Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf75092f868195c9…

MALICIOUS

PDF

37.2 KB Authoring application: Poppler-utils
MD5: 67856b4d37c94922e8877d9fa500292c SHA-1: 656e189f8601235364047fef93364a9b31166728 SHA-256: bf75092f868195c950073813b081d0e4a65f90a08989632acc24761fbb11e956
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. This suggests the document's primary purpose is to redirect users to a multitude of other PDF files hosted on various domains. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent, likely related to phishing or SEO abuse. No scripts were extracted from this sample.

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://decorationballoons.com/uploads/1/3/0/6/130604637/vubekuzed.pdf
    • http://photoncat.com/uploads/1/3/0/6/130620632/zibijutokazafalod.pdf
    • http://mainlytechno.com/uploads/1/3/0/4/130483514/92670.pdf
    • http://neutress.net/uploads/1/3/0/7/130739871/ac6bdbf063e91.pdf
    • http://snapchatwellbeing.com/uploads/1/3/0/7/130775334/9703217.pdf
    • http://costamedicalmarijuana.com/uploads/1/3/0/2/130289334/vogawowakijepan.pdf
    • http://marinaruss.net/uploads/1/3/0/7/130740190/joxujitom.pdf
    • http://coffeeatyouroffice.com/uploads/1/3/0/5/130539139/gopofobo.pdf
    • http://www.wisteriariversbuyersclub.com/uploads/1/3/0/7/130775012/5203077.pdf
    • http://hokuainvestments.com/uploads/1/3/0/6/130605306/dawope.pdf
    • http://doggiestyles.net/uploads/1/3/0/6/130640232/95029442d144.pdf
    • http://m.kotihoitolakolibri.fi/uploads/1/3/0/6/130605152/rebiwufevujuwunoke.pdf
    • http://cybersecuritydomain.com/uploads/1/3/0/8/130874127/redomali.pdf
    • http://host90.carmichaelnl.com/uploads/1/3/0/6/130640021/130640021.html#teorias+de+la+abiogenesis+y+biogenesis
    • http://m.kotihoitolakolibri.fi/uploads/1/3/0/6/1306

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000038e4.bin
2b6c9b68b1b5f60b7d775c8f9d7d2f8826425459b04e35b80d60bc5c89fe0dd4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x38E4 8684 bytes

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