Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a33df32d839516b…

MALICIOUS

PDF

58.4 KB Created: 2020-08-03 20:50:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 236a428fcac81f05d0216682649a058a SHA-1: da51e0c6929caef7befbce91cb26e38c24252c60 SHA-256: 1a33df32d839516bf5b0f092f16cade7e77ed1091160a71b0c0b714a9c85af27
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though partially garbled, contains text related to the linked content and the malicious URL itself. The primary malicious URL is 'https://ttraff.cc/pify?keyword=expos%25C3%25A9+sur+l+amenagement+du+territoire+ivoirien+pdf', which is designed to redirect users to further 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=expos%25C3%25A9+sur+l+amenagement+du+territoire+ivoirien+pdf In PDF document text
    • http://files.jbkirklanddesign.com/uploads/1/3/1/8/131871593/magezijen-xavasigate.pdfIn PDF document text
    • http://files.texastechequestrian.com/uploads/1/3/1/4/131453256/tanidar.pdfIn PDF document text
    • http://files.keepanopenmind.net/uploads/1/3/0/8/130814642/354913.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/1/0433/3237/0584/files/tupar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/1160/9500/files/c_select_case.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0426/2561/files/26490374713.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8850/2174/files/jubovolemelubivup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/dotilakejinodoxolelup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8998/3640/files/xifejunulurujezebimubif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6102/6719/files/11262426922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9381/9541/files/letafigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6747/3046/files/craigslist_rapid_city.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/4526669732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1202/1662/files/69827853130.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_off00009f89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F89 5588 bytes
SHA-256: 0953d02c7de6609292b2a9926edb6236e55e841e21c42b690e3fb1e4d775e6c0
font_01_sfnt_off0000b241.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB241 13016 bytes
SHA-256: 6a4248fbae5ebaad07199514c8d6bad4647a5f0d8250de27feb0f18794040cdf

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