Malicious PDF — malware analysis report

Static analysis result for SHA-256 453f842c205bf79b…

MALICIOUS

PDF

69.9 KB Created: 2021-01-12 14:10:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 178fc3bd23e2e098e8f1f2c45419c65c SHA-1: b30e288aee8dc0712811333f8dc82a365c36ff07 SHA-256: 453f842c205bf79b7c0f78c211fe518e09f3d772d8cfab74cd858e362f405cd7
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though partially corrupted, suggests a lure related to Canadian citizenship, aligning with common phishing tactics.

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://traffset.ru/aws?utm_term=canadian+citizenship+questions+and+answers+2019
    • https://site-1173386.mozfiles.com/files/1173386/8902145181.pdf
    • https://cdn-cms.f-static.net/uploads/4374372/normal_5f8a19987607f.pdf
    • https://cdn.sqhk.co/badaxiloru/hjpig1V/alien_blackout_review.pdf
    • https://static.s123-cdn-static.com/uploads/4402710/normal_5fe34f61b1a4b.pdf
    • https://cdn-cms.f-static.net/uploads/4496607/normal_5fc0eb8bb30a6.pdf
    • https://cdn-cms.f-static.net/uploads/4467032/normal_5faaeded22dcc.pdf
    • https://cdn.sqhk.co/goluxewimabu/fhgicgh/tanoxurawasovafefonulosad.pdf
    • https://site-1083679.mozfiles.com/files/1083679/jefuduwedos.pdf
    • https://cdn.sqhk.co/ralapogifur/Y2hbgh9/3720541727.pdf
    • https://cdn.sqhk.co/bitaxukezor/ichcjbY/my_little_pony_color_by_magic.pdf
    • https://cdn.sqhk.co/sofaxuleruri/hePjeeC/69246358421.pdf
    • https://cdn.sqhk.co/minamojazi/4V2ib7N/43849052447.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/baxekojojexusol/beyond_good_and_evil_hd_trophy_guide.pdf
    • https://s3.amazonaws.com/zevutebulaworel/ielts_writing_answer_sheet_size.pdf
    • https://s3.amazonaws.com/mefadedosuw/jumajenanowarowafufiwo.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_off0000d1fb.bin
c690505678aaec37d8c54c0a71b48f9bff5a53a71d258bc7124311d9a3e183ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1FB 5784 bytes
font_01_sfnt_off0000e5bf.bin
7474f883d02dd79df4925473a827e9f1357a9255f46f02a70dea214d2bc2e052		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE5BF 10820 bytes

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