Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5122b47d4d3beed…

MALICIOUS

PDF

47.6 KB Created: 2020-08-21 20:57:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 606c4897abf4c6602524039cc368d208 SHA-1: 63c29a349aa16fe5161b85abea384b3a36e42f98 SHA-256: b5122b47d4d3beed68714b83409af27260fdb08940bc139befc7baccb202b320
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=brutal+age+horde+invasion+mod'. This URL is embedded within the document body, suggesting a social engineering lure related to a game mod. The file also exhibits characteristics of a PDF link farm, with numerous embedded URLs, many of which are benign Shopify links, likely used to obscure the malicious redirector. The primary intent appears to be directing users to malicious infrastructure through a deceptive link.

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=brutal+age+horde+invasion+mod In PDF document text
    • http://files.ottawanavyleague.org/uploads/1/3/1/8/131856326/17e918.pdfIn PDF document text
    • http://files.heekyoung.com/uploads/1/3/0/7/130739500/nemenimudivovudedok.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/1/0434/8693/7248/files/76260776295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/67372082840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6006/0567/files/12951006224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2335/8358/files/merusejolewopesukure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0291/2158/files/rutofajirikedimatogej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5366/2887/files/bennett_springs_fly_fishing_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32829552166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5340/7646/files/xadawevef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3810/3962/files/31706789656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8950/2110/files/97024730594.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6390 5348 bytes
SHA-256: 1fefcd6209942230c22ddf24ede897d90e9be34ee8c0083252afee6752798ef9
font_01_sfnt_off00007595.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7595 11996 bytes
SHA-256: fce1bb7e8d93e61a58241af80c9940418f10599993b0c465050dc5567aaba011
font_02_sfnt_off00009ca1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CA1 16160 bytes
SHA-256: 9ffc405fbed68b1ed35cf25504b2a045b5802e2074cf99e6920a228075e829fc

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