Malicious PDF — malware analysis report

Static analysis result for SHA-256 30873de3fc95d82e…

MALICIOUS

PDF

157.5 KB Created: 2021-03-18 09:14:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d05f21e7264f9ad46f177c4426c0f32 SHA-1: 1eeeaf5c15ad6dcfc7c660820d954d211cf4d74d SHA-256: 30873de3fc95d82e4f31accbfafc631a4d5c65f3e07e81f737533eb1cca2517b
96 Risk Score

Malware Insights

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

The file was detected by ClamAV as Pdf.Phishing.Trojan and flagged by an ML classifier, indicating malicious intent. It contains multiple embedded URLs, with the primary one being `https://xezojetit.ru/123?utm_term=metro+line+map+delhi+pdf`, suggesting a phishing or malware distribution lure. The PDF structure itself does not contain executable scripts, but the presence of external links is a strong indicator of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://xezojetit.ru/123?utm_term=metro+line+map+delhi+pdf
    • https://cdn.sqhk.co/lebudawojafi/jscghgf/ffxv_monster_arena_prizes.pdf
    • http://kameregeperiwaz.22web.org/nifawomamumasajo.pdf
    • https://cdn-cms.f-static.net/uploads/4372373/normal_603853d9f150a.pdf
    • https://cdn-cms.f-static.net/uploads/4484641/normal_6016de6f7007e.pdf
    • https://static.s123-cdn-static.com/uploads/4402948/normal_5ffd248b794d2.pdf
    • https://cdn-cms.f-static.net/uploads/4370059/normal_604e13099be2e.pdf
    • https://static.s123-cdn-static.com/uploads/4472763/normal_6008e62fc4d08.pdf
    • https://cdn.sqhk.co/farafakilof/iqTMheJ/vodupagagexejajugozi.pdf
    • https://static.s123-cdn-static.com/uploads/4485822/normal_5feed6ffccf99.pdf
    • http://gikiwasixe.66ghz.com/keppel_land_annual_report.pdf
    • https://cdn-cms.f-static.net/uploads/4456134/normal_5fd8858b8d942.pdf
    • https://static.s123-cdn-static.com/uploads/4446151/normal_5feb083640958.pdf
    • https://cdn-cms.f-static.net/uploads/4487641/normal_6024960667748.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://legofovivaxom.epizy.com/wondershareelement_with_crack.pdf
    • https://4c982f7a-b72b-446d-8c7a-5e2d6818c0db.filesusr.com/ugd/519a61_8795227860704044a1b220f772b86f72.pdf?index=true
    • https://21c505bb-01ca-4817-a549-4ed1ebba5040.filesusr.com/ugd/7d7105_ea83da00b6af4e318f1b514911249aef.pdf?index=true
    • http://dexegudev.epizy.com/blomberg_ldv42244_installation_manual.pdf
    • http://lawurukipajuxe.rf.gd/wunaxikuxosax.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00020c1c.bin
aae39f9f58333dc089d5a9a50239f8c4523e809bf28e36729a76c25f8abe0aa7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x20C1C 3500 bytes
font_01_sfnt_off0002189d.bin
f2057d7a0f381acd0a511fa7e27c649d675d2ddd6935aca94bcf3a2bad73824e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2189D 5108 bytes
font_02_sfnt_off000229da.bin
5bd3a5a5ddcc69142b840c1c899560cd1a87c2b8f60ee222b6590a9813770470		 pdf-font-stream PDF embedded font (sfnt) at offset 0x229DA 12184 bytes
font_03_sfnt_off000252ff.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252FF 16164 bytes

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