Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b16cb1e4025ae96…

MALICIOUS

PDF

148.4 KB Created: 2020-08-01 12:21:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1fac789fa5a9e52039b2fe7187c0ef00 SHA-1: fdbfc57419fe2733c6f4ed8c47d12f8ab1ee1ae9 SHA-256: 7b16cb1e4025ae964341b6189b28470f0c8b0d8f177e66ef1517dbf34770a757
134 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it is a malicious redirector, specifically designed to lure users with an SEO-optimized link for a 'free download'. The primary malicious URL identified is ttraff.com, which is known to host redirector infrastructure. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.com/pify?keyword=prime+primer+gungeon In PDF document text
    • http://files.lionfoundation.net/uploads/1/3/1/0/131069763/nesol_topanifa_botirare_lujotoz.pdfIn PDF document text
    • http://files.fbchartland.com/uploads/1/3/1/0/131070151/7190602.pdfIn PDF document text
    • http://files.chrisremitzcpa.com/uploads/1/3/0/7/130776042/xepigus_givelo.pdfIn PDF document text
    • http://files.stjohnsmtpleasantmi.com/uploads/1/3/0/7/130739369/fa7a6308f.pdfIn PDF document text
    • http://files.wscs.org/uploads/1/3/0/7/130776757/3735549.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2139/3320/files/97137143555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8022/9791/files/nonosunerenutedok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0262/5178/files/pitepanipijarobeve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8907/5099/files/gabanixupobaderumiweluk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2534/9273/files/wetil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9634/2695/files/nabewajuliwumasava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0709/9558/files/xukoxetuxixezepako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6815/2216/files/mufokosoxis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7007/0690/files/10211451599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0775/2866/files/17665636775.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mikawewetekiwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96672573922.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00020154.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20154 4524 bytes
SHA-256: 060efdd6520962403c6a3c5ce9ea08881fd51f945420c52af7786b67cf550b74
font_01_sfnt_off00021089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21089 11076 bytes
SHA-256: b3972372641c315f5da090aaf15a467b14341278655fac81d5862b515916aacb
font_02_sfnt_off00023588.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23588 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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