Malicious PDF — malware analysis report

Static analysis result for SHA-256 a05f6c66c72584c8…

MALICIOUS

PDF

73.3 KB Created: 2021-06-21 04:00:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 92c1080694e10afa6613cd793dc8126f SHA-1: 45592080f8f4111d286cca91e6d1073e11bc049b SHA-256: a05f6c66c72584c898e52b813cb04182e30feeb23e9426bb8aaeab9de2dbfb22
164 Risk Score

Malware Insights

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

The PDF document contains multiple links to external websites, some hosted on compromised WordPress sites, suggesting a phishing or malware distribution attempt. The presence of a download button and the URL containing 'livenettv download apk' indicates a lure to download potentially malicious software. ClamAV detection further supports its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://irlanc.ru/uplcv?utm_term=livenettv+download+apk PDF link annotation
    • http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/a95c5be55987ef0738be0bb10202f7cb/86279011713.pdfIn PDF document text
    • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/16086b58863382---gukajesutozegaxebifosug.pdfIn PDF document text
    • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c92dc278685---mowakoluviriwu.pdfIn PDF document text
    • https://www.llgnjinc.com/wp-content/plugins/super-forms/uploads/php/files/9f62272d062edc9edaa1c985e4464cfb/kisopirenuzewunuxilevo.pdfIn PDF document text
    • http://shuimotongyuan.com/userfiles/file/fixib.pdfIn PDF document text
    • http://www.juniorcollege.cl/ckfinder/userfiles/files/26005365701.pdfIn PDF document text
    • http://rebornfair.com/FileData/ckfinder/files/20210621_421B156F46DD522D.pdfIn PDF document text
    • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a9689d1f923---68862812595.pdfIn PDF document text
    • http://salonorganica.ru/upload/files/sedezinigulirakifiteret.pdfIn PDF document text
    • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/16076048bc06dc---60457146411.pdfIn PDF document text
    • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608872c244fea---10218378965.pdfIn PDF document text
    • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160ba977ec299a---sotezevaligutilotubosa.pdfIn PDF document text
    • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16083cebb6f75e---45459300402.pdfIn PDF document text
    • https://amrapalispot.com/userfiles/file/vosuwekul.pdfIn PDF document text
    • http://khiconghoixuancong.com/Khicong/admin/userfiles/file/xozasezolemux.pdfIn PDF document text
    • https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/035586fd5035d3dd10e0f6d832007fb5/gubezolozuwuzituwebotoviv.pdfIn PDF document text
    • https://aadhaarretail.com/administrator/imagetemp/file/xirolonasivanusoji.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/40ldkdncmfm8hatm1jdm5tr5go/44194095128.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e1e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1E4 4836 bytes
SHA-256: 10dc6f723d9511da33ba01ccda25748441e4e9f81d0bdf7af1124fd7af6da1e4
font_01_sfnt_off0000f285.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF285 11064 bytes
SHA-256: d699a2fb6d52682a3ceb098f26744033bfa2a9dab5280801abc5147f45d09447

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