Malicious PDF — malware analysis report

Static analysis result for SHA-256 369fd4054de03520…

MALICIOUS

PDF

60.1 KB Authoring application: PDFBox
MD5: 3be939f7fbeaf15b1a86c1e9b5438ab9 SHA-1: 1ac484eb0e0755361ecc557939c7e3f1f513dc14 SHA-256: 369fd4054de035206c9e334e0118f2a85ab99a5cea2134aa6bc168a2858f341b
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of a link farm designed to distribute malicious content or conduct phishing attacks. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing classification. No scripts were extracted from this sample.

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://helpgarret.life/uploads/1/3/0/7/130776741/bc23e30f.pdf
    • http://courtneygriggseportfolio.com/uploads/1/3/0/5/130589010/6848850.pdf
    • http://ourcatholicjourney.com/uploads/1/3/0/5/130540507/zibujilekesegob.pdf
    • http://webdisk.kticanali.com/uploads/1/3/0/6/130603682/2728760.pdf
    • http://stevesparke.com/uploads/1/3/0/5/130543134/wasebeku-fukirilisojasug-binokep-papopagu.pdf
    • http://genmakers.com/uploads/1/3/0/6/130639426/6957052.pdf
    • http://lsgreenclean.com/uploads/1/3/0/3/130323511/6564142.pdf
    • http://www.synergybarberbeautyarena.com/uploads/1/3/0/5/130551668/zofomepisudazefuko.pdf
    • http://bergeronauto.biz/uploads/1/3/0/7/130738679/b7a099730e02.pdf
    • http://matthewaedwards.com/uploads/1/3/0/5/130588999/punere_nidowane_toluf.pdf
    • http://alldolledup-dollclothes.com/uploads/1/3/0/6/130639308/d5a1c96.pdf
    • http://cigarclubmodesto.com/uploads/1/3/0/6/130620551/7737439.pdf
    • http://distancelearningtoday.net/uploads/1/3/0/2/130272985/130272985.html#mp3+surat+ayat+kursi

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_001_off00006793.bin
a459673a79b5a672d6059bf48792e41ef2c4a2a7bdc529ae945307d866c4c45d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6793 25728 bytes
font_01_sfnt_off00009445.bin
fa68b3ba2d938abf58b5eae5582db3da705f5acc08dfb7a0e8ce7f1dce014d17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9445 8040 bytes

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