Malicious PDF — malware analysis report

Static analysis result for SHA-256 9854fbd61a104d33…

MALICIOUS

PDF

321.1 KB Created: 2021-03-31 09:16:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a8767cc418f9409bfc09bfdd51c99ea6 SHA-1: 715dd8e1f405064f8e5d1ab6917f2340c8430154 SHA-256: 9854fbd61a104d339c2c0c9f8e15f600841cc90a814f898f16eb52c4be982ddf
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a domain that is not confirmed benign, suggesting it is used for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and the presence of an external URI suggest it may leverage embedded JavaScript to redirect the user to the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9658

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/award?keyword=concierto+de+aranjuez+tabs+pdf
    • https://cdn.sqhk.co/kujusiru/mLig7f9/61775570649.pdf
    • http://tamogulaganero.scienceontheweb.net/dichiarazione_di_atto_notorio.pdf
    • http://zugapuvu.mywebcommunity.org/ap_lang_essay_grading_scale.pdf
    • https://tomavibevojivow.weebly.com/uploads/1/3/4/0/134016690/38dc9.pdf
    • https://static.s123-cdn-static.com/uploads/4382771/normal_600727a106336.pdf
    • https://cdn.sqhk.co/peluxisomex/5jb1iXd/frases_tumblr_de_amor_namorado.pdf
    • https://cdn.sqhk.co/zewapoxi/Prih7gX/couper_en_deux.pdf
    • https://rawoxoduzipuk.weebly.com/uploads/1/3/2/3/132302868/ace399.pdf
    • https://zomuwobab.weebly.com/uploads/1/3/0/8/130873958/kikagezok-jenugivawovunam-jumapim-nopadukef.pdf
    • http://luxasireku.sportsontheweb.net/frank_miller_dark_knight_returns_cover.pdf
    • https://cdn-cms.f-static.net/uploads/4375528/normal_60435c1bea36f.pdf
    • http://vasugixoba.22web.org/java_vm_windows_10_32_bit.pdf
    • http://xijonofupawulo.mypressonline.com/80368019951.pdf
    • http://fuvufurewuf.iblogger.org/animal_farm_chapter_1_significant_quotes.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/c263be7c-0145-4089-ace7-3ad5a9589818/webubaxewuxi.pdf
    • http://zabetexukiked.epizy.com/accidentally_in_love_guitar_sheet_music.pdf
    • https://uploads.strikinglycdn.com/files/0d8ebbd5-4949-4546-a5e4-7c5790212a87/98309103150.pdf
    • https://uploads.strikinglycdn.com/files/0018d95e-a5ee-4d49-809c-fd700ff3b2ef/2nd_grade_singular_and_plural_nouns_worksheets.pdf
    • https://uploads.strikinglycdn.com/files/609ae6b8-142c-4e74-8eb6-ace5104de39c/universal_gravitation_worksheet_answer_key.pdf
    • https://uploads.strikinglycdn.com/files/de830644-786d-4c77-b153-cbbb2ad94e40/79726658131.pdf
    • http://nifiloxoburufi.rf.gd/angielski_od_podstaw_dla_dzieci.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_off000499b2.bin
3f3e2c14072b60315bcd5a95ea85dd4871a0ec75eeb82de5b67951b1e977781f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x499B2 5552 bytes
font_01_sfnt_off0004ad0a.bin
2636dfefe05158aa3ab02e32be17f653b07fd94e02bbd661b833c34a361c3f95		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AD0A 5288 bytes
font_02_sfnt_off0004bf16.bin
8936dcbc5d443a6592bd97a2686bc4763f28181206cd27ff9434aa00cf3a6a20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BF16 18868 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.