Malicious PDF — malware analysis report

Static analysis result for SHA-256 d69c397d13781701…

MALICIOUS

PDF

78.3 KB Created: 2021-03-08 12:10:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b2a9586f57ccff85dd730b7930507d50 SHA-1: e76905e79663100dfb6c3f0b29d68c9c6a6563ec SHA-256: d69c397d13781701584d8d2ea5528957180de35e6c5dd437e5e2b86980995523
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL that likely serves as a download source for a secondary malicious artifact. The document body, though heavily obfuscated, suggests a lure related to an 'Aldis application form'. No scripts were extracted, but the presence of external URIs and the overall detection profile points to a phishing attempt.

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://soxebez.ru/123?utm_term=aldis+application+form
    • https://kepopuratitub.weebly.com/uploads/1/3/4/3/134378339/lumudomimuf.pdf
    • http://wudazex.sportsontheweb.net/wofisapipifupikoguxa.pdf
    • https://cdn.sqhk.co/fovomesit/i2QigfJ/66716227585.pdf
    • https://cdn.sqhk.co/zukuxenopo/zHIQihj/photomath_app_price.pdf
    • http://com-servers.online/29695456777ivxky.pdf
    • https://jilarikogezinuv.weebly.com/uploads/1/3/0/9/130969280/56ea0.pdf
    • https://cdn.sqhk.co/gojinuma/aidP5ie/3d_archery_products.pdf
    • https://cdn.sqhk.co/jakibefivi/5iaMghl/84436772231.pdf
    • https://cdn.sqhk.co/bemaxopig/TgfpOha/32635635834.pdf
    • https://cdn.sqhk.co/nafolekuge/h7jhhja/74557835612.pdf
    • http://redizesigum.iblogger.org/rudadonewetalelanadebimek.pdf
    • https://cdn.sqhk.co/ninasodivofi/hhEjaLx/funny_sms_ringtones.pdf
    • http://pressit.space/electrical_engineering_trade_schools_nyckrtzj.pdf
    • https://vimuxinifol.weebly.com/uploads/1/3/5/3/135348687/a73a2be91f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://gajopule.myartsonline.com/38540369550.pdf
    • http://nivigiwaragere.epizy.com/gre_issue_and_argument_essays.pdf
    • http://bagugexasorip.myartsonline.com/52276668732.pdf
    • http://wevugovig.epizy.com/best_fan_setup_for_nzxt_phantom_530.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_off0000f406.bin
198e33dc4118a891da0dcd98a8c7dde13500bb2970e0db99bbbf36ba817e264d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF406 5288 bytes
font_01_sfnt_off000105f1.bin
6c4c7fc3a7c3676c8724f253cf4c5a14ad1097aa1309a691de878a21b42ac4d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x105F1 11264 bytes

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