Malicious PDF — malware analysis report

Static analysis result for SHA-256 82f6819d35f65287…

MALICIOUS

PDF

76.7 KB Created: 2021-04-21 13:56:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 34bdcf705b9a2919083f9ce6ded0f518 SHA-1: 2a4eef1b8694464f38802cda29093f153da1a771 SHA-256: 82f6819d35f6528763e699e85be9daa7f126b13318e6fe28af67e839f7257ac4
104 Risk Score

Malware Insights

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

The PDF document contains a lure for downloading a movie, as indicated by the document body and the presence of external URIs. ClamAV detection and ML classification strongly suggest malicious intent, likely to deliver a phishing payload or malware. The embedded URL, https://jumiwimov.ru/strik?utm_term=warcraft+2+movie+download+in+tamil+moviesda, is a primary indicator of the attack's destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jumiwimov.ru/strik?utm_term=warcraft+2+movie+download+in+tamil+moviesda
    • https://newimogo.weebly.com/uploads/1/3/1/0/131070302/b5671.pdf
    • https://soranetibipuve.weebly.com/uploads/1/3/0/7/130738631/25b62a62409.pdf
    • http://sepoxudozixo.sportsontheweb.net/bwv_565.pdf
    • https://cdn-cms.f-static.net/uploads/4367941/normal_601752b3ad70c.pdf
    • http://wugegifa.getenjoyment.net/83349598652.pdf
    • https://kevelowomovozi.weebly.com/uploads/1/3/4/0/134012304/3158967.pdf
    • http://xuzerujagojagip.scienceontheweb.net/bosus.pdf
    • http://mizebojusur.mypressonline.com/34596202667.pdf
    • http://online-sistem.site/sanokoseseduwovapevijexigof.pdf
    • https://cdn-cms.f-static.net/uploads/4369313/normal_5fdc6903032c7.pdf
    • http://superheatbelt.xyz/overcoming_barriers_to_change9r3mj.pdf
    • https://cdn-cms.f-static.net/uploads/4483097/normal_60232dff09203.pdf
    • https://static.s123-cdn-static.com/uploads/4458827/normal_60073bef2269c.pdf
    • http://xokapik.mywebcommunity.org/29819039533.pdf
    • https://cdn-cms.f-static.net/uploads/4466154/normal_602da4da9254f.pdf
    • https://static.s123-cdn-static.com/uploads/4369333/normal_600043ecb1113.pdf
    • https://mokitapakajare.weebly.com/uploads/1/3/4/8/134885173/femuvag.pdf
    • https://cdn-cms.f-static.net/uploads/4384026/normal_5fe9808457c15.pdf
    • https://nixixufusolawig.weebly.com/uploads/1/3/4/8/134882604/3594110.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ca153043-adc6-48ae-87bf-30425c0832e3/introduction_to_thermal_and_fluids_engineering_solutions.pdf
    • https://uploads.strikinglycdn.com/files/06bb1eda-0e1c-4199-85fc-9b86748d107c/31985048561.pdf
    • https://uploads.strikinglycdn.com/files/b0a30d98-959b-4825-90e3-934ace40f454/wefenesuparajuduru.pdf
    • https://uploads.strikinglycdn.com/files/b4153b96-b765-4725-9e7d-25d3d3440a3c/govebarofik.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_off0000ee7b.bin
060027fd9fcbffdee6a18b451c6e144700eeed40640b5afeaab358ce3a340039		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE7B 5464 bytes
font_01_sfnt_off00010115.bin
a607c161299c8b622528281aeceb7573bea3d42679ec5e9aee151a8377ea3648		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10115 10460 bytes

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