Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d308e6ee13a668f…

MALICIOUS

PDF

39.2 KB Authoring application: pdf-parser
MD5: ea6027af375194549783d87bf3bdcff5 SHA-1: e87d1fc5673082cbb9ac9fabdc327e590087b9cd SHA-256: 2d308e6ee13a668f3627a7725b03e24083fee9b95d3a42274a7f20b3c06a88b9
152 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to other PDF files. This suggests a link farm or redirection strategy, likely for phishing or malware distribution. The ML classifier and ClamAV detection further support its malicious nature. No scripts were extracted from this sample.

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://racetomilgravis.com/uploads/1/3/0/4/130435622/venakamatasabo-suxupabusa-rifotalovur-lujujaxixawi.pdf
    • http://sheffieldcctvsystems.com/uploads/1/3/0/2/130270941/1160801.pdf
    • http://bodyforbeing.com/uploads/1/3/0/6/130604220/1d68351.pdf
    • http://pok.canlisexhatti.online/uploads/2020/01/28/afafb.pdf
    • http://jogdance.com/uploads/1/3/0/5/130590443/4392118.pdf
    • http://freesellerclasses.com/uploads/1/3/0/2/130271035/janusurageloxarela.pdf
    • http://nmation.org/uploads/1/3/0/5/130589412/zibak_mavazadawef.pdf
    • http://miretiz.denta-s.ru/uploads/2020/01/29/fuwabajuwa.pdf
    • http://nemeda.weebly.com/uploads/1/3/0/4/130476221/mematewi-pekizugirowinof-bivubefoxumi.pdf
    • http://monicasfantasticcakes.com/uploads/1/3/0/4/130476205/6684536.pdf
    • http://erinschnair.com/uploads/1/3/0/4/130435520/d6314.pdf
    • http://theporterauthority.com/uploads/1/3/0/5/130545098/2243998.pdf
    • http://bexofuxov.fabrika-perchatok.com/uploads/2020/01/27/1850203.pdf
    • https://mogavaligowig.weebly.com/uploads/1/3/0/6/130604630/e9f794df68e0c5.pdf
    • http://neoshirtco.com/uploads/1/3/0/2/130291371/zipupeje_xojalojududi.pdf
    • http://dbtdelaware.com/uploads/1/3/0/6/130621317/jabulixumalaxosu.pdf
    • http://aerosportoutfitter.com/uploads/1/3/0/4/130483703/1247213.pdf
    • http://cardiffhomedesign.com/uploads/1/3/0/6/130622089/pakelapa.pdf
    • http://bradvanambergrealestate.com/uploads/1/3/0/3/130313391/bivefepidolaxijid.pdf
    • http://tcsonline.net/uploads/1/3/0/6/130620278/130620278.html#reading+comprehension+b2+exercises
    • http://dbtdelawar

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000015ae.bin
94ebbdb8be07c00e5a45a8322e9e54ace60bb76a6524d3f38c23633f87989407		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15AE 7764 bytes

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