Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f94e4fa31f7f4f4…

MALICIOUS

PDF

52.7 KB Created: 2020-08-08 01:22:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aa3658b2085aa871bcd0e4e5fff9eeba SHA-1: b5338568e308c469530ad50364b4c024cdc50706 SHA-256: 2f94e4fa31f7f4f4b17650ce315266c8b1ced4bbc9686246584e187788f63c90
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL, 'https://ttraff.cc/pify?keyword=plastic+deformation+of+metals+pdf', is designed to lure users into clicking it. The document body, though heavily obfuscated, contains this URL and other links, suggesting a social engineering attempt to drive traffic to malicious infrastructure. No scripts were extracted, but the PDF structure and link farm indicate a delivery mechanism for further compromise.

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=plastic+deformation+of+metals+pdf In PDF document text
    • http://dibudil.genelynjayephotography.com/uploads/1/3/2/8/132815002/pelerilugudo_pumidiludab.pdfIn PDF document text
    • http://files.deneiseself.com/uploads/1/3/1/3/131380305/zajobesanene_fejotuzu_vokad.pdfIn PDF document text
    • http://files.equivistacoaching.com/uploads/1/3/0/7/130739368/ninitejamapefabatota.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/1/0434/4505/9749/files/86659706491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/9456/1188/files/balochistan_textbook_board_quetta_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6728/5410/files/darufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8693/0329/files/laxukesarobivuwawolefova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53567737566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6464/7077/files/27149919748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0985/8984/files/71947108692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0722/1658/files/64285596712.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1057/2967/files/64668842763.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 5

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_off00007152.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7152 5300 bytes
SHA-256: 77c9cfe22c54edffca379c30a9669d365a3b422db0503f43cc9aa3f5ad67b14d
font_01_sfnt_off00008345.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8345 14684 bytes
SHA-256: a414d8eb36d5a8e7a809565c22803ab019bd60dce5be1458cacbd31585d455e3
font_02_sfnt_off0000b162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB162 16088 bytes
SHA-256: 6927cb6d089225922097feb36f218f290667caa55ca1624a783867532cb920dd

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