Malicious PDF — malware analysis report

Static analysis result for SHA-256 36be0fdd96a70cd3…

MALICIOUS

PDF

84.3 KB Created: 2021-03-11 15:00:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9cb9e17921dd1813ad3ff871c225fb52 SHA-1: 2b4861779cc5707093476a93d61ad20062a39df4 SHA-256: 36be0fdd96a70cd31195a918c05c5ff351cf89b081e9ee9abbb04f245c3ad9d5
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that masquerades as a search result for a specific topic, likely to trick the user into clicking it. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing or trojan PDF. No scripts were extracted, but the presence of an external URI and the document's structure suggest a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://gimoguvi.ru/strik?utm_term=montesquieu+spirit+of+the+laws+separation+of+powers
    • https://wugovokida.weebly.com/uploads/1/3/4/3/134319073/kodes-jadetobabiga.pdf
    • https://dopovubejaxow.weebly.com/uploads/1/3/4/0/134017692/8364e4.pdf
    • https://misoxuvisobi.weebly.com/uploads/1/3/4/6/134673897/1047039.pdf
    • https://sozogamawi.weebly.com/uploads/1/3/1/6/131636736/wupep.pdf
    • http://jenuxijaf.mygamesonline.org/baby_einstein_neptune_jumper_age.pdf
    • https://tidatulo.weebly.com/uploads/1/3/2/8/132815220/zopadozid-kegobelulujivu-lufip-xopatakigamif.pdf
    • https://zexawowa.weebly.com/uploads/1/3/6/0/136081798/8c03fa98b04a1.pdf
    • https://cdn.sqhk.co/vefapatape/ehgiwji/atom_zombie_smasher_soundtrack.pdf
    • https://cdn.sqhk.co/felolavap/jdyhgha/iphone_xs_notes_app_not_working.pdf
    • http://wejowadizabudex.mypressonline.com/zafuna.pdf
    • http://zikewexer.scienceontheweb.net/the_real_christmas_book_c_edition.pdf
    • https://cdn.sqhk.co/pujixefan/1hejiUF/gomamefitivajovir.pdf
    • http://sakulog.sportsontheweb.net/biopsychology_tutor2u.pdf
    • https://cdn.sqhk.co/gojinuma/hqLhfgh/ivory_ella_shirts_short_sleeve.pdf
    • http://latopivexud.iblogger.org/lonozovekavijogageku.pdf
    • https://cdn.sqhk.co/wovedajuraki/XS8qvle/puvagejawum.pdf
    • https://mubasaji.weebly.com/uploads/1/3/4/8/134846322/2591117.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://lununobasafino.rf.gd/calendar_invite_meeting_template.pdf
    • http://tozorameja.rf.gd/69594751061.pdf
    • https://uploads.strikinglycdn.com/files/5341a2c1-3f99-4dc6-9f1c-7bb4dfb9f564/ritter_m11_ultraclave_manual.pdf
    • https://uploads.strikinglycdn.com/files/7efce9b8-734e-4987-801b-3b106be99639/what_is_site_storage.pdf
    • http://ligiwekuxote.myartsonline.com/balanopostitis_en_nios.pdf
    • http://lajuloverebob.epizy.com/21030471737.pdf
    • http://nefamenevovuke.rf.gd/zobegejosiwugapunevidodo.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010c5a.bin
79bb556f79d26fd591575f8bbd71213a4f82cb18ed4b5f6d4e37dbd324152908		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C5A 5212 bytes
font_01_sfnt_off00011e2c.bin
b942209989ddbe0f10146f6e43294d7bfb5a7396771c29d22fb833bf18dea369		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11E2C 11104 bytes

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