Malicious PDF — malware analysis report

Static analysis result for SHA-256 70fbdd3213699007…

MALICIOUS

PDF

88.8 KB Created: 2021-03-10 02:30:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: b29388aca49faf6a7d297dbb07245329 SHA-1: b23c237e5c64eaa60eb408548825a800acbc88ce SHA-256: 70fbdd3213699007907c4adc89b0783eb3d8ba5aa134e47fd8044d98578db5a3
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://resalured.ru/aws?utm_term=they+say+i+say+4th+edition+exercise+answers PDF link annotation
    • https://cdn.sqhk.co/pidodalatip/cGhb0ic/94509752924.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421040/normal_5fe76d8440aaa.pdfIn PDF document text
    • https://cdn.sqhk.co/wazikunal/JcM9uid/90881261103.pdfIn PDF document text
    • https://cdn.sqhk.co/dabozijide/Vidhge1/84522173869.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413846/normal_6012ec1c0f16e.pdfIn PDF document text
    • https://cdn.sqhk.co/dufikibagi/7nbieDy/bipekutinaxapotuxemiragel.pdfIn PDF document text
    • http://begemotiks.space/airline_booking_system_gabriel_user_s_manual86s12.pdfIn PDF document text
    • http://vulgargirls.fun/angry_birds_2_movie_hd_1080p1e0x9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373519/normal_5fdc74e129a76.pdfIn PDF document text
    • http://damvglaz1.xyz/jamaxeguxelamoruvgwiu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465690/normal_600c43c1e404f.pdfIn PDF document text
    • http://mon-compte-cmb.best/waring_pro_deep_fryer_how_to_usey82p3.pdfIn PDF document text
    • https://cdn.sqhk.co/porevugaz/Yhgjfow/5418957609.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/formule_apertura_e_chiusura_lettera_inglese.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/integumentary_system_skin_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/nenaw.pdfIn PDF document text
    • https://s3.amazonaws.com/tevigotu/practical_driving_test_sheet_explained.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/video_converter_pro_apk_akingi.pdfIn PDF document text
    • https://s3.amazonaws.com/nunakixuma/gubofasomakimajenudan.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/matuziwisafifuwerifino.pdfIn PDF document text
    • https://s3.amazonaws.com/benuka/kasazikewonolinotapomud.pdfIn PDF document text
    • https://s3.amazonaws.com/xomepixo/42623862259.pdfIn PDF document text
    • https://s3.amazonaws.com/wumodukubaru/naming_branched_hydrocarbons_worksheet_answers.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011eec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EEC 5296 bytes
SHA-256: 2895e5ab045e99b50342f8985e466dd8c97c3698e3e70f5b8b27a43ca5e76ce2
font_01_sfnt_off00013107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13107 10672 bytes
SHA-256: 6798752a35a97cee232cda57750c7cac3c7daf83217049293e63ffa642250b5e