Malicious PDF — malware analysis report

Static analysis result for SHA-256 245c6b119e97660a…

MALICIOUS

PDF

83.3 KB Created: 2021-03-21 03:02:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 206b38a232343d39f89a68169b0bc0ce SHA-1: 4bcfc35dbbca6243924df64e325d9141a26457c5 SHA-256: 245c6b119e97660a1cf2e8dcb604dc65e05e3d1f4e10f300c42a9b1d49e64988
156 Risk Score

Malware Insights

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

The file is a PDF that contains multiple suspicious URLs, with one heuristic specifically flagging an invisible link to a suspicious domain. The ML classifier and ClamAV detection strongly indicate maliciousness. The presence of embedded URLs and the nature of the heuristics suggest the document is designed to trick the user into visiting a malicious site or downloading further malware, likely as part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://pelibifir.ru/wix?keyword=young+dolph+major
    • https://xitirume.weebly.com/uploads/1/3/4/3/134392652/datefazozegojopov.pdf
    • http://zokupez.mygamesonline.org/criterios_alvarado.pdf
    • http://foyou.store/931024205428jwj.pdf
    • http://healthytrands.com/jcpenney_sewing_machine_7057_partsfqw8y.pdf
    • http://nakidki-alkantara.xyz/64589951415q1g11.pdf
    • http://ig-supportcenter.xyz/the_republic_of_plato_downloadtnbep.pdf
    • https://cdn.sqhk.co/kagumuzom/lOTyqjf/gun_ringtone_download.pdf
    • https://norotenivepele.weebly.com/uploads/1/3/4/0/134042349/medene.pdf
    • http://xapepinozex.22web.org/agneepath_movie_deva_shree_ganesha_song.pdf
    • http://medway24.com/distress_tolerance_skills_for_adultsadizn.pdf
    • http://gepexoliv.medianewsonline.com/basic_electrical_engineering_course_online.pdf
    • https://cdn.sqhk.co/kekumumaxow/n3jajgf/doom_eternal_weapon_mastery_trophy.pdf
    • http://rollernefritmassage.xyz/mtd_lawn_mowers_wikipediaeywzj.pdf
    • http://unreguezff.rest/285899213110mv0i.pdf
    • http://vk-settings-change.online/vijikiluxogzmbqp.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bunakakivukutus.epizy.com/19087783833.pdf
    • http://lonesopuw.onlinewebshop.net/biginaxewonuz.pdf
    • http://fuluxewamotate.atwebpages.com/kegoburexexutuxabexepar.pdf
    • http://tapoloferazuziw.atwebpages.com/d_d_5e_acquisitions_incorporated_free.pdf
    • http://jetetejev.rf.gd/61213572976.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_off0001069f.bin
a7cb45dea503436806b3cf57794b25a6af81d6cbed0cf4c4ce82ff1548e27fa1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1069F 5232 bytes
font_01_sfnt_off00011849.bin
c7326f190f14d97038541298c1e1796db55d8dc0ab2bbe7ab3d150047ef5fd2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11849 11668 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.