Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f6cf8fcec86c17d…

MALICIOUS

PDF

32.1 KB Authoring application: Karbon
MD5: 648bff008a26363bfcda8994c13513a7 SHA-1: d4352c4539f1a393c104d9ddf0ea32be96b35c4b SHA-256: 8f6cf8fcec86c17d85d89b4356b5b07d4bc8adb95f21ff0a2f796a81700cc4fe
120 Risk Score

Malware Insights

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

The PDF file exhibits a critical heuristic firing for a 'PDF_SEO_LINK_FARM', indicating a mass of external PDF links. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or redirection-based attack. The embedded URLs are likely part of a campaign to distribute malicious content or lead users to phishing pages.

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.michiganmicropigmentationcenter.com/uploads/1/3/0/6/130639235/buvovi.pdf
    • http://lykesfloridaolives.com/uploads/1/3/0/2/130273584/loxitinuf_vadejil.pdf
    • http://lkradio.online/uploads/1/3/0/7/130739200/df9d1.pdf
    • http://montglass.com/uploads/1/3/0/6/130604317/2923421.pdf
    • http://softandshiny.com/uploads/1/3/0/7/130775544/6d6e74e0a8.pdf
    • http://www.onlinedealsforguys.com/uploads/1/3/0/2/130272286/miduvoj-vejidakakogunu-wubozanu.pdf
    • http://coastalbluefarm.com/uploads/1/3/0/8/130874458/folefovobexaz_buxakanu_bopozebuvo.pdf
    • http://opvakantie.org/uploads/1/3/0/4/130476339/04fb793ee4656db.pdf
    • http://emilyguild.com/uploads/1/3/0/8/130814353/d3a25a2b2.pdf
    • http://utahprospects.com/uploads/1/3/0/5/130546385/718ccd33d.pdf
    • http://wazyshairsalon.com/uploads/1/3/0/6/130621874/7960994.pdf
    • http://ocumoney.com/uploads/1/3/0/3/130323180/xobelojomanag.pdf
    • http://astridbadell.com/uploads/1/3/0/5/130590353/wezugu.pdf
    • http://zikabrazil.com/uploads/1/3/0/4/130483416/30fd6b3db.pdf
    • http://hostmaster.heartrhythmmeditation.co.uk/uploads/1/3/0/8/130874563/5d9506846.pdf
    • http://moodlabnewlife.nl/uploads/1/3/0/7/130775741/130775741.html#er+diagram+for+ticket+booking+system

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000253e.bin
682388d981e710023c262baeef479d42181a4cb9ef3065ef63d376ae83f44a01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x253E 6908 bytes

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