Malicious PDF — malware analysis report

Static analysis result for SHA-256 9aee45aaed76576a…

MALICIOUS

PDF

46.6 KB Authoring application: LibreOffice
MD5: 01e5c98ff84d1d0b9fc8f4cf50c43a6e SHA-1: 171c29cfb81e688a54349eaf536770621033b3f2 SHA-256: 9aee45aaed76576ae9a4ea0bbeeb9417e6e23c76cf7defc4d6298078b6e7bd6e
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection strategy. The ML classifier and ClamAV detection further support its malicious nature. The document body, while containing garbled text, indicates a lure related to an 'Eviction notice texas template', likely intended to trick users into clicking the embedded links.

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://nizhonipropertiesllc.com/uploads/1/3/0/2/130274098/4944353.pdf
    • http://white-poppy.com/uploads/1/3/0/6/130604185/pixosi-wivosodefowifas-lanawet-fuzeselafezako.pdf
    • https://gexeruvafov.weebly.com/uploads/1/3/0/5/130588934/bijiguna_bopafisose_polozobuxanib.pdf
    • http://xig.sakninhna.com/uploads/2020/01/28/9564110.pdf
    • http://poolpatioscreenrepairorlando.com/uploads/1/3/0/4/130483739/posez_gulaxatam_burizovenu_doguju.pdf
    • http://topfinance.ru:80/uploads/2020/01/28/futepujam_pogipemotalu_gapujodibax.pdf
    • http://dxcgabs.com/uploads/1/3/0/6/130604307/wegepigevutisen.pdf
    • http://cityonloc.com/uploads/1/3/0/6/130621094/130621094.html#eviction+notice+texas+template

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001218.bin
c6b5a15cfd152a734031f7723520a6425c15cacc8206020606e4c99a7810c108		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1218 9388 bytes
font_01_sfnt_off00006653.bin
4041238dea408863ec2319d26b45209edf60640bd8b857b7f4ab3132f7a7a5c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6653 16200 bytes
font_02_sfnt_off00007b34.bin
b0a6a33381002d1c379ca931d660fe98df7a73518421c8b234b9dc16af60e95a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B34 2696 bytes

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