Resubmissions

24-02-2022 11:09

220224-m9bnlschc6 10

30-09-2021 07:37

210930-jfvmvaghd4 8

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    30-09-2021 07:37

General

  • Target

    2baf5673e002a973551c5a907c431e27198a99deb868e2693c94114c88f04c8c.exe

  • Size

    4.0MB

  • MD5

    63b303964203bd30a4e33aeb53ef1ee2

  • SHA1

    33f30b4495a9c5fd61a53d76b47781102ba1940b

  • SHA256

    2baf5673e002a973551c5a907c431e27198a99deb868e2693c94114c88f04c8c

  • SHA512

    1eb3e4e1e9cf12d69a35c1e01a301b6208fa3d73ad84a4cb8725cb4d419853c56b934ffaf0e8c8a5df1b9f3cb4955fb2c525bc97ef18306ce9d2ff3a0b342267

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2baf5673e002a973551c5a907c431e27198a99deb868e2693c94114c88f04c8c.exe
    "C:\Users\Admin\AppData\Local\Temp\2baf5673e002a973551c5a907c431e27198a99deb868e2693c94114c88f04c8c.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1652
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1640
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\2baf5673e002a973551c5a907c431e27198a99deb868e2693c94114c88f04c8c.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1308
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1724

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Remote System Discovery

1
T1018

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    9add0cb0aeb3349fbd3c6b127026dde8

    SHA1

    0b2b7629661eeadf324544e81b2b0ff59877de91

    SHA256

    345e370cc9095c4087fba2346e4da93bd5daa32c0ee25a625183f2d2bf937a74

    SHA512

    d6053960c26602ba82abc1eaf86e0b348dc9f2327f4616eb3c65dd3ab8e92f1295b4686c494cd3b6f74a8812834ebbe50629f60efe5149ca817f40e5f8cae9f4

  • \Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    9add0cb0aeb3349fbd3c6b127026dde8

    SHA1

    0b2b7629661eeadf324544e81b2b0ff59877de91

    SHA256

    345e370cc9095c4087fba2346e4da93bd5daa32c0ee25a625183f2d2bf937a74

    SHA512

    d6053960c26602ba82abc1eaf86e0b348dc9f2327f4616eb3c65dd3ab8e92f1295b4686c494cd3b6f74a8812834ebbe50629f60efe5149ca817f40e5f8cae9f4

  • \Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    9add0cb0aeb3349fbd3c6b127026dde8

    SHA1

    0b2b7629661eeadf324544e81b2b0ff59877de91

    SHA256

    345e370cc9095c4087fba2346e4da93bd5daa32c0ee25a625183f2d2bf937a74

    SHA512

    d6053960c26602ba82abc1eaf86e0b348dc9f2327f4616eb3c65dd3ab8e92f1295b4686c494cd3b6f74a8812834ebbe50629f60efe5149ca817f40e5f8cae9f4

  • memory/1308-66-0x0000000000000000-mapping.dmp
  • memory/1640-63-0x0000000000000000-mapping.dmp
  • memory/1652-60-0x0000000076641000-0x0000000076643000-memory.dmp
    Filesize

    8KB

  • memory/1724-67-0x0000000000000000-mapping.dmp