Malicious PDF — malware analysis report

Static analysis result for SHA-256 8840f03e757499c5…

MALICIOUS

PDF

121.9 KB Created: 2020-08-24 11:32:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ef3b0906ee7aab02a1d03ce1899b223 SHA-1: eedd11bbce3739cc06bf7b04c081e2b67cc8537e SHA-256: 8840f03e757499c53b19755b615e7068213d5b33160414772cab55593188e820
274 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File T1059.007 JavaScript

The PDF contains numerous links to external PDFs, many of which are hosted on Shopify, suggesting a link farm or SEO manipulation tactic. One critical heuristic indicates a redirector link to 'ttraff.com', which is known malicious infrastructure. The document also employs a 'browser installation lure' and mentions a password for an archive, common social engineering tactics to trick users into executing malicious payloads. While no scripts were directly extracted, the presence of malicious redirectors and the lure strongly indicate an intent to deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=chromium+64+bit+windows In PDF document text
    • http://mawavig.lashiousbeautysalon.co.uk/uploads/1/3/1/3/131382133/383da7.pdfIn PDF document text
    • http://files.zainabhardware.com/uploads/1/3/0/7/130775936/puvonu.pdfIn PDF document text
    • http://xazapenop.scfriends.org/uploads/1/3/1/0/131070998/caf7e3a2.pdfIn PDF document text
    • http://wasen.graysandbluesofmontreal.com/uploads/1/3/0/7/130776485/tekafewurujana.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/1/0432/5752/8480/files/confluence_wiki_faq_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8270/3257/files/77195482858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/8091/3830/files/mt_snow_snow_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9636/7511/files/porut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6700/7386/files/six_sigma_black_belt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7194/7430/files/xidawugevimalig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/77527649945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1804/4070/files/ketif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8954/3836/files/subjonctif_ccdmd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2230/2888/files/78202147975.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000176e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x176E3 5084 bytes
SHA-256: 2b215d67aa84c6eb48a810c295d97948de92a9be7b5e720477b7f4e76e76d854
font_01_sfnt_off00018813.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18813 14724 bytes
SHA-256: 2d66601b17117ca42b13f8c198d481d46158a007665965648675b5327bacc635
font_02_sfnt_off0001b6fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B6FC 16312 bytes
SHA-256: aad9bc0f36eadc3314e08670b59090120051e308b357201f134af3d0b781b2b0
font_03_sfnt_off0001cc88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CC88 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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