Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ac7e41d70f21e44…

MALICIOUS

PDF

77.2 KB Created: 2021-01-09 16:40:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 704b4ee5d757b496f397ad5f2b89f374 SHA-1: 73e84864aba3a549200281464a7a6939017ea2a8 SHA-256: 7ac7e41d70f21e443d5d4851eb73eb9664ef1b9afa75520d600e62fe19217550
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as a phishing trojan by ClamAV and flagged by an ML classifier. It contains an external URI and an image lure pointing to a redirector URL, suggesting a phishing attempt disguised as a free download. The document body, though heavily obfuscated, contains text related to 'Alimentacion para diabetes tipo 1 pdf', reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffnew.ru/aws?utm_term=alimentacion+para+diabetes+tipo+1+pdf PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/xabixunidelojibovivolofug.pdfIn PDF document text
    • https://s3.amazonaws.com/nijudow/beef_cattle_management_practices_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/everytown_game_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c844fa08-ae81-42d1-8aa2-23fef906ddab/62241017532.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55732b6b-65df-4ede-8eae-2a8bd36ad7fc/zewarejekarajizipi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c379567-29bf-4df8-9ce4-436166e67c3c/91236765697.pdfIn PDF document text
    • https://s3.amazonaws.com/vuraradaso/champion_gasket_sheet_thickness.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/avg_2017_crack.pdfIn PDF document text
    • https://s3.amazonaws.com/tonisefoteka/tepenotazureleniz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec029250-1cd2-42c8-9f98-1b0589a0e709/apollo_125cc_dirt_bike_specs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/212de9b4-1eda-4f9d-b049-3e180c92b097/ar_test_login.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/701ea025-aa6e-4487-ae01-126200106109/how_to_make_5_dollars_online_fast.pdfIn PDF document text
    • https://s3.amazonaws.com/bejokazemur/34166456151.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/cool_dragon_girl_names_in_roblox_dragon_life.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC6 5480 bytes
SHA-256: 965c9badf9ac0d8b61d48d2d8d7802fda8344143eafe4fffbe04b65dd6c096a7
font_01_sfnt_off0001004e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1004E 11736 bytes
SHA-256: aa704a20d6cda0a061459f374db227c3daadbb9e2880484eacc90a6109cf3ae3

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