Malicious PDF — malware analysis report

Static analysis result for SHA-256 1886370d8c57accf…

MALICIOUS

PDF

38.8 KB Authoring application: Mobipocket Creator
MD5: bee35381e10da68a19c97202dd3760e3 SHA-1: 20ece52ad474a25d56841d341502ec445defb678 SHA-256: 1886370d8c57accfb88353b705d4f6308c199673dde1ff22580e1fea39a0d13c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection strategy. The presence of a 'download' lure and ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further indicates a phishing or malicious download attempt. The document body, though partially corrupted, mentions 'Vevo app free for pc' and includes multiple URLs, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 http://strouvse.ru/uploads/2020/01/28/3186849.pdf
    • http://shanebrelesky.com/uploads/1/3/0/2/130270743/dodezoxotop.pdf
    • http://mtdefender.com/uploads/1/3/0/3/130313249/1bf44c1206a289b.pdf
    • http://natedhill.com/uploads/1/3/0/2/130289406/xegidisazimomo.pdf
    • http://107redirect.com/uploads/1/3/0/5/130540037/9a874.pdf
    • http://mrsyatesclass.com/uploads/1/3/0/3/130313786/4112d6f15.pdf
    • http://artproracing.com/uploads/1/3/0/2/130272318/7826283.pdf
    • http://mlj-law.com/uploads/1/3/0/4/130435947/0e6828f.pdf
    • http://edutainmint.com/uploads/1/3/0/6/130604871/mudixewifugegel.pdf
    • http://cancerblingshop.com/uploads/1/3/0/4/130477083/5a952b2fe507.pdf
    • http://scottbrownconsults.com/uploads/1/3/0/7/130776252/7018336.pdf
    • http://dream-job.site/uploads/1/3/0/6/130603676/botexobunu.pdf
    • http://ndchair.com/uploads/1/3/0/2/130288775/130288775.html#vevo+app+free++for+pc

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001297.bin
9d47a9005988a2b396df4e0a9dac91385ba294297e895d9d0bd52e5672ae1c56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1297 8304 bytes

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