Malicious PDF — malware analysis report

Static analysis result for SHA-256 32fbec0092fe96eb…

MALICIOUS

PDF

96.0 KB Created: 2021-05-23 10:58:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0173b1c840858c92921a40ea23667b1f SHA-1: b47d78ac286870052876eea11aed89af36d301bc SHA-256: 32fbec0092fe96eb6baed54d18b044dff2437c08c0b804289029eb9ec2796e7c
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains embedded URLs that, while some are marked as benign, suggest an attempt to redirect the user. The document body, though heavily obfuscated, appears to be a lure related to a 'scoring guide', likely to trick users into downloading further malicious content.

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 http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://feedproxy.google.com/~r/wb/ENAH/~3/4NO0L8wlyOA/wb?keyword=wrat%204%20scoring%20guide
    • https://s3.amazonaws.com/miwolezedubujoz/colon_polyps_symptoms_merck_manual.pdf
    • https://uploads.strikinglycdn.com/files/d4954af3-6852-4a74-8bac-b172b7925478/converting_ft3_to_m3.pdf
    • https://uploads.strikinglycdn.com/files/ad7e139f-4df4-4b29-a03d-3ba29fdd7f83/skyworth_tv_review_2019_philippines.pdf
    • https://uploads.strikinglycdn.com/files/ebddb221-5923-4b1b-a506-40f8459f73af/48882800822.pdf
    • https://uploads.strikinglycdn.com/files/546f2e4b-21a3-4309-9431-0cba53910a7e/dell_n5010_release_date.pdf
    • https://uploads.strikinglycdn.com/files/46df2956-faaa-40b3-894d-10b531fbcc4f/32713568675.pdf
    • https://uploads.strikinglycdn.com/files/87710d48-e4e0-485a-820f-0ce24e59c72a/54410802545.pdf
    • https://s3.amazonaws.com/sezebepit/information_security_policy_free_template.pdf
    • https://uploads.strikinglycdn.com/files/47b296f3-2158-47e6-ae99-94bb6ee0c7be/55008222407.pdf
    • https://uploads.strikinglycdn.com/files/d5744a39-7eed-45f7-9741-b0ca44c6fe33/international_trade_finance_news.pdf
    • https://s3.amazonaws.com/timituvupame/xml-_formatter_atom_install.pdf
    • https://uploads.strikinglycdn.com/files/4d93d4f9-4208-48f3-a3fe-493f4531226c/87844279104.pdf
    • https://uploads.strikinglycdn.com/files/c08280dc-64b8-45db-98a7-eb15fbc2ed0c/43346395871.pdf
    • https://uploads.strikinglycdn.com/files/48136a98-4793-4c4d-8315-29fd0d41dbc0/xuxewawuluvunajokote.pdf
    • https://uploads.strikinglycdn.com/files/57030b57-761b-4ecb-bf0a-996ec0390c02/matar_a_un_ruiseor_resea_pelicula.pdf
    • https://uploads.strikinglycdn.com/files/d32598e8-4804-4a67-8fbd-4374a2c14ae8/par_quoi_peut_on_remplacer_la_mascarpone_dans_une_recette.pdf
    • https://uploads.strikinglycdn.com/files/b6dc1643-37db-4fe2-8f87-e03e8ad4be62/is_flight_simulator_2020_available_on_xbox_one.pdf
    • https://s3.amazonaws.com/womirofop/bandbudh_aur_budbak_gta_game.pdf
    • https://uploads.strikinglycdn.com/files/1c112317-fc0f-406c-b13a-60af1abef075/myers_briggs_personality_test_4_questions.pdf
    • https://uploads.strikinglycdn.com/files/063cf2c3-3160-4650-88e8-63abd204d3a1/wildgame_innovations_xb380_crossbow_manual.pdf
    • https://uploads.strikinglycdn.com/files/c450c42f-6bdb-4b08-bd30-96a3e3ee0981/how_to_use_primo_water_dispenser_coffee_maker.pdf
    • https://uploads.strikinglycdn.com/files/cb202faf-5d99-4bce-8b74-df53475fb6f0/the_crown_cast_season_3_episode_8.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_off000138cd.bin
16fc324b7a7e4dedec8d2569a25b6e4f13c37f7f76c1d8f9be92d887ced7df7d
pdf-font-stream PDF embedded font (sfnt) at offset 0x138CD 5176 bytes
font_01_sfnt_off00014a85.bin
fe51ffa9710c8b64c1477e7c2a9cf1e09731a0b0c606c0caf7e21f6661b7d442
pdf-font-stream PDF embedded font (sfnt) at offset 0x14A85 11972 bytes