Malicious PDF — malware analysis report

Static analysis result for SHA-256 08f8950aeba0e4f8…

MALICIOUS

PDF

41.0 KB Authoring application: PDF Studio
MD5: af9131360a953caa5c316c9f6ad507a3 SHA-1: 76cd3144597557ef9481d2ef4f5df75607686381 SHA-256: 08f8950aeba0e4f8db8f481ddd8c7622bf07b07f2ca2429f1fa6450cd26f8df0
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, and the document body is heavily obfuscated, making a precise determination of the final payload difficult.

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://trevordewitt.com/uploads/1/3/0/3/130379770/gimetoju_riwuzexevafal_kibadiwo_movekosig.pdf
    • http://digitalmarketingscout.com/uploads/1/3/0/4/130483248/sepikigokegemukojiv.pdf
    • http://angeleycollection.com/uploads/1/3/0/6/130605324/5348923.pdf
    • http://minecraftray.site/uploads/1/3/0/4/130483576/rowiz.pdf
    • http://www.pillowsforhope.com/uploads/1/3/0/4/130483625/kixasukenufujeg.pdf
    • http://tjrothconstruction.com/uploads/1/3/0/7/130740598/f73f5494a30.pdf
    • http://hmlmedia.co.uk/uploads/1/3/0/6/130640069/d83aa268d60675.pdf
    • http://mohnayminks.com/uploads/1/3/0/4/130476389/vovonabutejum_jukaf.pdf
    • http://www.hcbw.org/uploads/1/3/0/6/130622024/jemotelazefa.pdf
    • http://amazingamericanstv.com/uploads/1/3/0/5/130588850/3044799.pdf
    • http://theoperapreneur.com/uploads/1/3/0/5/130546136/9899216.pdf
    • http://pacificministriesassociation.com/uploads/1/3/0/6/130639962/fiwimuf-mimabobesuf.pdf
    • http://pvjv.com/uploads/1/3/0/4/130489564/vogedaxetigif-ginuxelamiroduw.pdf
    • http://kylaconner.com/uploads/1/3/0/6/130621477/tavax.pdf
    • http://messybeards.com/uploads/1/3/0/4/130491319/dedipifule-xedafemuf.pdf
    • http://strongrootsfoundationmn.org/uploads/1/3/0/2/130270859/7843424.pdf
    • http://mx.floridatennismagazine.com/uploads/1/3/0/5/130590474/e223b8.pdf
    • http://carroattrezziusati.com/uploads/1/3/0/2/130274282/3966940.pdf
    • http://thomastrevethan.com/uploads/1/3/0/4/130476104/2933625.pdf
    • http://jemstonefs.com/uploads/1/3/0/6/130604988/7478870.pdf
    • http://masterkidscyprus.com/uploads/1/3/0/5/130588529/e4f1958c31354.pdf
    • http://theapexbasketballtraining.com/uploads/1/3/0/3/130379821/bemevep.pdf
    • http://74-123-79-15.mgwnet.com/uploads/1/3/0/4/130476981/130476981.html#convert+mm+to+square+inch+formula
    • http://ogino-mpe-lab.dana-farber.org/uploads/1/3/0/5/130540824/gezew.pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003b29.bin
ef6ac5cb8a8c10ee6c2832661d2d1262d9f0cd3bed98bd9f7b2936b9e620c5cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3B29 9080 bytes

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