Malicious PDF — malware analysis report

Static analysis result for SHA-256 792366c9523ece0d…

MALICIOUS

PDF

55.5 KB Created: 2020-08-24 10:13:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b00fcb85fe65dc1c996ba6939a4b2f22 SHA-1: 94c0f6175eb740c8be4c292eef266087cf60eb1f SHA-256: 792366c9523ece0d779f910cef0382dc7eeae3715a82e404514b64ca95603ce6
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that is flagged as malicious. The document body text, though partially corrupted, includes the same lure text and URLs found in the heuristics, suggesting an attempt to drive traffic to malicious infrastructure. The presence of a large number of PDF links, many hosted on Shopify, indicates a link farm SEO tactic to obscure the malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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=mi+home+camera+360+manual In PDF document text
    • http://togipe.devitthouse.com/uploads/1/3/1/1/131163658/relir_japexifelasusa_julowoxuzegu_sikuweva.pdfIn PDF document text
    • http://files.scfsoftballclub.com/uploads/1/3/1/4/131454567/237483.pdfIn PDF document text
    • http://jujagoji.evewelch.com/uploads/1/3/1/4/131438437/kotaroxepe-tedejat.pdfIn PDF document text
    • http://jegarakob.dsmtoolworks.com/uploads/1/3/1/4/131453674/fugevujajabi-navogopa-jevosebutof.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/1/0432/1725/6603/files/nojirepoxotilirako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/6680/3622/files/saa_poster_presentation_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1877/2903/files/c_est_ou_il_est.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0922/0501/files/baroque_architecture_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6090/4615/files/14832609698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2884/8538/files/46657755240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2895/3763/files/calendrier_2020_tunisie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7932/6103/files/nascar_games_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9540/7269/files/veximajowogema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2587/2549/files/42320457651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemulubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2748/1255/files/77398972570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6102/6719/files/xexuzitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8528/2980/files/24081327505.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_off00008eb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EB2 5128 bytes
SHA-256: 9b23aa4ff6ff12e9d330c835d546785dbccbae344bf4be17569473b94d3fa678
font_01_sfnt_off00009fdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FDC 10192 bytes
SHA-256: e88acf73b3a477b2e46bbd1513a4d9641ba4f673eca8a84e3264f6e66daa3c2f
font_02_sfnt_off0000c2b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2B7 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3