Malicious PDF — malware analysis report

Static analysis result for SHA-256 14a75592bf08df05…

MALICIOUS

PDF

59.6 KB Created: 2020-08-05 16:44:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0d6e04e1238dbca61e4fd57ff38ff63d SHA-1: 3b4c38f53da06de0da16e8f460e302476fe005a2 SHA-256: 14a75592bf08df0549beeb4c394461f59ba9a40462f3e16640aa40e3bebd2552
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are part of an SEO link farm designed to redirect users. The primary redirector URL, "https://ttraff.cc/pify?keyword=block+matrix+inverse+pdf", is flagged as malicious. This suggests a phishing or scam campaign aiming to drive traffic to malicious infrastructure. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=block+matrix+inverse+pdf In PDF document text
    • http://files.seymourpossibilities.org/uploads/1/3/1/3/131381605/6085910.pdfIn PDF document text
    • http://files.connectexperiencewrite.com/uploads/1/3/0/9/130969206/8267770.pdfIn PDF document text
    • http://files.cookwithjames.com/uploads/1/3/2/3/132303010/sogudakinilolar-sulisisetujif-betif-nurojezazapafi.pdfIn PDF document text
    • http://files.activesundays.org/uploads/1/3/1/8/131860204/202eb732d5777f.pdfIn PDF document text
    • http://files.methowvalleypsfa.org/uploads/1/3/1/0/131070911/zekewebo.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/1/0429/8804/4442/files/lebawekosarabuwopali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0436/2906/files/muxorabivafegoxaxijodek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8346/3832/files/79419307585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0665/5642/files/89402931475.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7410/1149/files/pakologodeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3269/9295/files/attitude_scale_questionnaire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zeranosorijajigafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4711/5157/files/22497598179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0335/5034/files/42nd_amendment_act.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0407/3880/files/83962633208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5004/9448/files/78436439843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/bank_name_full_form_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5896/1315/files/23961346043.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000079f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79F7 5332 bytes
SHA-256: 477301f9977f753cc35e5ef55417933f6270d82c963a1b32c9f48372daed4145
font_01_sfnt_off00008bfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BFC 15604 bytes
SHA-256: 6215a9bccf5f35b75039cf82a91ffaa093568ed1feb8fe95c7b4f323153cdc0e
font_02_sfnt_off0000bc5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC5B 16556 bytes
SHA-256: 81414644a2b04da35792b5ed096d60653fb9978e29cf8e765c557d33b2308b56
font_03_sfnt_off0000d2e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2E0 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71