Malicious PDF — malware analysis report

Static analysis result for SHA-256 c22f18748d9afc3f…

MALICIOUS

PDF

66.5 KB Created: 2021-02-23 06:02:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bf9c3eb58dcc5da71a82b4b1f1a562c SHA-1: 7e240d7d3b597d630e4f3836e1fef5b13d498187 SHA-256: c22f18748d9afc3f8814c1dadd9fdb09a95e66fbcdf3bcd8351e1f0d08660362
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 phishing attempt. The document body, though heavily obfuscated, appears to be a lure for a service manual, likely to trick users into downloading further malicious content. Multiple external URLs are present, suggesting a distribution or redirection mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/wix?keyword=1978+johnson+outboard+service+manual
    • https://cdn.sqhk.co/fofotixoz/3vvwIjh/24704624736.pdf
    • https://static.s123-cdn-static.com/uploads/4470218/normal_5fefd5e3eec58.pdf
    • http://neojust.ru/guidelines_for_stroke_management_20208qfis.pdf
    • https://cdn.sqhk.co/bafujifi/iogdhJg/lion_king_tamil_movie_full_video.pdf
    • https://cdn-cms.f-static.net/uploads/4373508/normal_600ecdd712944.pdf
    • https://cdn.sqhk.co/satidaruxami/ihXBv5T/viboderuruvot.pdf
    • https://cdn.sqhk.co/wojusipi/mjfFche/walking_dead_cast_season_10_episode_16.pdf
    • https://static.s123-cdn-static.com/uploads/4484618/normal_5fcc0e4d42f03.pdf
    • https://static.s123-cdn-static.com/uploads/4470207/normal_5fc6cf6f4901c.pdf
    • http://positarinirib.22web.org/sedentarismo_en_adolescentes.pdf
    • https://static.s123-cdn-static.com/uploads/4491671/normal_5fdf000f6fe69.pdf
    • https://static.s123-cdn-static.com/uploads/4368474/normal_600438f5d2545.pdf
    • https://static.s123-cdn-static.com/uploads/4371244/normal_5fe01ee745560.pdf
    • http://polikarmonolit.ru/kixusolovovomiwsj9h.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://punegejofuj.epizy.com/57167585561.pdf
    • http://fibubaxuvuvixik.epizy.com/jaani_dushman_old_movie_songs_free.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c56e.bin
dcee0c1622d595e276985e0a7504e0510fcaff0fb10cd44bc238a17f35ff310f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC56E 5844 bytes
font_01_sfnt_off0000d939.bin
6ade4e252603ac5086e53f66a8fa66b21131e9f8a43c642cb40af819c2c79c4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD939 10520 bytes

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