Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa08e34da8e08953…

MALICIOUS

PDF

80.0 KB Created: 2021-03-13 21:36:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: c3c6fb4c034c6c5fa56c651fd7875aa5 SHA-1: b0a6dddc9cb9b10643adec9a07975da7b9bfbd61 SHA-256: aa08e34da8e089532a64f42c03a576eab9c1bf9e9675f2dae2ed150840155a8e
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://midufefew.ru/award?keyword=baby+girl+names+in+tamil+pdf+format PDF link annotation
    • https://xuvakaxatal.weebly.com/uploads/1/3/1/0/131070170/47def98.pdfIn PDF document text
    • https://jomigotub.weebly.com/uploads/1/3/4/7/134748998/varonuwerukakukezuz.pdfIn PDF document text
    • https://kanumipiga.weebly.com/uploads/1/3/5/3/135346224/cd940ecdbe.pdfIn PDF document text
    • https://lafefetakizin.weebly.com/uploads/1/3/2/7/132712235/loniputowawej.pdfIn PDF document text
    • https://kupalupatumer.weebly.com/uploads/1/3/1/8/131857031/317753428ab.pdfIn PDF document text
    • https://kijujiwovijuk.weebly.com/uploads/1/3/1/4/131453096/xikipabi_tupixogosu_mafewinetufiti.pdfIn PDF document text
    • https://ginimowawogob.weebly.com/uploads/1/3/4/7/134753870/fibizom.pdfIn PDF document text
    • https://xamikike.weebly.com/uploads/1/3/1/4/131406211/4beefa78b7.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
    • https://s3.amazonaws.com/fosagobomap/dungeon_master_guide_3._5.pdfIn PDF document text
    • http://bolozenafo.rf.gd/97213159420.pdfIn PDF document text
    • https://041aa876-b65b-432c-96c0-58c8b295a4e4.filesusr.com/ugd/90d19e_031ac96f31f3411c9eb0fc28ff63048e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/juvuraguvutoxif/radeon_graphics_card_performance_comparison.pdfIn PDF document text
    • https://09ec9d85-9312-4337-94d0-b84080e05f2e.filesusr.com/ugd/ac0094_07ba32d699f9494abb04ca622bee6f38.pdf?index=trueIn PDF document text
    • http://mufejerawuvolej.epizy.com/masikopi.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/fix_motorcycle_tire_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/bifadiwuwileji/denon_avr-x4200w_bluetooth_headphones.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/kebovugev.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/daxoba.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/proper_and_improper_fractions_worksheets_grade_4.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/lovubosakuwuv.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/jafemenejozujaxa.pdfIn PDF document text
    • http://sedobuxekazadi.rf.gd/environmental_compliance_monitoring_report.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC5 5440 bytes
SHA-256: 7c48fb0997d2824149a110cf60e1839f9b4b96d096a60736c4c22e9a5025ddfa
font_01_sfnt_off0001002b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1002B 10508 bytes
SHA-256: 9080697dd3cb893e5661cab51a005885defd406f3ae88e983e47a1d79d31afc8
font_02_sfnt_off000123f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123F6 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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