Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cb02cddfea51e04…

MALICIOUS

PDF

81.6 KB Created: 2021-03-17 00:12:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e80f21fd26ecd09e5952bc9af68dd459 SHA-1: d8221119c940c6b4e517a28fd1ee266be7e80283 SHA-256: 6cb02cddfea51e045c2bd1aa59d9998920ee01983a32f9c301759e35919b87d0
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware download site. The document body, though heavily obfuscated, suggests a lure related to technical books, aligning with the embedded URL's keyword.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://golowaki.ru/award?keyword=the+elements+of+statistical+learning+data+mining+pdf
    • https://cdn.sqhk.co/sefibenip/8iffPid/28252775072.pdf
    • http://venupalu.iblogger.org/sea_doo_owner.pdf
    • https://cdn.sqhk.co/nozesinipi/xZgifJr/31182323564.pdf
    • https://katibaluzopoxu.weebly.com/uploads/1/3/0/7/130738884/9450db.pdf
    • https://fakivafepupu.weebly.com/uploads/1/3/0/8/130873921/3413900.pdf
    • https://cdn.sqhk.co/tujuvemevo/6gchFab/1623230669.pdf
    • https://bonawoxe.weebly.com/uploads/1/3/3/9/133986387/mogowopivozawivur.pdf
    • https://cdn.sqhk.co/dikapagoloza/jjrgigh/metal_slug_attack_female_characters.pdf
    • https://cdn.sqhk.co/wejafivelij/njejiif/what_happens_if_you_eat_crowns.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://mopiluganaloriz.epizy.com/get_carfax_report_cheap.pdf
    • http://romisov.epizy.com/schaums_outline_mathematica.pdf
    • https://uploads.strikinglycdn.com/files/52f72758-c317-4725-b30e-b61667b42c5d/mebetaroduteneme.pdf
    • http://javasuk.epizy.com/cisco_ccna_200-301_book.pdf
    • https://uploads.strikinglycdn.com/files/a06b53a3-4197-40b9-8f81-8d655f96b5a1/the_adventures_of_huckleberry_finn_sparknotes_chapter_1.pdf
    • https://s3.amazonaws.com/mokamoba/maths_olympiad_questions.pdf
    • http://sufalilisep.rf.gd/lodalerarowevidinewasoj.pdf
    • https://s3.amazonaws.com/benubapopikaj/ruwek.pdf
    • https://s3.amazonaws.com/xisefowu/sewazifebozozuro.pdf
    • https://uploads.strikinglycdn.com/files/856d94ba-b1e4-4230-b796-b52afaa84af0/35400190426.pdf
    • https://uploads.strikinglycdn.com/files/1f7ba0b3-66f1-4e79-9a30-534e1d28a337/22643142276.pdf
    • https://uploads.strikinglycdn.com/files/1731339e-5f47-457a-96e0-3fd91e5232c0/what_do_you_do_when_your_sony_tv_wont_turn_on.pdf
    • http://japebugusob.epizy.com/nolovuwukusizomiwi.pdf
    • http://labeberop.epizy.com/48512422188.pdf
    • http://zutibebasonuf.epizy.com/bank_of_america_statement.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eabc.bin
e326b34fcc6335d7ccbf24202e82fd100d25bd524d514e3226d5dfb0dcf5e9f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEABC 5516 bytes
font_01_sfnt_off0000fd52.bin
c5f52b3688f64bb69018245ea6551004ccd1d071e0fc10a7421c464e2788238c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD52 10640 bytes
font_02_sfnt_off000121f7.bin
1b44218257806f750c7fedc2cca84b6b30ff477c2da870f9e14c0541087d9c9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x121F7 16544 bytes

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