Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc9f3b85eee19f33…

MALICIOUS

PDF

47.6 KB Created: 2020-08-23 05:00:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5adef3270d2875dc4a1956cbf51c53ab SHA-1: b26b395004f59ed9df56e0dc872a175ff6949c7e SHA-256: bc9f3b85eee19f33985cd78e83e6609a16ad860a437c9170587afadb12845d5c
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=us+army+games+apk'. The document body, though heavily obfuscated, contains references to this URL and other PDF files hosted on Shopify, suggesting a link farm or redirection strategy. The primary intent appears to be directing users to malicious infrastructure under the guise of a game download.

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=us+army+games+apk In PDF document text
    • http://files.hydeparksuzuki.org/uploads/1/3/1/4/131409128/5778785.pdfIn PDF document text
    • http://files.kayleesullivan.net/uploads/1/3/0/9/130969761/2737500.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/1/0438/9748/7512/files/11991642584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0638/5573/files/wopugurilevafekaworugaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3635/9326/files/goronerulipajeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4789/2630/files/88380604651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3381/1351/files/nifoxojafukomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4416/6037/files/manual_kia_cerato_2010_portugues.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4291/9832/files/jonaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2602/2554/files/63118646549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2164/6498/files/the_last_stand_union_city_hacked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9711/2219/files/critical_race_theory_3rd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8014/6334/files/debalutufikizidopojotivir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3347/5737/files/thanthi_today_news_paper_in_tamil_download.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 2

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_off00005e6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E6C 5968 bytes
SHA-256: a18470a7765eca8627b3c8e92e09ab19b27ea0dc29649842cd96c7d57898d2f4
font_01_sfnt_off00007312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7312 5264 bytes
SHA-256: c0f74a3471ab96e585e49884dc70e3eda7d681598912445839ebb1e407ffd4ba
font_02_sfnt_off000084f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84F2 14280 bytes
SHA-256: 76e7fc58f8b5680465c05d91335c6f665b4e40a47190ee0e2a1e5fe2d73060a4

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