Analysis

  • max time kernel
    11s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    14/10/2024, 10:08

General

  • Target

    file.exe

  • Size

    791KB

  • MD5

    5f9cb397c845f9e4b723575c20705c10

  • SHA1

    8777fd75fe0058a5978780e6a4673b4759450eae

  • SHA256

    110153fca09fa9761ba79b12aee86d8a0b13e28784d4186b2a8f65557381000c

  • SHA512

    d6766f64e900499398392e65720ac51fb81ee1f6697cfe4f6e25231aa88b21dc16f76b466e84e3adea368d08ed21cdb84fa2014e47212c7a328e9d249fb9551f

  • SSDEEP

    24576:ENQ//5PPhGNV4AiaaOu6+tHv0PTVbUkITUcU:ENm/5XhG34AiROuhtH8PveUc

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3568
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command "Start-Sleep -Seconds 5; Remove-Item "C:\Users\Admin\AppData\Local\Temp\file.exe""
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3472

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4nxktg0l.err.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\[CryZIP]ZC_LOG.txt

    Filesize

    4KB

    MD5

    6ad8ca0a895c031c6ec8c87bbe415d17

    SHA1

    2b5f3fe5e460573a61a2fa09af46579aa2387d8a

    SHA256

    c611f992d3b667b2dabd535d0f4c72765c45fde63f63f6eefe45baeead737ed8

    SHA512

    d5858a750cceeaef2b682d6ba874d51c8e484f71d505a1110af01dff4f6a75914bd4246c013aabde56a8ef27811bed8b6010b7e60b8f0424666ee1d12d66ad76

  • C:\Users\Admin\Documents\OneNote Notebooks\[CryZIP]INSTRUCTIONS.txt

    Filesize

    4KB

    MD5

    22962f2697be4e30a28f995b8c9e00f8

    SHA1

    c33bfa10c866562cce98312f5c806cafaea13d52

    SHA256

    06e0d978d1fe08bd74e9bad97000ae891156f297b942522656e41d2aaaf7c6d2

    SHA512

    59a23e72ed8fcea77dfa46a848e3826371d916e226e6594f827a6cdb86ab4ff7bf835a5255d043947b53e3a7ea15e35aae616dcd63bcea54643613005ab14199

  • memory/3472-500-0x00000000060C0000-0x0000000006417000-memory.dmp

    Filesize

    3.3MB

  • memory/3472-501-0x00000000065B0000-0x00000000065CE000-memory.dmp

    Filesize

    120KB

  • memory/3472-509-0x0000000075240000-0x00000000759F1000-memory.dmp

    Filesize

    7.7MB

  • memory/3472-506-0x0000000006B90000-0x0000000006BB2000-memory.dmp

    Filesize

    136KB

  • memory/3472-505-0x0000000007620000-0x00000000076B6000-memory.dmp

    Filesize

    600KB

  • memory/3472-504-0x0000000006AD0000-0x0000000006AEA000-memory.dmp

    Filesize

    104KB

  • memory/3472-503-0x0000000007C00000-0x000000000827A000-memory.dmp

    Filesize

    6.5MB

  • memory/3472-502-0x00000000065F0000-0x000000000663C000-memory.dmp

    Filesize

    304KB

  • memory/3472-483-0x0000000005130000-0x0000000005166000-memory.dmp

    Filesize

    216KB

  • memory/3472-486-0x0000000075240000-0x00000000759F1000-memory.dmp

    Filesize

    7.7MB

  • memory/3472-487-0x0000000075240000-0x00000000759F1000-memory.dmp

    Filesize

    7.7MB

  • memory/3472-485-0x00000000058F0000-0x0000000005F1A000-memory.dmp

    Filesize

    6.2MB

  • memory/3472-490-0x0000000005F90000-0x0000000005FF6000-memory.dmp

    Filesize

    408KB

  • memory/3472-489-0x0000000005F20000-0x0000000005F86000-memory.dmp

    Filesize

    408KB

  • memory/3472-488-0x0000000005800000-0x0000000005822000-memory.dmp

    Filesize

    136KB

  • memory/3472-491-0x0000000075240000-0x00000000759F1000-memory.dmp

    Filesize

    7.7MB

  • memory/3568-1-0x0000000000D40000-0x0000000000E0C000-memory.dmp

    Filesize

    816KB

  • memory/3568-484-0x0000000075240000-0x00000000759F1000-memory.dmp

    Filesize

    7.7MB

  • memory/3568-0-0x000000007524E000-0x000000007524F000-memory.dmp

    Filesize

    4KB

  • memory/3568-4-0x0000000005980000-0x0000000005A12000-memory.dmp

    Filesize

    584KB

  • memory/3568-2-0x00000000058E0000-0x000000000597C000-memory.dmp

    Filesize

    624KB

  • memory/3568-3-0x0000000005F30000-0x00000000064D6000-memory.dmp

    Filesize

    5.6MB

  • memory/3568-8-0x0000000007210000-0x0000000007288000-memory.dmp

    Filesize

    480KB

  • memory/3568-7-0x0000000075240000-0x00000000759F1000-memory.dmp

    Filesize

    7.7MB

  • memory/3568-6-0x0000000005B70000-0x0000000005BC6000-memory.dmp

    Filesize

    344KB

  • memory/3568-5-0x00000000058D0000-0x00000000058DA000-memory.dmp

    Filesize

    40KB