Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd4d4ef4c62b5ae2…

MALICIOUS

PDF

79.0 KB Created: 2021-02-16 21:22:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 02255648157f83c58e0be3fffb3f22f8 SHA-1: 47ecb0bda68609c72703152ca80ea6e302350cbc SHA-256: cd4d4ef4c62b5ae27ec162a3b6850fbcb88c535636dd6248a8969ab27d1020ae
96 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, appears to contain keywords related to car options, suggesting a lure to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://seumenha.ru/123?utm_term=2020+camry+se+options PDF link annotation
    • http://pubggaming.online/helicopter_gunship_strike_hacktc3tn.pdfIn PDF document text
    • http://study-english-05.site/fulodutekugiwifememaj2mjfc.pdfIn PDF document text
    • http://puxeguka.iblogger.org/android_review_prompt.pdfIn PDF document text
    • http://idealslimitaly-official.site/18001652539ju9qs.pdfIn PDF document text
    • http://vpntop.info/nervous_system_worksheet_grade_4uuckz.pdfIn PDF document text
    • http://zoo-taxi.site/whatsapp_apk_mirror_2._19._282ychh0.pdfIn PDF document text
    • http://letgtma.bid/tier_list_maker_smash_apps3gz13.pdfIn PDF document text
    • http://effektzhizni.ru/saps_forms_2019v61pz.pdfIn PDF document text
    • http://zerkalo-fugicar.website/billboard_music_awards_2018_live_performancesix5wg.pdfIn PDF document text
    • http://tublitalia.space/how_to_start_oracle_express_edition_18cu0agz.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/dozuga/bvg_india_limited_company_information.pdfIn PDF document text
    • https://s3.amazonaws.com/jazuravazaguz/basic_guitar_chords_finger_placement.pdfIn PDF document text
    • https://s3.amazonaws.com/kizugokofo/subalusabidavejoxif.pdfIn PDF document text
    • https://s3.amazonaws.com/woxorojero/android_tablet_with_2d_barcode_scanner.pdfIn PDF document text
    • http://rodiwube.epizy.com/33317480302.pdfIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/mil-_hdbk-_454b_guideline_64.pdfIn PDF document text
    • https://s3.amazonaws.com/satuja/checkpoint_15400_admin_guide.pdfIn PDF document text
    • http://fanulatanaz.rf.gd/pencil_shading_worksheets.pdfIn PDF document text
    • http://pidejekakej.epizy.com/likiduja.pdfIn PDF document text
    • https://s3.amazonaws.com/varoximu/guwobapavozesumatoze.pdfIn PDF document text
    • http://dozudaz.epizy.com/fegudabiwofixox.pdfIn PDF document text
    • https://s3.amazonaws.com/nuselufuzo/kannada_latest_audio_songs_free.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f931.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF931 5328 bytes
SHA-256: 6dadb72c2e7a2456b3d731391a415e917c28937164d62d29a8a35cd66e568481
font_01_sfnt_off00010b3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B3D 10448 bytes
SHA-256: 570f6bd1974fc759ceaca83b2f5800c481df856c8aaff7e430e39baa8e1bdffe

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