Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c5f511bd0f01c5…

MALICIOUS

PDF

45.8 KB Authoring application: pstoedit
MD5: 4fb366a3ac1cb5379915ac3d07300c25 SHA-1: 3f00998804b2e701ca90263d54186819a293d32d SHA-256: a9c5f511bd0f01c5b4352f40b62688a68bc10ac4298d410cf67a99ded9efa09a
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, which is indicative of a phishing or content-luring campaign. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports this assessment. The embedded URLs are likely used to redirect users to malicious websites or download further payloads.

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://affectedfilms.com/uploads/1/3/0/6/130639471/2609727.pdf
    • http://wingingitarts.com/uploads/1/3/0/4/130435673/5ad52fa2.pdf
    • http://youtubevideoindir.club/uploads/1/3/0/2/130289218/e2c42.pdf
    • http://thesailingbroker.com/uploads/1/3/0/5/130588923/zumiv.pdf
    • http://ncsdactivities.com/uploads/1/3/0/4/130483429/ee3be.pdf
    • http://swboffice.com/uploads/1/3/0/6/130639962/5829963.pdf
    • http://tomryan.com.au/uploads/1/3/0/5/130543107/50868ca522.pdf
    • http://antiviruseprotectserviceonline.site/uploads/1/3/0/2/130272240/130272240.html#acordes+piano+bohemian+rhapsody

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012dd.bin
42bfb62bd3b5ce994cbf23cd78d18c485d576681c4fb06b466259f90a1dae66b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12DD 9196 bytes
font_01_sfnt_off00005d04.bin
12245e4678306973b9a8aef1e147f71bb514d50041ed9a3e9a220ee4a221ecf9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D04 18100 bytes
font_02_sfnt_off00007849.bin
83d89f79375f7f339e88070a8779324ce221c94923bff415e388e162fbc46cfe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7849 2604 bytes

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