Malicious PDF — malware analysis report

Static analysis result for SHA-256 3063bf5ceadea7f3…

MALICIOUS

PDF

28.4 KB Authoring application: Karbon
MD5: 787e44a834e9aad94e3e3a85f631b678 SHA-1: 0a0c8fe55401cb10f6e9534f2c1dfdfa8f099e69 SHA-256: 3063bf5ceadea7f3e2cc326a475ac38d683ff227bec5381d6d60027a26997739
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs pointing to other PDF documents. This behavior is indicative of a link farm, likely used for SEO manipulation or to distribute further malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the malicious nature of this file.

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://www.guidedfishingyukon.com/uploads/1/3/0/6/130604544/7905254.pdf
    • http://thoughttraders.com/uploads/1/3/0/6/130640048/dcd36db9c0d6.pdf
    • http://newspechomes.com/uploads/1/3/0/6/130604229/870331.pdf
    • http://southernor.com/uploads/1/3/0/4/130435524/maxozimosaji_kugifu_wukogeririb.pdf
    • http://rachelreding.net/uploads/1/3/0/7/130739835/10078.pdf
    • http://lilyyung.com/uploads/1/3/0/7/130739831/53350.pdf
    • http://htrionline.net/uploads/1/3/0/6/130622051/dibel-jisumetawapegox-nuniv.pdf
    • http://www.smiledefenders.net/uploads/1/3/0/7/130776141/nigadogodixipakeg.pdf
    • http://moneylifelessions.com/uploads/1/3/0/2/130289431/towuze.pdf
    • http://gcharlesdesignbuild.com/uploads/1/3/0/6/130621113/041f3145bc4e21.pdf
    • http://stellarromances.com/uploads/1/3/0/4/130489696/vuxenogipexutasa.pdf
    • http://unicornartisans.com/uploads/1/3/0/6/130604826/mogubanep.pdf
    • http://nikkirupu.com/uploads/1/3/0/6/130639728/mizapejopepodeveki.pdf
    • http://cld.nu/uploads/1/3/0/6/130620538/supikuvezo.pdf
    • http://bootsanddiamonds.net/uploads/1/3/0/8/130813427/5597061.pdf
    • http://iwa-tellmyanmar.com/uploads/1/3/0/6/130603944/malegaruxoz-lomibugoveroji-fimujera-gudopilebe.pdf
    • http://stayhererentals.com/uploads/1/3/0/7/130775729/b57ecc.pdf
    • http://beecityseattle.com/uploads/1/3/0/7/130739007/vopomamofirabi.pdf
    • http://thefriendlypear.com/uploads/1/3/0/8/130874485/fuxapab.pdf
    • http://cpanel.stefanaarnio.com/uploads/1/3/0/7/130775821/130775821.html#present+simple+tense+reading+text+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001678.bin
ee8d49526dd8db3e096ad7ffa26e76aafecdd7774594462d7947d9aa2f750d77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1678 5556 bytes

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