Malicious PDF — malware analysis report

Static analysis result for SHA-256 db48b6f00fdc037c…

MALICIOUS

PDF

73.6 KB Created: 2021-06-11 02:12:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 7a29217c5a08981f16d74d3932ccac68 SHA-1: 3c59966caf2433ecc0c175e88aee95445d8cc071 SHA-256: db48b6f00fdc037c88a9f42be25b5a70a2c5c51df9e366f2b2ec366d93c807d5
104 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 'garglob.ru', which is likely a malicious domain used for distributing further payloads or phishing content. The presence of a 'download button' heuristic further supports the phishing lure attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://garglob.ru/pbw?utm_term=sarkar+3+full+movie+download+filmyzilla PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375352/normal_602e678e5d567.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465930/normal_5ff4663fdc40b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409107/normal_5ff95e7fd4a74.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409840/normal_6057ed51ef699.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486350/normal_5ffbb544015b3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467950/normal_60052e5b8e1e7.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4427085/normal_60affa9e3cdd9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501383/normal_5ff3b97213bee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445555/normal_6044feb5a5493.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471273/normal_5febe0a6d7da2.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4471682/normal_60b000809c9cf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4d90399-2c08-485e-a3f5-88cc536f2e1b/xuvenixadowipajow.pdfIn PDF document text
    • http://taxexuwej.pbworks.com/f/barbie_moda_mgica_en_pars_pelcula_completa_youtube.pdfIn PDF document text
    • http://lakebimutep.pbworks.com/w/file/fetch/144424245/present_perfect_continuous_tense_exercises.pdfIn PDF document text
    • http://xalomuzavege.pbworks.com/f/5981568959.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e4ad431-2c86-4a1d-adb6-111603fb2571/los_origenes_de_la_civilizacion_vere_gordon_childe.pdfIn PDF document text
    • http://zuvumuname.pbworks.com/w/file/fetch/145054635/mivagowe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bf9b29a-476c-41ba-9fdf-6bbc3c07245d/97165323459.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f257057b-605b-4ff1-901e-6e997bdf946f/final_fantasy_viii_card_game_tips.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_off0000e28c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE28C 5512 bytes
SHA-256: ed4e2e78e82b84dc22f09f0e1f07eea035a4a52256f989e4243b1db28a034a31
font_01_sfnt_off0000f564.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF564 10612 bytes
SHA-256: e4f063dcc89703fa2d575b51184bd7694d68689d88eecadd9630984e5e790076

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