Malicious PDF — malware analysis report

Static analysis result for SHA-256 88a0eb30593cf28a…

MALICIOUS

PDF

33.7 KB Created: 2020-08-02 17:49:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 784fc8813422d05d726ea3b29f50a88f SHA-1: 9a6530ee54ea60035e67c3310aa61e16f32aad6a SHA-256: 88a0eb30593cf28ab982b9f8f93fbf5143eab53b267c1cb8f17427761b81c8bc
194 Risk Score

Malware Insights

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

This PDF file contains multiple embedded links, with a primary URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a game ROM download, directing users to the malicious URL. The presence of numerous links and the ML classifier's high confidence score indicate a malicious intent to redirect users to harmful content.

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.ru/pify?keyword=legend+of+zelda+gba+rom In PDF document text
    • http://files.marhamchurch-pc.gov.uk/uploads/1/3/0/8/130873718/b383307e601c.pdfIn PDF document text
    • http://files.christiancounselorcooperative.com/uploads/1/3/1/4/131411539/786efb8eceba4.pdfIn PDF document text
    • http://files.summerfoxart.com/uploads/1/3/1/8/131856987/burujekatexot_bojalotibab_sepevusosa.pdfIn PDF document text
    • http://files.bellafiorelagottos.com/uploads/1/3/0/7/130776542/3dec942c4ab251.pdfIn PDF document text
    • http://files.robbyersuk.com/uploads/1/3/1/4/131438330/9076359.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/1/0434/0868/7269/files/22908270692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6127/8885/files/doxusebozuvovavaxesibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6357/4682/files/reading_comprehension_elementary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8945/1416/files/the_garden_of_sinners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6101/0842/files/81190165478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/fulegotuvakujuxekufakesom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6539/3820/files/55488559456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/jaxisilirokopefez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1510/9799/files/78004838354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3880/2073/files/98590434153.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4636/2527/files/luditikuvokeji.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004717.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4717 5180 bytes
SHA-256: 7f47c781ed20e0738403012200edca967c040d73231e9df209d5b2b483114229
font_01_sfnt_off000058ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58AE 9704 bytes
SHA-256: d0a399f9e56eec605ff08747593d3793804e6fdebbbc96f8aa03e8a6d26e33d4

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