Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc4b632e4fab3e2a…

MALICIOUS

PDF

74.2 KB Created: 2021-02-20 17:18:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: d9c8bb490863d5caef7a57abaf0f2c94 SHA-1: fe9f4d7f91b6591507f0435d777a140bca297b11 SHA-256: fc4b632e4fab3e2a7f62877e5188a8dc3e1269d6643f3457ce7ee1d6dcee9b53
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URL that leads to a suspicious domain, likely intended to trick the user into clicking it. The document body, though heavily obfuscated, contains text that appears to be a lure related to diet, suggesting a phishing or social engineering tactic.

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://jottigo.ru/aws?utm_term=do+vegetables+count+as+carbs PDF link annotation
    • https://cdn.sqhk.co/poxufape/icUjcC0/fetewabalixebuzi.pdfIn PDF document text
    • https://cdn.sqhk.co/dolafita/eiaeLnb/towomupojexujixevanami.pdfIn PDF document text
    • https://cdn.sqhk.co/fepefudasor/vlURgdW/7779096459.pdfIn PDF document text
    • https://cdn.sqhk.co/kezixowog/jdGifjj/49531859002.pdfIn PDF document text
    • http://fimosabu.iblogger.org/browsec_vpn_premium_crack_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/mevexobuzur/iduLjcL/safuja.pdfIn PDF document text
    • https://cdn.sqhk.co/padasagam/BUiiicS/now_wallet_app.pdfIn PDF document text
    • http://gufufisazikoja.iblogger.org/asterisk_pbx_windows_7.pdfIn PDF document text
    • https://cdn.sqhk.co/rawerusiwala/sfynrjc/celestial_pearl_danio_tank_size.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/wutogugej/kagowukarisisetelolojeni.pdfIn PDF document text
    • https://s3.amazonaws.com/kalanejaxutilif/decimals_on_a_number_line_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/zutezokanakib.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/29493741894.pdfIn PDF document text
    • https://s3.amazonaws.com/gavexilatuvitaz/gogok.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/asco_breast_cancer_guidelines_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/gcc_healthcare_industry_report.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_off0000e651.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE651 5168 bytes
SHA-256: 1d48c31a2377f7d57335f73dffe5cbb275cd88c5fc309eb6eb6ccee08d63d2cf
font_01_sfnt_off0000f803.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF803 10500 bytes
SHA-256: 8fe81304206e6fab2258f4f3d7b2a49dd9508f71dbc941c6d34515eb217fc9ec

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