Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e2d196c12a776a1…

MALICIOUS

PDF

75.7 KB Created: 2021-03-17 09:34:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ea5b1a416f1d53a5e4f5d85ed83040de SHA-1: 5c41e24c71690e5162192d91e80d3762a3d3a189 SHA-256: 8e2d196c12a776a12524e8ef5a9a5d862c0b1133cf1dc1acf9a7b82cbf850c18
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, with a high risk score. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious payload. The document body, though heavily obfuscated, suggests a lure related to 'sign of the beaver questions pdf'. No scripts were extracted, but the presence of external URIs and the nature of the PDF detection indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jumiwimov.ru/strik?utm_term=sign+of+the+beaver+questions+pdf
    • https://pamuguvijokogag.weebly.com/uploads/1/3/4/8/134883264/5361924.pdf
    • https://static.s123-cdn-static.com/uploads/4368242/normal_5fde23fcbc997.pdf
    • https://kasezikibojeg.weebly.com/uploads/1/3/1/8/131871727/c306df.pdf
    • http://nat-fru.space/lubagefewovigetuniroee5tl.pdf
    • http://marketitaly.pro/basalt_rock_formation_columnareqans.pdf
    • https://dijodiruji.weebly.com/uploads/1/3/4/0/134097483/8857186.pdf
    • https://static.s123-cdn-static.com/uploads/4483104/normal_5fefb7e8cde0f.pdf
    • http://lady-bug.club/18201919832xlc1m.pdf
    • https://cdn-cms.f-static.net/uploads/4499972/normal_6027ad9c2e2f5.pdf
    • http://erkutungotu.com/9577371350of6vu.pdf
    • https://cdn.sqhk.co/petawelesup/heijlhi/81782478474.pdf
    • http://clebohets.xyz/soundarya_lahari_slokas_in_sanskritr4qt7.pdf
    • https://cdn.sqhk.co/juwafajem/q9ggcCr/fidget_cube_3d_printer.pdf
    • https://static.s123-cdn-static.com/uploads/4374838/normal_5fcf0e75b4b04.pdf
    • http://magazinrf.xyz/rainwing_wings_of_fire61mjf.pdf
    • https://cdn.sqhk.co/fipufose/C4ig0ja/nijogiguloze.pdf
    • https://wojanoxunoliwam.weebly.com/uploads/1/3/5/3/135394081/b4bef69f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bezegoluzose/mibewutobe.pdf
    • https://s3.amazonaws.com/medaliwifufugel/muposig.pdf
    • https://s3.amazonaws.com/foneniz/kabupagaturog.pdf
    • https://s3.amazonaws.com/zodererezuzuxi/cub_cadet_ltx_1050_transmission_drive_belt_diagram.pdf
    • https://s3.amazonaws.com/farezelof/repiwolorugodame.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_off0000e94e.bin
2f84ae11572b5c1c8a2705e2fdd4f2be1071f70c3c34a49bc064a76238b3dcfb
pdf-font-stream PDF embedded font (sfnt) at offset 0xE94E 5700 bytes
font_01_sfnt_off0000fca8.bin
1ca74004410f22099fcd8be3807935adca89df6d753617e03c29a659ee35df16
pdf-font-stream PDF embedded font (sfnt) at offset 0xFCA8 10368 bytes