Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b3605f8553a474f…

MALICIOUS

PDF

75.6 KB Created: 2021-03-21 09:47:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f29847a2e2e9ff250a112a3c6737f121 SHA-1: d4c60874931cc9dfbcb17d6d0ca5160008147de0 SHA-256: 0b3605f8553a474f4b3fef7725119dfa4ea1a4a22def765a52c8a6f3bb87d392
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 URL that mimics a search result, likely intended to trick the user into visiting a malicious site. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly suggest a phishing or credential harvesting 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://soxebez.ru/award?keyword=sublingual+route+of+drug+administration+pdf
    • http://help-lnstagram-verifycopyrgiht.com/scary_blocky_granny_horror_craft_escape_mode0nyu7.pdf
    • https://cdn.sqhk.co/kufedefivuvu/iajdiaD/tonagule.pdf
    • https://cdn.sqhk.co/dosojegomugu/vmfifuu/best_way_to_get_voice_search.pdf
    • http://laura-egorova.ru/pusetegowitukedosurutkpkat.pdf
    • http://raisinshq.club/nerowigis6kgey.pdf
    • http://zonokiwuwagupu.getenjoyment.net/how_much_do_soccer_referees_get_paid_in_south_africa.pdf
    • http://jisilasi.22web.org/19291338776.pdf
    • http://czecheducation.space/tidarimomubeveqstqu.pdf
    • http://nomokesus.sportsontheweb.net/billye_brim_authority_of_the_believer.pdf
    • http://connexion-amelii.xyz/screen_recorder_windows_10_onlinex28a1.pdf
    • http://storezone.info/salam_indir_minecraft_1.7.984pkl.pdf
    • http://phillipen.online/templates_for_baby_boy_shower_invitations9lplq.pdf
    • https://cdn.sqhk.co/vesagivara/hdsuyhf/74019090634.pdf
    • https://cdn.sqhk.co/nenuguvan/djhjg9P/diy_paper_craft_ideas_step_by_step.pdf
    • https://cdn.sqhk.co/sabiwizi/8ijtijw/32897903454.pdf
    • http://erogan24.website/rational_and_irrational_numbers_worksheet_grade_8j13yl.pdf
    • https://cdn.sqhk.co/japokaxe/xjeijhi/truck_wallpaper_4k.pdf
    • https://cdn.sqhk.co/dizukenepu/ghcihjd/betazokodekozefo.pdf
    • https://cdn.sqhk.co/webuzifinuno/gggggjb/block_craft_3d_building_simulator_games_mod_apk.pdf
    • https://cdn.sqhk.co/nadetajagupe/2fj3eja/56040887808.pdf
    • http://livecopyrightverification.com/millionaire_next_door_net_worth_equationrs4r3.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://dipagepe.atwebpages.com/cch_chuyn_thnh_file_nh.pdf
    • http://jowakumini.epizy.com/bora_stankovic_uvela_ruza.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_off0000ea70.bin
f07e5ecfca00bae42a640bcfc84691c33c46998627eda840687e99f617bba0c1
pdf-font-stream PDF embedded font (sfnt) at offset 0xEA70 5604 bytes
font_01_sfnt_off0000fd67.bin
c5a57bee75c56ffe889fd2e1cd61d7faf9056eb88c3180c449750b91e0c9bbf6
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD67 10472 bytes