Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd078241bf072a7c…

MALICIOUS

PDF

337.8 KB Created: 2022-06-04 13:06:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2022-07-15
MD5: 9cbd56af7ec28b1ab417491733a350d0 SHA-1: cd13298a3cca606a5dce6a00deba438b1a103d5c SHA-256: fd078241bf072a7cb920c2afb0110dfb65c57bd79ff376cca11397e1c6eda7bb
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains embedded JavaScript and an external URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged the PDF as malicious. The primary attack vector appears to be directing the user to a phishing site hosted at the identified URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5729

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
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://mifuj.co.za/XSRYdR1H?utm_term=bachon+k+islami+naam+pdf++pdf+file+format+2017
    • https://susagekadem.weebly.com/uploads/1/4/1/7/141717041/vurinamamanukejexam.pdf
    • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/36498f26f7c65be01dfdf00d473eec97/47711843019.pdf
    • https://bofubesal.weebly.com/uploads/1/3/5/9/135958810/kasokuro-temibudeduk.pdf
    • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/16254f070c273b---xuxewuniwepesomemipuwezu.pdf
    • http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/162770d1856aba---2984768013.pdf
    • https://vasukopedu.weebly.com/uploads/1/3/4/7/134709477/leniro-kibod-dopetevunija.pdf
    • https://fixoxotogixas.weebly.com/uploads/1/3/4/3/134374926/suboga.pdf
    • http://to-tuong.com/media/ckfinder/files/35382190513.pdf
    • http://shangyi-pump.com/uploads/file/280618556846.pdf
    • https://samaruwopag.weebly.com/uploads/1/3/0/7/130738554/lenanisiw.pdf
    • https://akproauto.net/nbloom/fckuploads/file/zexenamegotoran.pdf
    • https://hw-power.com/uploads/ckfiles/files/625ba9278819e.pdf
    • http://kietminhrivet.com/upload/files/70640147893.pdf
    • https://gedevoliritigit.weebly.com/uploads/1/3/4/6/134686631/46467df313.pdf
    • https://burufazifefep.weebly.com/uploads/1/3/4/5/134584298/bomivazef_vetexawepog_somafebiwogeru.pdf
    • http://kowalstwwo.pl/public/cms/images/file/34627253066.pdf
    • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/162017531ce3c5---fadejitewipilavev.pdf
    • https://bekefipupo.weebly.com/uploads/1/3/4/0/134096026/fowefixasaluriw.pdf
    • https://full-e.com/app/webroot/userfiles/files/20220405_191028.pdf
    • https://gejizataki.weebly.com/uploads/1/3/3/9/133997606/puborije-dufil-zeguvife.pdf
    • https://coe-project53.istc.int/app/webroot/js/kcfinder/upload/files/gedutugeworejisoz.pdf
    • https://dukilasurijase.weebly.com/uploads/1/3/2/8/132815907/831843d7f93b.pdf
    • https://kagamufoxigog.weebly.com/uploads/1/3/4/0/134013308/xukufozolumo.pdf
    • https://pudevadiketimim.weebly.com/uploads/1/3/4/6/134606785/dobufufarobadogepedi.pdf
    • https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/i339fb20tcq69m4ae1e8i04s4n/wanofululofo.pdf
    • http://obrienbuilders.com/userfiles/file/3289296844.pdf
    • https://sefozavabe.weebly.com/uploads/1/4/1/8/141863237/3934893.pdf
    • http://tonyprins.nl/images/uploads/file/56054809159.pdf
    • http://ingenierie-mont-blanc.fr/kcfinder/upload/files/dajiwekej.pdf
    • http://ukicda.com/admin/fckeditor_upfiles/file/2022042301434980554.pdf
    • http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16234e8508447f---89588516708.pdf
    • https://fifosekula.weebly.com/uploads/1/3/4/0/134041306/samubuv.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004d951.bin
46f7b888c0099b6f24ed56b05ba8090b0139bb775fe20370944eff2f3d6ff3c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D951 11372 bytes
font_01_sfnt_off0004f40b.bin
8f34f2bf9bad2140a56e96a717cb7d6e4086e8435e59b861ae4b7747c0b5c0a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F40B 16876 bytes
font_02_sfnt_off00051f52.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51F52 16792 bytes

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