Malicious PDF — malware analysis report

Static analysis result for SHA-256 86852a85c26704db…

MALICIOUS

PDF

108.5 KB Created: 2021-03-24 17:18:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9e156efb83646868eb02aad0192572c4 SHA-1: a56f3fb15af40f6ad7dad9b411a68e014365f519 SHA-256: 86852a85c26704db76b3d18594490998353506b7fc4d0ce77921f94673a2ac28
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by heuristics and a machine learning classifier as malicious. The ClamAV detection further confirms its malicious nature. The document body, though heavily obfuscated, suggests a lure related to 'football uniforms', likely intended to trick users into visiting the malicious URL for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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://lozipotod.ru/123?utm_term=uw+football+uniforms+2018
    • https://cdn.sqhk.co/jelivapizivo/JhfRig5/minecraft_zombie_apocalypse_modpack_technic.pdf
    • http://dolijajoz.22web.org/ll_bean_flannel_sheets_review.pdf
    • https://cdn.sqhk.co/sirezozere/ajjjb8A/juwaribanafanabilusuji.pdf
    • https://cdn.sqhk.co/pigexebobe/jggpPqd/tibopobegedajagifudo.pdf
    • http://botojagi.iblogger.org/57346605514.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://merojupamen.epizy.com/broan_678_fan_upgrade_kit.pdf
    • https://s3.amazonaws.com/jinotugiwomo/85013618703.pdf
    • https://uploads.strikinglycdn.com/files/f5ad8e26-c01e-4911-b414-1374f9f0fdca/will_there_be_another_sex_and_the_city_movie_3.pdf
    • https://uploads.strikinglycdn.com/files/7919c844-24a6-4126-8d8f-9b7004a13254/the_missing_season_2_episode_2_review.pdf
    • https://s3.amazonaws.com/navoburarovada/kisireloxunigiza.pdf
    • http://gojetovumivet.epizy.com/ibm_cloud_essentials_final_exam_answers.pdf
    • http://bixowufufo.rf.gd/atomic_model_timeline.pdf
    • http://vobisobopimab.epizy.com/chandoo_excel_dashboard.pdf
    • https://s3.amazonaws.com/jemazejodep/gunutudidunilivaxesajuro.pdf
    • http://labutebumir.rf.gd/91346364296.pdf
    • https://s3.amazonaws.com/wixanarer/wisagisedegokimulad.pdf
    • https://s3.amazonaws.com/dewutexorob/48362268600.pdf
    • https://s3.amazonaws.com/peveziwoguxuzam/35008710533.pdf
    • https://s3.amazonaws.com/musokejixami/58622787887.pdf
    • https://s3.amazonaws.com/dewutexorob/ccmsetup_failed_with_error_code_0x87d00454.pdf
    • https://uploads.strikinglycdn.com/files/a884f8ef-cf5c-451d-9484-e45f6f158b4b/4070191136.pdf
    • https://uploads.strikinglycdn.com/files/e80449a4-28a9-4ac1-87e1-25262291a578/dupunixezeparizudukevexa.pdf
    • http://kuzoxutinilidog.rf.gd/16421007644.pdf
    • https://s3.amazonaws.com/tomamujuf/ruzevalipewuniwabo.pdf
    • https://uploads.strikinglycdn.com/files/9f5fb8ff-55b3-4bbb-b06a-7a733af66c3e/64877509823.pdf
    • https://s3.amazonaws.com/xedewofuretujo/85590258183.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_off00015904.bin
51292f6435b2cad29964e3e49632124c9f5c273be6c6ed9adbb1fd6a4fb38e9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15904 5420 bytes
font_01_sfnt_off00016b66.bin
265c2f7ca0213a9305d7e56130ac61bb56a29e6bd2d2a47963c849d72bf79d3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16B66 12312 bytes
font_02_sfnt_off0001957c.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1957C 4324 bytes

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