Malicious PDF — malware analysis report

Static analysis result for SHA-256 d91e6978aa13c60f…

MALICIOUS

PDF

80.1 KB Created: 2021-03-30 17:11:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5207710ae324776f41009721e22931af SHA-1: cf208d1759922269a3959211b81729fa02675294 SHA-256: d91e6978aa13c60f4baf50d05259c8149815f0404d7a0675a69d6741a1fe2054
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website disguised as a search result. This URL, 'https://leonvi.ru/wix?keyword=how+to+conceal+outdoor+security+cameras', is likely part of a phishing or social engineering attempt to trick users into visiting a malicious site. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wix?keyword=how+to+conceal+outdoor+security+cameras
    • https://nodekisoguzila.weebly.com/uploads/1/3/5/3/135313862/358ff73e4cd28.pdf
    • http://voirlo.xyz/how_to_set_up_a_woods_timer421jd.pdf
    • https://cdn-cms.f-static.net/uploads/4490724/normal_6043bcb1d242a.pdf
    • http://bupro.asia/pathfinder_roleplaying_game_advanced_race_guideu5bbd.pdf
    • https://fafafupoxojamu.weebly.com/uploads/1/3/5/3/135350358/loludosuno-wilisibojinewus-jokudabojitas-kexaki.pdf
    • https://cdn-cms.f-static.net/uploads/4374189/normal_605c0c162e914.pdf
    • https://bopugokux.weebly.com/uploads/1/3/4/9/134901566/abc2e8f35ff.pdf
    • https://wovovude.weebly.com/uploads/1/3/1/3/131397940/winaxilisazuta_xagetosolupufar_koxasaxisunutif_majup.pdf
    • https://lovebaxubifutu.weebly.com/uploads/1/3/4/3/134322000/setiwarunutegobanal.pdf
    • http://7evenrp.ru/how_do_you_cite_an_online_magazine_article_with_no_author_in_apan2u2n.pdf
    • http://leoidet.xyz/how_to_clean_a_lg_mini_split993v2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/loxopudizus/fender_champion_40_amp_settings.pdf
    • https://s3.amazonaws.com/risalenefazozo/turovukijebefazuvifozavop.pdf
    • https://uploads.strikinglycdn.com/files/8388d07d-b644-4f87-844e-cd99985f3ef0/86977748965.pdf
    • http://jexukavelewin.rf.gd/how_to_make_your_cat_and_dog_best_friends.pdf
    • https://uploads.strikinglycdn.com/files/7f1d5348-48f1-4cb5-ab95-f7ca7d7caeb7/vizio_32_inch_smart_tv_remote_code.pdf
    • https://s3.amazonaws.com/sumesawoxajew/50242998385.pdf
    • https://s3.amazonaws.com/luworizesupox/72060409192.pdf
    • https://uploads.strikinglycdn.com/files/3e899442-780a-4e18-8acb-0deccb958ca0/political_science_books_2020.pdf
    • http://sawelisibov.rf.gd/chess_rush_guide_fr.pdf
    • https://uploads.strikinglycdn.com/files/7fb24d2a-eb7d-4677-8d95-e34f8229c490/87200655149.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_off0000fc3b.bin
863c873d701e9e02967bd010d10e5657f02240c43f524b5ae3247790044fc7ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC3B 5240 bytes
font_01_sfnt_off00010e08.bin
0bbf4d098ecc64eebee90e57a68a5b3839f7c0cdb27d64d8590d71703fad68fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E08 10940 bytes

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