Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b37e96597c8fbaf…

MALICIOUS

PDF

38.4 KB Created: 2020-08-02 21:46:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3d7bcbcf2c543bdd34b67160126dc5ef SHA-1: 2c1e4394d239f8f4a0acfe23adf88ba5f1a298ca SHA-256: 7b37e96597c8fbaf974d76d559229486662332f747358b7a921d453ded29020d
194 Risk Score

Malware Insights

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

The PDF contains numerous links to redirector infrastructure, specifically identified as a malicious redirector at 'ttraff.com'. The document body and embedded links attempt to disguise this malicious activity by referencing popular media, suggesting a phishing or malware distribution lure. The ML classifier strongly indicated maliciousness, and the presence of multiple SEO-linked PDFs further supports a malicious intent to drive traffic to potentially harmful sites.

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.com/pify?keyword=mama+s+family+full+episodes In PDF document text
    • http://gurera.ricofarmbureau.org/uploads/1/3/1/6/131607712/bc2794876f3e.pdfIn PDF document text
    • http://files.jaymcclellan.com/uploads/1/3/2/6/132683137/lenarusofujo.pdfIn PDF document text
    • http://files.etotdelaware.net/uploads/1/3/0/7/130739769/zarofumefukivuz_zorad_biwapazax.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/1/0435/7446/0579/files/genodakininebebamito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3086/1208/files/press_sun_bulletin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4881/0149/files/levisamokidokakotok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8544/6824/files/jomowawisexuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7930/1275/files/menexizanufoveb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7680/3990/files/14329504828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1264/4251/files/nasemudokupewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3100/1238/files/jigudogijezurexeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9105/9097/files/julipavosuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3483/7149/files/cash_drawer_count_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5216/3482/files/8463186220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9544/8997/files/fewowive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9862/8501/files/devix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5560/4134/files/53229957639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5461/2123/files/wutasawijugebopasaditu.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_off00004956.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4956 4892 bytes
SHA-256: e302657d13a02dbdebd21f9c80b386e3a3101ebc027be45878182edefab8ece1
font_01_sfnt_off00005a0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A0A 9936 bytes
SHA-256: 538d3ee4cb858efe2f9d328cfed8596b8b0d28b5e58cf7f8d48bee550c112457
font_02_sfnt_off00007c3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C3C 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2