Malicious PDF — malware analysis report

Static analysis result for SHA-256 be5bef8bfb90f882…

MALICIOUS

PDF

34.1 KB Authoring application: LibreOffice Draw
MD5: 5efbcae9e379bbaf90bc1e8ba26f988f SHA-1: a503c333e862203eb3e8bde5dc1ddeb770dd0811 SHA-256: be5bef8bfb90f8821de0bb0159ace89f6a4927ee5c96f8d568cbca6fc39c70dc
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or a distribution mechanism for further malicious content. The ClamAV detection further supports its malicious nature. No scripts were extracted from this sample.

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://cmifamily.com/uploads/1/3/0/7/130776065/e098b3.pdf
    • http://www.alexinahicks.com/uploads/1/3/0/2/130291441/3655009.pdf
    • http://natureinnny.org/uploads/1/3/0/4/130483109/a7b6415.pdf
    • http://musicstockphoto.com/uploads/1/3/0/7/130739341/db762.pdf
    • http://eycongrats.com/uploads/1/3/0/6/130604181/zolidifalowov-fuwinodorox.pdf
    • http://pogform.com/uploads/1/3/0/2/130289211/e0314e42df.pdf
    • http://wildwomanmetal.com/uploads/1/3/0/4/130477007/7236873.pdf
    • http://7magicflower.com/uploads/1/3/0/5/130589033/wotovulanoba-zodakolod-nanobugef-bavelulokudumiw.pdf
    • http://cpanel.torontoallergygroup.com/uploads/1/3/0/7/130776786/majegevo.pdf
    • http://matthewaedwards.com/uploads/1/3/0/7/130776814/vebujuj_vogesugumol_lowovozeteb.pdf
    • http://callandputoptions.net/uploads/1/3/0/7/130739080/2580.pdf
    • http://6502.fun/uploads/1/3/0/6/130604692/dezuzukizat.pdf
    • http://mninal.salon225.com/uploads/1/3/0/2/130289662/130289662.html#solving+logarithmic+equations+with+base+x

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e57.bin
9b4672ddaf760f4406c8caaf693cc182fa41860cae682bf4224bc7417d6a7e4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E57 7596 bytes

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