Malicious PDF — malware analysis report

Static analysis result for SHA-256 64a17a89917246a0…

MALICIOUS

PDF

76.3 KB Created: 2021-03-19 08:54:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ef751e5f9ca6c059b4075f7265ece59 SHA-1: 38d4fd5f77c27718b15ed162383d288b9d64fd6c SHA-256: 64a17a89917246a0f3c74345f26f2e454f81cfdc1a7f296bb7e0d660c7c48fc3
134 Risk Score

Malware Insights

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

The PDF contains multiple suspicious external links, with one specifically noted as an invisible link to a suspicious domain. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to trick users into visiting malicious sites or downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8479

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
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://vilenefex.ru/award?keyword=amharic+to+amharic+dictionary+pdf
    • http://spindlndou.space/hp_photosmart_5520_printer_ink_cartridgesf1lqo.pdf
    • https://nugilura.weebly.com/uploads/1/3/5/3/135317706/72b14.pdf
    • http://iciapp.xyz/sansui_tv_customer_care_numbergj7c1.pdf
    • http://connexion-amelii.xyz/o_mera_bhola_hai_bhandari_song_mingllar1.pdf
    • http://naturaleone.space/tomb_raider_dreamcast_downloaduut0f.pdf
    • http://catsism.com/moxamosesoziluluvasii56.pdf
    • http://nubilejoso.iblogger.org/wodefelulamomoz.pdf
    • http://blancop.xyz/chitrkar_information_in_marathim6df8.pdf
    • http://fortuneo-enligne.com/angina_estable_tratamientopgy7a.pdf
    • http://kavojunulibugo.22web.org/68878338693.pdf
    • http://securityofusersdevicesonline.site/how_to_replace_2015_equinox_batterysvnbx.pdf
    • https://kezobonuduwu.weebly.com/uploads/1/3/4/4/134457579/2672142.pdf
    • https://duzunadi.weebly.com/uploads/1/3/0/9/130969775/224fed642ef8d.pdf
    • http://pekokaxa.22web.org/what_does_dry_mean_on_my_portable_air_conditioner.pdf
    • https://nerutemiwuxofa.weebly.com/uploads/1/3/1/3/131398157/mebora_xiverituko_vawipekuzus_peviwasaxobuka.pdf
    • http://hookup154.space/dolby_profile_selector_has_stopped_workingu2nuk.pdf
    • https://fuvipizewovotat.weebly.com/uploads/1/3/1/0/131069886/a0bf72da.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zopenave/89022755884.pdf
    • http://gagonunanu.epizy.com/pan_card_nsdl_application_form.pdf
    • https://s3.amazonaws.com/waxapoz/98066811286.pdf
    • http://damewanobojojo.rf.gd/android_1_mode.pdf
    • https://s3.amazonaws.com/rilexazejuzovep/38886009934.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010f76.bin
efe12e321aa911a3e76abe8e38c773cc78018a3bdd1ad6c8a9f4ba9bc701ceab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10F76 5276 bytes

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