4572/files/vaxolebuvalexokireluxusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4729/5898/files/57567701400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bumagigefabap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5165/4047/files/97243954382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2571/8678/files/free_online_template_for_resume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3410/8323/files/14462137811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1020/3545/files/91692373405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8402/5751/files/mba_admission_essay_samples.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000776e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x776E 5548 bytes
SHA-256: 0a78eb2de5dda4d91a9da47cf4d91044ea9cdc087d23042d062904b213fe6d95
font_01_sfnt_off00008a12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A12 12580 bytes
SHA-256: 5daba870d4e89d60f1ceefb1ddaa03dd63389a24519198e2b71f17ab86150e79
font_02_sfnt_off0000adbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADBD 10512 bytes
SHA-256: 34e28694bc6d2f9103b7ceca3817f80143d0e08f7f27daca04f0887919f75600