Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb434d606b716557…

MALICIOUS

PDF

112.3 KB Created: 2021-04-05 03:45:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 731d695431526dd454718be0a7cff16c SHA-1: 765577072a52f99089bcab512e209c990cf75fa1 SHA-256: eb434d606b716557a09f8a4a2d82b7fd8c621571c033cabc3531333aa2f6ca5c
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, one of which is associated with a lure for a "Forex swing trading manual pdf". While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the detection suggest it likely attempts to redirect the user to a malicious site or download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://leonvi.ru/award?keyword=forex+swing+trading+manual+pdf
    • http://sunugukumota.getenjoyment.net/jufudevisajigarixezolat.pdf
    • https://tufefuru.weebly.com/uploads/1/3/4/6/134621659/difufepetematuvo.pdf
    • https://matiposokatogu.weebly.com/uploads/1/3/0/7/130739068/8800889.pdf
    • http://jofufunobek.sportsontheweb.net/teaching_and_learning_approaches.pdf
    • http://zudepogumo.medianewsonline.com/98097008759.pdf
    • http://ligumexijigab.getenjoyment.net/tinajobudal.pdf
    • http://bosuxezaxad.mypressonline.com/95876131193.pdf
    • http://lifolibi.sportsontheweb.net/89849790307.pdf
    • http://numulul.mygamesonline.org/cch_ct_file_thnh_nh.pdf
    • https://gezameluloxeg.weebly.com/uploads/1/3/5/3/135393377/tizixalufug.pdf
    • http://fipizilemuwob.medianewsonline.com/ritejirazomokezemiluwuv.pdf
    • http://fepaporipevari.mypressonline.com/wejuxitevasosulimo.pdf
    • http://kexawez.mygamesonline.org/cake_recipes_download.pdf
    • https://ripegedabezigiz.weebly.com/uploads/1/3/2/6/132695689/welogidufox-wogikozedawuj-pepagefasikov-jaxijara.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tofezaniv.rf.gd/asda_onn_clock_radio_manual.pdf
    • http://zuwosopawekaz.rf.gd/cellular_physiology_of_nerve_and_muscle.pdf
    • https://s3.amazonaws.com/jimugivos/how_to_make_render_in_minecraft.pdf
    • https://s3.amazonaws.com/wujapu/gemurujifeniz.pdf
    • http://zitadufafasid.onlinewebshop.net/adriana_lecouvreur.pdf
    • https://s3.amazonaws.com/wupixufekijax/jibedadomovavamonedow.pdf
    • https://s3.amazonaws.com/sevoga/george_foreman_grill_instructions_hamburger.pdf
    • http://zovibeviniga.myartsonline.com/saxorewepeg.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_off0001776d.bin
7d16d5e48853db4ca813139dc2c4f50a1ea87feb117571704fa55aa81fc85a8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1776D 5476 bytes
font_01_sfnt_off00018a14.bin
c5c3c388ca1344cc26cbd9ec1997aef44ac7c53438a5ce28919cffab97598c39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18A14 12940 bytes

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