Malicious PDF — malware analysis report

Static analysis result for SHA-256 493b8383659b7af7…

MALICIOUS

PDF

49.3 KB Created: 2020-09-10 14:52:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0463b2b1bcb826fb5795c9aef2506b0d SHA-1: f141634da1734d994d6f91bde829e5b56932c7a8 SHA-256: 493b8383659b7af735d7d427d73ba49b79cfa0d67df28ee6d9a5232afb78f91a
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, specifically pointing to a URL designed to lure users with a game hack. The document body, though heavily obfuscated, contains references to this lure and numerous other PDF links, indicating a link farm strategy. The ML classifier also strongly flagged this PDF as malicious. The primary intent appears to be directing users to malicious content via the embedded links.

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.link/wix?keyword=total+conquest+hack+apk+mod In PDF document text
    • http://razof.ashanoeliyer.com/uploads/1/3/1/3/131398589/xopolav-ziwig-givinofo-totisumavesa.pdfIn PDF document text
    • http://files.carlyaltreewilliams.com/uploads/1/3/1/4/131482822/bujiri.pdfIn PDF document text
    • http://files.stmatthewspokane.org/uploads/1/3/0/7/130776103/637195.pdfIn PDF document text
    • http://gomexev.dnabjj.ca/uploads/1/3/0/9/130969744/ec93a8d2463.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/8d0191_b9aa6a2e73c04917bd4ca8185f017844.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9c8fb9_4aaa35e88a98492598324ff4b43df97d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/67f5f7_1146c46d621d46949a219ef5e0aca49b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/28146e_504848b3e35c43f18002cd3627446984.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4c1554_fa6b328c7d3c4705bd9c3c63a054e204.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b4a829_3b79ca69951649d098ba72bfe6fe7b9b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e3ff21_8e17c51a82a9448aabcfe7be7abc3b71.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/bdeb4c_4989165613f74c7daf969c00b18d9a95.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/83d902_3d75e0aa27fd45c29bcfedc172f34b14.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a771bd_7d70d4eec82248eda9bc55112698eff5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_99fad0fd65e749edbd69c1ff0b3a1c86.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_off00006d21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D21 5356 bytes
SHA-256: 8003ae62cc8acc36cd30dc4f7597f6f4c3d45ba051640e43f7e0d09808c7cd1a
font_01_sfnt_off00007f2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2E 10660 bytes
SHA-256: 2dc695ce5d4908c15b10b6d38907d21f0ef9dd65d67cd1d17c51d6259f5a4301
font_02_sfnt_off0000a2cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2CB 16160 bytes
SHA-256: 53c3ec829963ec5a0af1bff4be2d724acb9959b277e5253d769434e6be684fe1

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