Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1b29c627281eab3…

MALICIOUS

PDF

70.4 KB Created: 2021-02-17 18:14:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 6dc98b754a6ffa4487961e792ac8a8c5 SHA-1: 5984dbc204392177ae253fc47d203899d08b4db2 SHA-256: b1b29c627281eab32b228c3df7c1b3f37e8cdad8a0705f3dbe8ff51523a28ee2
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wix?keyword=andosbox+paid+apk PDF link annotation
    • https://cdn.sqhk.co/toromerepowa/fJcgGqk/82545669820.pdfIn PDF document text
    • https://cdn.sqhk.co/jogeguzotire/jcoghVa/povezupowanasemul.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403429/normal_6018d9ede5812.pdfIn PDF document text
    • https://cdn.sqhk.co/xudevekelefe/MWififp/comic_reader_app_download.pdfIn PDF document text
    • https://webuwexuzebonal.weebly.com/uploads/1/3/0/7/130775053/jisiloxixebu.pdfIn PDF document text
    • https://cdn.sqhk.co/bijukipuj/geBiVIS/nekixiketarasip.pdfIn PDF document text
    • https://tivifetanesa.weebly.com/uploads/1/3/5/3/135347176/safidotokok_minipiba_gadib.pdfIn PDF document text
    • http://ru-1.casa/pugojavaduwutarigoz0x5w0.pdfIn PDF document text
    • https://webupusew.weebly.com/uploads/1/3/5/3/135344455/gijewavifadatav-rewijib-jefurikejeta.pdfIn PDF document text
    • https://cdn.sqhk.co/jotepomi/hcKiaii/78992819635.pdfIn PDF document text
    • https://cdn.sqhk.co/peluxisomex/idau5gg/vesibaxezabigoz.pdfIn PDF document text
    • https://cdn.sqhk.co/vibisimak/ibRGJgd/ultimate_car_simulator_cheats.pdfIn PDF document text
    • https://rusizatigaj.weebly.com/uploads/1/3/4/0/134041601/787268.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d084.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD084 5084 bytes
SHA-256: 98c44118d900f5db0736019d8d1815447f785a19b79d546387da68927f4b3bba
font_01_sfnt_off0000e1e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1E1 13768 bytes
SHA-256: d23b8004debda5882a691ea29bb34d1957f3589de34056cbd4ddeddf8b502dcc