Malicious PDF — malware analysis report

Static analysis result for SHA-256 3822e711f77c871a…

MALICIOUS

PDF

44.5 KB Authoring application: Poppler-utils
MD5: 2789e8d772c29c95e07995379f0c0d7e SHA-1: e04e2e4c91dfe6c19611accd05bb2fa06e2c9b23 SHA-256: 3822e711f77c871afd7fdbbe930119620d16a6a735402a4a6c45883c7a7c1363
152 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier also strongly indicate maliciousness. The embedded URLs are likely used to redirect users to phishing sites or download further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://norwichmonument.com/uploads/1/3/0/2/130289274/7406289.pdf
    • http://noscopegaming.net/uploads/1/3/0/6/130620366/ruxuzemumem.pdf
    • http://norcalpomskies.com/uploads/1/3/0/4/130483830/1832a829.pdf
    • http://stpetedesignweek.com/uploads/1/3/0/6/130639285/kipuzikosubuwez.pdf
    • http://plannedgivingnews.com/uploads/1/3/0/3/130379289/7333753.pdf
    • http://raphaelduguay.com/uploads/1/3/0/2/130271102/4729264.pdf
    • http://graphicsylvia.com/uploads/1/3/0/7/130738637/bupagumadoxajopaze.pdf
    • http://mx.newhopebodyshop.com/uploads/1/3/0/6/130620217/3ba89ea642.pdf
    • http://nakedpavementbooks.com/uploads/1/3/0/6/130620912/48e8bb1b933.pdf
    • http://ragnarlegend.com/uploads/1/3/0/5/130588157/5933812.pdf
    • http://bjjfoku.com/uploads/1/3/0/7/130739571/vasatukanasi.pdf
    • http://hostmaster.helenlloydaudio.com/uploads/1/3/0/5/130590714/5016974.pdf
    • http://nisfannawaz.com/uploads/1/3/0/3/130313436/gejosowimivat-fenokedavob-dekedi.pdf
    • http://patriotreport.us/uploads/1/3/0/2/130287513/vuluvokujifej-dasuj-zitefejorofifi-vetetanubabiki.pdf
    • http://beijingshinryukan.com/uploads/1/3/0/2/130287296/nidexa.pdf
    • http://mmmees.com/uploads/1/3/0/7/130776225/virusejevezisonusiw.pdf
    • http://epiphanrentals.com/uploads/1/3/0/4/130483271/4825589.pdf
    • http://www.xiaojunhuang.info/uploads/1/3/0/7/130738944/zefumubuwifaki_dabefa_guxorakose.pdf
    • http://humbleinvesting.com/uploads/1/3/0/2/130289418/973378.pdf
    • http://petcura.net/uploads/1/3/0/7/130775726/a37fc.pdf
    • http://fieldpointstables.com/uploads/1/3/0/6/130620755/6005156.pdf
    • http://reenaoncanvas.gallery/uploads/1/3/0/6/130640033/4218362.pdf
    • http://nicolecatherine.com/uploads/1/3/0/2/130289734/8931558.pdf
    • http://candicemjewell.co.uk/uploads/1/3/0/6/130621264/nelavupomugerifosa.pdf
    • http://encore00028.voyagerwebsites.com/uploads/1/3/1/0/131071286/131071286.html#six+pack+abs+exercise+at+home+pdf
    • http://graphicsylvia.c

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003134.bin
e5ccfd3f99ebc43cdff36d9dbb23b893a35b61ae846029f319c9c4559a202207		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3134 16112 bytes
font_01_sfnt_off00004902.bin
af6be2a25234fde4a572129dca9cfdd6318e9555d834d6441e4c39cac917f61c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4902 9112 bytes

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