Malicious PDF — malware analysis report

Static analysis result for SHA-256 40d71c683d798c7d…

MALICIOUS

PDF

41.4 KB Authoring application: PDFedit
MD5: 9e7ce4434488da7b29651d438398025d SHA-1: 58cd7d646cad9b5d5495922452cf39426f744ee4 SHA-256: 40d71c683d798c7da1041484626b72eb3343baadc64f8fcaf43975c38f4dba04
128 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDF files, a technique often used for SEO manipulation or to host phishing lures. ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious download intent. The presence of a visual download button also suggests a deceptive workflow.

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://khushalishah.net/uploads/1/3/0/7/130738798/7157489.pdf
    • http://jolyongray.com/uploads/1/3/0/2/130270966/42180cb60973019.pdf
    • http://bladeresharp.com/uploads/1/3/0/6/130604391/a0b3ba379d998bd.pdf
    • http://designwebframe.com/uploads/1/3/0/6/130620632/jagofarude.pdf
    • http://donotdemonetize.com/uploads/1/3/0/3/130323423/xukedijagazukefalu.pdf
    • http://biggamesforbigkids.com/uploads/1/3/0/5/130589297/jofuguvumoropit.pdf
    • http://sylvainetlesfilles.com/uploads/1/3/0/7/130776177/wowinakiwomike.pdf
    • http://dementiafriendlycapecod.org/uploads/1/3/0/5/130539654/5342718.pdf
    • http://babymello.com/uploads/1/3/0/4/130476148/japijikewomeb_kimuritunileke_simupib.pdf
    • http://www.iscebsga.com/uploads/1/3/0/6/130639349/zobovoxu.pdf
    • http://parcelshipping.international/uploads/1/3/0/7/130739381/2055641.pdf
    • http://desatascosbadalona.com/uploads/1/3/0/2/130272396/7210034.pdf
    • http://www.marellimedic.com/uploads/1/3/0/4/130490421/watifujivofotowa.pdf
    • http://email.capecoralchamber.com/uploads/1/3/0/8/130813325/xuwutatub.pdf
    • http://mrorejel.info/uploads/1/3/0/4/130489800/f84be855.pdf
    • http://arty-store.com/uploads/1/3/0/6/130620567/fuseza.pdf
    • http://fsbobeijing.com/uploads/1/3/0/6/130603847/cdaa4dc.pdf
    • http://x55fb.salon225.com/uploads/1/3/0/7/130739970/130739970.html#group+therapy+activities+for+adults+in+recovery
    • http://desatascosbadalona.com

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046aa.bin
a383f5d29c676eaef9378f726168ed487c8205adccb5bb69979adc9d3991f49b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x46AA 7588 bytes

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