Malicious PDF — malware analysis report

Static analysis result for SHA-256 68f22920d6f25288…

MALICIOUS

PDF

61.5 KB Created: 2020-08-20 04:51:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 173c0d84e70a8389ae9fb2bd9a9fd727 SHA-1: 483f7d7b24345c00b7708ebe7824847ab32c73f7 SHA-256: 68f22920d6f2528809b37765122e000a191cd2097ea6ed5f7d91c0aa68f23338
194 Risk Score

Malware Insights

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

The PDF contains multiple links to external resources, with a primary link identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=free+adblock+for+android+apk', suggesting a phishing or malware distribution lure. The presence of numerous PDF links, many pointing to Shopify domains, indicates a link farm designed to distribute malicious 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=free+adblock+for+android+apk In PDF document text
    • http://begajidov.hhslitmag.com/uploads/1/3/0/7/130740073/8521820.pdfIn PDF document text
    • http://files.jcarpentertherapies.com/uploads/1/3/2/8/132814086/f374eb59c27b1c6.pdfIn PDF document text
    • http://doded.oldzionwesleyan.com/uploads/1/3/0/7/130738632/fc98a0f3ea017.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/1/0440/9065/4870/files/averages_and_range_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9234/4999/files/sigofulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4032/files/77878086252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2239/7088/files/47326901051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8145/7061/files/namujodavemojovusedevet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5765/9560/files/luwarejuzarorobope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1021/8391/files/free_battleship_games_for_android_phone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1889/6038/files/21741811468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5589/6983/files/24373957482.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 3

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_off00009861.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9861 5128 bytes
SHA-256: 9114abaccb6ea6362c2be320c3b71abe2d7cf82df826627d5a95aa1e8452bd01
font_01_sfnt_off0000a9e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9E3 10668 bytes
SHA-256: 77982c807071516277b03841762115498c974baa97758b1cf6bd526c86f9fc22
font_02_sfnt_off0000ce56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE56 17444 bytes
SHA-256: b9c07489e0906e548fd2321ea551ccb3831683513f6c0abb6df7e71ce3785494

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