Malicious PDF — malware analysis report

Static analysis result for SHA-256 32bc75a2db561da9…

MALICIOUS

PDF

73.9 KB Created: 2021-02-18 02:10:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 43334f768a750fab5f063088d0da3656 SHA-1: 65c2c890f0d1092799f226b2538cade6e69cb1d2 SHA-256: 32bc75a2db561da96f21053c37087788b22448ba4338baf35e2bed7c51a700d0
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 URL, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged it as malicious with high confidence. The embedded URL, https://bologen.ru/wix?keyword=get+on+the+top+unblocked, likely leads to a phishing or malware distribution site. No scripts were extracted, but the PDF structure and embedded URI are strong indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://bologen.ru/wix?keyword=get+on+the+top+unblocked PDF link annotation
    • http://babilexogir.22web.org/38273370077.pdfIn PDF document text
    • https://cdn.sqhk.co/popuzanuguw/iejcXGh/tap_build_number_seven_times.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449777/normal_60226782e304e.pdfIn PDF document text
    • https://buwulikifem.weebly.com/uploads/1/3/4/5/134583505/97453.pdfIn PDF document text
    • https://makirogu.weebly.com/uploads/1/3/0/9/130969002/199795.pdfIn PDF document text
    • http://nagaxutunasom.22web.org/aprendizajes_clave_curso_secundaria.pdfIn PDF document text
    • https://cdn.sqhk.co/webunojixisa/Vhebaih/vigufonewetoxozezekeramem.pdfIn PDF document text
    • https://miwunukeje.weebly.com/uploads/1/3/4/5/134524605/1678178.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471711/normal_5ff96ef78fa49.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382948/normal_600b66aa8ee6e.pdfIn PDF document text
    • https://cdn.sqhk.co/genizataxom/L2iaha1/bewepolepizutebekax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481154/normal_601280cd7331d.pdfIn PDF document text
    • https://xojunujad.weebly.com/uploads/1/3/1/1/131164104/a4e98f2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448115/normal_5fdfb3bc5af5a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/whatsapp_status_sad_marathi_video.pdfIn PDF document text
    • http://vetuvawefaxuta.rf.gd/67092348200.pdfIn PDF document text
    • http://jepisaf.epizy.com/59153229226.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/moviesda_tamil_dubbed_movies_free.pdfIn PDF document text
    • https://s3.amazonaws.com/nevovumowa/atomic_mass_definition_chemguide.pdfIn PDF document text
    • https://s3.amazonaws.com/voxazedisula/66300419066.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuzo/rimirokuzonititus.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_off0000e657.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE657 4912 bytes
SHA-256: 0feda2f86c86ce650baac5072e5135053d56e6bcace035dcf202851754e54884
font_01_sfnt_off0000f70a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF70A 10280 bytes
SHA-256: 50d23f6db629d1ddc3d4a7e71ae9cb0a2ca64aa315d85e38670d36c333136879