Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a28fc511833ca39…

MALICIOUS

PDF

79.7 KB Created: 2021-01-04 16:43:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 229503aca728a3f613b67984fd86a35f SHA-1: 8124b0fb1f758e985ccd182660b09700b8ba271c SHA-256: 9a28fc511833ca39e20c54c65ff6d72df39a394f0b833f8da6dac997d509703f
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by a machine learning classifier and ClamAV. It contains an embedded URL that impersonates an insurance claim form, likely intended to trick the user into clicking it. The PDF structure and embedded content suggest it's designed for phishing.

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://trafftec.ru/aws?utm_term=agria+dog+insurance+claim+form
    • https://static.s123-cdn-static.com/uploads/4403808/normal_5ff11e44e9e71.pdf
    • https://cdn-cms.f-static.net/uploads/4421477/normal_5fa01535ab9d9.pdf
    • https://cdn.sqhk.co/puberufibo/qhhfjdF/bepifewigigigidijer.pdf
    • https://cdn-cms.f-static.net/uploads/4475866/normal_5fd637eeda912.pdf
    • https://cdn.sqhk.co/dowufagit/UghjivA/fnaf_vr_help_wanted_song_by_jt_music.pdf
    • https://cdn.sqhk.co/dakubakasilu/ha5X2hg/tujigikunirono.pdf
    • https://cdn.sqhk.co/dorejewibiz/ibEhcgf/twitter_video_download_bot_telegram.pdf
    • https://cdn.sqhk.co/selijisede/ZgiBzLf/mods_mexico_euro_truck_simulator_2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/b1e7dcf3-4613-4877-a539-9baa518e701a/99085488162.pdf
    • https://uploads.strikinglycdn.com/files/4ad24674-9152-42c4-8b19-c81fa975a121/junezabup.pdf
    • https://uploads.strikinglycdn.com/files/8c2debd4-9601-46d7-95f0-a03a040e014e/29384548991.pdf
    • https://uploads.strikinglycdn.com/files/8eccfd32-8bae-4016-b5c1-aa4620b7a1d2/sal_or_the_120_days_of_sodom_1975.pdf
    • https://uploads.strikinglycdn.com/files/5bb167ea-48db-422f-8dae-8d92a5a5981f/cite_the_law_of_reflection.pdf
    • https://uploads.strikinglycdn.com/files/c940fa1d-319e-40d1-a71a-192741794eac/amazon_shopping_app_apk_download.pdf
    • https://uploads.strikinglycdn.com/files/150bcfd9-c73a-4301-b034-4633f45a5891/16953975202.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_off0000fd5d.bin
bd7d6590ffbd785759e70998dc3fb2832ea03ffddb89509f52bc2e3091c6448e
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD5D 5328 bytes
font_01_sfnt_off00010f65.bin
61934dc1f5778a6561dd5821d559ba663bc381ab8e7ac6dbb3d814e7b503fbff
pdf-font-stream PDF embedded font (sfnt) at offset 0x10F65 9976 bytes