Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6f9a37a2c4941c8…

MALICIOUS

PDF

36.3 KB Authoring application: LibreOffice Draw
MD5: 70d69d9808f04b9c8e9c6eb3afa0cee5 SHA-1: df3156b90dd7551ee521ec1e80ea9a81dc1517ef SHA-256: a6f9a37a2c4941c82fbf99f2ef5e764c6ba2c3334c5be5001bbbc918700ea528
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified as a PDF_SEO_LINK_FARM heuristic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or malicious redirection intent. The embedded URLs likely lead to further malicious content or phishing pages.

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://nageelacampus.org/uploads/1/3/0/2/130288864/pinulutumowet.pdf
    • http://citizentrack.com/uploads/1/3/0/6/130604878/2442351.pdf
    • http://dunyaua.ru/uploads/2020/01/28/9644391.pdf
    • http://kepler-associates.com/uploads/1/3/0/6/130604620/mafepeniposarim_wefibisibomela_panazin.pdf
    • http://triosimplantdentallab.com/uploads/1/3/0/6/130621115/dosimudesu.pdf
    • http://linwoodparkhomes.com/uploads/1/3/0/6/130605373/16873.pdf
    • http://readytoadopt.ca/uploads/1/3/0/5/130590622/bafeno.pdf
    • http://christmasiscominghome.ca/uploads/1/3/0/6/130603852/7395190.pdf
    • http://nuobeijing.devsite-1.com/uploads/1/3/0/6/130604599/130604599.html#plant+cell+and+animal+cell+and+its+function

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000116b.bin
cae0c95a16cccce4fa9ef3ee271695363904a1a6f1992bd315c87ac653339c09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x116B 7780 bytes

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