Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a7fdd65595839c4…

MALICIOUS

PDF

79.8 KB Created: 2021-03-16 10:57:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 8e7e13ab72a30f3dc94ca6cea16407dc SHA-1: 6eecabdabb40a512e192129587579e08e306f50f SHA-256: 7a7fdd65595839c4edb4f1611d879273fa4a0547e15faefa78b19c3987575529
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, identified as malicious by ClamAV and a machine learning classifier. The document body, though truncated, suggests a lure related to 'How to beat halo reach laso', likely intended to trick users into visiting the malicious URL for further exploitation. No scripts were extracted, but the presence of the external URI and the malware detection strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/strik?utm_term=how+to+beat+halo+reach+laso PDF link annotation
    • https://cdn.sqhk.co/xapawavuma/jNRiirg/sniper_ghost_warrior_contracts_xbox_one_digital_download.pdfIn PDF document text
    • https://cdn.sqhk.co/nokotadi/e75Y7ji/16464953083.pdfIn PDF document text
    • https://cdn.sqhk.co/xexanodu/gbgjyZD/how_do_you_treat_road_rash.pdfIn PDF document text
    • https://cdn.sqhk.co/lefuwaregew/ihciihg/97601969537.pdfIn PDF document text
    • https://cdn.sqhk.co/bisulalu/qMhbziL/screen_time_passcode_hacker.pdfIn PDF document text
    • http://vumogegotawugub.mypressonline.com/crossfit_workouts_at_home.pdfIn PDF document text
    • https://cdn.sqhk.co/ragekasa/d2mBmhj/xexesujijumijemofi.pdfIn PDF document text
    • https://cdn.sqhk.co/seponidozit/dLgdjd1/59766604201.pdfIn PDF document text
    • https://cdn.sqhk.co/fogobewataja/0j4jfig/dining_chairs_modern.pdfIn PDF document text
    • https://cdn.sqhk.co/jiguluzufuwa/gjPvmdW/79651333413.pdfIn PDF document text
    • https://cdn.sqhk.co/sovokeduseb/jgjbaja/93403558739.pdfIn PDF document text
    • https://cdn.sqhk.co/nozelenid/YjhE3F2/34782772284.pdfIn PDF document text
    • https://cdn.sqhk.co/senosekagoko/ja30jft/sky_force_reloaded_level_5.pdfIn PDF document text
    • https://cdn.sqhk.co/sojowidaz/idDovhf/nemur.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/kozewuposoridil/ninalibigelusabuvo.pdfIn PDF document text
    • http://sajomapujozokux.onlinewebshop.net/zasara.pdfIn PDF document text
    • http://fabevax.myartsonline.com/where_to_find_graco_car_seat_expiration_date.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/bloons_tower_defense_6_apk_7._1.pdfIn PDF document text
    • https://s3.amazonaws.com/genedesowul/jelewotufaxof.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/satin_wrap_formal_dress.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/93290805100.pdfIn PDF document text
    • https://s3.amazonaws.com/zusevamasor/peaky_blinders_season_1_reddit.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/csgo_float_value_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/how_to_enable_ecg_on_apple_watch_5_outside_us.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_off0000fd36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD36 5080 bytes
SHA-256: fe0cd3939b1db41f6ed9d10eb4031912cf3d39b0a152232bd1834d07a533c07a
font_01_sfnt_off00010e86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E86 10356 bytes
SHA-256: 662af5ee42a8e2c02df0104a3ba43e441ef9c4a8a6035962cdb646b1129e21a4

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