Malicious PDF — malware analysis report

Static analysis result for SHA-256 c73598837565d0bc…

MALICIOUS

PDF

80.8 KB Created: 2021-03-23 20:58:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00508e2f24d5c0ac096b64582a908a52 SHA-1: 7ab49cac2f99a43eb358307db82a1dfeb18b0529 SHA-256: c73598837565d0bc5905487c183470a1a20fbaa2152aaa9dbea828a27ea0d766
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URL 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, suggests a lure related to 'mini pill' effects on mood, aligning with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://xezojetit.ru/strik?utm_term=does+mini+pill+affect+mood
    • https://cdn.sqhk.co/xakatikakizi/sjcCXif/world_war_z_game_steam_release.pdf
    • http://sevagawos.getenjoyment.net/the_colour_of_magic_book_download.pdf
    • https://cdn.sqhk.co/besogevipadi/jjjjdjg/65639600157.pdf
    • http://tigenule.22web.org/puzulekekuk.pdf
    • https://cdn.sqhk.co/kibutonap/iijjdBb/free_rider_hd_offline_editor.pdf
    • http://lukezifiv.iblogger.org/snapper_lawn_mower_parts_near_me.pdf
    • https://cdn.sqhk.co/xawodoze/hh6KrCD/zamizuverigipagenewo.pdf
    • https://cdn.sqhk.co/mujexoxa/SihGEgg/ibis_paint_x_brushes.pdf
    • https://cdn.sqhk.co/nesadatifu/hbiajjP/debebitulox.pdf
    • https://cdn.sqhk.co/vibisimak/idhghgY/kujolunozi.pdf
    • https://cdn.sqhk.co/fofubulami/hfgJAZY/wool_stair_runners_by_the_foot.pdf
    • http://rijexofugovu.medianewsonline.com/concrete_admixtures_handbook_free_download.pdf
    • https://cdn.sqhk.co/nalujujoso/iiyiesL/44978558192.pdf
    • http://dabuxupufudina.22web.org/zivoxitoduso.pdf
    • https://cdn.sqhk.co/rebabafa/gdifec5/twilight_struggle_deluxe_edition_vs_normal.pdf
    • http://riniwovefaraw.22web.org/the_testament_of_rabbi_israel_baal_shem_tov.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://jirapatosug.rf.gd/51012994354.pdf
    • https://uploads.strikinglycdn.com/files/4c5fdbc2-89e3-4a31-b176-54330e88629c/effects_of_a_preschool_music_and_movement_curriculum_on_childrens_language_skills.pdf
    • http://bifovigavij.myartsonline.com/advanced_sql_interview_questions_and_answers.pdf
    • https://uploads.strikinglycdn.com/files/f3c99b32-afd0-4e3d-acf7-3caf94841c76/yoga_anatomy_leslie_kaminoff_amy_matthews.pdf
    • https://uploads.strikinglycdn.com/files/7737a04a-4c65-403b-b4ac-9e82ed54271b/navneet_log_table_book.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_off00010051.bin
3d079df9852f24437d2360766a6b384a5b49f9330dc9f223b3645382002351de
pdf-font-stream PDF embedded font (sfnt) at offset 0x10051 5204 bytes
font_01_sfnt_off000111fb.bin
bb38a2bd057d9a209264db2e044941ce3ccf84d41b7985c74a7e9be65a771fb3
pdf-font-stream PDF embedded font (sfnt) at offset 0x111FB 10448 bytes