Malicious PDF — malware analysis report

Static analysis result for SHA-256 be6580c62976ad0b…

MALICIOUS

PDF

111.5 KB Created: 2021-02-22 21:02:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dcd8057a7fe000f53214036750e441b0 SHA-1: e11091424cdb44fed118414a029f636dc62c314d SHA-256: be6580c62976ad0b9f209add98d420f4758d7e7a9684e6c8397987fbd2ee99aa
156 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it's a phishing lure, specifically requesting recovery secrets or private keys. The embedded URL points to a domain associated with malicious activity, likely serving as a lure for credential harvesting. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing attack designed to steal sensitive user information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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://maypoin.ru/wix?keyword=abandonment+recovery+workbook+pdf
    • http://rabota-plus.club/alchemist_book_storyy4c7u.pdf
    • https://cdn.sqhk.co/tejosepu/TgeeYhb/video_editor_for_youtube_free.pdf
    • http://ladyso.ru/88350715727whnjz.pdf
    • http://zasoremejoka.iblogger.org/21011988785.pdf
    • https://cdn.sqhk.co/woleparos/47hjgir/73219107063.pdf
    • https://cdn.sqhk.co/bipokagiti/v5igajj/71671230096.pdf
    • http://rentline.pro/total_launcher_key_v4_apkmb57w.pdf
    • http://nebo-baikala.ru/achalpur_amravati_weather_reportw3qay.pdf
    • http://bcpzonasegurape2-viabcp.com/8412991964b1dq8.pdf
    • https://cdn.sqhk.co/favejofu/dAheiaD/pig_io_pig_evolution_io_games.pdf
    • http://life50it.pro/suralanurafenapuxedamudw9kan.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zisoramemib.rf.gd/wimujazefevuwezipaxa.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015fd2.bin
60da962df1cbd2310d78928a2299fce5a1f50ff272b0e8013cb6445eca21751f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15FD2 5540 bytes
font_01_sfnt_off000172b3.bin
e074e22cc35cced74dd545c64465f3a329b8b3b29d1199bc08bf82824c68afd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x172B3 11572 bytes
font_02_sfnt_off00019a5f.bin
dfeebb44cf16d337e82d4774cb181783b8bf2674c4649c62238462e69ef025ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19A5F 16452 bytes

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