Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e84daee82a3cb59…

MALICIOUS

PDF

21.4 KB Created: 2019-05-02 01:58:00 +01:00 Authoring application: mPDF 5.7
MD5: 5afd39a58f4ae014484b6c0387435e18 SHA-1: 87ddde679ed143dd78b955c53441f1c47e513230 SHA-256: 4e84daee82a3cb59ccbe1506f9e6c83074582094d49aa743154e992255703518
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. These URLs are likely intended to manipulate search engine rankings or redirect users to malicious sites. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/1f211f210f214f212f215f215/Surviving-My-Life-The-Jack-Strunk-Story-by-Jack-Strunk.pdf
    • http://kiteeearpdf.myhome.cx/1f211f210f214f215f217f219/Americki-A-Short-Story-by-Harold-Strunk-Pete-Givens-Book-2-by-Harold-Strunk.pdf
    • http://kiteeearpdf.myhome.cx/2f211f215f212f211f212/Jack-and-Zena-A-True-Story-of-Love-and-Danger-by-Jack-Briggs.pdf
    • http://kiteeearpdf.myhome.cx/2f218f215f218f218f214/Jack-s-New-Power-Stories-from-a-Caribbean-Year-Jack-Henry-2-by-Jack-Gantos.pdf
    • http://kiteeearpdf.myhome.cx/1f214f211f218f212f216/Jack-s-Life-The-Life-Story-Of-C-S-Lewis-by-Douglas-Gresham.pdf
    • http://kiteeearpdf.myhome.cx/1f211f210f214f213f211f218/The-Yard-by-Jesse-Strunk.pdf
    • http://kiteeearpdf.myhome.cx/1f211f216f215f219f215f217/The-Elements-of-Style-by-William-Strunk-Jr-.pdf
    • http://kiteeearpdf.myhome.cx/3f217f219f212f210f213/The-Elements-of-Style-by-William-Strunk-Jr-.pdf
    • http://kiteeearpdf.myhome.cx/8f216f219f210f218f215/The-Elements-of-Style-by-William-Strunk-Jr-.pdf
    • http://kiteeearpdf.myhome.cx/1f211f210f214f212f210f213/Strunk-s-Source-Readings-in-Music-History-by-Leo-Treitler.pdf
    • http://kiteeearpdf.myhome.cx/1f211f210f214f213f210f214/The-Elements-of-Style-Fourth-Edition-by-William-Strunk.pdf
    • http://kiteeearpdf.myhome.cx/1f211f215f218f219f214/One-Seriously-Messed-Up-Week-in-the-Otherwise-Mundane-and-Uneventful-Life-of-Jack-Samsonite-Jack-Samsonite-1-by-Tom-Clempson.pdf
    • http://kiteeearpdf.myhome.cx/1f211f210f214f215f218f216/Source-Readings-In-Music-History-5-The-Romantic-Era-by-W-Oliver-Strunk.pdf
    • http://kiteeearpdf.myhome.cx/1f211f210f214f213f219f219/Where-Deregulation-Went-Wrong-A-Look-At-The-Causes-Behind-Savings-And-Loan-Failures-In-The-1980-s-by-Norman-Strunk.pdf
    • http://kiteeearpdf.myhome.cx/1f211f210f214f212f215f218/Strunk-s-Source-Readings-in-Music-History-The-Baroque-Era-by-Lawrence-Dreyfus.pdf
    • http://kiteeearpdf.myhome.cx/8f215f211f215f210f213/The-Elements-of-Style-The-Original-Manual-of-Writing-and-Composition-by-William-Strunk-Jr-.pdf
    • http://kiteeearpdf.myhome.cx/1f210f214f211f216f210f212/The-Elements-of-Style-Professor-of-English-in-Cornell-University-Annotated-by-William-Strunk-Jr-.pdf
    • http://kiteeearpdf.myhome.cx/1f211f210f214f215f218f211/Adios-Strunk-and-White-A-Handbook-for-the-New-Academic-Essay-Sixth-Edition-by-Gary-amp-Glynis-Hoffman.pdf
    • http://kiteeearpdf.myhome.cx/1f211f210f214f214f210f218/JK-Rowlings-magische-Welt-Versuch-einer-Interpretation-der-Harry-Potter-Romane-by-Sigrun-Strunk.pdf
    • http://kiteeearpdf.myhome.cx/1f211f210f214f213f211f213/Strunk-s-Source-Readings-in-Music-History-Greek-Views-of-Music-by-Thomas-J-Mathiesen.pdf
    • http://kiteeearpdf.myhome.cx/8f216f219f210f