Malicious PDF — malware analysis report

Static analysis result for SHA-256 72f13ee25b089b31…

MALICIOUS

PDF

67.6 KB Created: 2021-01-17 11:04:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 292727d253d69f10a4952e809bcd7d4a SHA-1: d4045c124fe5ad8ff4b63fe519233bc6e0d8948c SHA-256: 72f13ee25b089b31c417a82fd1e6d99633e3b9578d9d8160681d714e0dac1090
94 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URI pointing to a suspicious domain, traffset.ru. Heuristics indicate it is a phishing trojan, and the ML classifier also flagged it as malicious. The document body, though heavily obfuscated, suggests a lure related to 'online teacher interview questions and answers'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8464

Heuristics 3

  • 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
  • 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://traffset.ru/aws?utm_term=online+teacher+interview+questions+and+answers+pdf PDF link annotation
    • https://cdn.sqhk.co/pevelefotuve/ehe8gdI/vabida.pdfIn PDF document text
    • https://site-1175953.mozfiles.com/files/1175953/sirezif.pdfIn PDF document text
    • https://cdn.sqhk.co/makubeku/btifhje/kojiwopimapufiwerufexef.pdfIn PDF document text
    • https://cdn.sqhk.co/tititafoza/highihd/96100784448.pdfIn PDF document text
    • https://cdn.sqhk.co/fekigimuzib/d2QNpwd/vamelop.pdfIn PDF document text
    • https://cdn.sqhk.co/miwiwefe/iwZhejf/rozuzezake.pdfIn PDF document text
    • https://cdn.sqhk.co/saboxiwago/ohbhghg/tisijokiroluralebufudo.pdfIn PDF document text
    • https://cdn.sqhk.co/muruwake/ZXAgggd/56774599936.pdfIn PDF document text
    • https://cdn.sqhk.co/foroboreb/hef0jgy/zekovumukalegepema.pdfIn PDF document text
    • https://cdn.sqhk.co/pufowuvikij/L1gftgg/11767039362.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/gupojakami/promissory_note_template_payment.pdfIn PDF document text
    • http://sakigekoxigukil.epizy.com/meningite_et_meningo_encephalite.pdfIn PDF document text
    • http://fuxufotab.epizy.com/resume_for_teacher_job_application_format.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/57602076884.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/kensington_park_elementary_uniforms.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/gagukepepudu.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/miya_bhai_song_dj_remix_mp4.pdfIn PDF document text
    • http://dofomexikokubeb.epizy.com/case_study_format_for_nursing_students.pdfIn PDF document text
    • https://s3.amazonaws.com/mejados/44213433487.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f16d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF16D 5548 bytes
SHA-256: 02e5643239611970b8c9d6a0ecf18126fd12e6eeeb63410d2f7e42a310e1ad6e

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