Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd69c58c4dd50e75…

MALICIOUS

PDF

147.3 KB Created: 2020-12-20 14:46:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 22bdafcc747f33396c0c5a9d65a3898c SHA-1: 162ac20aff9bc2587483bd85cf6baeffe48dd8af SHA-256: dd69c58c4dd50e75e015ef0bf997a6605eb10e31a04a28a4de234922d52c6910
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified as malicious by ClamAV and an ML classifier. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'half elf sorcerer 3.5'. No scripts were extracted, but the presence of an external URI strongly suggests an attempt to redirect the user to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://traffset.ru/strik?utm_term=half+elf+sorcerer+3.5 PDF link annotation
    • https://sutudaxete.weebly.com/uploads/1/3/4/4/134497902/a62aac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376609/normal_5fa319b93f365.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412996/normal_5f9d03de12010.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391611/normal_5fd6fa623e1a9.pdfIn PDF document text
    • https://lepopitiw.weebly.com/uploads/1/3/4/7/134762721/dabemofowefowib-woriw-nujituz-majogevaronodi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368781/normal_5f91e13a19fed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367304/normal_5fc3dbb809008.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/vatosolikijike/jivafisanugusezet.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/pegag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76a7f43b-835a-4e45-9129-3b7f51a3fa3f/plastic_drawer_slides_replacements_3_4.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdc800ff65a9a5fd4920f89/t/5fdccb6457b8971cd7a8cc58/1608305508888/98812076557.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6457460f2895dc10c6861/t/5fcb57379d29b56e4d009b78/1607161655444/nizesuzirexif.pdfIn PDF document text
    • https://s3.amazonaws.com/ronenitevodo/independence_day_alphabet_wallpaper.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_off0001f1a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F1A8 5156 bytes
SHA-256: 0cdddef163deaf615ab5500a2d4dbede78808581e8bcd286ea3d3f7f7ea3d5ed
font_01_sfnt_off00020349.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20349 11480 bytes
SHA-256: 947e6326980ce3eb47c360aced07ef03bb34fe652050a81bfbbff5efdd4cc720
font_02_sfnt_off00022a9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22A9B 16144 bytes
SHA-256: 4b39140c652e6d058fe59e0172338ed7e0b8c56e7cdf0ba82c6c8c4172db5d18

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