Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f32eb0d0efaf219…

MALICIOUS

PDF

56.4 KB Authoring application: Nitro PDF
MD5: 589da2fc11fa2e9d5396514ffbf8d1b4 SHA-1: 3426c584f52b7c9eded2f4596249dadabb6831eb SHA-256: 0f32eb0d0efaf219abc90d6bed9620087aed321b645fec9362ad03bd4f395b78
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or a method to distribute malicious content indirectly. The ClamAV detection and ML classifier further support its malicious nature, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://rivelazioniprivate.org/uploads/1/3/0/5/130541817/sevudagizixamip_getolubifano_barirujepope_nutigifunigesa.pdf
    • http://neworleansgainswave.org/uploads/1/3/0/5/130539227/xiwolumituxowad_baxavilebelit_gilapativibun.pdf
    • http://fairvotepiercecounty.org/uploads/1/3/0/3/130323789/619736.pdf
    • http://amkconstructionri.com/uploads/1/3/0/5/130550982/5139280.pdf
    • http://misskatskinks.com/uploads/1/3/0/3/130313468/muner.pdf
    • http://mingateachers.com/uploads/1/3/0/6/130605104/fepufobe.pdf
    • http://406techteacher.com/uploads/1/3/0/5/130551270/adc60535939.pdf
    • http://ramonmaciamusica.com/uploads/1/3/0/6/130620888/ravajon.pdf
    • http://beautyparty.co.uk/uploads/1/3/0/6/130605174/cd8fb28b.pdf
    • http://nomoremondays.us/uploads/1/3/0/3/130323328/webuvaxowi-pokobamipoxiwo-kesuzexefenozuv-tajoronowinexu.pdf
    • http://misssupremepurityqueen.com/uploads/1/3/0/6/130620576/130620576.html#boney+m+hits+songs+free

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000012cb.bin
acd76c79837d994a00be1b0561136fbfb2b220bb40033627c8b2e436ee015493
pdf-font-stream PDF embedded font (sfnt) at offset 0x12CB 8788 bytes