Malicious PDF — malware analysis report

Static analysis result for SHA-256 7313091cade2006b…

MALICIOUS

PDF

66.6 KB Created: 2020-08-17 16:05:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8ca02799cfdd1777b123f5eed67762a2 SHA-1: 7164158cf7403dbae2f8f40b82fb48f5f01e7a88 SHA-256: 7313091cade2006b6ce7635cf40721330150370a378e6a396157a693c251080d
194 Risk Score

Malware Insights

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

The PDF contains embedded links and text that mimic search results, specifically for 'bruno mars grenade video mp4', directing users to a malicious redirector. The presence of numerous SEO-linked PDFs and a critical redirector link firing strongly suggests a phishing or malware distribution attempt. 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=bruno+mars+grenade+video++mp4 In PDF document text
    • http://nulebixig.eugeneholisticmedicine.com/uploads/1/3/1/4/131438556/1f57170cbece.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/mefopevepal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0538/6647/files/58504077136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7187/1912/files/fewegovejokegavazofaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7272/4885/files/16876669259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5740/4309/files/58934766667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3751/6191/files/maplestory_2_client.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1265/2194/files/fozede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8799/5814/files/rowoxomagivorijum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6117/7507/files/jpg_to_online2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8368/5270/files/bba_syllabus_ipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9254/8515/files/microelectronic_sedra_smith.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4498/6280/files/verbal_ability_aptitude_test.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_off000067fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67FB 21172 bytes
SHA-256: 104cb1cc1b3fb0f450e1822a1f29f1feaea41a56c64fa37ae3dfd2b517597308
font_01_sfnt_off0000aaa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAA4 5444 bytes
SHA-256: 142bb8dbddb281bcd8f8df655e4e36e1ec7056cb1c457b8f0d77bd2d14f3f78b
font_02_sfnt_off0000bd17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD17 13424 bytes
SHA-256: 1309dea92864418b77af6e6b85517229926c6c9beba0a9b5e5452b90929ba3dc
font_03_sfnt_off0000e75b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE75B 16204 bytes
SHA-256: 73bb1f519e29941fc98367ae33a8b679223d41029fbf73fb5c585da9ec8c2502

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