Malicious PDF — malware analysis report

Static analysis result for SHA-256 9576461222802176…

MALICIOUS

PDF

91.7 KB Created: 2021-04-02 13:20:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0e623bb30c4780568f2b10803c260b98 SHA-1: 13d34a31118eb2a4b9e221abf18e115b478fb613 SHA-256: 9576461222802176737dd65cf6aeed58376694b3b8b980d4df8e20b6de8cf00f
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, which is likely a phishing lure. The PDF structure and embedded URI suggest an attempt to redirect the user to a malicious website, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://soxebez.ru/wix?keyword=greater+dragonmark+5e
    • https://cdn.sqhk.co/romilononove/pjiijFf/free_streaming_sites_for_nfl_games.pdf
    • https://static.s123-cdn-static.com/uploads/4413002/normal_60092a4292012.pdf
    • https://cdn-cms.f-static.net/uploads/4374360/normal_605ddb6f9db0c.pdf
    • https://cdn.sqhk.co/jerizukop/XijEnhj/41144284527.pdf
    • https://cdn.sqhk.co/bepemuno/jndngfg/voa_farsi_tv_frequency.pdf
    • https://cdn.sqhk.co/guwaloxipete/hftqjiR/35371127869.pdf
    • https://cdn-cms.f-static.net/uploads/4388165/normal_60122623eafa3.pdf
    • https://cdn.sqhk.co/nezazexador/gf1albG/56356265786.pdf
    • https://cdn.sqhk.co/butituguxur/hGjaKig/nitimixi.pdf
    • https://cdn.sqhk.co/xewimoziwuvo/boZvhhh/pezujuwatog.pdf
    • http://gemosugobez.22web.org/chameleon_color_adapting_lwp_apk_pro.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://zasizekid.rf.gd/scrabble_rules_uk.pdf
    • http://zujexig.epizy.com/pine_tree_3d_model_free.pdf
    • https://s3.amazonaws.com/sefipa/abba_dancing_queen_video.pdf
    • https://s3.amazonaws.com/xukonakefules/41487185915.pdf
    • http://pipademepazofex.epizy.com/gravity_falls_opening_piano_sheet_music.pdf
    • https://s3.amazonaws.com/tonemakopinibem/203559060.pdf
    • https://s3.amazonaws.com/dogevazapiwediw/2000_honda_accord_4_cylinder_lug_pattern.pdf
    • https://s3.amazonaws.com/bepukuba/vadakusa.pdf
    • https://s3.amazonaws.com/kimone/980349321.pdf
    • https://s3.amazonaws.com/jupevuxirapi/dezukoz.pdf
    • https://s3.amazonaws.com/zupenafud/44506463752.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000102b7.bin
3feaaac52df13f0118fefb565cc16dc4fd96a538689af47f3db327e733162f08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x102B7 4896 bytes
font_01_sfnt_off00011347.bin
8ccf0b6adcb1bef23725dd237c9c179cb391d9dbfb8290310424f0bc2759c944		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11347 12352 bytes
font_02_sfnt_off00013db6.bin
3666a103e384f9f8218bd2dbdcde648aab1dd7985a38acf883d2aecbd3615bcb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13DB6 16276 bytes
font_03_sfnt_off00015337.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15337 4324 bytes

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