Malicious PDF — malware analysis report

Static analysis result for SHA-256 22c40bdf7fc8d989…

MALICIOUS

PDF

36.7 KB Authoring application: Pdftk
MD5: 5f028808c43f4f32915d1dcde4e25043 SHA-1: 32dd1583161689cf3981caf2bc2bf2ea57bba9dd SHA-256: 22c40bdf7fc8d989d4cf2426e6575a1f19ebe5f0dcf2bc8efa1a97690c649780
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery or execution methods.

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://townofgettysburg.com/uploads/1/3/0/5/130590589/muwawuzeneju.pdf
    • http://costperengagement.com/uploads/1/3/0/7/130738945/274b7938613d.pdf
    • http://sbhcoaching.com/uploads/1/3/0/3/130323738/zokenojot.pdf
    • http://ramitaleencafe.com/uploads/1/3/0/6/130639028/1341670.pdf
    • http://290pleasantstu313.com/uploads/1/3/0/7/130740514/pavusivuvama.pdf
    • http://drmallinaentclinic.com/uploads/1/3/0/2/130289367/5977126.pdf
    • http://artintimidatinglife.com/uploads/1/3/0/7/130739415/9110663.pdf
    • http://geleedegroseilles.org/uploads/1/3/0/7/130738991/4775342.pdf
    • http://newyorkstategrandcouncil.com/uploads/1/3/0/8/130874435/rapeliv_tiruvulen.pdf
    • http://www.mossandbriar.com/uploads/1/3/0/4/130476688/f70dc237d7.pdf
    • http://cozycabinsva.com/uploads/1/3/0/5/130546519/bewefitajezonezapu.pdf
    • http://blondabsgiftboutique.com/uploads/1/3/0/9/130969847/visipeno-letazom.pdf
    • http://portlandactual.com/uploads/1/3/0/2/130289232/bomin.pdf
    • http://www.simonrjacobs.com/uploads/1/3/0/2/130289274/xagibupurori.pdf
    • http://www.brocktonlandscaping.com/uploads/1/3/0/2/130289294/3d6abe7b.pdf
    • http://7q7me.slpny.com/uploads/1/3/0/2/130291438/130291438.html#icd+10+cm+code+for+sickle+cell+crisis

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000036a9.bin
e6b8fa7c79c0f8ccba010712208729a6141ddc8f38ca5481916762ad886a77e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x36A9 7332 bytes

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