Analysis

  • max time kernel
    149s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-08-2022 03:01

General

  • Target

    jetbra/?????????????????.html

  • Size

    367B

  • MD5

    d400de475a63d3460710008e4765d621

  • SHA1

    f738e1f0208d29cfbb26b2dcc9d29df71274fbd5

  • SHA256

    eea6292e6d86c4fe93b03a9d88caae9fbf277ead426187ba72ae92d25770c10a

  • SHA512

    e5ef1efa1cd82992be90d82722249aee83eea8e08d5555459cd3a53f98575298739f8723690311603993ab53d3ca041a4aea0b64a1b1a9c9ad8b038a44adb3e1

Score
5/10

Malware Config

Signatures

  • Drops file in System32 directory 2 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 54 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\jetbra\_________________.html
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1076
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1076 CREDAT:17410 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:2408
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p
    1⤵
    • Drops file in System32 directory
    • Checks processor information in registry
    • Enumerates system info in registry
    PID:1440

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\z2evvp3\imagestore.dat
    Filesize

    2KB

    MD5

    d61e9973bf620f98f85b482603a8a505

    SHA1

    d86a0116f9b8387f26d1d6da002b759d73dcc3ee

    SHA256

    12961a80feb07b1432cd91f0807d69e05523042af88837b6303faeab77176e95

    SHA512

    b43a0eb51b5384c2f572a0e15a027bc3e0ba8bd5e4cd79c52db633ec715877b258dbfb50915d00b1da67278477d35ad4bf4ecc86fe8eb658ad6aebacb9a75351