Malicious PDF — malware analysis report

Static analysis result for SHA-256 80f973a91cd187e4…

MALICIOUS

PDF

81.3 KB Created: 2021-03-28 23:27:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7cd6df2e972bd071290cb67a3140176a SHA-1: b17ba374bfe28c32ad06d8776e1bd66598393a9e SHA-256: 80f973a91cd187e415e1fc7754adbceaccd7beb38ffe246daa982b21095573ad
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URL that redirects to a malicious domain, likely as part of a phishing or scam campaign. The document body, though heavily obfuscated, contains text related to a search query, suggesting a lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving the execution of further malicious content via the embedded URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jacksth.ru/wix?keyword=is+jiren+stronger+than+ultra+instinct
    • https://cdn-cms.f-static.net/uploads/4459777/normal_6029aaa8a4407.pdf
    • http://runmasten.online/la_sombra_del_viento_resumen_breveto8wd.pdf
    • http://chambrely.xyz/ziwuxarenoponatix8wsq.pdf
    • https://static.s123-cdn-static.com/uploads/4403539/normal_5fc87644ada32.pdf
    • http://freefire-gifts.com/96748887599w9ixx.pdf
    • http://m-laskin.ru/rent_school_edition_scriptwb9vv.pdf
    • http://genoray.pro/galojaguboxe0v1.pdf
    • https://cdn-cms.f-static.net/uploads/4367964/normal_60251534394f5.pdf
    • https://static.s123-cdn-static.com/uploads/4450438/normal_5fdfca795b741.pdf
    • http://jushq.club/jitazodagisisunotuwj8oz6.pdf
    • http://uchebnoe.website/826097377613o4y7.pdf
    • https://cdn-cms.f-static.net/uploads/4380522/normal_6019d0ec995f6.pdf
    • http://item-get.top/how_to_reset_motorola_g7_without_passwords3vwr.pdf
    • https://static.s123-cdn-static.com/uploads/4401732/normal_5feede15ea35c.pdf
    • http://khareedforosh.com/guvuboxawukoruzusola33m42.pdf
    • https://cdn-cms.f-static.net/uploads/4470207/normal_600e89556837f.pdf
    • https://cdn-cms.f-static.net/uploads/4426682/normal_60419da418be7.pdf
    • http://reduslim-shop.site/porisiluzexatapu1b6jv.pdf
    • http://medicinfo.online/80825556876ies1z.pdf
    • http://gtmedis.com/sedaxisepawoxx712a.pdf
    • http://webdefilmizle.com/adobe_premiere_pro_2016_free_downloadjv0qt.pdf
    • http://ilkertr.shop/how_to_make_a_simple_bow_using_wired_ribbonqom3k.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/xalexojaxipud/75550328127.pdf
    • https://s3.amazonaws.com/tutasujal/75043587752.pdf
    • https://s3.amazonaws.com/fusopoxipo/how_to_improve_dog_joints.pdf
    • https://s3.amazonaws.com/zufaxepixiguxax/36506019971.pdf
    • https://s3.amazonaws.com/rewepalazamiso/44165553458.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f208.bin
8e227032172b0b6c4aaa9276ff10aab3a82618eb96debf1a7a1d3f9ac8b9de88		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF208 4956 bytes
font_01_sfnt_off000102db.bin
9e7c43c66c9788ddbaa56074048a2737f1ad5d61a451b1a073e2c5355a1348bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x102DB 11104 bytes
font_02_sfnt_off0001289a.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1289A 4324 bytes

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