Malicious PDF — malware analysis report

Static analysis result for SHA-256 80721d818eeba5fb…

MALICIOUS

PDF

49.3 KB Authoring application: Scribus
MD5: 6d274af878a0b6b19e1cf02b99827d2d SHA-1: b0dec466d0fd8a47e94b5a51caad2e0e438f8379 SHA-256: 80721d818eeba5fb3c1daaec349dd137cbd452fa420fc85a15dc1a0439ba1a1f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, masquerading as a download for 'Backtrack 5r3 iso free'. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the PDF_SEO_LINK_FARM heuristic indicate a phishing or traffic-driving campaign. The embedded URLs are likely used to distribute further malicious content.

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://tor.cloudycherry.net/uploads/2020/01/29/dojifawegelukib.pdf
    • http://streamlinenation.net/uploads/1/3/0/6/130639915/dixaxogakada.pdf
    • http://mojofinancialservices.com/uploads/1/3/0/6/130603906/8930534.pdf
    • http://roxandree.com/uploads/1/3/0/5/130588982/genovo.pdf
    • http://suejardin.studio/uploads/1/3/0/6/130603725/rativine_pepawewerixe.pdf
    • http://nw-churchofchrist.com/uploads/1/3/0/6/130640095/vojivawofusewo_popemuz_pumexujisamabif_togokev.pdf
    • http://caylahwestphotography.com/uploads/1/3/0/7/130739158/a806a0c1088.pdf
    • http://nursingarmpillow.com/uploads/1/3/0/7/130739153/130739153.html#backtrack+5r3+iso+free

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001202.bin
0a607e05a991e91cd614fdaf0dda1d436523e296cda9cfd8137df0853e8aa730		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1202 9120 bytes
font_01_sfnt_off00006940.bin
fd5f80c928a41697f05a8a9d996a29eb187ea710f31dd7faa306f8bad5585866		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6940 11444 bytes
font_02_sfnt_off00008244.bin
4d84cebc99c1248009179457a3752967ddc96f216f00a229403c23449a86f5b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8244 3872 bytes

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