Malicious PDF — malware analysis report

Static analysis result for SHA-256 6796dafd53a4f053…

MALICIOUS

PDF

89.1 KB Created: 2020-08-26 09:40:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2a42f52622c24b88f0e6f67bbaf031a5 SHA-1: cb1deef4a31b8b025f4b9457f24bda8683bdcff7 SHA-256: 6796dafd53a4f0534e4e2b9b87d3c10e1baaef2026ff42dd272a3305fd1c2887
194 Risk Score

Malware Insights

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

The PDF contains numerous links to a redirector service, indicating a phishing or scam attempt. The primary redirector URL is associated with malicious activity. The document body, though heavily obfuscated, contains a reference to the same redirector URL, suggesting it's the intended destination for users lured by the document's content. The presence of many external links points to a link farm or SEO manipulation tactic.

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=roguelike+adventures+and+dungeons+mi In PDF document text
    • http://files.namtokkitchen.com/uploads/1/3/1/3/131398246/4e8cbf2c30bf.pdfIn PDF document text
    • http://files.marapillinger.com/uploads/1/3/1/4/131407369/kegodifev.pdfIn PDF document text
    • http://files.dreamincolorllc.com/uploads/1/3/1/4/131438899/wixizebato_dafomuno_simisevona.pdfIn PDF document text
    • http://sunoguje.mhfirstresponse.org/uploads/1/3/2/8/132814930/123f3f15a8589a5.pdfIn PDF document text
    • http://files.wisedemocracy.org/uploads/1/3/2/3/132302894/a9f04f9f1.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/1/0444/7754/6663/files/ayyubid_dynasty.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4375/7985/files/xutumuvutolijapiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5815/9006/files/wibazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6049/4485/files/wordly_wise_book_9_lesson_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3287/7976/files/bupigunetewalenuruxexaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1281/5010/files/call_of_duty_mobile_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1970/6269/files/12365562947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21533622499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0056/9766/files/77636714446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3046/3135/files/rimazumarubobil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3670/3900/files/the_incredible_hulk_torrents.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_off0000fb97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB97 3592 bytes
SHA-256: b382029a04af8c5d5cabb0c485cde9654c8535d85aa6ee02633ff878b0f5c670
font_01_sfnt_off0001084e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1084E 5276 bytes
SHA-256: 60b465d01b0b463339c2a058cdda164f880f36bc3600865b986f0e15165670c6
font_02_sfnt_off00011a31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A31 11160 bytes
SHA-256: 25001b5299f9fab1198ea94655ebaf6c07185aea22ad3dac3deecb578faa7f34
font_03_sfnt_off0001403a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1403A 16400 bytes
SHA-256: 3872e271c446214769d2c91b6f0b15ae860547e424e88ec81c2b248fc6e3c633