Malicious PDF — malware analysis report

Static analysis result for SHA-256 93cba12cd9e5f927…

MALICIOUS

PDF

50.5 KB Created: 2020-07-30 08:21:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 99ccad1f3281f8b981aafa4fb26d85df SHA-1: 79394ce45e03275ec80a9f0cfbfa75895c04dfc9 SHA-256: 93cba12cd9e5f927c1c94acd0f7e827652d7a43d592355b7f719bc4274262d49
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, pointing to `https://ttraff.cc/pify?keyword=bharti+axa+elite+advantage+plan+brochure+pdf`. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs, many hosted on `cdn.shopify.com`. The document body, though heavily obfuscated, contains text related to a financial plan, suggesting a social engineering lure. The ML classifier strongly indicates maliciousness.

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=bharti+axa+elite+advantage+plan+brochure+pdf In PDF document text
    • http://files.outandaboutwithmskala.com/uploads/1/3/1/3/131398335/kixapuvan.pdfIn PDF document text
    • http://files.theatrere.co.uk/uploads/1/3/0/7/130740483/fovaximu.pdfIn PDF document text
    • http://files.nataliedownes.com/uploads/1/3/1/3/131380485/0ed4263c1e33a.pdfIn PDF document text
    • http://files.ajitourservices.com/uploads/1/3/0/7/130776255/bcb8d4b16b9.pdfIn PDF document text
    • http://files.birthassistanteducation.com/uploads/1/3/2/3/132302963/e73df516.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/1/0427/9359/9132/files/22720262444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1298/7802/files/12637298410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9807/0426/files/vilukerodevotani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9665/4499/files/91370074708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6365/7119/files/22532343782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8631/5682/files/82215274126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2652/0986/files/babavab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5633/9871/files/xerujidifejenem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4541/2261/files/suketajiwir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7211/9193/files/ruxuwufotujix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0496/6565/files/lolumofanewalugopubobiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8878/2236/files/sudonurajewafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0450/9853/files/16882772848.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000085cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85CB 5436 bytes
SHA-256: 93424e0b96282d7a840c80869be7c2f39ad51721d7073ae2b7128d93f488f925
font_01_sfnt_off00009849.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9849 10508 bytes
SHA-256: 6b623b2c9e1295abb4dca6c1442f218e93057240eca4a21d8a456637deef3ef9