Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a60e1b0471acff1…

MALICIOUS

PDF

81.0 KB Created: 2021-04-02 13:50:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f2c0302e07ef840cf173555a39a703e8 SHA-1: 8ec67fdfd4580bf5fab265a478466ab1582181db SHA-256: 4a60e1b0471acff1d5e28a56a646c1bf99322fa8831561e690b43be0c820c612
104 Risk Score

Malware Insights

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

The file is a PDF document that contains embedded URLs and a heuristic firing for a download button lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the presence of external URIs suggests the document is designed to redirect the user to a malicious site or download a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://dafemum.ru/123?utm_term=practice+6.+1+classify+angles+worksheet+answers
    • https://zunarorukozem.weebly.com/uploads/1/3/4/0/134016655/f74a5bd2fc.pdf
    • https://cdn.sqhk.co/mowamukar/ihiadgg/jadujebit.pdf
    • https://cdn-cms.f-static.net/uploads/4484639/normal_605df4093ca29.pdf
    • http://poguzozod.sportsontheweb.net/lista_etf_borsa_italiana.pdf
    • http://vukufitu.mywebcommunity.org/stock_market_technical_analysis_chart_patterns.pdf
    • https://static.s123-cdn-static.com/uploads/4463785/normal_5fe42d1b8a428.pdf
    • https://xokubimekitogi.weebly.com/uploads/1/3/5/9/135986234/716c521bd6d68b0.pdf
    • http://fesurowejo.mywebcommunity.org/9099560873.pdf
    • https://cdn.sqhk.co/fopalixogul/PACAhiQ/mabisogimuwixa.pdf
    • https://static.s123-cdn-static.com/uploads/4471945/normal_5fc9c1add3779.pdf
    • https://lokawinopigu.weebly.com/uploads/1/3/2/7/132712062/migerag.pdf
    • https://cdn-cms.f-static.net/uploads/4384633/normal_601aae5b905c7.pdf
    • https://cdn.sqhk.co/soribivevi/oWkuVGF/top_best_animation_software_free.pdf
    • http://jutidewolojura.mypressonline.com/sezipikixonofukakig.pdf
    • https://nemusadepupozug.weebly.com/uploads/1/3/1/4/131453027/tubimob.pdf
    • https://cdn.sqhk.co/xororofomed/eYPO43q/91644636969.pdf
    • https://cdn.sqhk.co/pimidima/HbjajhF/87758197302.pdf
    • https://cdn.sqhk.co/togixulala/Vjhdjid/play_chess_online_free_no.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/d4ddf148-88de-4579-9bdc-fb1d5e95587f/a_different_mirror_takaki.pdf
    • https://uploads.strikinglycdn.com/files/d9f7e20c-0de9-43a7-8ef4-7be4786042bf/wekusox.pdf
    • https://uploads.strikinglycdn.com/files/0d37c9e7-cfaa-4a33-b57f-de4fc0232265/66693853672.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_off0000fd50.bin
00e7d9160a0943bc30189d27be0f96e75bd2b73bdfcd5e6c644f83e2fd7801f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD50 5640 bytes
font_01_sfnt_off000110a7.bin
e96b39ef16201f6db3df5353803ec6c1a0d7ac47e06a4772d7c3becc466ff70d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x110A7 11064 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.