Malicious PDF — malware analysis report

Static analysis result for SHA-256 eee489b02f81ebf1…

MALICIOUS

PDF

69.1 KB Created: 2021-05-13 14:28:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f7f0b5203f8a2e4e01166cd180e1598 SHA-1: 74375bffb2811dc9bee5bf59aa843bd113676a9d SHA-256: eee489b02f81ebf1bced2fd23fea7e74ac18ee96b2facc3e7686da594ae83d3d
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, indicating a phishing or malware distribution attempt. The embedded URL points to a PDF file hosted on a suspicious domain, likely serving as a lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to trick users into downloading further malicious content.

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://www.groupenahno.com/wp-content/plugins/super-forms/uploads/php/files/lseik6c8khqoa2leee87joth9c/deruzowudofojaxuku.pdf
    • http://billsky.ee/files/file/23714907522.pdf
    • https://aprilboya.com/userfiles/file/bisizeninowebugeri.pdf
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/112df11ecb8742ecd8a8e362a75601a7/81711406232.pdf
    • https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/723c1e0b7f6f4de9e248adb0d44b2408/93056360904.pdf
    • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609460bca38ee---nenetodi.pdf
    • http://bajajsports.com/userfiles/file/vumugimafuvamibenege.pdf
    • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/c6dd5abfb4b8a7d5ed7ea6819db0303b/kuzebilejik.pdf
    • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/1mhdrn6eonpbih5r6soi92fivm/69291386252.pdf
    • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160850248632b2---58796735187.pdf
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/o091q1n9aephklj1e34el7hvq1/mubare.pdf
    • https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160863a7c7ebaa---videvamosaso.pdf
    • https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160780cebe6e41---ruwirelasoda.pdf
    • https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/pu3kjv30fb296qr8vrckqr9pth/wawul.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=wonderful+tonight+lyrics+and+chords+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_off0000cd71.bin
f56813218072f647c74c5669b33205c083609cf8dbd1498f639b45a3ba73e419
pdf-font-stream PDF embedded font (sfnt) at offset 0xCD71 5532 bytes
font_01_sfnt_off0000e057.bin
096af49475d7ab1dae80dbbb0b7075e53941d30069cdbcf53ea27736876e6842
pdf-font-stream PDF embedded font (sfnt) at offset 0xE057 11116 bytes