Malicious PDF — malware analysis report

Static analysis result for SHA-256 969744f887b3d34d…

MALICIOUS

PDF

67.1 KB Authoring application: PDF Studio First seen: 2020-09-07
MD5: 700ee1ee7fa387ae9a70c0ff630ebb66 SHA-1: a3ffaee25d98d0cef92b0166473f0b53e9d26a2b SHA-256: 969744f887b3d34dc6bf0cfdcdcc2c948cb05767fc976b8906d5c59ec3de2efc
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links pointing to external PDF documents hosted on various domains. This technique is commonly used to create link farms for SEO manipulation or to distribute malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted, and the document body content was heavily obfuscated and unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://burgangt.com/uploads/1/3/0/6/130621896/xinixom-maruso-gudesovizubuxo.pdf In PDF document text
    • http://sentinel.ai/uploads/1/3/0/8/130814900/9790993.pdfIn PDF document text
    • http://reikienergiauniversal.com/uploads/1/3/0/2/130273982/fb9b64.pdfIn PDF document text
    • http://djspizza1.com/uploads/1/3/0/4/130477234/5844921.pdfIn PDF document text
    • http://unhappycamperstudios.com/uploads/1/3/0/5/130545199/744791.pdfIn PDF document text
    • http://mattoxtours.com/uploads/1/3/0/2/130291527/1268654.pdfIn PDF document text
    • http://liquidmetalbracelet.com/uploads/1/3/0/3/130323127/6441039.pdfIn PDF document text
    • http://arsxystica.com/uploads/1/3/0/3/130313038/fuxoz-tutapexasu-galawazawi.pdfIn PDF document text
    • http://columbiarockacademy.com/uploads/1/3/0/5/130541116/199314.pdfIn PDF document text
    • http://thesundaybaker.net/uploads/1/3/0/4/130483550/wozave.pdfIn PDF document text
    • http://famcoinsurance.com/uploads/1/3/0/5/130551033/76d450b40c66dc.pdfIn PDF document text
    • http://krowncustomcues.com/uploads/1/3/0/8/130813427/mumetipubob.pdfIn PDF document text
    • http://nutritioncapecod.com/uploads/1/3/0/7/130740493/jolexuxopafilor-luxupoli-zixubosedisem.pdfIn PDF document text
    • http://getfitbasics.com/uploads/1/3/0/2/130288455/46b6a.pdfIn PDF document text
    • http://webmail.mcintoshchurch.org/uploads/1/3/0/4/130483479/wiluje-tezejef.pdfIn PDF document text
    • http://host111.carmichaelnl.com/uploads/1/3/0/8/130874104/130874104.html#hsc+biology+textbooks+pdf+downloadIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000539b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x539B 16028 bytes
SHA-256: ca889182d22413b1a5b6446cd5d954c095bfc2c8b2fec1022b19199100617195
font_01_sfnt_off000067b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67B6 1388 bytes
SHA-256: 1723f1ced37cc89d69e30f3df6281c5e5fb8989544fd4587aa75b00c91af2fd0
font_02_sfnt_off000071dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71DC 8152 bytes
SHA-256: fe878ae7dd50a23f3641fd242bebce8c2cc0b8e34283e12ac2fb036550744788
font_03_sfnt_off000090a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90A7 20632 bytes
SHA-256: 5f0ff449105cd07586f9bd8def153e1aae8ddec638068fa4f53d5e86573fa32a

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