Malicious PDF — malware analysis report

Static analysis result for SHA-256 4799bd3172fdbe43…

MALICIOUS

PDF

54.3 KB Created: 2020-08-21 20:27:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f02def2fe58278c3df3a714372c677f7 SHA-1: 44fea7e77381d4df1f7f611d2be1f9dbb306eda0 SHA-256: 4799bd3172fdbe43105fb885901e20c83f46ecebeb3e57ba9262b4333a0275b6
194 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and contains multiple embedded URLs. One URL, 'https://ttraff.ru/pify?keyword=collar+x+malice+mineo+guide', is identified as a known malicious redirector. The document also exhibits characteristics of a PDF link farm, with numerous links pointing to external resources, many of which are hosted on Shopify. The presence of a malicious redirector suggests an attempt to lure users to a compromised or malicious site.

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.ru/pify?keyword=collar+x+malice+mineo+guide In PDF document text
    • http://wiwovag.ceibalogic.com/uploads/1/3/0/8/130873952/saxifuxop_bariwabowe.pdfIn PDF document text
    • http://files.biglevel.net/uploads/1/3/0/7/130739444/bea2f4f3cdc0c.pdfIn PDF document text
    • http://funini.mikehallviolin.com/uploads/1/3/1/3/131380213/gadiroledexa.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/1/0436/6227/8809/files/81037932229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4501/1112/files/86942982187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6980/9564/files/consolidating_financial_reports.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7741/0720/files/30869916000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6396/7906/files/ratejekobivajij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1187/3688/files/bexiritilozazemumurufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9833/9496/files/69845261404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2423/5170/files/wexudiseretodige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/51579585792.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000665e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x665E 4976 bytes
SHA-256: 73ca1a60f236fb092a6ee6f270e8e812dda03b370f9e60a0991413d80f848e2b
font_01_sfnt_off0000771e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x771E 2448 bytes
SHA-256: fb18ddbd6cee2aaf7dfd9b1844115e93291871ef168f125cd05d4c99464513b5
font_02_sfnt_off000081c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81C9 10428 bytes
SHA-256: e01e2b13c6a98e42b053165b455cb396130adfb4f0d26503272120899d0c6b5f
font_03_sfnt_off0000a5ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5AB 16608 bytes
SHA-256: f1be8606fcb4e7a7d1aaf1a004a0bba496b3b01c8118125808daf5ecea15683f
font_04_sfnt_off0000bc0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC0E 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71