Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f4dc6b35f2ea564…

MALICIOUS

PDF

44.2 KB Created: 2020-07-29 07:34:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1421dd17635b98fb3f702b4759992886 SHA-1: aeb2791d11cfc5981facd969757572156fb1d292 SHA-256: 3f4dc6b35f2ea5649efeae883f95657783eccae873ed63de6595b738cc4be99b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF contains multiple embedded links, with one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that the link 'https://ttraff.com/pify?keyword=titanic+song+flute+sheet' leads to known malicious infrastructure. Additionally, the 'PDF_SEO_LINK_FARM' heuristic suggests a large number of external PDF links, with 'https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94192334972.pdf' being the first identified. The ML classifier also strongly flagged this PDF as malicious.

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.com/pify?keyword=titanic+song+flute+sheet In PDF document text
    • http://files.fr.pharmaciecocagne.ca/uploads/1/3/0/7/130738681/9028288.pdfIn PDF document text
    • http://files.mngophercockshutt.com/uploads/1/3/1/4/131407061/23055792c3.pdfIn PDF document text
    • http://files.filmingfunds.com/uploads/1/3/0/7/130775980/lexokolej.pdfIn PDF document text
    • http://files.voxfromabox.com/uploads/1/3/1/0/131070912/edae3e9.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/1/0433/0687/7080/files/94192334972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9626/7165/files/jixixisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3377/8597/files/20210892545.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7822/1973/files/50486236162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3006/8894/files/zarozunos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4841/8971/files/metexowituname.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0179/1132/files/46060817039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0300/9430/files/78852394114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4717/4812/files/kunemidurapud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1410/2941/files/zoguzoverozetafoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9963/4330/files/suxinabijililuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3237/1622/files/60491363699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0510/0707/files/moxudevof.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F97 4880 bytes
SHA-256: a0cecbc87ee7ce7ab6475680d2ed5f5de17a257b5e1ee4071359927ea1ae391f
font_01_sfnt_off00008024.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8024 10500 bytes
SHA-256: 10b87d293c4edff7f0ed49b97e0ec15bf272b79d6668e4430fcef691e7abf063