Malicious PDF — malware analysis report

Static analysis result for SHA-256 c82f6716827bbc49…

MALICIOUS

PDF

87.4 KB Created: 2021-03-20 09:37:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ac28b7c69062f6015160d898c15de87 SHA-1: 5011261ac32e4a7cd8b220f46aa61405fcc5d22e SHA-256: c82f6716827bbc4943b1d6bee65b8f851c0e2dca571a6e640415ad7d1f692b16
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. 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, suggests a lure related to "cannibalism in the cars pdf". No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://lozipotod.ru/award?keyword=cannibalism+in+the+cars+pdf
    • http://creditscorerepair.info/88615287960gh47s.pdf
    • http://websecurer.tech/46265545995kmj8n.pdf
    • http://nazhivy.net/30519221754rmvs4.pdf
    • http://juwaniwabi.medianewsonline.com/nutritional_ergogenic_aids.pdf
    • https://cdn-cms.f-static.net/uploads/4493600/normal_6015d5934e278.pdf
    • http://ebay-coupon.ru/wubalulopoxidn0ooa.pdf
    • https://static.s123-cdn-static.com/uploads/4427094/normal_6000260ca6a87.pdf
    • http://sejerodetupumil.medianewsonline.com/admiral_washer_error_codes.pdf
    • http://duplicwcnj.space/percy_jackson_sea_of_monsters_watch_movien96cb.pdf
    • http://gejejasofubi.mywebcommunity.org/bhagavad_gita_english_iskcon.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://fetekovabu.onlinewebshop.net/how_to_change_time_on_a_timex_clock_radio.pdf
    • http://perexuwofogefo.onlinewebshop.net/hp_elitedesk_800_g1_twr_graphics_card.pdf
    • http://witimalolikoji.rf.gd/6403609971.pdf
    • http://xazasanedaned.epizy.com/cavalier_poets.pdf
    • https://uploads.strikinglycdn.com/files/d3dc78e4-0c83-4aad-9564-f3c3367e8d43/kodejajajizufen.pdf
    • https://uploads.strikinglycdn.com/files/35179d42-a10b-44ee-b555-12e6a9b0034d/8567027606.pdf
    • https://uploads.strikinglycdn.com/files/8f2f557f-cfa3-48f2-8e63-792984a4bafb/prescription_safety_glasses_frames_walmart.pdf
    • https://uploads.strikinglycdn.com/files/d34b17af-1452-4b42-9c48-a045c20388ad/which_treaty_ended_the_war_of_1812.pdf
    • https://uploads.strikinglycdn.com/files/fbb901f8-62b0-48b4-a0ac-dfb56b491fd2/50408290273.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010bef.bin
ab7df71d846d8d9d37fb2b1a80834975c567f096b8c436ad13d0b4eed853eb6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10BEF 5236 bytes
font_01_sfnt_off00011d80.bin
a6672540397e12410bbed9a1e66e5a182c22b80db02730d6d60fcad87ca02863		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11D80 11216 bytes
font_02_sfnt_off00014397.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14397 4324 bytes

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