Malicious PDF — malware analysis report

Static analysis result for SHA-256 2097ef7a10ad4e12…

MALICIOUS

PDF

78.3 KB Created: 2021-03-15 02:19:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a4e6665b6b9aba69c49d0325fd52cb6d SHA-1: 2fcbb39703be67a8527d475d4dd02eda5b32eb24 SHA-256: 2097ef7a10ad4e12b9173a52302723ee9290b95cae775ac901c180760a485eec
96 Risk Score

Malware Insights

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

The PDF document contains embedded URLs that lead to suspicious domains, suggesting an attempt to trick the user into downloading further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the presence of external URIs points to a downloader or phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://ponafet.ru/award?keyword=learning+bootstrap+4+pdf+download
    • https://zudasejavezumuj.weebly.com/uploads/1/3/4/0/134017640/jilojovopowetibaje.pdf
    • http://mesikigodijope.mypressonline.com/articles_definis_indefinis_exercices.pdf
    • http://lotibamuzuti.scienceontheweb.net/anatomia_de_la_arteria_carotida.pdf
    • https://fosogizubosa.weebly.com/uploads/1/3/1/6/131637108/moguxirabopa_xunusonalena_bufojo.pdf
    • https://bowodazuludov.weebly.com/uploads/1/3/4/7/134700376/872b63134.pdf
    • http://ziwavabewite.66ghz.com/cambridge_exams_c1_with_answers.pdf
    • http://tifubuza.22web.org/vampire_diaries_characters_season_1.pdf
    • https://luzofimufabo.weebly.com/uploads/1/3/4/5/134590143/jabuk.pdf
    • http://boketizabujig.scienceontheweb.net/freckle_juice_movie_poster.pdf
    • http://movizopolu.medianewsonline.com/kondisi_geografis_indonesia.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://junigafef.epizy.com/61051519797.pdf
    • https://s3.amazonaws.com/tadevewuju/transformers_movie_bumblebee_toy.pdf
    • https://uploads.strikinglycdn.com/files/04d412a5-92ea-4f8a-8d03-8de1b3f1c62a/samsung_curved_smart_tv_55_inch_price_philippines.pdf
    • https://uploads.strikinglycdn.com/files/f88131f6-cb45-4d8c-8313-e0e39cd7b88e/nadajamirubosugu.pdf
    • http://xokopaxitake.rf.gd/493151922.pdf
    • https://s3.amazonaws.com/jojitagifuva/39847368109.pdf
    • https://uploads.strikinglycdn.com/files/0a145d92-7a1c-458f-8d59-ddf8d41e4e14/what_is_the_most_powerful_force_of_erosion.pdf
    • https://s3.amazonaws.com/gazijewevan/23950394309.pdf
    • https://uploads.strikinglycdn.com/files/c457850f-9df7-4c5b-b04d-07297eee57f8/95933659322.pdf
    • http://devimetoto.epizy.com/13213784140.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_off0000e80b.bin
975a153e05954e2498554c7eb3ec6827699d75efc5b4299da140c1d87e658ffd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE80B 5256 bytes
font_01_sfnt_off0000fa07.bin
6ae43d60c1595b7876892d2f7d0a5e6cf4f05488a644a85ceb97bddddd832157		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA07 10536 bytes
font_02_sfnt_off00011deb.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11DEB 4324 bytes

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