Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6187ca73469e645…

MALICIOUS

PDF

78.2 KB Created: 2021-03-17 06:16:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ca39cfd1e6148b16e63137ff3509953d SHA-1: 5cc052dcae6f687909a508de8ae049b766975c5b SHA-256: b6187ca73469e6454f5123b5b5afa0a48bd1759611ebef8be1416e82f0b60d22
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL pointing to a suspicious domain, identified by heuristics as an external URI and an embedded URL. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a malicious site.

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://jacksth.ru/award?keyword=dictionnaire+technique+allemand+fran%25C3%25A7ais+pdf
    • https://cdn.sqhk.co/bezakebijuk/hdagiia/83299878025.pdf
    • http://getveran.site/jubasozopimigamulukscdp.pdf
    • https://cdn.sqhk.co/kovajivika/dDmhi0j/cup_stacking_game_video.pdf
    • https://cdn-cms.f-static.net/uploads/4451377/normal_60515a6a0f613.pdf
    • https://cdn.sqhk.co/fazovivum/ewhcSjb/puwafosa.pdf
    • http://test123test.xyz/79382514002eqjjr.pdf
    • https://cdn-cms.f-static.net/uploads/4464522/normal_603e512c3c38b.pdf
    • http://hookup682.site/h2_zoom_settingsepv81.pdf
    • https://static.s123-cdn-static.com/uploads/4368219/normal_5ff48fc73a6e7.pdf
    • https://static.s123-cdn-static.com/uploads/4480898/normal_5ffc869a45e21.pdf
    • https://cdn-cms.f-static.net/uploads/4488822/normal_604e17d2a784d.pdf
    • https://cdn.sqhk.co/febenanedibu/v86gfhc/loxakikawebadof.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/pisedij/19142263441.pdf
    • https://uploads.strikinglycdn.com/files/ba998805-5279-45e3-95c3-62222d717529/is_the_eotech_512_worth_it.pdf
    • https://s3.amazonaws.com/winumigutam/gozuruzokobapob.pdf
    • https://uploads.strikinglycdn.com/files/6804cdfd-7963-42e1-937e-5d1c5c300f07/batman_the_dark_knight_returns_wikiquote.pdf
    • https://s3.amazonaws.com/kubedukowug/macbeth_by_william_shakespeare_summary.pdf
    • https://uploads.strikinglycdn.com/files/478fcce5-eea7-4fb2-a7c1-a4dd85a56f38/57267908405.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cad8.bin
ad26d501e4aa00c797657529371fe064d7fd179a74dce52afa3dd8717a28cd8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCAD8 5584 bytes
font_01_sfnt_off0000dd5c.bin
96c6258e186414c7cdbe794f7433b58d00a43fa7a63c8c7b30a287a3700f7f05		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD5C 12388 bytes
font_02_sfnt_off0001050f.bin
295a74c0880602029034d0bad00e9c4432fbfc673297cd24b3bcff6375d303f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1050F 16300 bytes
font_03_sfnt_off00011aad.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11AAD 4324 bytes

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