Malicious PDF — malware analysis report

Static analysis result for SHA-256 be12d59ce4c73d07…

MALICIOUS

PDF

140.7 KB Created: 2021-03-02 15:39:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 7ada39b7bb063029108235fd304021f1 SHA-1: d3b768103b1b53a39c73c696c2edd8ac000da43d SHA-256: be12d59ce4c73d07d4b5d2f05e32c65c3b36c686b7b8961b315b3bbb49af29b7
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'ponafet.ru' suggests the document is designed to redirect users to a potentially harmful website. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://ponafet.ru/wix?keyword=burger+quiz+saison+3 PDF link annotation
    • http://questotzvezd.space/wavajekidanederopgsxd.pdfIn PDF document text
    • http://trynon.xyz/wedepimb4b5w.pdfIn PDF document text
    • https://cdn.sqhk.co/wememiguw/ihnijgc/nicki_minaj_husband_jail.pdfIn PDF document text
    • http://basiditdcf.space/flight_of_the_bumblebee_trumpetw378c.pdfIn PDF document text
    • http://belldiscount.ru/fobixomuwh9ewj.pdfIn PDF document text
    • http://requiremcgood.com/sewavigokafipagavhzawl.pdfIn PDF document text
    • https://cdn.sqhk.co/gixedomawa/iiTKhgX/degujakolisev.pdfIn PDF document text
    • http://merovew.xyz/how_to_write_a_science_fiction_novel_flowchartry9jb.pdfIn PDF document text
    • http://modernstyle.pro/50_ways_to_leave_your_lover_drum_sheetjetw5.pdfIn PDF document text
    • https://cdn.sqhk.co/zupololano/igvvigg/choi_game_toca_mystery_house.pdfIn PDF document text
    • https://cdn.sqhk.co/gidenateg/gdgchf1/drive_in_movie_theater_oregon_ohio.pdfIn PDF document text
    • http://ouily.xyz/89770391491g14sm.pdfIn PDF document text
    • http://kieverts.xyz/752645111l0b41.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gubilozav.epizy.com/54426395519.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/lg_top_load_washer_making_grinding_noise_during_wash_cycle.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/20454168242.pdfIn PDF document text
    • https://s3.amazonaws.com/dejazuvorira/building_permit_form_philippines.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/cool_hd_wallpaper_for_mobile.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/bressay_ferry_information.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_off0001ddce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DDCE 5208 bytes
SHA-256: b4a6937f88e8a68c6562e1c08fe62bc5f488bcbce97544fa1470c0692158f671
font_01_sfnt_off0001efa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1EFA3 17980 bytes
SHA-256: 8f4dfcda8ab8484d19ae473dfad5e30eb4284baa275f5124be22eeb04320c3e0

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