Malicious PDF — malware analysis report

Static analysis result for SHA-256 93c3e71599297796…

MALICIOUS

PDF

52.5 KB Created: 2020-08-22 21:42:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c550e384e26f83120e88c9cd024e8a4d SHA-1: 70568d8ba7751a5de3d365d999020293703b30f7 SHA-256: 93c3e715992977960c1fbd41ba2ad59eac93785b95ac45a31036f80a62f88098
194 Risk Score

Malware Insights

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

The PDF document exhibits malicious behavior through a critical heuristic firing indicating a redirector link to a known malicious infrastructure. Additionally, it contains a link farm with numerous external PDF links, many hosted on Shopify, suggesting an attempt to manipulate search engine results or distribute content. The ML classifier strongly supports the malicious verdict. 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.ru/pify?keyword=sundari+penne+malayalam+song+free In PDF document text
    • http://popakanu.rickydemedeiros.com/uploads/1/3/1/6/131606552/xanonuxege_jobegijinava.pdfIn PDF document text
    • http://files.africanliongroup.com/uploads/1/3/1/3/131379678/9399255.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
    • http://smc.org.inhttp://smc.org.inIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7610/8956/files/english_to_bengali_language_translator_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1221/7241/files/vamul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0697/5382/files/90541382556.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9676/8673/files/82231302536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6060/9692/files/41794010668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/85430138835.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0423/0805/files/45516896122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0480/3741/files/lobizepixupixopixip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2779/8944/files/zatovelojudatuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4610/9341/files/ledufadimowofonamujopeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/jexibiduvowalaruworaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/14384541251.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
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn 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_off000067c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67C5 5568 bytes
SHA-256: 702c9ff2e53a5680788fa979d265e8637c0f2b53ed3fca09afbe4ace32c0749c
font_01_sfnt_off00007a97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A97 8328 bytes
SHA-256: 7f431fbed2c49222b2be600526aebc51f96821d961db24a0f1ec58df5c5af442
font_02_sfnt_off000096ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96CA 14680 bytes
SHA-256: f3779369d32aab11ac99bd6f1cdd6aac5c306151e5057c0a6ad547d3989a0162

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