Malicious PDF — malware analysis report

Static analysis result for SHA-256 03024356bd5261c7…

MALICIOUS

PDF

77.8 KB Created: 2021-05-08 10:40:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: ba2fd0237bf4e94b938012b502ea4b46 SHA-1: 493f43c9f01785e01df1a9e77d9cfcfc82579029 SHA-256: 03024356bd5261c7791ce4c07e527f5093d881c56427fb325f8c81a90bf92cad
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware delivery scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://soxebez.ru/strik?utm_term=how+much+would+it+cost+to+build+an+indoor+softball+field PDF link annotation
    • http://vatamulejuvovi.22web.org/mibakezenijaba.pdfIn PDF document text
    • http://bevamifugidujew.scienceontheweb.net/ketogenic_diet_foods_list.pdfIn PDF document text
    • http://funseeds.site/813383740757sd2f.pdfIn PDF document text
    • http://noxitafevinuv.22web.org/xurugavidaziji.pdfIn PDF document text
    • http://urott-hu.com/didosukisivanikuzogajjsckg.pdfIn PDF document text
    • http://lalat.space/netgear_powerline_av500_user_manualff26l.pdfIn PDF document text
    • http://fibisazorowax.mypressonline.com/simple_tenancy_agreement_sample.pdfIn PDF document text
    • http://dowapid.iblogger.org/84205091209.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/paxunu/arab_best_video_songs.pdfIn PDF document text
    • http://pasoxivetigo.epizy.com/49705260347.pdfIn PDF document text
    • https://s3.amazonaws.com/davawina/subway_surf_hile_cretsiz_indir.pdfIn PDF document text
    • http://tuxizowivu.rf.gd/66102526618.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c8b303b-f52b-4514-a28d-83ec30b430af/daniel_plan_detox.pdfIn PDF document text
    • http://ribibivuja.rf.gd/how_much_is_sonic_milkshakes.pdfIn PDF document text
    • http://rabopusafat.epizy.com/esempio_abstract_tesi.pdfIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/58715165541.pdfIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/96066472852.pdfIn PDF document text
    • http://wobowix.rf.gd/pipavikopusap.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/cooking_king_boletes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/433c7d9e-1d0c-4f36-86ec-b054590f821b/gaximubefakabij.pdfIn PDF document text
    • http://bededojobafepeb.rf.gd/the_animator_s_survival_kit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d87d4e21-9c80-41e8-ada5-26c1b00d28af/zopazaferegiw.pdfIn 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_off0000ef4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF4D 5452 bytes
SHA-256: d8c578c515e5d38bc4f4ed760949288ca80df1a45546d11095a933d1fa6bdcb2
font_01_sfnt_off000101b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101B8 11652 bytes
SHA-256: 30ee7e7169bcf6e7c902643a2530438a0768d355b2ddb4775eec9e9531937e87

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