Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ea1c0c12bcf5b50…

MALICIOUS

PDF

42.3 KB Created: 2020-08-12 10:09:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d897f4441cef19232feef54ad0a47913 SHA-1: 96a4d0e4ffe6f7a2635175a7544129654c42ecfe SHA-256: 3ea1c0c12bcf5b505ee2ea08d1ff76668fc7d5b6f47e5badf4860490a005dd4f
202 Risk Score

Malware Insights

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

The PDF file contains a prominent link disguised as a tutorial download, which redirects to a malicious URL. This indicates a social engineering attack aimed at tricking users into visiting a potentially harmful site. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility. The primary malicious URL identified is ttraff.cc.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=codeware+compress+tutorial+pdf In PDF document text
    • http://bexeraso.rollingstonepens.com/uploads/1/3/1/8/131871796/9721677.pdfIn PDF document text
    • http://files.twbuddha.com/uploads/1/3/0/8/130813042/7232510.pdfIn PDF document text
    • http://files.rubiis.com/uploads/1/3/1/8/131856995/fimudu.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/1/0431/2599/7722/files/mtg_arena_installer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5388/files/zipevixijakajebiranoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9755/5093/files/addiction_procrastination_and_laziness_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9919/3501/files/25310500048.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2172/8933/files/list_of_vocabulary_words_with_tamil_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2530/0629/files/heart_bottle_gungeon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6211/7031/files/36769071181.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5331/8298/files/94743964704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6726/0582/files/xidowudilulisogomidixim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73807437975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0391/7974/files/mefetizaseloxosafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6275/5490/files/85929418839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4135/6950/files/zawawodedagafusezo.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_off00006669.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6669 5296 bytes
SHA-256: 9a8f838fe30638767b878044926803fe6d61365ea84553763456ac594589c433
font_01_sfnt_off00007868.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7868 10528 bytes
SHA-256: c9a83fa7de3e839a0d0403c7a76ef3975165fe504984fd3145064d639a23d355

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