Malicious PDF — malware analysis report

Static analysis result for SHA-256 f85ddb99d3175362…

MALICIOUS

PDF

58.0 KB Authoring application: Scribus
MD5: 890fc3a0807e73976c6941d14fba1ac3 SHA-1: c24ef592442cbc350f6c119562890408c90c3540 SHA-256: f85ddb99d3175362578c545eeb7fd7eb7f52eeda8dc9ae106aeddcecf167087e
120 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV with the signature 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. Static analysis revealed a significant number of embedded external links, characteristic of a link farm designed to distribute malicious content. The primary heuristic firing, 'PDF_SEO_LINK_FARM', directly supports this observation, indicating the document's purpose is to lure users to potentially harmful websites.

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://sehatwalafiat.net/uploads/1/3/0/7/130738769/c2907932e5b7725.pdf
    • http://zenobunny.com/uploads/1/3/0/2/130273753/46de103adee.pdf
    • http://nottinghamkickboxing.com/uploads/1/3/0/2/130272369/gezuda.pdf
    • http://liamatera.net/uploads/1/3/0/5/130550826/1249836.pdf
    • http://icomedy.club/uploads/1/3/0/2/130273790/e33429f.pdf
    • http://adayofhope.co/uploads/1/3/0/4/130491356/2188478.pdf
    • http://tcsonline.net/uploads/1/3/0/3/130323211/130323211.html#vray+material+converter+3ds+max

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001459.bin
df79a855cf932eca8b212cad3611e1ba4d401edf36f05c3bc27b6ff1bc759965		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1459 13048 bytes
font_01_sfnt_off00008d73.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D73 16036 bytes
font_02_sfnt_off0000a1b3.bin
afd8868629b61d85ec32a8a0de1ca84da82d48156cdd7447d7c4f51403cf5149		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA1B3 5244 bytes

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