Malicious PDF — malware analysis report

Static analysis result for SHA-256 a823794a0fd66caa…

MALICIOUS

PDF

38.6 KB Authoring application: OpenOffice.org
MD5: 4687475b4e16c0edd0e988c4c6227b38 SHA-1: 82fdcc522066c3b3c9c3bb55e7a5405c3462c204 SHA-256: a823794a0fd66caaf0a61dfcaee770000403e20306c99d80286034e1dd2787ca
128 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, many of which appear to be SEO-optimized with numeric slugs, suggesting a link farm designed to redirect users. The heuristic 'SE_INVOICE_LURE' indicates the document's content is likely a fake invoice or payment request, intended to trick the user into clicking the malicious links. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing and traffic redirection nature of this file.

Heuristics 4

  • 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
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://brynmawrrestaurants.com/uploads/1/3/0/6/130639867/wozimivuvalud-vawituvis.pdf
    • http://theeraofsuggestion.net/uploads/1/3/0/3/130379182/6f99b9ed.pdf
    • http://ankletops.com/uploads/1/3/0/4/130483852/9357460.pdf
    • http://kittenconvict.net/uploads/1/3/0/6/130604191/molof.pdf
    • http://artfullnessbymarlene.com/uploads/1/3/0/6/130621369/jowukejuguwuzunapije.pdf
    • http://tcsonline.net/uploads/1/3/0/7/130740249/608628.pdf
    • http://thejesusmission.com/uploads/1/3/0/4/130483302/c9371150d2d.pdf
    • http://a-listcbd.com/uploads/1/3/0/7/130739043/4325796.pdf
    • http://irisvanheesewijk.nl/uploads/1/3/0/3/130379423/zaviris_jigenegene.pdf
    • http://mail.boodschappen-eerherstel.net/uploads/1/3/0/3/130313149/duxakekeb_wubebit_zadiseb_genobur.pdf
    • http://comsycon.com/uploads/1/3/0/6/130620172/vuvatakadet-zovud-favuxozevagulix.pdf
    • http://laurenyoungforboe.com/uploads/1/3/0/3/130312969/lesizajidotosesesidi.pdf
    • http://shutter-craft.com.au/uploads/1/3/0/9/130969312/3248090.pdf
    • http://pink-halo.org/uploads/1/3/0/3/130313262/pewofipemawulofug.pdf
    • http://mx.northernillinoishostasociety.org/uploads/1/3/0/4/130477490/9202766.pdf
    • http://nelsonmassage.com/uploads/1/3/0/7/130740561/nawinewalovumip_vipibumopusip.pdf
    • http://milexy.com/uploads/1/3/0/5/130545434/6925935.pdf
    • http://missfitonline.com/uploads/1/3/0/7/130740257/gojamali-batijofagiwev.pdf
    • http://cultofcardboard.com/uploads/1/3/0/5/130545421/6140029.pdf
    • http://m999g.salon225.com/uploads/1/3/0/5/130551188/130551188.html#accounts+payable+objective+for+resume

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000036d5.bin
7d948d87f630e1c8346e39f4809d26b4ab06d2abdaeec3423deb7acecf196ec4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x36D5 8388 bytes

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