Malicious PDF — malware analysis report

Static analysis result for SHA-256 52a3e9fa3eb9e4ca…

MALICIOUS

PDF

45.0 KB Created: 2020-07-30 18:58:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 53cf3e8147803f569325ed712b90ca8a SHA-1: 46b413d9686bf1a787af5f9a8abbd11076e7d804 SHA-256: 52a3e9fa3eb9e4cacf28b0d5e0e258ae846b74bad6c4739a730f045e957f2cd3
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is further supported by the presence of a PDF link farm. The primary malicious URL identified is https://ttraff.cc/pify?keyword=ssc+chsl+result+2020+tier+1+pdf+download. While many other Shopify links were extracted, one is flagged as the start of the link farm. The document body appears to be obfuscated or corrupted, preventing a deeper analysis of its content.

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=ssc+chsl+result+2020+tier+1+pdf+download In PDF document text
    • http://files.milepost0creative.com/uploads/1/3/1/3/131380177/tevebi.pdfIn PDF document text
    • http://files.knuckleswhiterock.com/uploads/1/3/2/6/132695472/d6e1229b.pdfIn PDF document text
    • http://files.landofosllc.net/uploads/1/3/1/0/131071114/7151525.pdfIn PDF document text
    • http://files.mariaillustrations.com/uploads/1/3/2/6/132681931/86f4c9bb8.pdfIn PDF document text
    • http://files.pmehs.com/uploads/1/3/0/7/130776611/likuwor.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/1/0434/0737/6546/files/fukimoguju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78476378890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6213/2897/files/wodumarodikoziwuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2926/5574/files/xudedowijixajipumira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2512/9891/files/52089533561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8702/8641/files/9761140520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7207/5414/files/72565182589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9341/7366/files/xijirimeru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0704/9877/files/poxolik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2889/8211/files/9643235942.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70CC 5648 bytes
SHA-256: 92f7298751784c992e2ac0a130e0f133a35aec76bfb74e83b82fb549b088f0fb
font_01_sfnt_off0000840a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x840A 10276 bytes
SHA-256: fbb519cadd94a6a94a4b9f2111d6a0f736bedd6e69024691185c834c5f4f6135

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