Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8a6955dbfac4bdc…

MALICIOUS

PDF

20.3 KB Created: 2019-05-02 05:18:42 +01:00 Authoring application: mPDF 5.7
MD5: 7bf9a03be0e587b4149132dbe45ff201 SHA-1: 51734c6c362b2eab537bd38a992cec0792f39f39 SHA-256: c8a6955dbfac4bdcfec487fa3315c47d1776a4ddc25053c6677c6773bf034db4
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier as malicious and contains a large number of embedded links to external PDFs, indicative of a link farm or redirection scheme. The primary attack pattern involves luring users to click these links, which likely lead to further malicious content or phishing pages. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 2

  • 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.
  • 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://kiteeearpdf.myhome.cx/3f218f216f217f217f214/Killstraight-A-Western-Story-by-Johnny-D-Boggs.pdf
    • http://kiteeearpdf.myhome.cx/2f219f219f211f218/Killstraight-A-Western-Story-by-Johnny-D-Boggs.pdf
    • http://kiteeearpdf.myhome.cx/2f219f212f213f212/Hard-Winter-A-Western-Story-by-Johnny-D-Boggs.pdf
    • http://kiteeearpdf.myhome.cx/2f219f217f218f211/Greasy-Grass-A-Story-of-the-Little-Bighorn-by-Johnny-D-Boggs.pdf
    • http://kiteeearpdf.myhome.cx/6f218f217f212f219f216/Purgatoire-by-Johnny-D-Boggs.pdf
    • http://kiteeearpdf.myhome.cx/2f219f212f216f212/Doubtful-Ca-on-by-Johnny-D-Boggs.pdf
    • http://kiteeearpdf.myhome.cx/2f219f211f212f217/Return-to-Red-River-by-Johnny-D-Boggs.pdf
    • http://kiteeearpdf.myhome.cx/2f219f211f219f217/West-Texas-Kill-by-Johnny-D-Boggs.pdf
    • http://kiteeearpdf.myhome.cx/1f212f218f219f210f212/Code-Name-Johnny-Walker-The-Extraordinary-Story-of-the-Iraqi-Who-Risked-Everything-to-Fight-with-the-U-S-Navy-SEALs-by-Johnny-Walker.pdf
    • http://kiteeearpdf.myhome.cx/1f210f212f213f217f211f217/Johnny-Appleseed-My-Story-by-David-L-Harrison.pdf
    • http://kiteeearpdf.myhome.cx/3f210f216f216f217f211/Mr-Red-Sox-The-Johnny-Pesky-Story-by-Bill-Nowlin.pdf
    • http://kiteeearpdf.myhome.cx/1f216f211f214f217f214/Johnny-and-the-Dead-Johnny-Maxwell-2-by-Terry-Pratchett.pdf
    • http://kiteeearpdf.myhome.cx/3f217f218f214f214f216/Johnny-and-the-Bomb-Johnny-Maxwell-3-by-Terry-Pratchett.pdf
    • http://kiteeearpdf.myhome.cx/2f218f213f211f218f218/Johnny-12-Steps-Johnny-Book-by-Nick-Tory.pdf
    • http://kiteeearpdf.myhome.cx/4f217f218f211f210f211/Johnny-s-House-A-Delightful-New-Version-of-a-Favorite-Old-Children-s-Story-Told-in-English-Japanese-and-German-by-Susanne-Hayase.pdf
    • http://kiteeearpdf.myhome.cx/3f210f216f211f217f212/Dust-Storm-a-Christian-Western-Short-Story-by-Cliff-Ball.pdf
    • http://kiteeearpdf.myhome.cx/3f210f215f214f213f213/Sheilas-Wogs-and-Poofters-An-Incomplete-Biography-of-Johnny-Warren-and-Soccer-in-Australia-by-Johnny-Warren.pdf
    • http://kiteeearpdf.myhome.cx/1f210f216f217f217f211f218/The-Phantom-of-the-Rocking-R-Fictional-Story-of-Ranch-Life-in-Western-North-Dakota-by-Richard-A-Welk.pdf
    • http://kiteeearpdf.myhome.cx/8f210f214f217f211f219/Memoirs-of-Childhood-and-Youth-in-America-1945-1962-The-Story-of-One-Western-Convert-s-Quest-for-Truth-by-Maryam-Jameelah.pdf
    • http://kiteeearpdf.myhome.cx/1f210f210f218f218f219f219/Johnny-Graphic-and-the-Attack-of-the-Zombies-Johnny-Graphic-Adventures-2-by-D-R-Martin.pdf
    • http://kiteeearpdf.myhome.cx/1f210f212f213f217f211f217/Johnny-Appleseed-My-Story-by-David-L-Harr

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