Malicious PDF — malware analysis report

Static analysis result for SHA-256 46fdcb24a7d32fa7…

MALICIOUS

PDF

72.9 KB Created: 2021-02-20 03:09:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 96ae713ca0f2fed3d7494a8135c2123c SHA-1: 4dc114e2c0f112c9233ba5cabb27fb2ca585ff66 SHA-256: 46fdcb24a7d32fa7b447bee2301766c4477501544a0e4967f8669dd15fd87624
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a critical heuristic firing for ClamAV detection. It contains an embedded URI pointing to a suspicious domain, likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to a script or report, aligning with spearphishing tactics.

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://leonvi.ru/123?utm_term=the+odd+couple+script+female+version+pdf PDF link annotation
    • https://cdn.sqhk.co/tigixexaxi/ibihjdZ/teluraki.pdfIn PDF document text
    • http://tehnoprom.org/31332833123oi9wg.pdfIn PDF document text
    • http://italywow.space/bapelagovigalafeq9.pdfIn PDF document text
    • https://cdn.sqhk.co/numovasovev/lviPjgy/xobaxazipoti.pdfIn PDF document text
    • https://cdn.sqhk.co/ditutafewaw/fwIifhg/wipote.pdfIn PDF document text
    • http://matroskin.space/formation_gratuite_pour_devenir_auto_entrepreneury45c0.pdfIn PDF document text
    • https://cdn.sqhk.co/fexilejedit/ohe6Cja/draw_tite_equalizer_hitch_manual.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/towutoginadivu/sample_performance_appraisal_report_employee.pdfIn PDF document text
    • http://pisobak.epizy.com/extravasation_guidelines_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/rumidatimiluvedagodimop.pdfIn PDF document text
    • http://vozekalazasof.rf.gd/38833138418.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/fiberglass_roofing_sheets_sri_lanka.pdfIn PDF document text
    • http://meridupomosim.epizy.com/zisifawu.pdfIn PDF document text
    • http://nawugem.epizy.com/nufakesekusipuf.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/35141677197.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/apple_app_store_for_android_apk.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d1ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1FF 5288 bytes
SHA-256: 64f73befa06d5d62d5e570a2a9a54e5ffd7eadd3871515d2595d2183713b969b
font_01_sfnt_off0000e3d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3D1 10708 bytes
SHA-256: 3ac7d53cd954fc28a81fc8d2d798ab8a635116eb19a0406eac827d75760353bb
font_02_sfnt_off00010897.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10897 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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