Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d14786ed6e40834…

MALICIOUS

PDF

75.6 KB Created: 2021-03-19 21:12:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e6e6ee5e905c1de78b3c42bbfab7d92 SHA-1: 79a0aa067a49c152ccd1d9cc12a1c4a184a97cb3 SHA-256: 3d14786ed6e408346fd3af107e863c9e596b46d62a6ad950dda61b55e8d549bb
104 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that impersonates a delivery service, likely to trick the user into clicking it. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with a phishing or malware distribution lure. No scripts were extracted, but the presence of an external URI and the document's content suggest a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://lozipotod.ru/strik?utm_term=fedex+home+delivery+bridgeport+wv
    • https://static.s123-cdn-static.com/uploads/4529281/normal_6005308ec475c.pdf
    • http://fullpisetc.ru/what_is_in_whirlpool_water_softener_cleaner1kai7.pdf
    • https://cdn-cms.f-static.net/uploads/4470837/normal_5fdbfde1ee589.pdf
    • https://static.s123-cdn-static.com/uploads/4446015/normal_5ff4cdb6c4f8e.pdf
    • http://xagugudel.sportsontheweb.net/bosuzonuf.pdf
    • https://cdn-cms.f-static.net/uploads/4409840/normal_6024f727b63cf.pdf
    • http://didopikorubozav.iblogger.org/73947152044.pdf
    • https://cdn-cms.f-static.net/uploads/4469359/normal_602c918c40447.pdf
    • https://cdn-cms.f-static.net/uploads/4494440/normal_6041d885d3ee2.pdf
    • http://afracheat8.xyz/largest_us_army_base_germanyiu58l.pdf
    • http://lovepositions.info/what_is_an_automatic_traction_control_systemrrtt6.pdf
    • https://cdn-cms.f-static.net/uploads/4366306/normal_604a9282448a8.pdf
    • http://digitalliteracyinstitute.com/nesuvofivaf8cgt.pdf
    • http://mumijivamivaxij.medianewsonline.com/zizeraxutatodijesovutul.pdf
    • https://cdn-cms.f-static.net/uploads/4496151/normal_60317c8dd23d9.pdf
    • https://static.s123-cdn-static.com/uploads/4386591/normal_5ff668dbd6d04.pdf
    • http://sujabupinoda.scienceontheweb.net/19313662002.pdf
    • http://tokepubex.getenjoyment.net/nuxorixezob.pdf
    • https://cdn-cms.f-static.net/uploads/4407807/normal_60319bdab52c8.pdf
    • http://kawlites.online/edconnect_installation_and_user_guidedqk5x.pdf
    • http://mmamba.ru/un_resumen_del_libro_del_apocalipsis_de_la_bibliaxpyb9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://vajifotikidigi.rf.gd/23173482019.pdf
    • http://zumepule.rf.gd/58598618131.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_off0000ea01.bin
f4ce10d288f93e174695b79d9c9a49665e84db301d5e33bb215cff58b245b767		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA01 5404 bytes
font_01_sfnt_off0000fc52.bin
aeed7f7859f2d3389187e857cd12a9dc5f6c04e4ea5847a3d189b3e4c427c10c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC52 10824 bytes

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