Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa0b57bf4a4e1bab…

MALICIOUS

PDF

284.8 KB Created: 2020-08-14 14:20:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02cc767b8414c24770eca6c2300874a5 SHA-1: aadb670564b9dd7e19b523ed837540ee4b8abb97 SHA-256: aa0b57bf4a4e1babf758f8afc79568ae125eb679720c734aaeb911f0470f9147
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The ML classifier strongly flagged this PDF as malicious. The embedded URL leads to a redirector that ultimately points to 'https://ttraff.cc/pify?keyword=module+6+test+answers+health', suggesting a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • 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.
  • 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=module+6+test+answers+health In PDF document text
    • http://files.blingattiphanys.com/uploads/1/3/0/7/130776445/dedadobigupek.pdfIn PDF document text
    • http://files.positivelifetransformations.com/uploads/1/3/1/6/131637273/bexerexekali-nivoxef-worowexako.pdfIn PDF document text
    • http://files.tiffanyshocklee.com/uploads/1/3/1/0/131071067/df707f35468f0a6.pdfIn PDF document text
    • http://files.ecmstudy.com/uploads/1/3/2/7/132711947/8d7668123d.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/1/0429/0953/2316/files/67434571227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9011/5748/files/iphone_5c_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8959/2473/files/advanced_probability_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0692/6741/files/34080094084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/58838047427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/gmail_search_operators.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/livro_acgih_2020_portugues.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7180/7392/files/pengertian_asidimetri_dan_alkalimetri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/3062/0832/files/namakam_chamakam_download_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/sosafokubefexugir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7670/5690/files/logodatufotofikozanoba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/ruzepexuwutafoke.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_off00040aca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40ACA 5164 bytes
SHA-256: 033e215312ef7634f102c386bd53359242e0f243dc64d9a7b47a1586d90f5ccd
font_01_sfnt_off00041c63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41C63 16632 bytes
SHA-256: 68aa5ccd69ed541740b2de87441d1958fa22be7a952cb02a064e6ee72213cd08
font_02_sfnt_off00044ff2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44FF2 16132 bytes
SHA-256: 06d84a79787f49517cba9647d12dd77c675544b9e46e70dbd0c3ec2b8d2a160e

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