Malicious PDF — malware analysis report

Static analysis result for SHA-256 0abd6bea5bb8ef51…

MALICIOUS

PDF

95.2 KB Created: 2021-05-16 18:48:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b7e8b7d872b51e32f75728951280d74f SHA-1: 935311f3f5acf4a8f2efa9c06c95a025bc9d8011 SHA-256: 0abd6bea5bb8ef51729357d78e8281ed60a9cf2ddace14f7dce918e595e4e083
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with a high risk score. It contains an embedded URI pointing to a suspicious domain, 'gimoguvi.ru', which is likely used to host a phishing page or a second-stage payload. The document body, though heavily obfuscated, suggests a lure related to 'Tardis plans metric'. No scripts were extracted, but the PDF structure and embedded URI indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://gimoguvi.ru/strik?utm_term=tardis+plans+metric
    • https://cdn.sqhk.co/nomevagume/aFujHym/deroga.pdf
    • https://cdn.sqhk.co/wezokobuli/fhf9Xhi/6076417992.pdf
    • http://xawamiwupajev.mygamesonline.org/37088442193.pdf
    • https://cdn-cms.f-static.net/uploads/4408340/normal_601d65f78f159.pdf
    • http://takaweri.mywebcommunity.org/kazidina.pdf
    • http://pazolozul.mypressonline.com/apostolic_sermons.pdf
    • https://static.s123-cdn-static.com/uploads/4366324/normal_5fcdbb8a66ebc.pdf
    • https://cdn.sqhk.co/wuvotalek/irjbha5/big_baby_davis_lsu.pdf
    • https://cdn-cms.f-static.net/uploads/4457320/normal_60436dc255435.pdf
    • https://cdn.sqhk.co/kitijorawul/bgjcKtQ/sportschool_van_gameren_rhoon.pdf
    • https://cdn-cms.f-static.net/uploads/4414172/normal_6060a625299d4.pdf
    • https://cdn-cms.f-static.net/uploads/4467612/normal_5fe7ff6d459a5.pdf
    • https://cdn.sqhk.co/rapedipular/mVsmifh/toxetilovafaj.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://nibemodida.myartsonline.com/2014_john_deere_gator_825i_owners_manual.pdf
    • https://uploads.strikinglycdn.com/files/50cf4f4f-e3c8-479a-b0d3-a48b964ad2c4/vunizidowuvenulufadeno.pdf
    • https://uploads.strikinglycdn.com/files/0a807d93-8b0c-4b16-bfd1-e36980d62a91/washington_dc_travel_restrictions_thanksgiving.pdf
    • http://soranodabiwegi.myartsonline.com/xapubeluxozegem.pdf
    • https://673fcb93-492a-40d1-a7cc-77260b5c7816.filesusr.com/ugd/62d21a_e5790b41cd024c5a9ac83fa4ed399058.pdf?index=true
    • https://uploads.strikinglycdn.com/files/f3b05a15-4138-44e8-ad5c-53a6acff1dda/gopigasakisulisapuginu.pdf
    • https://uploads.strikinglycdn.com/files/1c42eac4-97f3-49b2-b302-4ad0728987d3/if_pq_means.pdf
    • https://uploads.strikinglycdn.com/files/27e36ecd-8614-4da6-a775-93fd0bc008d9/zosojasevanudupubavesigel.pdf
    • https://0491f86b-060d-4f4a-be23-b0d01488777f.filesusr.com/ugd/faa7ef_8b84da22af464503a1f9f8bcf613a928.pdf?index=true
    • https://32cf4326-ba62-484c-a3ca-05d02c2dd2e5.filesusr.com/ugd/0b46e6_c3af83d5362a4d87afc2e441c1dc4668.pdf?index=true
    • 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_off0001387d.bin
38c81a62ef03b692822b6355d1b981b8c412d53522ed92d321a9a74b6d075cdd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1387D 5168 bytes
font_01_sfnt_off000149f8.bin
34fd5839834837c15c309f1dc392f6499020575b76e8f21a4022ccf6c3e73a4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x149F8 11052 bytes

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