Malicious PDF — malware analysis report

Static analysis result for SHA-256 858a5571a259780a…

MALICIOUS

PDF

44.8 KB Authoring application: Adobe PDF Library 9.0
MD5: f81e8f3597ea16d07534ddd2656fc65b SHA-1: ab0126faf04cf86633a6ea67eb62507afcd4b888 SHA-256: 858a5571a259780a9dafc92bc781a11db2085b22cf56941bb4fffb1d82722e01
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files hosted on various domains, indicating a link farm or redirection strategy. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly suggest malicious intent, likely phishing or malware distribution. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://rockdaletenniscenter.org/uploads/1/3/0/6/130639363/4608136.pdf
    • http://the-b-hive.com/uploads/1/3/0/5/130546432/pawiwevomusosog_donixoxup_mobovida.pdf
    • http://opynestrategies.org/uploads/1/3/0/4/130488251/c80c0d74144f2.pdf
    • http://blubloggs.com/uploads/1/3/0/5/130588989/23e79.pdf
    • http://triadageless.com/uploads/1/3/0/7/130738732/f926e73.pdf
    • http://sugooi.com/uploads/1/3/0/2/130287914/acb3755fec.pdf
    • http://suckerbeagle.com/uploads/1/3/0/2/130289681/paxaxexefisusep-moketu-xoredozofet-pomakexexutujif.pdf
    • http://petrosahari.com/uploads/1/3/0/3/130313105/8491677.pdf
    • http://danielamansfield.com/uploads/1/3/0/8/130814423/3f9b0e1f5d8.pdf
    • http://bodydelux.com/uploads/1/3/0/6/130620503/7255112.pdf
    • http://cascadesoft.net/uploads/1/3/0/4/130483863/zidabof-gokapavuvipibaw-logukutubi-mivujexisenup.pdf
    • http://littledreamers.net/uploads/1/3/0/6/130640003/domosanome.pdf
    • http://bestfriendguidetoeverything.com/uploads/1/3/0/6/130604475/valofiletal.pdf
    • http://canberry.net/uploads/1/3/0/5/130543772/dijekawav-zaxow-fiduloneguno-basizapena.pdf
    • http://www.mckinneydoctor.net/uploads/1/3/0/3/130323328/ef9a52799b1.pdf
    • http://cams-collection.com/uploads/1/3/0/6/130639652/9dd75216.pdf
    • http://thehappygirlstore.com/uploads/1/3/0/4/130489172/refuvokewavuf-kawosisawunafel.pdf
    • http://aroundtheclocktots.gammaxiques.org/uploads/1/3/0/2/130271153/130271153.html#the+wizard+of+oz+somewhere+over+the+rainbow+chords
    • http://cascadesoft.net/uploads/1/3/0/4/130483863/zidabof-goka

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030cc.bin
83459e82cebe561b9e65dda6a09953c9e35f75e5df0fa62a624e1833cc5b8086		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30CC 1708 bytes
font_01_sfnt_off000038bd.bin
7452b6b49b2d67df973eecb7580c7a2fe344bf55d7b957b3ade50b6969c50269		 pdf-font-stream PDF embedded font (sfnt) at offset 0x38BD 16068 bytes
font_02_sfnt_off0000506f.bin
0d2cf3db3bd6e76b4bce2f38ea807eb24157c4cf35aea02f4cbd595415ec19e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x506F 8516 bytes

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