Malicious PDF — malware analysis report

Static analysis result for SHA-256 76be0f06d69429f5…

MALICIOUS

PDF

100.8 KB Created: 2021-03-23 06:05:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 45842ac21cfa8d6482870e452ca90b8c SHA-1: ef03425a57015ba3edc911d6735cc23abcccde49 SHA-256: 76be0f06d69429f58846529eee9733726f0108da754fff43cb8a9b51ccd8c17b
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to a game, which is a common tactic for phishing or malware delivery. It embeds a URL that points to a suspicious domain, likely serving as the next stage of the attack. The ML classifier and ClamAV detection strongly indicate malicious intent, and the embedded URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://dugedepap.ru/strik?utm_term=how+to+play+with+friends+on+game+of+life+app PDF link annotation
    • http://tonemisi.medianewsonline.com/31857406582.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421218/normal_6010fe12b465f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464080/normal_605911b4672ba.pdfIn PDF document text
    • http://lukisasore.mywebcommunity.org/32888037681.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/sugowubuf/sukerivin.pdfIn PDF document text
    • https://s3.amazonaws.com/wefemabeni/camera_translator_offline_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d4119e0-c646-40e4-8a7c-f93349a18bb5/27303679178.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f9c2953-c8d9-41e6-ba77-8294543a0547/52164429365.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b72cb4c8-0c29-42bf-a174-acf125d9b940/mtd_20_ton_log_splitter.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/anita_anita_telugu_naa_songs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73ae48b8-e52b-439f-ba7d-9b675c6c9221/28286650663.pdfIn PDF document text
    • http://zorikeroz.onlinewebshop.net/dresden_files_book_15.pdfIn PDF document text
    • https://s3.amazonaws.com/semuxemakaw/innocent_witches_guide_chapter_5.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc446433-d611-4590-a03d-50d7a845aee6/jay_z_in_the_dust_of_this_planet_t_shirt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9bd365b-16f1-49f1-8914-12e1c6643b89/sutizakilelepolu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d16e0b25-0b47-4e17-ba0b-4114cf7ff7a1/what_is_a_literature_review_example_for_psychology.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_off00014ce1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14CE1 5612 bytes
SHA-256: 7fe25e1b6a010572e114c993f11bb1e52e23f354ef2997c933037c7dbaeb17d2
font_01_sfnt_off00015fe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15FE7 11364 bytes
SHA-256: d1d2ec501255e2ddab8867ac7b48b0ffb3d0575489d9a8aab2f1184a75f1b8b9

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