21f5a7f1afed0463cbff4606e7e0b3886d606fe1c9006c78d3e631eace98c22a

Analysis

max time kernel
41s
max time network
44s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
23-09-2022 03:01

Target

test1.exe
Size

115KB
MD5

664bbe2d9202f9818266a3d2a580c56e
SHA1

35aa8d2f9ba4f06822b673d9d1b6513e2ba4a9bf
SHA256

21f5a7f1afed0463cbff4606e7e0b3886d606fe1c9006c78d3e631eace98c22a
SHA512

adeb1bee01330e0913abf25a22b095651076fee7906816503b0e26ac38d775593aa1d496ca9eed7736962748febfde50b73e254c63bc0c4df0f9f7339cf1d37b
SSDEEP

3072:Fpvb7RV/8hhb3dLUK94IgqHniOSyaZoc7QNPnP9TBfWSX9:n9VkhhrdYK94IgqHniOSyaZoc7QNPnPV

Score

3^/10

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.PowerShellScript.1\Shell\Open\Command	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Microsoft.PowerShellScript.1\Shell\Open\Command\ = "C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe %1"	reg.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
684	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	684	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1044 wrote to memory of 684	1044	test1.exe	27
PID 1044 wrote to memory of 684	1044	test1.exe	27
PID 1044 wrote to memory of 684	1044	test1.exe	27
PID 684 wrote to memory of 1128	684	powershell.exe	29
PID 684 wrote to memory of 1128	684	powershell.exe	29
PID 684 wrote to memory of 1128	684	powershell.exe	29

C:\Users\Admin\AppData\Local\Temp\test1.exe
"C:\Users\Admin\AppData\Local\Temp\test1.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1044
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" –NoProfile -ExecutionPolicy Bypass -File C:\Users\Admin\AppData\Local\Temp\FAC4.tmp\FAC5.tmp\FAC6.ps1
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:684
- - C:\Windows\system32\reg.exe
    "C:\Windows\system32\reg.exe" add HKEY_CLASSES_ROOT\Microsoft.PowerShellScript.1\Shell\Open\Command /t REG_SZ /d "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe %1" /f
    3⤵
    - Modifies registry class
    PID:1128

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

C:\Users\Admin\AppData\Local\Temp\FAC4.tmp\FAC5.tmp\FAC6.ps1

Filesize
318B

MD5
7969fcdd4e5fc2955092d943786cfd29

SHA1
d4dc4aeca61a30695ced77baff8725b7cd864ccf

SHA256
915bafb42e87e067af8ec98edf0063b7645456fcebda5b6db52924b322b0a29c

SHA512
54456bb419429a792477cdd0acbc1ad670af619545f7e7101540ab9ed8b66dc57a54b97a60ca44f7bdb67ffab8594069195669943a425e55cdf221ce7d756def

Download Submit
memory/684-55-0x0000000000000000-mapping.dmp

Download
memory/684-57-0x000007FEF37D0000-0x000007FEF41F3000-memory.dmp

Filesize
10.1MB

Download
memory/684-58-0x000007FEF2C70000-0x000007FEF37CD000-memory.dmp

Filesize
11.4MB

Download
memory/684-59-0x00000000028A4000-0x00000000028A7000-memory.dmp

Filesize
12KB

Download
memory/684-62-0x00000000028A4000-0x00000000028A7000-memory.dmp

Filesize
12KB

Download
memory/684-63-0x00000000028AB000-0x00000000028CA000-memory.dmp

Filesize
124KB

Download
memory/1044-54-0x000007FEFB821000-0x000007FEFB823000-memory.dmp

Filesize
8KB

Download
memory/1128-61-0x0000000000000000-mapping.dmp

Download