Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0ce8c545ccd336c…

MALICIOUS

PDF

41.3 KB Authoring application: OpenOffice.org
MD5: 6ed11ee33a932c7ecc3c2b9265e0e725 SHA-1: 83f0a79d5a6ed843e7f728f93f255834679fa13e SHA-256: b0ce8c545ccd336c798bf015526a382ee1a5f6bbe66f03128ce083fb9a74f2f5
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 links to external PDF files hosted on various domains. This behavior is characteristic of a link farm used to distribute malicious content or conduct phishing attacks. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing and redirection intent.

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://carmirrorreplacement.co.za/uploads/1/3/0/5/130588542/jeneg.pdf
    • http://acikhatal.com/uploads/1/3/0/6/130620677/7020568.pdf
    • http://vesselhouse.co/uploads/1/3/0/7/130775201/povifofijojun.pdf
    • http://mta-sts.bachschoolorkesten.nl/uploads/1/3/0/4/130435842/1457960.pdf
    • http://misspeggysdogwalking.com/uploads/1/3/0/5/130588980/6740814.pdf
    • http://muwwrestling.com/uploads/1/3/0/7/130739967/wijuwufevotofuzag.pdf
    • http://mldreamscape.com/uploads/1/3/0/7/130739234/fozurobitelufon-gewowoboxo-jifajuzi-birevajididekun.pdf
    • http://infectiousproductions.com/uploads/1/3/0/7/130775883/vakemanaxot.pdf
    • http://mksplumbingsocal.com/uploads/1/3/0/6/130620637/76926.pdf
    • http://coltsound.com/uploads/1/3/0/2/130272352/87430fe2aa2e342.pdf
    • http://orvjamboree.org/uploads/1/3/0/2/130288488/ae2aef937e3.pdf
    • http://www.wotokenone.com/uploads/1/3/0/8/130814856/625611.pdf
    • http://mx.letiziaiannaccone.com/uploads/1/3/0/6/130604191/130604191.html#ischemic+cascade+stroke+ppt

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003362.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3362 16036 bytes
font_01_sfnt_off00004a7c.bin
8f8755a31b03e8cf37e85393c3be158544ba122a7b103461e0d4febad798b75e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A7C 7676 bytes

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