Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9dad42faa20b905…

MALICIOUS

PDF

43.0 KB Authoring application: Pdftk
MD5: 4e02410bb8a7a99c6b99e39119cea1ca SHA-1: 2e9be9557a11e8458d9930136afe587a353f5cf3 SHA-256: e9dad42faa20b90515eead786e4ae97e50f0a4407858753fa3acf8f57135028c
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents hosted on various domains. This technique is often used for SEO manipulation or to distribute malicious payloads. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent, likely related to traffic generation or phishing. No scripts were extracted from this sample, and the document body was heavily obfuscated.

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://secure.livingstonia.org.uk/uploads/1/3/0/6/130640024/641f26c28fab8c3.pdf
    • http://thelacunabrotherhood.com/uploads/1/3/0/7/130738993/7118625.pdf
    • http://www.engineerkyle.com/uploads/1/3/0/5/130544132/6dd6092339.pdf
    • http://chancetochoose.org/uploads/1/3/0/7/130740178/1716453.pdf
    • http://kidscreativestudio.com/uploads/1/3/0/3/130313035/lalepebu.pdf
    • http://storyspinner.net/uploads/1/3/0/6/130639751/ad3e4d156ded.pdf
    • http://dazluq.com/uploads/1/3/0/5/130543766/wijarolapatupape.pdf
    • http://unitedplanetearth.org/uploads/1/3/0/5/130543543/2267086.pdf
    • http://asisuppliermarketing.com/uploads/1/3/0/8/130813652/bivelebok.pdf
    • http://al7erak247.com/uploads/1/3/0/6/130639406/7603714.pdf
    • http://stullinvest.com/uploads/1/3/0/7/130775200/jimimog_nufoxuporopeten.pdf
    • http://waltschlender.com/uploads/1/3/0/5/130589108/9d280d0982a71e.pdf
    • http://kylebragger.net/uploads/1/3/0/5/130588336/8698476.pdf
    • http://mariaaki.com/uploads/1/3/0/7/130775987/rekorolunozaneg.pdf
    • http://brevardautodeals.com/uploads/1/3/0/6/130605135/4345034.pdf
    • http://eurekarally.com.au/uploads/1/3/0/3/130323789/vazes.pdf
    • http://vietcryptonews.com/uploads/1/3/0/7/130739087/vakuneje-jusedom.pdf
    • http://chatsaubain.be/uploads/1/3/0/2/130271031/nobejarud.pdf
    • http://brownwoodrealestateguide.com/uploads/1/3/0/8/130873850/xasigi.pdf
    • http://113366.co/uploads/1/3/0/6/130639438/4180043f.pdf
    • http://mydrugeducation.com/uploads/1/3/0/7/130740444/pixilomido_gawuzotut_fowitudedonilek_sigizi.pdf
    • http://patrickandirisa.com/uploads/1/3/0/7/130776249/1996098.pdf
    • http://doorbellring.com/uploads/1/3/0/5/130551335/5889900.pdf
    • http://webmail.evylareau.com/uploads/1/3/0/2/130288426/130288426.html#s+bahn+schedule+berlin

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ddd.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DDD 16036 bytes
font_01_sfnt_off00004518.bin
bcd9468af5acf5018c3797818255d90da9e6b58e27afa487c705c4ebeb60b242		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4518 8344 bytes

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