Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d00e3906c4ca8b3…

MALICIOUS

PDF

35.5 KB Authoring application: GIMP
MD5: 13994b41f4a092ff02380e1b7bbe063b SHA-1: 368fdef960fad1493a391fc3c1ec8a15c60c3dfb SHA-256: 8d00e3906c4ca8b332c52e0a682d62e934a79bf0404b839b88f3d191f86585e8
150 Risk Score

Malware Insights

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

The PDF was flagged by ClamAV as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and a machine learning classifier indicated a high probability of maliciousness. Static analysis revealed a PDF_SEO_LINK_FARM heuristic, indicating the document contains numerous external links. These links likely lead to phishing sites or further malware downloads, as evidenced by the embedded URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://padmasitaa.online/uploads/1/3/0/6/130639463/degogarelevas_dokid_tozapuxorupo.pdf
    • http://leahwoods.net/uploads/1/3/0/7/130740590/rubamirikut.pdf
    • http://avalonbeachpodiatry.com.au/uploads/1/3/0/2/130287413/pinadavunuvebes.pdf
    • http://global-solutions.org/uploads/1/3/0/6/130639309/valuw.pdf
    • http://dancinggoatsanctuary.com/uploads/1/3/0/6/130604283/130604283.html#budd+chiari+malformation+ultrasound

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001029.bin
4fdb4bfb745f7e3ac561d39e90182897aed2d9380200ae86c94bf0bc4471f3cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1029 7696 bytes

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