Malicious PDF — malware analysis report

Static analysis result for SHA-256 eea4cf8671515d4c…

MALICIOUS

PDF

62.0 KB Authoring application: Karbon
MD5: d928b3be29b08fcc64dd586e6eefbce8 SHA-1: fa0c5c744a774f237b2816d00cc0801d76649926 SHA-256: eea4cf8671515d4cb93074ea1e6a4bd263dd5a953958aa129601d742b11bbb78
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to redirect users to malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the 'PDF_SEO_LINK_FARM' heuristic strongly indicate a phishing or redirection attempt. The document body mentions 'Ghostbusters' and a 'spirit guide', likely a lure to disguise the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://vytalmovementdance.com/uploads/1/3/0/5/130541131/0e0b00.pdf
    • https://jutaxadadime.weebly.com/uploads/1/3/0/5/130541661/aefe3f1dd.pdf
    • http://cuzblackgirls.com/uploads/1/3/0/4/130483781/dezanu.pdf
    • http://drmsanchez.com/uploads/1/3/0/6/130621546/sagomunavesuko-pawex-wezexobed.pdf
    • http://militarywivessurvivalguide.com/uploads/1/3/0/3/130313429/1250704.pdf
    • https://mibidugefavelu.weebly.com/uploads/1/3/0/5/130550844/liwedobisajufodiluma.pdf
    • http://minnesotaprayerhotline.org/uploads/1/3/0/6/130621257/zoziwogodusen.pdf
    • http://trouthide.com/uploads/1/3/0/2/130270994/130270994.html#ghostbusters+tobins+spirit+guide

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001046.bin
9ce5ed1752d050d82abb6bc00c517e4c1225350cd94b91e1504d609cff00945b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1046 9640 bytes
font_01_sfnt_off0000a207.bin
bfc94f57ca8d1c41586ee412b13cebbb5693f4bf0bfae274840b533e3dfe7b2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA207 16684 bytes
font_02_sfnt_off0000b860.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB860 2652 bytes

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