Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b66ba661cd72746…

MALICIOUS

PDF

72.8 KB Created: 2021-02-21 20:50:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: d680cc5f8e6e9e497f610275f409a4b0 SHA-1: d3772fde7b0e2465dee0d1aaed9154dd8a032285 SHA-256: 0b66ba661cd72746749171db4179136fdf4f3b65fb94991a2420532f08059704
96 Risk Score

Malware Insights

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

The 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, which is likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, contains text that appears to be related to an order or confirmation, aligning with a phishing lure.

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://maypoin.ru/strik?utm_term=ep+booster+pedal+order PDF link annotation
    • https://cdn.sqhk.co/nizekidido/gijdicZ/how_to_draw_anime_hair_girl_short.pdfIn PDF document text
    • https://cdn.sqhk.co/lirebirab/A1icgco/minecraft_world_seed_pewdiepie.pdfIn PDF document text
    • https://cdn.sqhk.co/molavagew/95IgdAT/kim_kardashian_hollywood_game_hack_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/gatidixon/ch5KIhc/fangamer_tucson_arizona.pdfIn PDF document text
    • https://cdn.sqhk.co/soboxuxafiso/90hbi8D/uncivilized_crossword_puzzle_clue.pdfIn PDF document text
    • https://cdn.sqhk.co/purorelaz/hMNZhg2/nasa_asteroid_news_2020_april.pdfIn PDF document text
    • https://cdn.sqhk.co/sesumaku/jjzihhc/sisegubejonovuroxejodor.pdfIn PDF document text
    • https://cdn.sqhk.co/novozefox/ig4slih/fifilen.pdfIn PDF document text
    • https://cdn.sqhk.co/kisetofekuzi/hgh5hdc/california_lottery_scratcher_book.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/kabisebax/grim_soul_survival_beginners_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/vudivuzakal/39010571532.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/how_old_is_the_joker_in_the_dark_knight_returns.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/equation_of_line_maze_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/wolina/nolakun.pdfIn PDF document text
    • https://s3.amazonaws.com/tonisefoteka/filter_for_samsung_refrigerator_rs25j50.pdfIn PDF document text
    • https://s3.amazonaws.com/rijaliwiguvex/mukedixemovibobesugo.pdfIn PDF document text
    • https://s3.amazonaws.com/tiniruru/kapebanabowafomosume.pdfIn PDF document text
    • https://s3.amazonaws.com/fizup/aluminum_sheet_pan_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/kumasala/66987535260.pdfIn PDF document text
    • https://s3.amazonaws.com/sowirutelevolur/knights_of_cydonia_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/sudevejerifu/case_simulator_ultimate_mod_apk_6._1.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e16e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE16E 5048 bytes
SHA-256: 996848a228d7580d81f66a569da2b527b7105f72c99800de07e867347294d3d2
font_01_sfnt_off0000f29b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF29B 10396 bytes
SHA-256: e55ec0ada4ecf1dbf470aba605f5f6eb80c714d128c7b2ae456e81702331347a

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