Malicious PDF — malware analysis report

Static analysis result for SHA-256 213959bbceffe3cf…

MALICIOUS

PDF

80.7 KB Created: 2021-02-19 06:13:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 2f14c0c73719d5ff45b53a8184f71205 SHA-1: 5b86c3274dfc6ec34f5355b55da236b71b4378c9 SHA-256: 213959bbceffe3cff636a87caa07781420a87cce557046720691f23bb71cdc32
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were extracted, the presence of a malicious URL points to a likely phishing or credential harvesting scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://crophysi.ru/123?utm_term=coding+projects+for+beginners+python In PDF document text
    • https://static.s123-cdn-static.com/uploads/4416502/normal_5ffe43684f96e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389792/normal_5fc762e0ef07b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383470/normal_5fd61e40714f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424331/normal_602c2e252e898.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487902/normal_5fd650e3a5582.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371246/normal_5ffcd22edffeb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384035/normal_5feda506bd44c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459477/normal_5fcea27531fcb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426701/normal_601e045d5a899.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469103/normal_60121811c6832.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369190/normal_600c0ed14f74d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vukenorap.epizy.com/94024934800.pdfIn PDF document text
    • http://tesuzegijibonu.epizy.com/d_d_5e_warlock_spells_guide.pdfIn PDF document text
    • http://matogojetize.rf.gd/9632107715.pdfIn PDF document text
    • http://xafonabikox.rf.gd/31658032575.pdfIn PDF document text
    • http://wilunimexa.epizy.com/ave_maria_gounod_soprano_sheet_music.pdfIn PDF document text
    • http://murobalebijuge.rf.gd/broly_original_transformation.pdfIn PDF document text
    • http://fizufanotujo.epizy.com/short_formal_dress_patterns_with_lace.pdfIn PDF document text
    • http://jaxilikujo.rf.gd/api_platform_pagination.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E3 5400 bytes
SHA-256: 711560abc0b12a663df3f30ae715b0729d18fd3eed57d99d7347913f2bcfc323
font_01_sfnt_off0000f946.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF946 11384 bytes
SHA-256: 20e40232d7744591dcfc346d77b0085f47ae88c6a5531d9cfa7230be839eeb69
font_02_sfnt_off0001203b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1203B 16132 bytes
SHA-256: 4f6d6443d667672870c38ce4e1d364e29e61a0df6fd2d8217a47270b9fff04c9

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