Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f6aea9ded93bc5b…

MALICIOUS

PDF

78.0 KB Created: 2021-03-14 00:31:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77a4fccea7da2613e620750a220b29fc SHA-1: 1763b7d4f3209f72db9a38840e4e89cb2986ce01 SHA-256: 2f6aea9ded93bc5b96d6a6815e39c56ec48965085d3b7b4f08c6c5e27b21f513
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL leading to a phishing lure disguised as an application form. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into downloading further malicious content. The presence of embedded URLs and the nature of the detected threat align with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://leonvi.ru/award?keyword=caste+validity+application+form+in+english+pdf
    • http://shothard.site/97188850523osgzj.pdf
    • https://static.s123-cdn-static.com/uploads/4374359/normal_5fc715379cdb3.pdf
    • https://nivujetomut.weebly.com/uploads/1/3/4/7/134753784/4537930.pdf
    • https://cdn.sqhk.co/sepagumal/hcgh2jj/asphalt_nitro_car_racing_game_download.pdf
    • https://benezome.weebly.com/uploads/1/3/5/4/135400217/3132826.pdf
    • http://raliwoze.iblogger.org/irac_method_of_answering_law_questions.pdf
    • https://cdn.sqhk.co/zifuvifiweva/ha0SBgg/netflix_christmas_movies_2019_kurt_russell.pdf
    • https://static.s123-cdn-static.com/uploads/4411691/normal_5fc7f4ce9339a.pdf
    • https://vusuzawemuli.weebly.com/uploads/1/3/0/7/130775102/4a1ed32e8.pdf
    • https://static.s123-cdn-static.com/uploads/4371025/normal_5fc898ca2d0cd.pdf
    • http://rmk4sale.xyz/gamedesign_grow_cube20hsy.pdf
    • https://cdn.sqhk.co/xovujiroveg/fjjZJhc/my_puppy_has_a_runny_nose_and_eyes.pdf
    • https://jebapawobukil.weebly.com/uploads/1/3/4/5/134521284/zupeninaka.pdf
    • http://agreevudb.rest/lokelanuxisavixumugmk1e.pdf
    • http://copyrighthelpcentral.com/secondary_3_chinese_textbook_online9ye3a.pdf
    • https://tobevasisutigi.weebly.com/uploads/1/3/0/8/130814636/parirovimolapedo.pdf
    • https://zikazofikadit.weebly.com/uploads/1/3/0/7/130739129/d3c1e.pdf
    • http://usejus.pro/apk_mirror_android_auto_4._5._5928srlsp.pdf
    • https://cdn.sqhk.co/nepofigiper/fhhtGjG/87621383400.pdf
    • https://cdn.sqhk.co/fezemepusap/JidwXMF/i_remember_you_was_conflicted_meme_meaning.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://mimenevav.epizy.com/holmes_air_purifier_mini_tower_review.pdf
    • http://sapidobilebag.epizy.com/bioscope_marathi_movie.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_off0000e52c.bin
0b812ca043c43e50126d58a9e6caa5ee71ae71dbd3ffb169c694f02347538e9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE52C 5540 bytes
font_01_sfnt_off0000f7e0.bin
5bfa26f04bbc5d7ca622a32672485291382eae640214f432dcfb11a1efe5422f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E0 10572 bytes
font_02_sfnt_off00011c2a.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11C2A 4324 bytes

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