Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2c93ae75872230f…

MALICIOUS

PDF

83.6 KB Created: 2021-03-16 17:45:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: c7370574a9417bdd2fa9b5f343e78141 SHA-1: b3696cd88eb2fa09c4ec9bb6df3e608b96c0e6eb SHA-256: f2c93ae75872230f9d7d99c21451a2ba678d549d0b2164dd6c6470d246ce1a27
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site. The document body, though heavily obfuscated, contains references that may be related to lures or campaign identifiers.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://nipisod.ru/strik?utm_term=johnny+silverhand+drink+chippin+in PDF link annotation
    • https://ketijumorowifop.weebly.com/uploads/1/3/2/6/132682879/vorati.pdfIn PDF document text
    • http://prognoz-football.club/carranza_s_clinical_periodontology_12th_edition_download685z8.pdfIn PDF document text
    • http://bukudix.getenjoyment.net/abituriyent_jurnali_2020_kecid_ballari_yukle.pdfIn PDF document text
    • http://faceskinagainbeauty.xyz/sony_bdp-s3200_lost_remotecel0q.pdfIn PDF document text
    • http://euroshopmn.space/bamikixisigiworubezazaurng6.pdfIn PDF document text
    • http://manibupefif.mypressonline.com/rurexomegofujato.pdfIn PDF document text
    • http://wozuxel.getenjoyment.net/psychodynamic_formulation_cabaniss.pdfIn PDF document text
    • http://waparudadip.mywebcommunity.org/new_john_deere_garden_tractor_prices.pdfIn PDF document text
    • http://cz-nitrof.website/dipapifanulipakudetir9axaf.pdfIn PDF document text
    • https://nemaxololele.weebly.com/uploads/1/3/5/3/135304154/tumolokujipidamer.pdfIn PDF document text
    • http://like-store.site/2002_lexus_es300_motor_oil_type8djiy.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/chivalry_medieval_warfare_ps4_trophy_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0cda81a-77f4-46f3-bbeb-580e21310037/braun_thermoscan_7_review.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/94821895793.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/86417315506.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8d39621-965c-4354-b315-df49873d82c1/28326978854.pdfIn PDF document text
    • http://nepopenezum.rf.gd/23275348168.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a9f4d9f-5491-4067-84aa-9ee023a24b12/novojakodib.pdfIn PDF document text
    • http://dafitigare.epizy.com/gedenobagamap.pdfIn PDF document text
    • http://tibilekozox.epizy.com/24502021091.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02980b20-f13c-4ed9-8b38-43fe31f16fe6/fight_club_consumerism_movie_poster.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f6377ae-5bd6-48a3-9072-20570f17d951/82010325456.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/bossanova_jawa_suket_teki.pdfIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f272.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF272 5376 bytes
SHA-256: 77dffc7f68c1fdda3bd45b1db4574d1210a0c0525ebd55ed31266e21610fc20d
font_01_sfnt_off000104c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104C3 10916 bytes
SHA-256: 92c5e84a03cc5ee4ed956ea60a02616fc01e3fd54acbd007a5579dfa1be8d08a
font_02_sfnt_off00012a2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A2D 16092 bytes
SHA-256: 9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2

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