Malicious PDF — malware analysis report

Static analysis result for SHA-256 66dbf274efdd516b…

MALICIOUS

PDF

38.6 KB Authoring application: ImageMagick
MD5: 5ac5bb68e2b5067b123e54f6891c6b95 SHA-1: 4a97a5aad8ebece17b184e8b269391782a597b40 SHA-256: 66dbf274efdd516bd9c4514c0bd19865de3dcdfaa6d69fd4b431cb3732d3fcde
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO spam or to distribute further malicious content. ClamAV identified this as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', indicating a phishing or traffic redirection scheme. The document body is heavily obfuscated and contains no clear user-facing text, suggesting its primary purpose is to host these links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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
  • 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://thebandbaltimore.com/uploads/1/3/0/7/130776174/vonifixisonema_febitizewalawi_gezuparone_zexetenubo.pdf
    • http://absoluteventoparty.com/uploads/1/3/0/5/130547024/lezonagakoxames.pdf
    • http://decorativeoutfitters.com/uploads/1/3/0/5/130588258/c59d7.pdf
    • http://www.popupgift.shop/uploads/1/3/0/8/130874118/forepodemirekebe.pdf
    • http://criticalthinkingisrequired.com/uploads/1/3/0/6/130604694/ragem-resatenev-lipefupofuf-riwakediwaxe.pdf
    • http://shoprubyowl.com/uploads/1/3/0/8/130874509/2389078.pdf
    • http://jennaluna.com/uploads/1/3/0/2/130288419/886291.pdf
    • http://vilagetulio.com/uploads/1/3/0/6/130640028/3394070.pdf
    • http://gruppit.net/uploads/1/3/0/8/130814783/lewevaperigefe.pdf
    • http://bakingwithlisey.com/uploads/1/3/0/6/130639935/720218.pdf
    • http://bluefinsushichatham.com/uploads/1/3/0/2/130287881/peragekazubakugovi.pdf
    • http://colacotwayartstrail.com/uploads/1/3/0/4/130435755/4893593.pdf
    • http://mokka.app/uploads/1/3/0/6/130640006/wirekezavadako_xatudepotawuku_buzorawuvodare_xudopimekaxine.pdf
    • http://www.oilbalance.com/uploads/1/3/0/7/130740209/nanavuwifomorejax.pdf
    • http://meudinheiro.info/uploads/1/3/0/4/130477719/dekidifo_rubojiluroz_zinukojekepib.pdf
    • http://thegirlsareallright.com/uploads/1/3/0/7/130775775/wapine.pdf
    • http://neisweets.com/uploads/1/3/0/4/130436068/4116764.pdf
    • http://malonegroupdesign.com/uploads/1/3/0/9/130969403/694643.pdf
    • http://kjtravels714.voyagerwebsites.com/uploads/1/3/0/2/130289508/130289508.html#sinuses+and+eustachian+tube

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000039d3.bin
0e32135e30c13ceb4bf8bafd090f4012b7663bb8db88ac6c6eb35206e753b215		 pdf-font-stream PDF embedded font (sfnt) at offset 0x39D3 7708 bytes

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