Malicious PDF — malware analysis report

Static analysis result for SHA-256 41043fc8a44a60c6…

MALICIOUS

PDF

82.6 KB Created: 2021-03-15 11:25:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b8b685f5fefa33482f21d9cefa7c449 SHA-1: 6da97ff5ced76b353b0cd5ceabc92020f1fad71d SHA-256: 41043fc8a44a60c632c96c70812e4e300e113db759bf8b218afe378a25d2078e
104 Risk Score

Malware Insights

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

The file is a PDF document that contains embedded URLs, one of which is flagged as malicious. The heuristic 'SE_INVOICE_LURE' suggests the document's content is designed to trick the user into clicking the link, likely to download a second-stage payload. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://soxebez.ru/wix?keyword=equal+housing+opportunity+residential+rental+agreement
    • https://cdn.sqhk.co/soziwariru/ggDjiha/shoot_bubble_game_free_download_for_pc.pdf
    • http://alternativeinfluencenetwork.net/ponixefito39313.pdf
    • https://static.s123-cdn-static.com/uploads/4493282/normal_5fdf9c4074f78.pdf
    • https://cdn.sqhk.co/baluwofuk/M17jbic/energy_anti_stress_loops_online.pdf
    • https://cdn-cms.f-static.net/uploads/4417817/normal_60268e6832e92.pdf
    • https://cdn-cms.f-static.net/uploads/4383806/normal_60436b6ce3653.pdf
    • http://im-marceting.site/aviary_old_versionsg6p8.pdf
    • https://cdn-cms.f-static.net/uploads/4467950/normal_60116ee25ab91.pdf
    • https://cdn.sqhk.co/jibetovo/iiQPqCa/blender_v_2._74.pdf
    • https://cdn.sqhk.co/woberimi/g7ibggK/resident_evil_movies_reboot.pdf
    • http://uscovidcharts.com/57078858987aatxl.pdf
    • https://cdn.sqhk.co/pidodalatip/uicq7gg/idle_streamer_hack.pdf
    • https://cdn.sqhk.co/wevavagu/AieigKz/movie_catalogue_software_free.pdf
    • https://cdn.sqhk.co/dudumadopole/sgjgije/importance_of_assessment_in_education_essay.pdf
    • https://cdn-cms.f-static.net/uploads/4413865/normal_60467ac216039.pdf
    • https://static.s123-cdn-static.com/uploads/4379362/normal_5fc5955e50b26.pdf
    • http://prostotit.site/kufubeazekz.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/b1951c56-a3d7-4c28-a227-c2cf60e10808/is_a_2011_mazda_3_a_good_car.pdf
    • https://uploads.strikinglycdn.com/files/0b144f88-e455-423a-b5cf-12a796dfd1a4/lord_of_the_rings_second_movie_cast.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eda1.bin
1cafe17ca1c941c2a84b12ff9d6fa26c95752443bace6ac591cf6b3d8dcc3a26		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA1 5556 bytes
font_01_sfnt_off00010065.bin
34844ce5c300d8b4f12eda3f4d80b167186a4e8bbaf36ba1dbd64ca7cfb780c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10065 11204 bytes
font_02_sfnt_off000126fe.bin
2732c78df68b4531e26da51a256f0f9ab881cb8a96d1886ade34872d88eeece3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x126FE 16140 bytes

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