Malicious PDF — malware analysis report

Static analysis result for SHA-256 27ce120a6f50fdc7…

MALICIOUS

PDF

36.5 KB Authoring application: Adobe PDF Library 9.0
MD5: ba111f9fe98db853fdf5dafe836ab108 SHA-1: 7131708511e6c5fa470f364586b1f21ab24e4158 SHA-256: 27ce120a6f50fdc7c0bf1a95b0abc9700514b9ef2a2f4d1876dda0db4e397809
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier also strongly suggest malicious intent. The embedded URLs point to a network of domains, likely serving as a link farm to redirect users to malicious content or phishing pages. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://moreministries.info/uploads/1/3/0/2/130289179/neloxikubekazo-xakine-fodigadiso.pdf
    • http://friendibles.com/uploads/1/3/0/7/130738785/setexujawikosug_lofagare_tupodepelu.pdf
    • http://eventsbylora.com/uploads/1/3/0/5/130551330/b6f9d96.pdf
    • http://ezwoodtools.com/uploads/1/3/0/8/130874490/zolaboxapapufab.pdf
    • http://thetexasplug.com/uploads/1/3/0/5/130551057/soxebu.pdf
    • http://fiftybucksaweek.com/uploads/1/3/0/3/130323164/4842142.pdf
    • http://campkennedy.com/uploads/1/3/0/6/130621852/wumoj-kipuxepi.pdf
    • http://szconstructionweimartx.com/uploads/1/3/0/6/130621545/rubepilubabuja.pdf
    • http://beeswim.com/uploads/1/3/0/7/130775309/1617977.pdf
    • http://butterflykissescrafts.com/uploads/1/3/0/5/130588289/piverizez.pdf
    • http://bordercollieevents.nl/uploads/1/3/0/6/130620345/xunuwelawikotemituz.pdf
    • http://myshermer.net/uploads/1/3/0/4/130476262/769f61671.pdf
    • http://lucidpapercuts.com/uploads/1/3/0/5/130538988/sedifepase_wopele_gapubapixek_pimemapanejos.pdf
    • http://bethbailis.com/uploads/1/3/0/6/130604564/92591116ffddcab.pdf
    • http://v0wm9.salon225.com/uploads/1/3/0/5/130544437/130544437.html#frequency+distribution+table+for+grouped+data+median

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000355f.bin
bbd58cd965100caaafbce2ce27f8759d4a8f0a51f6004892b7304c9708b18a08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x355F 7708 bytes

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