Malicious PDF — malware analysis report

Static analysis result for SHA-256 be8d730211e95d43…

MALICIOUS

PDF

76.9 KB Created: 2021-03-10 18:42:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70c83a043810c94a9fb43c4565f7401f SHA-1: 9245f7373d482c3213ab95f21393f63840b4d63f SHA-256: be8d730211e95d431c47482b590f0110ead6de6b8a81e9e4e0e64c760b7b27f5
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to 'nipisod.ru', which is likely a malicious domain used to host a phishing page or download further malware. The document body, though heavily obfuscated, contains text related to a game, suggesting a lure to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://nipisod.ru/wix?keyword=sift+heads+world+act+6+hacked
    • https://cdn.sqhk.co/rabuvimi/aotPoaN/alienware_keyboard_software.pdf
    • https://cdn-cms.f-static.net/uploads/4497095/normal_6043905ba61c0.pdf
    • https://cdn.sqhk.co/sofizagumup/jL56Ogd/5569672964.pdf
    • https://cdn-cms.f-static.net/uploads/4492593/normal_5fdc3c23492dd.pdf
    • http://gujatun.iblogger.org/free_osha_forklift_safety_training.pdf
    • https://cdn.sqhk.co/goduwonon/gf5ijZK/billionaire_casino_slots_777_free_chips.pdf
    • https://cdn.sqhk.co/bezugisav/2ggAhiT/my_sprint._com_app.pdf
    • https://cdn.sqhk.co/dovoxukeni/jhicRhe/warifexatotekelobesezivo.pdf
    • http://putededojijubo.iblogger.org/28938512653.pdf
    • https://cdn.sqhk.co/galemojubemo/iggIOgj/guide_for_pes_2017.pdf
    • https://cdn.sqhk.co/goremujoz/RJ8bNs8/90253903539.pdf
    • http://govusosu.iblogger.org/xukapezew.pdf
    • https://cdn.sqhk.co/vixuwegijelo/ZzPxkf9/new_messenger_lite_2020_apk.pdf
    • https://static.s123-cdn-static.com/uploads/4406820/normal_5ff61741329bd.pdf
    • https://cdn.sqhk.co/nesorosuxim/Q7hegi2/jump_on_it_dance_tutorial.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kemopix.rf.gd/how_to_solve_maths_problems_by_tricks.pdf
    • https://uploads.strikinglycdn.com/files/67c4d03b-6e04-47b4-bd2a-6c84ad0c7b4c/tekonsha_90160_primus_iq_electronic_brake_control_installation.pdf
    • https://s3.amazonaws.com/lezopobigeza/77160309538.pdf
    • https://s3.amazonaws.com/ragejufa/nasazisonitivije.pdf
    • https://uploads.strikinglycdn.com/files/14d121e6-b888-4cac-a635-a9db8899e5d6/wadesezagirafokonokir.pdf
    • http://buzuvemujogumob.epizy.com/descargar_billetera_movil_banpro_apk.pdf
    • https://s3.amazonaws.com/venunamazozuzo/windows_10_software_crack_full_version.pdf
    • https://s3.amazonaws.com/zuxime/78676551948.pdf
    • https://uploads.strikinglycdn.com/files/e0ca05bd-567f-4066-b72d-7fd9673a14a6/robinhood_app_customer_service_phone_number.pdf
    • https://uploads.strikinglycdn.com/files/a4e98d29-7481-48c8-b057-c9c942c054e9/php_html_rich_text_editor.pdf
    • https://s3.amazonaws.com/nawosineromigi/empty_timeline_template_ks2.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_off0000effb.bin
61a1116aa49c25a8dde51f4447b40d03a813d999541b62ac9f23660a569a1329		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFFB 5520 bytes
font_01_sfnt_off000102d6.bin
8d292ef7c952d9f16f6a7d452be88423c5e34c89b968e8a0652076847947dea5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x102D6 10240 bytes

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