Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5a32dfe44b716fe…

MALICIOUS

PDF

54.9 KB Created: 2020-08-03 03:29:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b41e8ceb19b8b70403172dc7a07c4d64 SHA-1: 74b9674413f482290fba74217a384435d254e18b SHA-256: c5a32dfe44b716fe4bf4cfa186b319bd7ebfc5202507d3227e773eda1f8dc06e
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, disguised as a download for 'Guitar Hero 3 Xbox 360'. The PDF also contains a large number of links to other PDFs hosted on Shopify, likely for SEO manipulation to improve the ranking of the malicious link. The ML classifier strongly flagged this PDF as malicious.

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=guitar+hero+3+xbox+360 In PDF document text
    • http://files.childprotectionresponsecenter.org/uploads/1/3/0/7/130739340/02906a.pdfIn PDF document text
    • http://files.jcvrs.org/uploads/1/3/2/7/132712217/logenipukedul.pdfIn PDF document text
    • http://files.samchaseyoga.com/uploads/1/3/1/0/131070561/tasod.pdfIn PDF document text
    • http://files.millennialbarbers.com/uploads/1/3/2/6/132682404/316a2e8690e3bbb.pdfIn PDF document text
    • http://files.kaushikthallapally.com/uploads/1/3/1/3/131381555/1790553bd1.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/1/0435/8235/7663/files/calculus_for_scientists_and_engineers_multivariable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9635/9580/files/84972942274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2027/1264/files/jabef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9295/9642/files/mesigebakewemelurukufoxiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3656/3866/files/how_to_setup_blue_snowball.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2270/5063/files/36927444546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4903/1592/files/sozesafasezato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6853/8521/files/81339945378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9145/2314/files/35560625396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1483/1780/files/bizowajuxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5168/7848/files/92202560224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1839/4523/files/lajuzidirixuwezogefadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/tivekulusixugagobapuwuje.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: kaushikthallapally.com 9 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_off00008cf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CF2 5264 bytes
SHA-256: 1defc345a6931956e8bec67ec631536963402682d2b283e015de72c8b470de24
font_01_sfnt_off00009eda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EDA 15568 bytes
SHA-256: 17865dcdd51ba4ddfe05c6b086560fa70bb4a31aa0864fb98d68fd5db35f5ce4

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