Malicious PDF — malware analysis report

Static analysis result for SHA-256 66acebab44763924…

MALICIOUS

PDF

73.5 KB Created: 2021-02-26 08:30:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 0197b915946035334fa8a85c50fcffec SHA-1: f92e22c0888d3233f070493f4a12209cb5076bad SHA-256: 66acebab4476392499cf7694b815cdce1efb90440623394e136052d24f812297
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to programming universal remote codes, directing the user to a suspicious URL. ClamAV and ML classifiers flagged this PDF as malicious, indicating a phishing or trojan distribution attempt. The presence of embedded URLs and the ML detection strongly suggest malicious intent, likely to redirect users to a compromised site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/strik?utm_term=how+to+program+directv+universal+remote+codes PDF link annotation
    • http://nebofimanigi.sportsontheweb.net/13237818979.pdfIn PDF document text
    • http://revilokepudidu.mygamesonline.org/vovanaselusi.pdfIn PDF document text
    • https://cdn.sqhk.co/wifukatar/cRieIhf/iowa_80_truck_show_2021.pdfIn PDF document text
    • https://cdn.sqhk.co/zikufivol/hhdJygc/war_planet_online_mod_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzitomizaj/6jjidQ4/overdrive_premium_mod_apk_unlimited_money.pdfIn PDF document text
    • https://cdn.sqhk.co/rufebumu/c40PZ1b/58918539108.pdfIn PDF document text
    • https://cdn.sqhk.co/nezusoxe/ijyV4gJ/3025981668.pdfIn PDF document text
    • https://cdn.sqhk.co/rinugezig/uOidjca/14502279141.pdfIn PDF document text
    • https://cdn.sqhk.co/jisaside/ca3Dod6/82059278758.pdfIn PDF document text
    • https://cdn.sqhk.co/kibedutej/Ehifhjw/galaxy_warriors_anubis_action_figure.pdfIn PDF document text
    • https://cdn.sqhk.co/retepisej/ib0hbbe/30044779567.pdfIn PDF document text
    • https://cdn.sqhk.co/tipefimex/Dheicgg/dr_driving_2_game_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/bepemuno/jEha1X3/roluxaronizegaresuk.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/jolituzoji/marvel_avengers_spider_man_game.pdfIn PDF document text
    • https://s3.amazonaws.com/gajakelegeza/belkin_n600_db_setup_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/mipizaju/how_to_wind_bobbin_on_singer_machine.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/23208714763.pdfIn PDF document text
    • https://s3.amazonaws.com/dukavunivifa/indesign_newsletter_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fajonubinomeder/cancellare_account_instagram_da_android.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_off0000e3ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3EE 5504 bytes
SHA-256: ea66ac2c2e131745afae6959fd7ddf7571e8aa17ef505beb0602d3a6cf9eb7bb
font_01_sfnt_off0000f6aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6AA 9888 bytes
SHA-256: db6ddd54618644e41735abc334c181f92ccf01ebde447b2ca6c97222cd6bc4c0

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