Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa7c2057e615ad7b…

MALICIOUS

PDF

40.2 KB Created: 2020-08-09 20:17:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c7b09cd8cd1ae5ce29a4bc1a60f8481d SHA-1: eb83b6a3a7c62efb17de2013783dbface6081a76 SHA-256: fa7c2057e615ad7bd9b9d5181a0d9f651b1742a3a85b2e4548328951691d52f6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a high number of embedded URLs, many pointing to what appears to be a link farm designed for SEO poisoning. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is used to obscure the final destination. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=gtu+academic+calendar+2020+pdf, suggesting a lure related to academic calendars to trick users into clicking the malicious link. No scripts were extracted from this sample.

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.com/pify?keyword=gtu+academic+calendar+2020+pdf In PDF document text
    • http://files.meaganedgar.com/uploads/1/3/0/7/130738622/gujawa-tebawudo-kusenivufi-funuzutatis.pdfIn PDF document text
    • http://ziwisa.stashasasylum.com/uploads/1/3/2/3/132303382/xiripaga.pdfIn PDF document text
    • http://xuvutakoz.a1fitnessusa.com/uploads/1/3/1/6/131636655/f6187b6d9bc697.pdfIn PDF document text
    • http://files.mimisbooksandmore.com/uploads/1/3/2/6/132695574/50693510e1f.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/1/0431/0332/2269/files/68235328916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8770/7806/files/bixojiradev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/volobufepafolosovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9569/5266/files/vojifexegaxolotupel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8434/8569/files/reravezuzarub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7016/0032/files/embankment_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5161/3336/files/11217691222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4681/4374/files/stardew_valley_sprinkler_range.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7373/2768/files/gixogexulufikisisiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4949/9289/files/milejupigulemonerulireka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53940500656.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
🗂 Part of campaign: mdeasonphotography.com 5 samples

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_off00005de7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE7 5428 bytes
SHA-256: 2f19338aa761e896512b977b70e0748aa1095d1b866763a1fc1b0103221072fd
font_01_sfnt_off00007049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7049 10300 bytes
SHA-256: 84d887c67d26de299bca904c14bcb7ec0836a9dd940cb8ac4e87297df82be021

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