Malicious PDF — malware analysis report

Static analysis result for SHA-256 52b5aaaca511d189…

MALICIOUS

PDF

53.2 KB Created: 2020-09-10 07:19:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a1d2acbcb0bf9c2da35a8e023e832bd0 SHA-1: e73b71307b5e45cd6b1a6220a8ec2335d5e86ed9 SHA-256: 52b5aaaca511d189591773f29a0c895f82402160160a9ea4c0ddabd4914908ae
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a game leveling guide. This suggests the document's primary purpose is to redirect users to malicious sites, likely for further exploitation or malware delivery.

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.club/pify?keyword=ragnarok+eternal+love+leveling+guide+spot In PDF document text
    • http://files.realmegaworldproperties.com/uploads/1/3/1/4/131437685/f25ac.pdfIn PDF document text
    • http://files.serverlyf.com/uploads/1/3/2/8/132816195/zepakeni.pdfIn PDF document text
    • http://files.salembasketballofficials.org/uploads/1/3/1/0/131071063/607ae1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/9a242c_980d66145f004c898e91f7f4f3b5680f.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_4e879196731f4fcd8f61cb0a8b758c74.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9c43ec_91c9e963e9644eecacc1c062935d974d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/762c1a_f24b85ecdbcf4af8ac1fb675e1f2276f.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9163/9974/files/teberesevojuzobunikomami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7433/0517/files/wolf_team_hack_2015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6081/3208/files/nuwerepowupid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8548/6485/files/adjectives_in_french.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8447/1719/files/meme_faces_text.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4275/7013/files/gobarudunipaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9864/0288/files/20881986082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/6816/1953/files/fijitowisupirezoxuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6187/0741/files/sinad.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 4

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_off00008710.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8710 5256 bytes
SHA-256: ae4fb6a05e5241549439f6c7ff9b74e643441121d45299c9cccc1f4662d2b8fa
font_01_sfnt_off00009913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9913 15144 bytes
SHA-256: 5b42962cc18f04ef0d2bd9b2661ec586750459786260927756e17786ed55a1d9

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