Malicious PDF — malware analysis report

Static analysis result for SHA-256 8602903823f3bb35…

MALICIOUS

PDF

78.1 KB Created: 2021-03-15 07:24:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47cbb03c03a6ccd32c209a98b9bb47ca SHA-1: 95fbee8ac1bb013dd382485a9200f71da93b33d5 SHA-256: 8602903823f3bb35700ec01989bf7962c616882af14a84fc6226b135e232ddcc
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely intended to redirect the user to a malicious website. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing lure designed to trick users into visiting a compromised site.

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://dafemum.ru/wix?keyword=the+great+escape+piano+pdf
    • http://gozatelaji.22web.org/free_loft_bed_plans.pdf
    • http://orbitan.fun/lowrance_elite_7_ti2_pricehg5ik.pdf
    • https://vakitisize.weebly.com/uploads/1/3/4/0/134017930/golemi_kusopowoliwaxug_lolebu_gigaduduzive.pdf
    • http://sodaapp.pro/tomoralasce0ri.pdf
    • http://copyright-central-media.com/king_canada_10000_watt_generator_reviewsv39gr.pdf
    • http://betmoy57.com/the_norton_introduction_to_literature_portable_12th_edition_freeqlvex.pdf
    • http://jigitozunawada.66ghz.com/jojemojororofatazekuk.pdf
    • http://povar2020.site/how_heavy_is_a_snow_plowrp6mc.pdf
    • http://maturibcgj.space/68547880046z1nmq.pdf
    • http://blog-millionaire.buzz/32364547974r6j4u.pdf
    • http://jilet1.club/epson_wf_2630_paper_jam1u97e.pdf
    • https://nosozekime.weebly.com/uploads/1/3/4/6/134634018/1168c4de82eeb88.pdf
    • http://english-10.site/65663073973epucw.pdf
    • http://presalle.xyz/appula_apparao_songs_free4ve8f.pdf
    • https://xalitive.weebly.com/uploads/1/3/4/3/134320973/9ce535146.pdf
    • http://genusadnlo.space/hachiman_smite_sourcetuu2c.pdf
    • http://www19216801.site/97185306382p293y.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/d8086598-b08a-440e-9ffc-932c5ba1cf01/how_to_use_a_potentiometer_to_control_motor_speed.pdf
    • https://uploads.strikinglycdn.com/files/289f5a8d-f36f-42a6-9afb-64eb5cde6d40/how_to_descale_nespresso_vertuoline_evoluo.pdf
    • https://uploads.strikinglycdn.com/files/1f74f27b-ecd3-4450-a73a-e7d2802316fc/19617602888.pdf
    • http://jimabepur.rf.gd/teargas_another_chance_mp4.pdf
    • https://uploads.strikinglycdn.com/files/cfc3fb47-878b-442c-8d21-46d8705fc120/sodegidisuzow.pdf
    • http://nowaginog.epizy.com/pigoweruvakoriluludux.pdf
    • http://nejotuwusa.rf.gd/lizzo_truth_hurts_piano_sheet_music_free.pdf
    • https://uploads.strikinglycdn.com/files/fb5d54b5-a299-4696-b747-6eb0d0f2960a/2000_honda_accord_service_manual.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f021.bin
e5d404b1418506a135621b93ec4f5106a85a16bbacd12b104a035a6ec71b83ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF021 5332 bytes
font_01_sfnt_off00010240.bin
4be66848ef74e3ea933cc94e4d6161670794449f3a80e9661fc93fc39588daa5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10240 12356 bytes

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