Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc831db59d065f7e…

MALICIOUS

PDF

46.5 KB Authoring application: ImageMagick First seen: 2021-11-22
MD5: 11b04dc62bf9d8ccc3ee7f709b6cc547 SHA-1: 22d6c6e4dc12a51a964e62657096b788df14ed3c SHA-256: fc831db59d065f7eda6323e4bae8bae9f1f7aad2426c92fc2528751a546a5faa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The embedded URLs likely lead to further phishing or malware distribution pages.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 https://wofudiko.weebly.com/uploads/1/3/0/4/130491063/4448114.pdf In PDF document text
    • https://retunuvoso.weebly.com/uploads/1/3/0/4/130483142/255639.pdfIn PDF document text
    • https://lasuzadudubexar.weebly.com/uploads/1/3/0/4/130483606/6756938.pdfIn PDF document text
    • https://keganokalolin.weebly.com/uploads/1/3/0/3/130379921/kutoxime_miwujisu_buxulogitu_vakuralaguxo.pdfIn PDF document text
    • https://xenudusuxakul.weebly.com/uploads/1/3/0/3/130323302/2157824.pdfIn PDF document text
    • https://nufelefixideba.weebly.com/uploads/1/3/0/2/130289400/4560553.pdfIn PDF document text
    • https://vixokiru.weebly.com/uploads/1/3/0/4/130476469/jeluboviwufus.pdfIn PDF document text
    • https://rativoneku.weebly.com/uploads/1/3/0/2/130287495/nigulu_jadixex_solumatotaget_rusadazutokujed.pdfIn PDF document text
    • https://nanemawuval.weebly.com/uploads/1/3/0/3/130312984/21c69f1074c2f9.pdfIn PDF document text
    • https://tofuforisebize.weebly.com/uploads/1/3/0/2/130287875/jafimasupidoran-wamukobepeze-pavozititum-momawasovupux.pdfIn PDF document text
    • https://bajidobu.weebly.com/uploads/1/3/0/4/130483244/weseworova-kumupone.pdfIn PDF document text
    • https://wetivezoko.weebly.com/uploads/1/3/0/3/130313324/zunobuwun.pdfIn PDF document text
    • https://kezubulenijeni.weebly.com/uploads/1/3/0/3/130323220/miluxi.pdfIn PDF document text
    • https://xuwijugikukimo.weebly.com/uploads/1/3/0/2/130274088/130274088.html#free+christmas+piano+sheet+musicIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E9 8480 bytes
SHA-256: 6e8b92f77556ae94800afd2564e5c322ad768f5a0b365ae4a3c42378215900ce

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