Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e336663f86f06a1…

MALICIOUS

PDF

53.8 KB Created: 2020-08-29 23:21:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fc0bf73dd58564c14e516c54a7a062f9 SHA-1: ffd8ac2b1225188fb99a01aaa7bde4d9f1940ac1 SHA-256: 0e336663f86f06a129e778102056d2fbd875c3e721b2bd9eb03b38e26e1ab329
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains a URL pointing to 'ttraff.ru', which is flagged as a malicious redirector. This suggests the document is designed to redirect users to malicious content, likely for phishing or to download further malware.

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.ru/wix?keyword=minecraft+by+zyczu+1.12.2 In 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/ea5d7b_50b9b74d26fb462489d1c43f5b677d65.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_1c6863ba88144bb3a23b51bf74ff5727.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_15e92f99d0184713afe8be59e0e5d453.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_67939c9c2acd465c9f9410e3c6801e63.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4007/2102/files/75271809493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0697/5382/files/icm_business_management_and_administration_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9103/8118/files/bewufekopijipukudez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/riwor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9884/7894/files/kusemexerega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3178/1791/files/labrinth_jealous_piano_sheet_music.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_a6174b4b10694f6aaf6d5218462505bf.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_f7a807859dc34f56aad9b7afb7e94efb.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_bc4811e10edb45acbd096aa9428404c1.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 6

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_off0000946b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x946B 5180 bytes
SHA-256: df9c086c3344d0cd16e0e53e677b33891e46968085217f38b5d6911f3d436a27
font_01_sfnt_off0000a637.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA637 10668 bytes
SHA-256: f51186d7730949e7c30893f54ad6b4b9b1936c120cf2d606a6b7894419803b8a

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