Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1d992531238a46c…

MALICIOUS

PDF

43.1 KB Authoring application: Pdftk
MD5: 4d5f5f4f60d116f1285de75ab74a9186 SHA-1: 303619005ae24b8073ca1a6a7a66740ffbdbb143 SHA-256: a1d992531238a46cbf311426120b982873b62a82b18713a952e8efaec20aa1b3
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, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a coordinated effort to manipulate search engine results or redirect users to malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic-driving intent.

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://www.thecraftmakershub.co.uk/uploads/1/3/0/6/130621782/e9a925cfb03be74.pdf
    • http://thesabrinatuning.com/uploads/1/3/0/3/130323224/2046169.pdf
    • http://www.indianabln.org/uploads/1/3/0/6/130639807/duwilovurizid.pdf
    • http://suryakiran.org/uploads/1/3/0/4/130483810/xenutalidud-toxefasekukaji-wutire-lakamifagaken.pdf
    • http://punani.world/uploads/1/3/0/5/130590295/rogeraj_taxawerowuxa_gajenijazibima_tetanemumadaj.pdf
    • http://neurosleepcenter.org/uploads/1/3/0/5/130588596/4417381.pdf
    • http://brickalation.com.au/uploads/1/3/0/7/130738591/4256647.pdf
    • http://finemexican.com/uploads/1/3/0/5/130590431/b246f5006516c.pdf
    • http://tranceportdestination.com/uploads/1/3/0/5/130590273/5b8f9d277c.pdf
    • http://www.mrc1989.com/uploads/1/3/0/4/130483924/ditekebidetakanaweko.pdf
    • http://fancher-sisters.rominastiebenphotography.com/uploads/1/3/0/7/130775217/130775217.html#flow+cytometry+apoptosis+positive+control
    • http://thesabrinatuning.com/uplo

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000052ba.bin
91c031ab7ce2b24fec26f92ee22c6da4fe4b48be77c7c4571f19dd196c3c21df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52BA 8064 bytes

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