Malicious PDF — malware analysis report

Static analysis result for SHA-256 52fd64523c988327…

MALICIOUS

PDF

39.6 KB Authoring application: Scribus
MD5: 6f129c8ba916903c5c82951c3e2123cb SHA-1: 7272bbca1b494bfc05bb53a39268ce9c54ff56c2 SHA-256: 52fd64523c9883275c972e16050427f8182c8e5775355108d425cf61bc048c52
160 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a large number of embedded external links to other PDF files, a technique often used for SEO manipulation or to distribute malicious content. The heuristic 'SE_LOLBIN_RUN_COMMAND' indicates the presence of instructions for executing Windows command-line tools, suggesting an attempt to run further payloads. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious classification.

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
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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://btbrv.com/uploads/1/3/0/6/130604014/xifodobatamapagopa.pdf
    • http://www.enochian.studio/uploads/1/3/0/7/130738710/7f1c19.pdf
    • http://spccmd.com/uploads/1/3/0/5/130590059/riwaxukumude.pdf
    • http://apkroad.com/uploads/1/3/0/7/130739401/jinipazolex.pdf
    • http://lotuscoaching4kids.com/uploads/1/3/0/7/130739625/5816415.pdf
    • http://abdelbassitsenhadji.com/uploads/1/3/0/4/130490643/sidifabuveti.pdf
    • http://guzoartstudio.com/uploads/1/3/0/5/130551696/9899094.pdf
    • http://vegasjunkmovers.com/uploads/1/3/0/7/130775651/negol.pdf
    • http://commandlineidiot.com/uploads/1/3/0/6/130621751/5513039.pdf
    • http://vtflowergardener.com/uploads/1/3/0/2/130273962/6cbf8f0a4.pdf
    • http://cofse.net/uploads/1/3/0/7/130776120/timozedusigutebalole.pdf
    • http://newmiltoneagles.org.uk/uploads/1/3/0/6/130603807/dexidizisazolavotin.pdf
    • http://www.aivets2018.eu/uploads/1/3/0/3/130313649/8986265.pdf
    • http://applesandbooks.com/uploads/1/3/0/7/130738790/kazezigikigatiroba.pdf
    • http://alternative-vaping.com/uploads/1/3/0/7/130776478/nuvamiforur.pdf
    • http://dallasboom.com/uploads/1/3/0/7/130738755/1595b7.pdf
    • http://leoinspired.com/uploads/1/3/0/5/130551898/1860505.pdf
    • http://mty.news/uploads/1/3/0/6/130605017/3106851.pdf
    • http://greenvillemaid.com/uploads/1/3/0/6/130604940/sudixikozizidu.pdf
    • http://www.unrpad.org/uploads/1/3/0/6/130603698/kodiwipasamupew.pdf
    • http://betterworld.co.nz/uploads/1/3/0/3/130313144/gubobit.pdf
    • http://4wys0r.bdgct.com/uploads/1/3/0/4/130488248/130488248.html#petrifilm+aerobic+count
    • http://betterworld.co.nz/uploads/1/3/0/3

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002423.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63
pdf-font-stream PDF embedded font (sfnt) at offset 0x2423 16036 bytes
font_01_sfnt_off00003b11.bin
705dcef89fdd672228680c99d93844494a5b7594e35fe61b4fa86de77595d90e
pdf-font-stream PDF embedded font (sfnt) at offset 0x3B11 7736 bytes