Analysis

  • max time kernel
    150s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2022 08:44

General

  • Target

    0de21e4e566f35d8ce3b060c9fc09e0fde04e3ef016c0f8d2e4a68f584f2dcb2.exe

  • Size

    43KB

  • MD5

    b3b7928df11b3aaec19591b4e3b7b46a

  • SHA1

    0476371c4c6a11ba1cb345df83645b88c49001af

  • SHA256

    0de21e4e566f35d8ce3b060c9fc09e0fde04e3ef016c0f8d2e4a68f584f2dcb2

  • SHA512

    0a329afee4c977e60db155fb3cba84441621c25524f88ae6e3b83957c2458521845269f98c059ecd2eb0e4f580b74ceb43ef05c4d1f89feaf2100962f760b869

  • SSDEEP

    768:Ki/Pl86Jgr/SuuEf+rG9WTnu2GB581M6HDjH+Qqvtq1ssIl1qd46QBMNMp2mF6H2:5WWbrBJPE22qd4lBMxHCCrk

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0de21e4e566f35d8ce3b060c9fc09e0fde04e3ef016c0f8d2e4a68f584f2dcb2.exe
    "C:\Users\Admin\AppData\Local\Temp\0de21e4e566f35d8ce3b060c9fc09e0fde04e3ef016c0f8d2e4a68f584f2dcb2.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4004
    • C:\Users\Admin\AppData\Roaming\java.exe
      "C:\Users\Admin\AppData\Roaming\java.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4740
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\java.exe" "java.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:4760

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\java.exe
    Filesize

    43KB

    MD5

    b3b7928df11b3aaec19591b4e3b7b46a

    SHA1

    0476371c4c6a11ba1cb345df83645b88c49001af

    SHA256

    0de21e4e566f35d8ce3b060c9fc09e0fde04e3ef016c0f8d2e4a68f584f2dcb2

    SHA512

    0a329afee4c977e60db155fb3cba84441621c25524f88ae6e3b83957c2458521845269f98c059ecd2eb0e4f580b74ceb43ef05c4d1f89feaf2100962f760b869

  • C:\Users\Admin\AppData\Roaming\java.exe
    Filesize

    43KB

    MD5

    b3b7928df11b3aaec19591b4e3b7b46a

    SHA1

    0476371c4c6a11ba1cb345df83645b88c49001af

    SHA256

    0de21e4e566f35d8ce3b060c9fc09e0fde04e3ef016c0f8d2e4a68f584f2dcb2

    SHA512

    0a329afee4c977e60db155fb3cba84441621c25524f88ae6e3b83957c2458521845269f98c059ecd2eb0e4f580b74ceb43ef05c4d1f89feaf2100962f760b869

  • memory/4004-132-0x0000000074D20000-0x00000000752D1000-memory.dmp
    Filesize

    5.7MB

  • memory/4004-136-0x0000000074D20000-0x00000000752D1000-memory.dmp
    Filesize

    5.7MB

  • memory/4740-133-0x0000000000000000-mapping.dmp
  • memory/4740-138-0x0000000074D20000-0x00000000752D1000-memory.dmp
    Filesize

    5.7MB

  • memory/4740-139-0x0000000074D20000-0x00000000752D1000-memory.dmp
    Filesize

    5.7MB

  • memory/4760-137-0x0000000000000000-mapping.dmp