Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6a531e25da97d80…

MALICIOUS

PDF

43.2 KB Authoring application: Serif PagePlus
MD5: 5b4b67b8317a54d6abc70f220051341e SHA-1: 8b075953d79cb6c55aa5239298d4bab0e696daca SHA-256: e6a531e25da97d8050ea52ad2636cd9a798b25fa1defb100c29ab7a4de4e610d
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. The document body, though heavily obfuscated, contains references to 'Business english learning materials pdf' and includes a prominent URL, suggesting a lure.

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 https://bukozorofomav.weebly.com/uploads/1/3/0/2/130287995/wetodokulipatepen.pdf
    • http://newlifefitz.org/uploads/1/3/0/2/130292098/374f920.pdf
    • http://texanhomestudy.com/uploads/1/3/0/7/130740183/23122a2.pdf
    • http://mrsjlittlefield.com/uploads/1/3/0/3/130379347/758872.pdf
    • http://netwerkpijnrevalidatie.com/uploads/1/3/0/4/130478163/4354078.pdf
    • http://monocacycreekhouseconcerts.com/uploads/1/3/0/8/130873962/2698294.pdf
    • http://420fitness.jimmysjava.com/uploads/1/3/0/7/130775429/zajufisexo-nejazo-dubedomovoguniz.pdf
    • http://nuobeijing.devsite-1.com/uploads/1/3/0/8/130874535/130874535.html#business+english+learning+materials+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011d3.bin
a283d37b67f8a3cdedd6ec69f652decdf0e90aa86a2c74f788951c5ff89df8f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11D3 8472 bytes

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