Malicious PDF — malware analysis report

Static analysis result for SHA-256 04f3558a116053a3…

MALICIOUS

PDF

77.5 KB Created: 2021-03-22 06:47:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a2ee6730a5a5da8c01dfb3b1c3e12662 SHA-1: 706cd2f19e77e62bb3340292c156ed66d95cc137 SHA-256: 04f3558a116053a3394a53b1747cfe66c3158c32af8de90c6e75cfdf435a724b
96 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with one specifically matching the document's purported topic. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing or malware-hosting sites. No scripts were extracted, but the presence of many external URIs suggests a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://dafemum.ru/award?keyword=causas+y+consecuencias+del+alcoholismo+en+adolescentes+pdf
    • http://likefetevu.getenjoyment.net/dell_u3415w_monitor_stand.pdf
    • http://mumolazesinidix.getenjoyment.net/rapida_pressure_cooker_instruction_manual.pdf
    • http://novoruxove.iblogger.org/how_to_attach_hose_to_porter_cable_air_compressor.pdf
    • http://menetufebev.22web.org/cateye_velo_8_manual.pdf
    • http://trysucre.pro/5913324420581ykw.pdf
    • http://lozajakar.iblogger.org/bbc_iplayer_error_5.pdf
    • http://instasale.company/hoover_powerdash_pet_carpet_cleaner_attachmentswi32c.pdf
    • http://funogager.22web.org/cache_cleaner_smart_pro_apk.pdf
    • http://liporolo.iblogger.org/mofunobepon.pdf
    • http://chelamela.org/is_the_selection_going_to_become_a_movieskljd.pdf
    • http://reduslimer.website/pikekoberizororusibizaxav90qp.pdf
    • http://gadatoreneperil.mygamesonline.org/cause_effect_reading_vocabulary_development_3.pdf
    • http://marojuburegorad.22web.org/a_dolls_house_social_setting.pdf
    • http://sell-toclick.online/mitomebuwenopuwadisojapa1azi7.pdf
    • https://nolizusumebixaz.weebly.com/uploads/1/3/1/4/131438071/bikeki_janevisifidaku.pdf
    • http://wildber.store/zobimixabnv4u.pdf
    • http://xodowomasugis.iblogger.org/medikefezokulow.pdf
    • http://vandify.com/nififapefi90qw.pdf
    • http://zonitupupafof.sportsontheweb.net/candy_convertidor_jpg_a.pdf
    • http://wugupomovupa.sportsontheweb.net/active_and_passive_voice_worksheets_for_grade_6.pdf
    • https://xazefobilizap.weebly.com/uploads/1/3/1/3/131384081/e01444260ba.pdf
    • http://mir23.xyz/doxomepibawitituta69kc.pdf
    • https://sidujojuwizubal.weebly.com/uploads/1/3/4/5/134587716/92975c5ad5.pdf
    • https://kazusabetife.weebly.com/uploads/1/3/5/3/135318045/8ec0cfff0b.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://dapaligam.rf.gd/since_you_ve_been_gone_book.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_off0000ede8.bin
5b5754f317a0024eb7ce8b8a6cecc2d0468d88bd71fbf0a427e4708758e5168a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEDE8 5304 bytes
font_01_sfnt_off0000ffd4.bin
431f7af62af26e170e49864c9e6733b8cd832c6c20b27301f9a16d4ce459286b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFFD4 11716 bytes

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