Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a9d209a26eb7853…

MALICIOUS

PDF

83.4 KB Created: 2021-01-11 20:24:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 59fbed2d172d161c117edd4aa8c0305f SHA-1: 90085c0718c940f47df7c2c1fc0801472a48d0c3 SHA-256: 7a9d209a26eb7853dee280d57e24a47e2ecf7ed6f0d194071fcdee55d6799818
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://trafffi.ru/123?utm_term=ranku+darbo+papuosalai+su+naturaliais+akmenimis PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4448137/normal_5fac51b7bb0ba.pdfIn PDF document text
    • https://cdn.sqhk.co/xejudawadoni/GKhemji/komixibopoz.pdfIn PDF document text
    • https://site-1083884.mozfiles.com/files/1083884/50653689909.pdfIn PDF document text
    • https://cdn.sqhk.co/kaxovugefulo/Libgjnt/rubukofogu.pdfIn PDF document text
    • https://site-1225924.mozfiles.com/files/1225924/59781604696.pdfIn PDF document text
    • https://cdn.sqhk.co/nibidawe/UKiaEK8/discount_code_for_groupon_uae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393904/normal_5faafdfaa84ed.pdfIn PDF document text
    • https://cdn.sqhk.co/kevejonob/LvegiSG/evil_rising_song.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470412/normal_5fce509ad59a5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383807/normal_5f9a2848dbe52.pdfIn PDF document text
    • https://site-1178650.mozfiles.com/files/1178650/46159660588.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/bogeguva/mejor_antivirus_tablet_android_gratis_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/voduxesodobikodinufogilep.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/dotibanimuti.pdfIn PDF document text
    • https://s3.amazonaws.com/lomiwexuva/nobova.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fac9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAC9 5200 bytes
SHA-256: 9caeb57a6e331ccae7c601c7624b1f96869e5037a13db3e2d841d3b8d15ee99e
font_01_sfnt_off00010c52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C52 11708 bytes
SHA-256: 7245c116b555e69c46c949a884cad6d9d67a4a8a2adad9a02a1c7ba9fd03d5f5
font_02_sfnt_off00013083.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13083 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3