Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8d41d8df8d4f078…

MALICIOUS

PDF

35.2 KB Authoring application: Mobipocket Creator
MD5: cb06c4dc2eb2d01f49e0a24af75c19f2 SHA-1: d5a2003514b421bfd785362f8b07a15759f95c07 SHA-256: f8d41d8df8d4f0782329a05f264e79c86d9d651e77aba2c5a209a400dfdbdd6f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains a large number of embedded external links, identified as a 'PDF_SEO_LINK_FARM'. The heuristic 'SE_LOLBIN_RUN_COMMAND' indicates that the document contains visible instructions for executing Windows scripting tools, suggesting an attempt to automate interaction with these links or further malicious actions. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' confirms the malicious nature of the file, likely related to phishing or traffic redirection.

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://puffyshirts.life/uploads/1/3/0/6/130603749/410792.pdf
    • http://bartenderbitch.com/uploads/1/3/0/5/130589402/38d857.pdf
    • http://truestrengthfitness.org/uploads/1/3/0/5/130539763/polujawejofibid.pdf
    • http://riverpoolband.com/uploads/1/3/0/7/130775740/4782703.pdf
    • http://clarksontherapy.com/uploads/1/3/0/5/130546497/bebisufexisu-lewitumu-vorixuzejis-birojarogid.pdf
    • http://dogma531.com/uploads/1/3/0/7/130776394/639d378113.pdf
    • http://mint-uk.com/uploads/1/3/0/7/130775282/1906784.pdf
    • http://sertomaatthelake.com/uploads/1/3/0/6/130620674/wagajuv.pdf
    • http://intrinsiclifesciences.us/uploads/1/3/0/6/130639767/15acdc92df277e5.pdf
    • http://potenc-man.space/uploads/1/3/0/8/130813095/gibativak.pdf
    • http://cloggingstore.com/uploads/1/3/0/6/130604373/winogumidipa.pdf
    • http://lltraininginstitute.net/uploads/1/3/0/6/130604405/ab75bc2b.pdf
    • http://otstottdesign.com/uploads/1/3/0/4/130492689/c32a8.pdf
    • http://kosmokayla.com/uploads/1/3/0/6/130621043/1027401.pdf
    • http://bkrht5.bdgct.com/uploads/1/3/0/6/130620947/130620947.html#army+physical+fitness+test+push+ups

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031bb.bin
0463dbfea193617c752c586ee38864cbc4a10a89683a75d3a4a65656d02c2dc8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x31BB 7216 bytes

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