Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3ec9b64ed52e7c5…

MALICIOUS

PDF

40.0 KB Authoring application: QPDF
MD5: 3ef74c5e34339cf7d187fb2c884c3f2f SHA-1: 84e302fd5eae0650a0aac86c7f6c90e201c5856b SHA-256: f3ec9b64ed52e7c5ac99b7da05eee00ef7de5488101e12fb17effa21d5d28913
120 Risk Score

Malware Insights

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

The PDF file exhibits a critical heuristic firing for a link farm, containing numerous external links. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. The embedded URLs are likely part of a campaign to drive traffic to potentially malicious content.

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://nationalchristmasgreetings.com/uploads/1/3/0/2/130287307/kusomemenanijugekir.pdf
    • http://significadodeemojis.com/uploads/1/3/0/6/130604382/3507009.pdf
    • http://spayedkoolie.com/uploads/1/3/0/4/130435941/dokozupuf-fuzujezumat-vokaz-tokabotoza.pdf
    • http://100firesmoto.com/uploads/1/3/0/5/130588568/mofuvolusuxek.pdf
    • http://ferulafide.brgymahabangparang.com/uploads/2020/01/28/walozoki_lavexipodurotul_suliba_rujinefuronadep.pdf
    • http://lucasgarron.net/uploads/1/3/0/6/130604415/14e971c4.pdf
    • http://woodenboxprods.com/uploads/1/3/0/6/130604516/a504da486b.pdf
    • http://llnoble.net/uploads/1/3/0/6/130621418/ca4ce85430153.pdf
    • http://rusawaso.creamzdorow.ru/uploads/2020/01/29/1375474.pdf
    • http://distinctwealthmanagement.com/uploads/1/3/0/4/130488743/jogeponaw.pdf
    • http://geekpursuits.org/uploads/1/3/0/6/130639145/4ad203416b99.pdf
    • http://rwbickfordconstruction.com/uploads/1/3/0/6/130639876/4b745ae.pdf
    • http://moodlabnewlife.nl/uploads/1/3/0/7/130776279/130776279.html#ptc+thingworx+platform+architecture

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001371.bin
8e58e4315be0ea983d0477a0fb24e7158e555be57ce04a5ce0e9b1781400933e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1371 7900 bytes

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