Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fe61f0ae89c914b…

MALICIOUS

PDF

87.2 KB Created: 2021-05-12 12:05:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 933dd135c0a7d6450461f44bf8ecfefd SHA-1: 4c04676b491c1a1a02d817db833cc123d2d87e6e SHA-256: 2fe61f0ae89c914ba39be7a3c7de0989ae956c65f31f35f6f47d97c1ef30e96e
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to suspicious domains and appear to be part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to movies, likely to entice users to click on the embedded malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://taxiparga.com/wp-content/plugins/super-forms/uploads/php/files/ddecfb11d268871d3d9f0442923e5190/95035992957.pdf
    • http://www.associatedomains.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607abe8d9947e---ridobuxasutifa.pdf
    • https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/ccce6aeab6a79ffe4af1104a5e64e047/kobisipuzusazanazudu.pdf
    • https://www.lightingsolutionsinc.net/wp-content/plugins/super-forms/uploads/php/files/0efc1d27880d506b7963b27e807f3634/rilulosugazuripo.pdf
    • http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/a193b8e14ef3011224fb76e71d01a7cc/zigepofinoxazalisutum.pdf
    • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609b0d794839a---39294277616.pdf
    • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/d5cf033688333b839b08c4f42a0e965b/rojabeveverumexega.pdf
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/d0e3b50d48062b50427354e06046a97a/75131995770.pdf
    • https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/535d6afdac91399107cb615859b8fe70/51711635754.pdf
    • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609abce33eba3---badelapenivoj.pdf
    • https://annjulieskarpmo.com/userfiles/file/fofovovifumasenav.pdf
    • http://sunjewelsonline.com/userfiles/file/62972004955.pdf
    • http://www.aadhar-interior.com/userfiles/file/2642106392.pdf
    • https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fc81587008---81565440781.pdf
    • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160779caa5659d---48522524011.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=movies+counter+tamil+film
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010907.bin
9302ac997c5e2a3e0c7272d8fc034d21f916891a6d7fd7d5b636e1e4713be3ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10907 4972 bytes
font_01_sfnt_off000119e0.bin
9f9f6881549257083752f8ac0d4cbd3c58d0ee240519c9fd5389c1c37d2af5be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x119E0 11764 bytes
font_02_sfnt_off000141da.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x141DA 4324 bytes

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