Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c450fe4fca2000b…

MALICIOUS

PDF

36.3 KB Authoring application: LibreOffice
MD5: fb624d5db43997a43e411c8bc2b4a110 SHA-1: c60a88e707425243f372d9147e233a6bd94e962e SHA-256: 8c450fe4fca2000b390bff9746adfba336cf6782c79ef96fd6489d37a755fb2c
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF file was flagged by multiple heuristics as malicious, including a critical PDF_SEO_LINK_FARM rule indicating a large number of external links. The ML classifier also assigned a high probability of maliciousness. The embedded URLs point to a network of domains that appear to be part of a link farm, likely used for distributing further malicious content or phishing. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://thedeliverator.online/uploads/1/3/0/2/130289236/warasemanuf.pdf
    • http://bloucheroregon.com/uploads/1/3/0/4/130436033/xavexiw.pdf
    • http://arareity.org/uploads/1/3/0/7/130776886/4424312.pdf
    • http://aspemag.com/uploads/1/3/0/7/130776054/dadixudikegivo.pdf
    • http://theburrowclub.com/uploads/1/3/0/8/130814173/1155974.pdf
    • http://bringyourinnerartistout.com/uploads/1/3/0/5/130539797/a1ba1.pdf
    • http://king-g.com/uploads/1/3/0/6/130605504/5552147.pdf
    • http://neurorehabkent.com/uploads/1/3/0/8/130814390/5354932.pdf
    • http://mycambodonuts.com/uploads/1/3/0/5/130589313/fac5b09c5e939e7.pdf
    • http://www.billsinclairintaglio.com/uploads/1/3/0/6/130620482/bisekame.pdf
    • http://collegeeducationonline.net/uploads/1/3/0/4/130483303/eeb928ec1c.pdf
    • http://kevinherron.net/uploads/1/3/0/7/130740056/3907464.pdf
    • http://casecatalysttraining.com/uploads/1/3/0/4/130483041/531273.pdf
    • http://www.m.mcintoshchurch.org/uploads/1/3/0/2/130291803/130291803.html#exerc%C3%ADcios+complemento+nominal+e+adjunto+adnominal+7+ano+com+gabarito

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003242.bin
e2da4819cd654f02c925fab08a87a85fdde6666a9e9c4cc6321ce5b1f141065e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3242 10200 bytes

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