Malicious PDF — malware analysis report

Static analysis result for SHA-256 fce80350dac6dc52…

MALICIOUS

PDF

78.8 KB Created: 2021-03-10 21:24:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2b721dab3c5e2e2b52129962c2413954 SHA-1: 2513d12f549038560e7e1ab196c48d4576440ab1 SHA-256: fce80350dac6dc52a7255f1f3fb0b5f7279a9076c596ee6ad037203acfb828a3
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search result for a specific product, likely intended to trick the user into visiting a malicious site. ClamAV detection and ML classification strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI heuristic suggest it's designed to lead users to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/award?keyword=digital+multimeter+fluke+179+pdf
    • http://perfectiona.online/40503969038hywvl.pdf
    • http://firstsecu-paypal.com/81403661763kb9n4.pdf
    • http://granitmetrospecstroy.ru/texto_argumentativo_expositivozlf64.pdf
    • http://kipupera.22web.org/89622694803.pdf
    • http://instasurprise.online/rudemijazad94rs.pdf
    • http://erse.xyz/authors_similar_to_big_little_lies_crossword_cluefdyqi.pdf
    • https://cdn.sqhk.co/liwifetil/AgeKjfZ/popular_old_soul_songs_radio_shows.pdf
    • http://bevatijiwavefad.22web.org/seaworld_orlando_park_map.pdf
    • https://cdn.sqhk.co/lopumilekana/hjjhAgg/6567221338.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://jemekovivokuvup.epizy.com/what_is_the_purpose_of_philosophy.pdf
    • https://s3.amazonaws.com/robumuduluwise/wujoxibafezagoxuvodurufo.pdf
    • https://s3.amazonaws.com/vutame/xokakexiwesakonis.pdf
    • https://uploads.strikinglycdn.com/files/9eb1d510-b468-4b66-8b00-539b8c98cb0d/31983779332.pdf
    • https://s3.amazonaws.com/vebisop/yalta_and_potsdam_conferences_worksheet.pdf
    • http://gezewezelatemak.epizy.com/9440621465.pdf
    • https://uploads.strikinglycdn.com/files/3f912298-da8b-4a9e-bf54-2a6361f33f40/kerbal_2_release_date.pdf
    • https://s3.amazonaws.com/gedimuta/adventure_game_app_android_free.pdf
    • https://uploads.strikinglycdn.com/files/23a20562-442e-42f1-a08a-792d9aa9d6d5/data_science_r_basics_online_course.pdf
    • https://s3.amazonaws.com/dupula/8348273406.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb74.bin
68591431ac8f45154f3f9cc442ea358cb0f56f433f96027ada932f95cd00a673
pdf-font-stream PDF embedded font (sfnt) at offset 0xEB74 5200 bytes
font_01_sfnt_off0000fd41.bin
6b5c700da967b73b060bc3da74349d19126df66f6de683950fe426ded42e7b1d
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD41 10088 bytes
font_02_sfnt_off00011fdd.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x11FDD 4324 bytes