Malicious PDF — malware analysis report

Static analysis result for SHA-256 62ba630dfbd412ba…

MALICIOUS

PDF

24.4 KB Created: 2020-03-20 13:10:49 +00:00 Authoring application: mPDF 5.7
MD5: e77745211e763429a856364eee0671ce SHA-1: 1ee0043b7f2a6870ff3e7d5f38fb749f4321ef6e SHA-256: 62ba630dfbd412ba529559b54d68b8f246f23b050a6ffb040584fd95fffd9f40
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, which are likely intended to direct users to malicious content. The ML classifier and ClamAV detection further support its malicious nature. The document body, though partially corrupted, contains URLs that are also listed as IOCs, reinforcing the link-farming attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9716

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.Dropper.Agent-7670035-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7670035-0
  • 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://rtuninnsi.myhome.cx/76a66a86a16a36a9/Gunfight-At-Benson-s-Creek-The-Creek-Battle-A-Western-Adventure-The-Blood-on-the-Plains-Western-Series-Book-2-by-John-D-Fie-Jr-.pdf
    • http://rtuninnsi.myhome.cx/76a66a86a06a86a0/High-Plains-Ambush-A-Western-The-Blood-on-the-Plains-Western-Series-Book-1-by-John-D-Fie-Jr-.pdf
    • http://rtuninnsi.myhome.cx/36a66a26a76a16a7/Angel-Creek-and-A-Lady-of-the-West-Western-Ladies-1-2-by-Linda-Howard.pdf
    • http://rtuninnsi.myhome.cx/16a06a06a86a46a26a2/Blackfeet-Raiders-On-The-North-Western-Plains-by-John-C-Ewers.pdf
    • http://rtuninnsi.myhome.cx/36a56a76a26a46a3/Western-The-Series-Western-Romance-1-by-Juliet-Sassy.pdf
    • http://rtuninnsi.myhome.cx/46a56a96a26a36a0/Untitled-Cactus-Creek-Book-6-Cactus-Creek-6-by-Violet-Duke.pdf
    • http://rtuninnsi.myhome.cx/16a06a86a46a66a26a2/Journey-to-Redemption-Matson-Creek-Series-Book-2-by-Beverly-Kovatch.pdf
    • http://rtuninnsi.myhome.cx/66a06a56a86a36a5/Yellowstone-A-John-Cutler-Western-Book-6-by-H-V-Elkin.pdf
    • http://rtuninnsi.myhome.cx/66a06a56a76a96a9/Tiger-s-Chance-A-John-Cutler-Western-Book-4-by-H-V-Elkin.pdf
    • http://rtuninnsi.myhome.cx/16a16a46a16a86a56a9/Streams-of-Mercy-A-Christian-Romance-Mystery-Novel-Jenna-s-Creek-Series-Book-1-by-Teresa-Slack.pdf
    • http://rtuninnsi.myhome.cx/86a76a66a46a66a6/Gardner-s-Art-through-the-Ages-The-Western-Perspective-with-ArtStudy-CD-ROM-2-1-Western-by-Fred-S-Kleiner.pdf
    • http://rtuninnsi.myhome.cx/66a76a76a36a16a9/Return-to-Elm-Creek-More-Quilt-Projects-Inspired-by-the-Elm-Creek-Quilts-Novels-by-Jennifer-Chiaverini.pdf
    • http://rtuninnsi.myhome.cx/36a76a36a96a96a4/Christmas-on-Main-Street-Snowberry-Creek-1-5-Shelter-Bay-6-5-Cricket-Creek-5-5-Bayberry-Island-0-5-by-JoAnn-Ross.pdf
    • http://rtuninnsi.myhome.cx/46a26a76a06a26a8/Battle-Creek-by-Scott-Lasser.pdf
    • http://rtuninnsi.myhome.cx/26a86a56a86a56a8/Marathon-The-Battle-that-Changed-Western-Civilization-by-Richard-A-Billows.pdf
    • http://rtuninnsi.myhome.cx/16a06a16a66a66a86a6/Frank-and-the-Princess-A-Frank-Brannon-Adventure-From-The-Author-of-quot-Frank-Brannon---Reluctant-Marshal-quot-A-Frank-Brannon-Western-Adventure-Book-3-by-C-Wayne-Winkle.pdf
    • http://rtuninnsi.myhome.cx/46a66a66a76a16a4/Twice-a-Texas-Bride-Bachelors-of-Battle-Creek-2-by-Linda-Broday.pdf
    • http://rtuninnsi.myhome.cx/26a16a36a86a1/The-Kelloggs-The-Battling-Brothers-of-Battle-Creek-by-Howard-Markel.pdf
    • http://rtuninnsi.myhome.cx/26a56a06a46a46a8/Forever-His-Texas-Bride-Bachelors-of-Battle-Creek-3-by-Linda-Broday.pdf
    • http://rtuninnsi.myhome.cx/56a16a86a66a16a4/Wilson-s-Creek-The-Second-Battle-of-the-Civil-War-and-the-Men-Who-Fought-It-by-William-Garrett-Piston.pdf