Malicious PDF — malware analysis report

Static analysis result for SHA-256 1174ca26a04776d5…

MALICIOUS

PDF

34.0 KB Authoring application: SWFTools
MD5: 3eedc1078275e8acd9da4fd711bf45f8 SHA-1: b7833578ede11e1b4fed0954c7fb3003f52921cd SHA-256: 1174ca26a04776d5d3444280fbf74fa251c267a697c2ff10ab47dbec30cef5b9
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents, a technique often used for SEO spam or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically related to phishing or traffic redirection. No scripts were extracted, but the sheer volume of external links suggests a campaign to drive traffic or deliver payloads indirectly.

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://parttimesongs.com/uploads/1/3/0/5/130545745/5343910.pdf
    • http://myhealthadvice365.com/uploads/1/3/0/7/130740316/lelon.pdf
    • http://cheaptokeeptrees.org/uploads/1/3/0/4/130476502/fd79a560.pdf
    • http://detourtowonderland.com/uploads/1/3/0/6/130620393/2122509.pdf
    • http://myrnaphillips.com/uploads/1/3/0/8/130814076/f411907f.pdf
    • http://mikedonovancoronado.com/uploads/1/3/0/6/130605256/vuzatukezaxo.pdf
    • http://tanenwerx.com/uploads/1/3/0/4/130488196/3327944.pdf
    • http://socialcooling.org/uploads/1/3/0/2/130271097/lejaguvasutogebovos.pdf
    • http://scriptwriterscene.com/uploads/1/3/0/5/130540159/vujezekixalufap.pdf
    • http://treatsbyleets.com/uploads/1/3/0/7/130740264/9582206.pdf
    • http://nomegasitehere.com/uploads/1/3/0/5/130550752/009ac73f36143e.pdf
    • http://linden58.pleasingfood.com/uploads/1/3/0/4/130488590/130488590.html#night+splint+for+cubital+tunnel+syndrome

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e6e.bin
7e147cbb5108f96f13023d258d9bc3e3c94566878309c97c96fb5159abc88e9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E6E 7772 bytes

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