Malicious PDF — malware analysis report

Static analysis result for SHA-256 c21b0ab8d7ad7d55…

MALICIOUS

PDF

58.6 KB Authoring application: Inkscape
MD5: 70d04fe2e58e71a6c093b2715c597b20 SHA-1: 5df0f3b1cfb5cc9c373671229296564ae7210d21 SHA-256: c21b0ab8d7ad7d55ae4153808bf1b40f52d713cee673b9946e558d74e759d82f
128 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to other PDF files. This is indicative of a phishing or malware distribution campaign. The ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports this assessment. The document body contains text related to 'Inkscape' and 'Ankush raja 2019 mp4 song', likely as obfuscation or lure content.

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://ricemachining.com/uploads/1/3/0/6/130605016/e0d4938d.pdf
    • http://campanilefestival.org/uploads/1/3/0/5/130550835/5a23120a51608.pdf
    • http://blackpearltattoosupply.com/uploads/1/3/0/4/130483540/6408767.pdf
    • http://ne-surgerycenter.net/uploads/1/3/0/5/130546971/nukosir_datofejijigaro_memixanatugoje_ridijod.pdf
    • http://katletki.com/uploads/1/3/0/6/130620429/ad1610ea7b2.pdf
    • https://wabapupimulo.weebly.com/uploads/1/3/0/5/130539247/jetopagofise.pdf
    • http://ok-lendava.si/uploads/1/3/0/6/130640049/94b42f71f03ffc.pdf
    • http://refreshingoasis.org/uploads/1/3/0/6/130620232/sixobofalunexoro.pdf
    • http://stokesed508webpage.com/uploads/1/3/0/6/130605156/130605156.html#ankush+raja+2019+mp4+song

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001206.bin
0354af91baf8596f99e63640dae1d0a3422c8e16e7db99ce02fc6be6cc0a2821		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1206 8964 bytes
font_01_sfnt_off00007e3f.bin
0a14766e00d1200e869ecf7302688cbd7b7d03f299d0d543ce44fe7c8b65ac23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E3F 9880 bytes
font_02_sfnt_off000098c9.bin
0a19d3ec01c2bd5f2da2e654894ff9caac3df97291af1acb5ff150be3e6b34cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98C9 18100 bytes

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