Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c6205f744f9429c…

MALICIOUS

PDF

73.7 KB Created: 2021-02-23 00:28:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: cc1352e6caa00ba168a362a69af1be33 SHA-1: 124131b668af0a132b3f43d5a86b2a42a854df97 SHA-256: 8c6205f744f9429ceda34268a54c1ee099f5d70051811333dab3db4de45105fb
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://leonvi.ru/123?utm_term=navien+hot+water+heater+instructions PDF link annotation
    • http://soldonlittleton.com/854566886013ah4g.pdfIn PDF document text
    • https://cdn.sqhk.co/zekafomaze/Chb6BJM/real_city_gangster_game_download.pdfIn PDF document text
    • http://cesaregaspari.com/ruremuduk49bkn.pdfIn PDF document text
    • http://studytogether.fun/agnus_dei_samuel_barber_sheet_musicihit7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382407/normal_60342f483aa81.pdfIn PDF document text
    • https://cdn.sqhk.co/tazuxalana/ggrRlgg/jegajuxadamawebasikutuf.pdfIn PDF document text
    • http://cardio-natural.info/selekixuwuxunemubimilocm75m.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455657/normal_5fde4ad6035b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410714/normal_60342f37a5fbf.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/fovezewi/descriptive_statistics_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/50373626483.pdfIn PDF document text
    • https://s3.amazonaws.com/xupimaral/42642192583.pdfIn PDF document text
    • https://s3.amazonaws.com/wamatasamegu/current_blood_transfusion_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/game_dev_tycoon_mod_apk_money.pdfIn PDF document text
    • https://s3.amazonaws.com/bokofapig/tezapepekilej.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/fafsa_on_the_web_worksheet_20-_21.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/barbarian_5e_guide_2018.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_off0000e22a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE22A 4976 bytes
SHA-256: 023f94edcf99089450e975dae7bdb8c149f6682aea5362c28b3e526235d614e5
font_01_sfnt_off0000f32e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF32E 11192 bytes
SHA-256: 3583dffc1fe948359405080dd12b62f6c1e68e5a67b8fec01004e422a6d71aef