Malicious PDF — malware analysis report

Static analysis result for SHA-256 ead67ea78c938f60…

MALICIOUS

PDF

87.5 KB Created: 2021-06-28 00:56:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: f3e5ac83c2e99322a23ce04b47d0b641 SHA-1: a2683ec6de3508c16cb779067e76fc2e1e48105a SHA-256: ead67ea78c938f6096bbcf929b2c2292a98ada42bbdcfca48d636e40ac678580
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to exploit users through social engineering, likely as part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9835

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://drafthe.ru/uplcv?utm_term=chinese+special+curry
    • https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/80713677e1cd2d7245ab54f4ca1ca7c2/zakepikikawukotoworasodow.pdf
    • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/8388ff0863a345413f00b64fe97059af/tumagexopusa.pdf
    • https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/63c4d1cc8e03550d93cf59b3271298aa/81856319279.pdf
    • http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/fb3ba5ba5db7bc3a5c6eff61ceb48326/88382472904.pdf
    • http://www.psoevalledeabdalajis.es/ckfinder/userfiles/files/mazabota.pdf
    • http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8cd488682e---7648822065.pdf
    • https://atraba-holding.com/userfiles/file/85019397647.pdf
    • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609aa211ea64f---lisonuvuxigu.pdf
    • http://backupcenters.com/userfiles/file/78346504720.pdf
    • https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082d914581f1---gejoxuwigerefogavupuju.pdf
    • https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/160709e5490d98---febonipivu.pdf
    • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/b1e4c0e16382912359ada08565fecbfc/tivisofenafenaxafokib.pdf
    • http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160b7ed3a9ffc7---87891136142.pdf
    • https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/ad49dd21bfcca38114b2afbbc5d12d67/ruxopewava.pdf
    • https://migger.dk/userimages/file/dolibeni.pdf
    • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/22327e3bbdbc21c4e4428c7e331d1909/kunulorinenimewozit.pdf
    • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ad2031e870f---vokuxetigex.pdf
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad0ad8d4ce7---turibivesivusilajusigufav.pdf
    • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4852bf1057---zekapitakujusonib.pdf
    • https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/e0cae6d2b516074fb5f8189876f0a922/wogepegepafitoraj.pdf
    • http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c461506322f---furamavalinoz.pdf
    • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c1016c271ce---50330018509.pdf
    • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/5cj1jc8tc3a0eqvi8tpu9a4rfr/laperanijazexit.pdf
    • https://accesoriosalmayor.com/images/userfiles/file/71108306193.pdf
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/aea0d70b5bafac7f0ff99b8d60f5f91e/gudakojusabavixudagipifu.pdf
    • http://upsshop.ru/ckfinder/userfiles/files/rigosukomibokifekidomuku.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_off0000f04a.bin
6f14cf34f82417616cdec7dbb0b29d8fc036ceee617bbeb4000d6ce657de23c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF04A 10496 bytes
font_01_sfnt_off0001081b.bin
1bbe80ad57514e476d4f1febd706078689e479d05f22636cede706f0c0459295		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1081B 18020 bytes
font_02_sfnt_off00013729.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13729 16792 bytes

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