Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2257f4174d11ce9…

MALICIOUS

PDF

83.9 KB Created: 2021-03-29 03:19:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 10828e6177c9da8d9e48941f1ebbf3d5 SHA-1: 347b05c3636c748693ae2f8c6ca034fa7fd8c93a SHA-256: d2257f4174d11ce9064c92ec821aae9d5bb1286fcf8e43dc315af0b14059db06
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. The embedded URL and document body suggest a phishing lure related to 'powerpoint templates online'. Although no scripts were explicitly extracted, the PDF structure and external URI firings point towards a malicious document designed to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

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://botokaw.ru/123?utm_term=powerpoint+templates+online
    • https://cdn.sqhk.co/dapumexader/hgiiehD/34433842012.pdf
    • http://tasefuvakol.22web.org/gerodowurepabozoxatolot.pdf
    • https://cdn.sqhk.co/xutazazo/gmL3AKW/audio_pro_wireless_speakers_review.pdf
    • http://duxeluwezix.iblogger.org/tp-link_tl-mr3020_router.pdf
    • https://cdn.sqhk.co/perolurowona/yFhawij/gun_shot_mp3.pdf
    • http://difuwikikum.iblogger.org/acuerdo_final_de_paz_colombia.pdf
    • https://cdn.sqhk.co/buzosefif/zhi4gc2/bigfoot_hunting_simulator_online.pdf
    • https://cdn.sqhk.co/rumoligodo/1XjejhM/agen_voucher_game_murah.pdf
    • http://jasubizajimalep.iblogger.org/telapaxinon.pdf
    • http://vurupilinimini.iblogger.org/raxudiradefusaborezagapi.pdf
    • https://cdn.sqhk.co/dibitarebizu/Ahjiaic/66347066017.pdf
    • http://xakaderinetatu.mygamesonline.org/antibiotics_resistance_2020.pdf
    • https://cdn.sqhk.co/todiwapubu/jjfXOhg/fishing_guides_near_medford_oregon.pdf
    • https://cdn.sqhk.co/zimajigon/hBiergf/buwexodojoki.pdf
    • https://cdn.sqhk.co/rawatajizefu/jjjgegc/funny_happy_new_year_gif_2020_animated.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://rusuxagek.rf.gd/durujazadapujekelogofika.pdf
    • http://zaputizovirifo.rf.gd/brush_calligraphy_practice.pdf
    • http://bileperiwuxi.epizy.com/27153363524.pdf
    • http://sabukizazuse.epizy.com/trasformazione_centiare_in_metri_quadrati.pdf
    • http://vekozabebulufav.rf.gd/e_business_definition.pdf
    • http://juludiripo.myartsonline.com/xodunowawik.pdf
    • http://zelibigevuloxuj.epizy.com/rte_admission_form_mp_download.pdf
    • http://kapifotezuxevup.epizy.com/tricare_cover_pregnancy_pillow.pdf
    • http://tixelupaninaber.rf.gd/maxukavinuzorareli.pdf
    • http://gejulakan.epizy.com/14428205361.pdf
    • http://tuxefefili.epizy.com/61825691975.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ff72.bin
cf210b8549780fc569dfeb8965cd80ca278608e1cb715fb21a27c52cd07e116e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF72 4844 bytes
font_01_sfnt_off00010fcd.bin
ec21a361cbd11b3a832fe855d3baa867b396affd1e2277b744752a5517f57ce3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10FCD 10364 bytes
font_02_sfnt_off0001335b.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1335B 4324 bytes

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