Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f84eff2c236cf06…

MALICIOUS

PDF

44.6 KB Created: 2020-08-18 14:21:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: adacf5c9090d337c516f4f0fa7db6266 SHA-1: 268daf420e1f3aa6922b07f758f308b5ffcef746 SHA-256: 3f84eff2c236cf06f7e67f1772d6cf2e2d6194069bb11593363850aa7f70387c
234 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a link farm hosted on cdn.shopify.com, suggesting an attempt to manipulate search engine results. One critical heuristic indicates a direct link to a known malicious redirector, ttraff.cc, which is used to serve the 'battlefield bad company 2 apk data mod' lure. The document body, though heavily obfuscated, contains the same lure and the malicious redirector URL. The presence of a 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests that the user might be prompted for a password, likely to bypass security scanning for an archive or attachment, further indicating a malicious intent to deliver a payload.

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.
  • 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
  • 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=battlefield+bad+company+2+apk+data+mod In PDF document text
    • http://files.jenniferfolsom.net/uploads/1/3/2/6/132695325/e4689ae.pdfIn PDF document text
    • http://lewemavug.kingsquidjigs.com/uploads/1/3/2/6/132682989/wubalikuzeragexuz.pdfIn PDF document text
    • http://files.winchmorehillbaptistchurch.org.uk/uploads/1/3/2/6/132683334/5089125.pdfIn PDF document text
    • http://pegosedof.finleydesignart.com/uploads/1/3/1/6/131606183/3097938.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/1/0432/1135/8369/files/look_back_in_anger_john_osborne_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7373/1741/files/37017108376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/36635273428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/truck_transporter_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6231/2616/files/91638599089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9902/9655/files/tilimagubokunewufovudusum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2794/5879/files/aromatherapy_essential_oil_recipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5725/8395/files/air_cargo_manifest_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6145/0654/files/pdf_to_excel_converter_software_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3957/1611/files/52271497003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6635/2028/files/49951486223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6676/1120/files/52453900819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/59782367098.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 2

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59B5 5512 bytes
SHA-256: 3374cae535d80432447f0f7b74f92ee7102a1fcfd203153dde5db5ee330fb751
font_01_sfnt_off00006c6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C6B 10144 bytes
SHA-256: 933487f2cc7f0f6039e5afd42ef8d92983bfb5d38d8919525ff4e6bfc0425602
font_02_sfnt_off00008f73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F73 16172 bytes
SHA-256: eccfb05c333878baa727456f71c9abe47543d8e4c26404896aa09cdf3457333c

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