Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc500b26b5218610…

MALICIOUS

PDF

72.3 KB Created: 2021-04-04 09:22:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c8f2adbd52318f0d775326680730656 SHA-1: ea8ff9039673664cf67a9dba76286519a8b8206e SHA-256: fc500b26b52186107438f7d2bb6385632549a0a91fe8aa49e7ae2b6009847b06
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, identified as malicious by ClamAV and an ML classifier. The document body, though partially corrupted, suggests a lure related to a 'price guide'. The presence of an external URI indicates an attempt to redirect the user to a potentially malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wix?keyword=grinderscape+price+guide
    • https://pirusamu.weebly.com/uploads/1/3/1/3/131383726/vexori.pdf
    • https://lunogowome.weebly.com/uploads/1/3/4/8/134859941/188d9922c.pdf
    • http://pitushok.fun/how_to_operate_a_rinnai_gas_heaterd8zly.pdf
    • https://cdn.sqhk.co/jolodovi/gcqK3jd/gotikudinulozutevunad.pdf
    • http://dombitarf.ru/62158063747tcpgq.pdf
    • http://fegubel.iblogger.org/sexadesaruxobipipododos.pdf
    • http://nnorm-id.com/peugeot_103_sport_prix_tunisie_2020uckmu.pdf
    • http://subbellassecret.com/hierarchy_of_needs_worksheettqsb6.pdf
    • http://allerop.xyz/91337115694bg7ka.pdf
    • http://triple-doska1.club/inseta_re5_study_guide7wowq.pdf
    • http://bilkan.fun/dmarc_report_analyzer_linuxyn1mf.pdf
    • https://cdn.sqhk.co/xonudutixova/e9ZmGif/mafia_city_h5_gameplay.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/7ec966ef-6870-42ee-b93b-f610822da0d3/deduwevo.pdf
    • https://uploads.strikinglycdn.com/files/58f5869b-bdec-4a4f-9303-c5668648cd90/97389915902.pdf
    • http://teposowadu.rf.gd/la_poigne_de_poussire_amadou_hampat_ba.pdf
    • http://xuwexabunes.rf.gd/makalah_controlling_dalam_manajemen.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_off0000dd65.bin
4a6d7f9ff728293f4999d11a30cf5364cde3c2ee90c3ae45587e765bfcff1b94		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD65 5240 bytes
font_01_sfnt_off0000ef49.bin
012e9cb7f4d003f9eecf45ec4356d6c182fe4bdf5e171f35be45e9ed909b80d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF49 10872 bytes

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