Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc76a815131602bb…

MALICIOUS

PDF

37.8 KB Authoring application: Serif PagePlus
MD5: 4e458820231c0d135579ff661796d1cb SHA-1: 3a6bbc94a40224461475ff80cc26f3228811994c SHA-256: cc76a815131602bbc340181d0b143c9b92fac2db748c8f14670bcd41276ad720
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document exhibits a critical heuristic firing for a link farm, containing numerous external PDF links. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports its malicious nature. The embedded URLs suggest a redirection mechanism to a large number of similarly structured PDF files hosted across various domains, likely serving as a lure for phishing or malware distribution.

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://ziniak.com/uploads/1/3/0/5/130588221/01772ab021f4622.pdf
    • http://odbcafe.net/uploads/1/3/0/7/130775685/vadumasudaju.pdf
    • http://metuchenlibraryteens.org/uploads/1/3/0/3/130324050/8a636d.pdf
    • http://moovsterrelocation.com/uploads/1/3/0/6/130604473/tasemejelenutipomiwa.pdf
    • http://ak4h.org/uploads/1/3/0/6/130604022/vogik.pdf
    • http://hostmaster.ultrasoundbabyface.com/uploads/1/3/0/4/130476045/terewakaxojonoj.pdf
    • http://n-hairthailand.com/uploads/1/3/0/5/130590567/zetodakep-galonatap.pdf
    • http://elitepainrelief.net/uploads/1/3/0/3/130379244/675304.pdf
    • http://jmgscouting.com/uploads/1/3/0/6/130639903/pobowesawedej-taminifuwimegej-gufolexobomid.pdf
    • http://collecteva.com/uploads/1/3/0/6/130604233/ee668601.pdf
    • http://preparetocare.net/uploads/1/3/0/6/130620551/4293424.pdf
    • http://www.dohnfamily.com/uploads/1/3/0/8/130873962/2ad081ac05f0.pdf
    • http://stonesoaps.com/uploads/1/3/0/2/130287914/cbab090601.pdf
    • http://weslinams.com/uploads/1/3/0/4/130435937/a5209788.pdf
    • http://www.pleasantvalleybeekeeper.com/uploads/1/3/0/5/130550794/nuvofodisukuta.pdf
    • http://www.valkyriesurfer.com/uploads/1/3/0/8/130874522/af1ed.pdf
    • http://webdisk.groundedplantandfloral.com/uploads/1/3/0/2/130289310/koruliwepumukusitesu.pdf
    • http://mohammadshehataactor.com/uploads/1/3/0/4/130483879/922d23c8e6011.pdf
    • http://sanprado.net/uploads/1/3/0/4/130488223/130488223.html#ajanta+caves+tourism
    • http://hostmaster.ul

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003777.bin
e9aa506cbae2f4c5b1835add1f1aceee9b2f008f11700dcaf4c81b47e430cbe2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3777 7512 bytes

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