Malicious PDF — malware analysis report

Static analysis result for SHA-256 0197368eedf4b94f…

MALICIOUS

PDF

74.4 KB Created: 2021-02-17 02:56:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 209d292607a56a9f7b2330e890769465 SHA-1: 77797331b82ea87cdf9827876d87704664064441 SHA-256: 0197368eedf4b94f805cd111f5b8a3c55c08e8ecd2a0a133cabcb49ffeeec763
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, specifically as a phishing trojan. It contains an embedded URI pointing to 'bologen.ru', which is likely part of a phishing lure. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, potentially for credential harvesting or further payload delivery.

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://bologen.ru/aws?utm_term=cas+lp1000n+label+printing+scale+30+lbs+capacity+0.01lbs+readability PDF link annotation
    • https://cdn.sqhk.co/kinubowa/jaC0rUz/10967510967.pdfIn PDF document text
    • https://cdn.sqhk.co/pigexebobe/shjjeDy/45972944604.pdfIn PDF document text
    • http://salopkisa.website/devuteewgr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492246/normal_601d14b3bd7ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418791/normal_5fd60e96c63be.pdfIn PDF document text
    • http://fabulouss.space/xavevixoriwonuvejv5tp.pdfIn PDF document text
    • http://lastmarkt.ru/download_uphill_rush_7_waterpark_free_downloadyjabl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450511/normal_602c44a177bb5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457582/normal_5ff4e20a7f8ef.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/xepululejiwof/78357201025.pdfIn PDF document text
    • https://s3.amazonaws.com/bibejovixapis/netelevosanurike.pdfIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/damesurojeno.pdfIn PDF document text
    • https://s3.amazonaws.com/vosimalume/46502852676.pdfIn PDF document text
    • https://s3.amazonaws.com/xurixado/wojetopakaja.pdfIn PDF document text
    • https://s3.amazonaws.com/bubodeliza/google_android_version_market_share.pdfIn PDF document text
    • https://s3.amazonaws.com/bisegilupuf/ronobavap.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1BB 5776 bytes
SHA-256: 0fcf3bccc6c5f67ef1ba3fe9fe0cb86bec747f188e71c3720642918f2ebf7a65
font_01_sfnt_off0000f575.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF575 11332 bytes
SHA-256: 1e48ff236b29cc25ccba5878e032221b358b44a4ad18cdecbc8d04464107b00c

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