Malicious PDF — malware analysis report

Static analysis result for SHA-256 b17829d6d64f21e9…

MALICIOUS

PDF

70.9 KB Created: 2021-04-06 06:28:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d4e6ac7783707b0df046c5183e0605f2 SHA-1: f34bc9c5b87ba71ca6063bd08a422876a5179270 SHA-256: b17829d6d64f21e92e49dd8bbe461b53a8c34ef46e9e5fe93745042805d56352
94 Risk Score

Malware Insights

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

The file is a PDF document flagged by ClamAV as a phishing trojan. It contains an embedded URI pointing to 'jacksth.ru', which is likely a malicious domain used to host phishing content or distribute further malware. The document body, though heavily obfuscated, suggests a lure related to a 'legal dictionary'. No scripts were extracted, but the presence of external URIs and the ML classifier's output strongly indicate a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9277

Heuristics 3

  • 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
  • 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://jacksth.ru/award?keyword=legal+dictionary+english+to+gujarati+pdf
    • http://zesamoa.online/how_much_sat_score_is_required_for_uc_berkeleybhc0n.pdf
    • http://extrameets.fun/2952261402n2uml.pdf
    • https://static.s123-cdn-static.com/uploads/4375541/normal_5fee5375bed7d.pdf
    • https://mipurokuniveg.weebly.com/uploads/1/3/4/5/134508865/9044774.pdf
    • https://jowapiwinutakun.weebly.com/uploads/1/3/4/3/134365581/xunazerowekemep-xezagewo-muxerisiduxa.pdf
    • https://cdn-cms.f-static.net/uploads/4416921/normal_6028efe577bfc.pdf
    • https://cdn-cms.f-static.net/uploads/4473651/normal_5fe8b9d11cb2a.pdf
    • https://cdn-cms.f-static.net/uploads/4445729/normal_601e3c5365b5c.pdf
    • https://cdn-cms.f-static.net/uploads/4485165/normal_602b0fcc6e1a0.pdf
    • https://static.s123-cdn-static.com/uploads/4385848/normal_5ff221ad52b9c.pdf
    • http://fragcups.com/garmin_handheld_gps_gpsmap_78_reviewm5vmq.pdf
    • http://resimpub.com/iso_9001_revision_2015_free_downloadkkecb.pdf
    • https://fojowixejomad.weebly.com/uploads/1/3/2/6/132681658/ae5a17f6.pdf
    • https://nemamalalebu.weebly.com/uploads/1/3/4/3/134357173/9f21d321b9.pdf
    • https://static.s123-cdn-static.com/uploads/4423195/normal_60061559742e4.pdf
    • https://static.s123-cdn-static.com/uploads/4487918/normal_5fed404a86eb8.pdf
    • https://xitetufiwirisax.weebly.com/uploads/1/3/4/0/134041449/pawedajiv.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.indictrans.org
    • https://uploads.strikinglycdn.com/files/cdf3f5fc-9249-4ae5-85b8-9f282f04697a/ejercicios_resueltos_matematicas_3_eso_operaciones_combinadas_fracciones.pdf
    • https://uploads.strikinglycdn.com/files/591dadde-8127-45ec-a62c-b4cea185891b/44743996823.pdf
    • https://uploads.strikinglycdn.com/files/cbaa0f0f-9a9a-45c3-8939-ab5f329e4b9b/44989051333.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e46b.bin
fd6df06cc0b4411f7ac4c2e0561b417913344ee72a178e3eea304286b8eeca0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE46B 5536 bytes
font_01_sfnt_off0000f74b.bin
7ed5579e9b86033b00e28ec5b09f9eaf1c1c2cd724c05a46de991361ac37f2ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF74B 6656 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.