Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9400b24ca397442…

MALICIOUS

PDF

80.1 KB Created: 2021-03-09 06:25:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 460706a9d8fdf8cff55d9696340e3410 SHA-1: 7f51450d1bad26759f24b72399c63eeab89d62c9 SHA-256: b9400b24ca397442924b470411b90614582932f6c30fde7495082f016518c53a
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URI pointing to a malicious domain, likely intended to trick the user into downloading a payload. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://dafemum.ru/123?utm_term=adverbs+of+manner+comparison+exercises+pdf
    • https://cdn-cms.f-static.net/uploads/4470696/normal_60221d15ba846.pdf
    • https://static.s123-cdn-static.com/uploads/4368466/normal_6003d36d9d086.pdf
    • http://xilenemivagola.mywebcommunity.org/66182708416.pdf
    • http://vevapefin.sportsontheweb.net/13727629983.pdf
    • https://tapogizixe.weebly.com/uploads/1/3/4/8/134897788/c20ae.pdf
    • http://pinegobojefo.getenjoyment.net/98642764054.pdf
    • http://runojiwum.getenjoyment.net/old_huckleberry_finn_book_value.pdf
    • http://zovolexune.sportsontheweb.net/67683276982.pdf
    • https://static.s123-cdn-static.com/uploads/4464732/normal_5ffd45b3a58c4.pdf
    • https://static.s123-cdn-static.com/uploads/4496381/normal_5fcf0837680da.pdf
    • https://cdn-cms.f-static.net/uploads/4385417/normal_5fea1fcc5e54e.pdf
    • https://fewefemuge.weebly.com/uploads/1/3/4/3/134372507/derovada-jimuzuvezepid-kokevakomedi.pdf
    • https://mofaxogarapew.weebly.com/uploads/1/3/4/7/134771612/zikubelig.pdf
    • http://nopotaz.medianewsonline.com/1393835455.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://f039f7e9-c7fa-441d-bf3d-2f0e35d6be10.filesusr.com/ugd/80685d_bad66f9c4d184504ab0e2583e01df559.pdf?index=true
    • http://xazopufegi.onlinewebshop.net/47774855158.pdf
    • http://gixarewujedel.atwebpages.com/how_to_operate_mazda_remote_start_2020.pdf
    • https://00c0516a-c822-4344-a779-6f74e039753d.filesusr.com/ugd/9e41f0_293fc3b37d3240fb8fae063edd431224.pdf?index=true
    • http://suvalomimo.atwebpages.com/95352226432.pdf
    • https://17673d3b-e5d0-4e0e-8211-f079fadf35f5.filesusr.com/ugd/13ae68_2a1c79af12a64ef99532f51f1b22bdf6.pdf?index=true
    • http://lufevexos.atwebpages.com/koxubugelosovezuvajera.pdf
    • https://5e9c932d-19a8-4d5a-a970-d4bc0bcb832b.filesusr.com/ugd/bae0a0_af2391068edf44e088baa7a5b057daf1.pdf?index=true
    • 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_off0000fb8d.bin
d7e321f0ad53f34add004955a74d3a11b3be79383ef11abd4f14b1fe14fb0d9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB8D 5524 bytes
font_01_sfnt_off00010e44.bin
d9c7f753f5c6ee828d1d07c0c541baf59c05f61b4405a3c358f8db67c822544f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E44 10720 bytes

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