Malicious PDF — malware analysis report

Static analysis result for SHA-256 12f6b1d783edeed7…

MALICIOUS

PDF

123.4 KB Created: 2020-08-11 14:08:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9f01fff7c1fb30dca1d0edec4199a165 SHA-1: 4dfb8cf4baecbb01b032dda077fbd7ba6f9b85bb SHA-256: 12f6b1d783edeed72078f19c1bfe5c635658bb53a379c7b9e65128a6f2a904d9
194 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.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be part of a phishing lure for 'Arabian nights pdf book'. The presence of many external links suggests an attempt to drive traffic to potentially malicious sites, likely for credential harvesting or malware distribution.

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=arabian+nights+pdf+book In PDF document text
    • http://files.sylviaeneriz.com/uploads/1/3/1/6/131637308/131248.pdfIn PDF document text
    • http://beleriza.settlersmuseum.com/uploads/1/3/1/3/131398455/c129685f7.pdfIn PDF document text
    • http://files.knockoutcakes.com/uploads/1/3/1/4/131453651/zedogudipifavisuwud.pdfIn PDF document text
    • http://files.parkplace-dublin.com/uploads/1/3/1/8/131858661/ee5820c821.pdfIn PDF document text
    • http://files.kaylaberghoff.com/uploads/1/3/0/7/130775768/3608372.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/1/0428/9835/8432/files/wizivudid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8658/5749/files/67375702162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4826/4089/files/89899697414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1261/8400/files/zewadududubukozos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13879903487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7994/9733/files/65712446907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5026/1915/files/82254250866.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/totexokujibubaduzideki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3798/2869/files/fixagapukigotoxeviwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4312/5405/files/intruders_tv_show.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0001b368.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1B368 25028 bytes
SHA-256: 9836701e093522e4e37f606c745482615594975a53def436d76203fcbed08b8b
font_00_sfnt_off00016eee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16EEE 5464 bytes
SHA-256: dd68e3fac869cf52c632d70c60f1ba95dbf38d16cc4d934e1da49e187b1825f2
font_01_sfnt_off0001816f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1816F 16396 bytes
SHA-256: bc5103246ec8e67c53634a4d5b78028de12f1cb6b062bb46aaa33448c01d0864