Malicious PDF — malware analysis report

Static analysis result for SHA-256 1841f49a2fcaa5cb…

MALICIOUS

PDF

88.6 KB Created: 2021-01-30 05:19:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 17766290b2377777ac312f8c50451314 SHA-1: bed43b5f3907b154edf37586a221036951e81246 SHA-256: 1841f49a2fcaa5cb63a83f0bc3cf3e8ce320a43df26ed94ba408032260d9f9e1
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a high-severity heuristic firing for a redirector link, identified as an image lure for free-download phishing. ML and ClamAV classifiers also flagged the file as malicious. The embedded URL, https://maypoin.ru/aws?utm_term=narasimha+telugu+songs, is the primary indicator of compromise, likely leading to a phishing page or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://maypoin.ru/aws?utm_term=narasimha+telugu+songs PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4411700/normal_5fe580c1e21fe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473947/normal_5fdd9ae722f35.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486197/normal_6005e59f77a2c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366063/normal_5ff25edb49bd0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477913/normal_5fe24ac7bea27.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414486/normal_6006581fb631f.pdfIn PDF document text
    • https://pefodiral.weebly.com/uploads/1/3/4/4/134476409/3127273.pdfIn PDF document text
    • https://tamipabofoj.weebly.com/uploads/1/3/4/8/134876193/makotofi_gifinabuzuze_rofenepugez_nufimepagize.pdfIn PDF document text
    • https://kanodofeju.weebly.com/uploads/1/3/5/3/135325650/2024934.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495050/normal_5fe02120243c2.pdfIn PDF document text
    • http://gomuleg.22web.org/ayatul_kursi_transliteration_english.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://renirujetumofid.epizy.com/energi_airdrop_answers.pdfIn PDF document text
    • http://nematamaduwos.epizy.com/repajojovubisipovamalato.pdfIn PDF document text
    • http://geluzejezi.epizy.com/2121106243.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f6ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6EA 4952 bytes
SHA-256: 8b33df6dfd55c8d4edec280e2e1ebef64c336410df007daa26706785e4634006
font_01_sfnt_off0001079a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1079A 10568 bytes
SHA-256: 6a7b8fa8882605b6da37777766568a31836602e5f6818835eb2145434ed3a81b
font_02_sfnt_off00012bc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BC3 18056 bytes
SHA-256: 459a0a8bb3f1f6634c8162a06ab103bc126448a11f7891f641f52ce97e56a29c
font_03_sfnt_off0001476c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1476C 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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