Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b30a941f6fbd2c2…

MALICIOUS

PDF

88.3 KB Created: 2021-06-29 03:55:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 3cf1d9ecc1d5e2cce51f221ee453dcef SHA-1: 0e151c9cf78baaf4d2327f39f6c5342c2f7ed6b5 SHA-256: 6b30a941f6fbd2c26a4da0c7a72299aa7f83522f17813236e2c0a83f53c1756e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URLs, many of which are hosted on compromised websites, suggest a phishing or malware distribution attempt. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of numerous unknown PDF links points towards a download or redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/160831c508e58f---71045891844.pdf
    • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9e89d02ea---tupiserikaze.pdf
    • https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/p2i4qsil1l7osurove50a099m9/lebatiwewe.pdf
    • http://absolutelyneon.com/userfiles/file/pajumesuwekimisijupogafe.pdf
    • http://ash-graphy.com/userfiles/file/rebanifumilobapozizipix.pdf
    • http://www.alex-vasilkov.ru/images/wisdom/file/setabezimokerivujudaxoxak.pdf
    • https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/2acff530335b75987d5869394483f35e/22666127421.pdf
    • http://www.sport-konyv.hu/userfiles/file/82722906301.pdf
    • https://www.americansummercamps.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075c52206624---jivikavenizu.pdf
    • http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/88f7d617622aa771c3029dc5c01f26dd/wivap.pdf
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/epru9qk3e1ike67l17aelrt287/76780457986.pdf
    • https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/fh2pb6k9fn497sn7c07nv92fo4/modujif.pdf
    • http://carszana.com/image/upload/File/82930094957.pdf
    • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e39d92130f---43284768626.pdf
    • https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/3fc390cd16ddd0d9030d84c3f0bef251/redamirafegupup.pdf
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ba830ab39d---xatovesazapog.pdf
    • http://playbabydoll.com/userfiles/file/27475062896.pdf
    • http://www.herbertvanderbrugghen.nl/draft/samajinexino.pdf
    • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/a39b7d47938e3ab0c111a25e9acfdb26/kebetedobido.pdf
    • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/16071ac4e99979---sijubibozaxofumejo.pdf
    • http://artetendasud.it/userfiles/files/61971020817.pdf
    • http://ciskmv.com/css/file/pefitane.pdf
    • https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/160805c151737a---zoluvu.pdf
    • https://beaumont-residence.com/wp-content/plugins/super-forms/uploads/php/files/k45slq13njeb85m08hb2thkdaq/39477948978.pdf
    • http://elfuklid.cz/foto/Image/file/5204320808.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=use+of+bolometer
    • 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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f9af.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF9AF 16792 bytes
font_01_sfnt_off000111c6.bin
e3851a6ef8ed56c8c0c96e833852c77670427b7da3e529dca8a16a636d1ca4ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x111C6 10164 bytes
font_02_sfnt_off00012893.bin
d5d46e5f77a2640e215daa72a8ed51cc464f8752cb3e30a2b835822f934036b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12893 16796 bytes

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