Malicious PDF — malware analysis report

Static analysis result for SHA-256 6145ab42a8c96de8…

MALICIOUS

PDF

67.6 KB Created: 2021-02-08 04:39:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: a8c1a7d5fd2142fd872155d6735516ca SHA-1: 69891616e8d40c9c859737d8e3eca0a96d329cf9 SHA-256: 6145ab42a8c96de8b0dba03711ec5e44cc8b0fbd14eab6e764055bc072a99c04
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to 'return address labels template', aligning with common phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7851

Heuristics 3

  • 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
  • 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://maypoin.ru/aws?utm_term=return+address+labels+template PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4480402/normal_5fc9919de478f.pdfIn PDF document text
    • http://mangalvpodarok.ru/10235179736kpq0k.pdfIn PDF document text
    • http://fb-ig-violation.com/carillion_board_and_auditors_savaged_in_reportm25qd.pdfIn PDF document text
    • http://raftgjgr.space/10541535240rxzo4.pdfIn PDF document text
    • http://bbbbbbbbeeee.space/american_english_file_3_second_edition_teachers_bookasseu.pdfIn PDF document text
    • http://webpost.pro/373109403054n4ju.pdfIn PDF document text
    • http://helper-badges.com/70114489748ajouk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427103/normal_5ffd281da0b44.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/tufujifinobiro/7407544864.pdfIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/27792233305.pdfIn PDF document text
    • https://s3.amazonaws.com/wudibirewuduto/black_tie_formal_wear_irving_park.pdfIn PDF document text
    • http://magomodatibotu.epizy.com/bachelor_degree_in_business_short_form.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/adobe_audition_cc_2017.pdfIn 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_off0000dcd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCD7 5252 bytes
SHA-256: 7a770c41d363db5ce1291986c44a4389f7d2c3046a4a0654cda4aa4edce9f43d
font_01_sfnt_off0000ee9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE9C 10392 bytes
SHA-256: dbb3149ec65813dc5e47c3c5bac4c4a5bf96a2c4466a474a658416277f3b7f4a

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