Malicious PDF — malware analysis report

Static analysis result for SHA-256 805ba5d0d6c40c07…

MALICIOUS

PDF

75.5 KB Created: 2021-03-12 10:48:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c927847bac49fdae569892e0cc1d36b5 SHA-1: d9036f49039fa51284151a34d34ddae2285d86bd SHA-256: 805ba5d0d6c40c07e4908daf12ed2157715bef37d6372ecfe71b8ded37c3cdc1
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a heuristic indicating an external URI, specifically `https://xezojetit.ru/wix?keyword=mega+hd+apk+2020`, which is likely used to deliver a malicious payload. The presence of a 'download button' heuristic further supports the phishing and download lure. ClamAV detection confirms the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://xezojetit.ru/wix?keyword=mega+hd+apk+2020
    • https://static.s123-cdn-static.com/uploads/4451045/normal_5fc7df9ba2f38.pdf
    • https://cdn-cms.f-static.net/uploads/4474475/normal_5fd653eb64345.pdf
    • https://static.s123-cdn-static.com/uploads/4459166/normal_5fcfe76a82d67.pdf
    • https://cdn-cms.f-static.net/uploads/4392868/normal_600e573ca45a1.pdf
    • https://static.s123-cdn-static.com/uploads/4489244/normal_5fc88fc73fa9c.pdf
    • https://static.s123-cdn-static.com/uploads/4495037/normal_5fe5121e51275.pdf
    • https://static.s123-cdn-static.com/uploads/4470835/normal_5fe205b2963bd.pdf
    • https://static.s123-cdn-static.com/uploads/4382770/normal_5feca0fa86ad7.pdf
    • https://static.s123-cdn-static.com/uploads/4406202/normal_5fedc35f00075.pdf
    • https://cdn-cms.f-static.net/uploads/4403804/normal_5fdab61929253.pdf
    • http://mopexaxurip.getenjoyment.net/57820629832.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://fatavetotujel.onlinewebshop.net/why_is_my_dyson_hard_to_push_on_carpet.pdf
    • http://xinifaduzinuvu.onlinewebshop.net/ryobi_2000_psi_electric_pressure_washer_price.pdf
    • https://s3.amazonaws.com/zesotat/9011802000.pdf
    • https://s3.amazonaws.com/wunojipu/gutofonuwifirekududid.pdf
    • http://dufobirufo.atwebpages.com/58805880853.pdf
    • https://s3.amazonaws.com/xufujofaleki/latakokoguzejukanax.pdf
    • http://jupegojut.atwebpages.com/cretan_hieroglyphs.pdf
    • http://sogoxutagejuno.atwebpages.com/susan_forward_emotional_blackmail_free_download.pdf
    • https://s3.amazonaws.com/tesapibebujep/ro_ghoul_ccg_guide.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de7c.bin
c540d89bbb4c92908ca2b245eee745a52d262dbbbf75dcf545a42a7113304f79		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE7C 4704 bytes
font_01_sfnt_off0000ee83.bin
09a9b24aca7a45d07218f28db1a3874db0b122a9d4fea014324c665b00d37fb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE83 10636 bytes
font_02_sfnt_off000112f3.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x112F3 4324 bytes

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