a32b3b6b910709300049be20c8fcb7eebff97e173ca5c7eb673e325b79e4f8b8

Analysis

max time kernel
113s
max time network
58s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
26-11-2022 21:38

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General

Target

file.exe
Size

7.3MB
MD5

b40caf5b378b32a8d0a0166a7c747183
SHA1

fe8fef770407ccfe1ce1e6fdfabc243f0c1c2137
SHA256

a32b3b6b910709300049be20c8fcb7eebff97e173ca5c7eb673e325b79e4f8b8
SHA512

c70be6e8da2a3fbc0d8b6ee5a80c3bbc86cc94c2002ee43db26655cf2342eb63fbb2f69eecc7af21d6a75a206e216951181903d1eb18c11c0b29c0e0375a16e0
SSDEEP

196608:91ORsWUPGvhRIglklFFjGc5yegREJdWAG07MVUun5cfdMOltzj:3ORNUuC0kLdyee8EAGzHnqSOltzj

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1852	Install.exe
1368	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
800	file.exe
1852	Install.exe
1852	Install.exe
1852	Install.exe
1852	Install.exe
1368	Install.exe
1368	Install.exe
1368	Install.exe

Drops file in System32 directory 2 IoCs

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

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\bfBwZRfayCkVGrwgTe.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
1092	schtasks.exe
672	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
1036	powershell.EXE
1036	powershell.EXE
1036	powershell.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1036	powershell.EXE

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 800 wrote to memory of 1852	800	file.exe	28
PID 800 wrote to memory of 1852	800	file.exe	28
PID 800 wrote to memory of 1852	800	file.exe	28
PID 800 wrote to memory of 1852	800	file.exe	28
PID 800 wrote to memory of 1852	800	file.exe	28
PID 800 wrote to memory of 1852	800	file.exe	28
PID 800 wrote to memory of 1852	800	file.exe	28
PID 1852 wrote to memory of 1368	1852	Install.exe	29
PID 1852 wrote to memory of 1368	1852	Install.exe	29
PID 1852 wrote to memory of 1368	1852	Install.exe	29
PID 1852 wrote to memory of 1368	1852	Install.exe	29
PID 1852 wrote to memory of 1368	1852	Install.exe	29
PID 1852 wrote to memory of 1368	1852	Install.exe	29
PID 1852 wrote to memory of 1368	1852	Install.exe	29
PID 1368 wrote to memory of 468	1368	Install.exe	31
PID 1368 wrote to memory of 468	1368	Install.exe	31
PID 1368 wrote to memory of 468	1368	Install.exe	31
PID 1368 wrote to memory of 468	1368	Install.exe	31
PID 1368 wrote to memory of 468	1368	Install.exe	31
PID 1368 wrote to memory of 468	1368	Install.exe	31
PID 1368 wrote to memory of 468	1368	Install.exe	31
PID 1368 wrote to memory of 1860	1368	Install.exe	33
PID 1368 wrote to memory of 1860	1368	Install.exe	33
PID 1368 wrote to memory of 1860	1368	Install.exe	33
PID 1368 wrote to memory of 1860	1368	Install.exe	33
PID 1368 wrote to memory of 1860	1368	Install.exe	33
PID 1368 wrote to memory of 1860	1368	Install.exe	33
PID 1368 wrote to memory of 1860	1368	Install.exe	33
PID 468 wrote to memory of 1144	468	forfiles.exe	35
PID 468 wrote to memory of 1144	468	forfiles.exe	35
PID 468 wrote to memory of 1144	468	forfiles.exe	35
PID 468 wrote to memory of 1144	468	forfiles.exe	35
PID 468 wrote to memory of 1144	468	forfiles.exe	35
PID 468 wrote to memory of 1144	468	forfiles.exe	35
PID 468 wrote to memory of 1144	468	forfiles.exe	35
PID 1860 wrote to memory of 788	1860	forfiles.exe	36
PID 1860 wrote to memory of 788	1860	forfiles.exe	36
PID 1860 wrote to memory of 788	1860	forfiles.exe	36
PID 1860 wrote to memory of 788	1860	forfiles.exe	36
PID 1860 wrote to memory of 788	1860	forfiles.exe	36
PID 1860 wrote to memory of 788	1860	forfiles.exe	36
PID 1860 wrote to memory of 788	1860	forfiles.exe	36
PID 1144 wrote to memory of 896	1144	cmd.exe	37
PID 1144 wrote to memory of 896	1144	cmd.exe	37
PID 1144 wrote to memory of 896	1144	cmd.exe	37
PID 1144 wrote to memory of 896	1144	cmd.exe	37
PID 1144 wrote to memory of 896	1144	cmd.exe	37
PID 1144 wrote to memory of 896	1144	cmd.exe	37
PID 1144 wrote to memory of 896	1144	cmd.exe	37
PID 788 wrote to memory of 324	788	cmd.exe	38
PID 788 wrote to memory of 324	788	cmd.exe	38
PID 788 wrote to memory of 324	788	cmd.exe	38
PID 788 wrote to memory of 324	788	cmd.exe	38
PID 788 wrote to memory of 324	788	cmd.exe	38
PID 788 wrote to memory of 324	788	cmd.exe	38
PID 788 wrote to memory of 324	788	cmd.exe	38
PID 1144 wrote to memory of 1772	1144	cmd.exe	39
PID 1144 wrote to memory of 1772	1144	cmd.exe	39
PID 1144 wrote to memory of 1772	1144	cmd.exe	39
PID 1144 wrote to memory of 1772	1144	cmd.exe	39
PID 1144 wrote to memory of 1772	1144	cmd.exe	39
PID 1144 wrote to memory of 1772	1144	cmd.exe	39
PID 1144 wrote to memory of 1772	1144	cmd.exe	39
PID 788 wrote to memory of 1264	788	cmd.exe	40

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:800
- C:\Users\Admin\AppData\Local\Temp\7zSF47D.tmp\Install.exe
  .\Install.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1852
- - C:\Users\Admin\AppData\Local\Temp\7zSFCE6.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:1368
  - - 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:468
    - - 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:1144
      - \??\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:896
      - \??\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:1772
  - - 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:1860
    - - 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:788
      - \??\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:324
      - \??\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:1264
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /CREATE /TN "gtTCBJGVX" /SC once /ST 00:53:02 /F /RU "Admin" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA=="
      4⤵
      Creates scheduled task(s)
      PID:1092
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /run /I /tn "gtTCBJGVX"
      4⤵
      PID:1388
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /DELETE /F /TN "gtTCBJGVX"
      4⤵
      PID:520
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /CREATE /TN "bfBwZRfayCkVGrwgTe" /SC once /ST 22:41:00 /RU "SYSTEM" /TR "\"C:\Users\Admin\AppData\Local\Temp\uwsdDVajFzRyiYLif\PIUeLwnNLXyViPD\pjozMzb.exe\" 1s /site_id 525403 /S" /V1 /F
      4⤵
      Drops file in Windows directory
      Creates scheduled task(s)
      PID:672

C:\Windows\system32\taskeng.exe
taskeng.exe {B2409FC5-6F47-4CBD-9861-32D5E9471608} S-1-5-21-2292972927-2705560509-2768824231-1000:GRXNNIIE\Admin:Interactive:[1]
1⤵
PID:1560
- 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:1036
- - C:\Windows\system32\gpupdate.exe
    "C:\Windows\system32\gpupdate.exe" /force
    3⤵
    PID:1612

C:\Windows\system32\gpscript.exe
gpscript.exe /RefreshSystemParam
1⤵
PID:1412

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\7zSF47D.tmp\Install.exe

Filesize
6.3MB

MD5
6c0b7bfae0100764343204975fa78092

SHA1
438694ce367446167954dd3d901b05f2c152bdd3

SHA256
869a1b200cd0b1ff4cc3a020327b6f1b5fc6163b96a04b07d3f58fcbe4dd7ea9

SHA512
f1eafa29b0a8f864d9a337577196c31f111904f5cd01bd3e24ef206a6675d72d39444ea91e19cb2d99f446434a4792285cd20c00dbfa19997f65bd07fd7800b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSF47D.tmp\Install.exe

Filesize
6.3MB

MD5
6c0b7bfae0100764343204975fa78092

SHA1
438694ce367446167954dd3d901b05f2c152bdd3

SHA256
869a1b200cd0b1ff4cc3a020327b6f1b5fc6163b96a04b07d3f58fcbe4dd7ea9

SHA512
f1eafa29b0a8f864d9a337577196c31f111904f5cd01bd3e24ef206a6675d72d39444ea91e19cb2d99f446434a4792285cd20c00dbfa19997f65bd07fd7800b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSFCE6.tmp\Install.exe

Filesize
6.9MB

MD5
f13c959ab9b4f4054a130e0f2fbaa0fc

SHA1
3c4493352ebe277c8ea86bf1445c869d4314b9f0

SHA256
941884d8f2cb6dfcccb8c10166b2343bc573b8959921b55d5f1e7c83ff63da49

SHA512
4771b594e97ec3550858bbe670fa52998bed8aeae9c7d11568a55b4861658150311396912a33fb001be4adf99594658bb90c1fb63946ae3330e09372187f1810

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSFCE6.tmp\Install.exe

Filesize
6.9MB

MD5
f13c959ab9b4f4054a130e0f2fbaa0fc

SHA1
3c4493352ebe277c8ea86bf1445c869d4314b9f0

SHA256
941884d8f2cb6dfcccb8c10166b2343bc573b8959921b55d5f1e7c83ff63da49

SHA512
4771b594e97ec3550858bbe670fa52998bed8aeae9c7d11568a55b4861658150311396912a33fb001be4adf99594658bb90c1fb63946ae3330e09372187f1810

Download Submit
\Users\Admin\AppData\Local\Temp\7zSF47D.tmp\Install.exe

Filesize
6.3MB

MD5
6c0b7bfae0100764343204975fa78092

SHA1
438694ce367446167954dd3d901b05f2c152bdd3

SHA256
869a1b200cd0b1ff4cc3a020327b6f1b5fc6163b96a04b07d3f58fcbe4dd7ea9

SHA512
f1eafa29b0a8f864d9a337577196c31f111904f5cd01bd3e24ef206a6675d72d39444ea91e19cb2d99f446434a4792285cd20c00dbfa19997f65bd07fd7800b6

Download Submit
\Users\Admin\AppData\Local\Temp\7zSF47D.tmp\Install.exe

Filesize
6.3MB

MD5
6c0b7bfae0100764343204975fa78092

SHA1
438694ce367446167954dd3d901b05f2c152bdd3

SHA256
869a1b200cd0b1ff4cc3a020327b6f1b5fc6163b96a04b07d3f58fcbe4dd7ea9

SHA512
f1eafa29b0a8f864d9a337577196c31f111904f5cd01bd3e24ef206a6675d72d39444ea91e19cb2d99f446434a4792285cd20c00dbfa19997f65bd07fd7800b6

Download Submit
\Users\Admin\AppData\Local\Temp\7zSF47D.tmp\Install.exe

Filesize
6.3MB

MD5
6c0b7bfae0100764343204975fa78092

SHA1
438694ce367446167954dd3d901b05f2c152bdd3

SHA256
869a1b200cd0b1ff4cc3a020327b6f1b5fc6163b96a04b07d3f58fcbe4dd7ea9

SHA512
f1eafa29b0a8f864d9a337577196c31f111904f5cd01bd3e24ef206a6675d72d39444ea91e19cb2d99f446434a4792285cd20c00dbfa19997f65bd07fd7800b6

Download Submit
\Users\Admin\AppData\Local\Temp\7zSF47D.tmp\Install.exe

Filesize
6.3MB

MD5
6c0b7bfae0100764343204975fa78092

SHA1
438694ce367446167954dd3d901b05f2c152bdd3

SHA256
869a1b200cd0b1ff4cc3a020327b6f1b5fc6163b96a04b07d3f58fcbe4dd7ea9

SHA512
f1eafa29b0a8f864d9a337577196c31f111904f5cd01bd3e24ef206a6675d72d39444ea91e19cb2d99f446434a4792285cd20c00dbfa19997f65bd07fd7800b6

Download Submit
\Users\Admin\AppData\Local\Temp\7zSFCE6.tmp\Install.exe

Filesize
6.9MB

MD5
f13c959ab9b4f4054a130e0f2fbaa0fc

SHA1
3c4493352ebe277c8ea86bf1445c869d4314b9f0

SHA256
941884d8f2cb6dfcccb8c10166b2343bc573b8959921b55d5f1e7c83ff63da49

SHA512
4771b594e97ec3550858bbe670fa52998bed8aeae9c7d11568a55b4861658150311396912a33fb001be4adf99594658bb90c1fb63946ae3330e09372187f1810

Download Submit
\Users\Admin\AppData\Local\Temp\7zSFCE6.tmp\Install.exe

Filesize
6.9MB

MD5
f13c959ab9b4f4054a130e0f2fbaa0fc

SHA1
3c4493352ebe277c8ea86bf1445c869d4314b9f0

SHA256
941884d8f2cb6dfcccb8c10166b2343bc573b8959921b55d5f1e7c83ff63da49

SHA512
4771b594e97ec3550858bbe670fa52998bed8aeae9c7d11568a55b4861658150311396912a33fb001be4adf99594658bb90c1fb63946ae3330e09372187f1810

Download Submit
\Users\Admin\AppData\Local\Temp\7zSFCE6.tmp\Install.exe

Filesize
6.9MB

MD5
f13c959ab9b4f4054a130e0f2fbaa0fc

SHA1
3c4493352ebe277c8ea86bf1445c869d4314b9f0

SHA256
941884d8f2cb6dfcccb8c10166b2343bc573b8959921b55d5f1e7c83ff63da49

SHA512
4771b594e97ec3550858bbe670fa52998bed8aeae9c7d11568a55b4861658150311396912a33fb001be4adf99594658bb90c1fb63946ae3330e09372187f1810

Download Submit
\Users\Admin\AppData\Local\Temp\7zSFCE6.tmp\Install.exe

Filesize
6.9MB

MD5
f13c959ab9b4f4054a130e0f2fbaa0fc

SHA1
3c4493352ebe277c8ea86bf1445c869d4314b9f0

SHA256
941884d8f2cb6dfcccb8c10166b2343bc573b8959921b55d5f1e7c83ff63da49

SHA512
4771b594e97ec3550858bbe670fa52998bed8aeae9c7d11568a55b4861658150311396912a33fb001be4adf99594658bb90c1fb63946ae3330e09372187f1810

Download Submit
memory/800-54-0x0000000075521000-0x0000000075523000-memory.dmp

Filesize
8KB

Download
memory/1036-100-0x0000000002454000-0x0000000002457000-memory.dmp

Filesize
12KB

Download
memory/1036-101-0x000000000245B000-0x000000000247A000-memory.dmp

Filesize
124KB

Download
memory/1036-95-0x000007FEFBA81000-0x000007FEFBA83000-memory.dmp

Filesize
8KB

Download
memory/1036-97-0x000007FEF3540000-0x000007FEF409D000-memory.dmp

Filesize
11.4MB

Download
memory/1036-98-0x0000000002454000-0x0000000002457000-memory.dmp

Filesize
12KB

Download
memory/1036-96-0x000007FEF40A0000-0x000007FEF4AC3000-memory.dmp

Filesize
10.1MB

Download
memory/1368-71-0x0000000010000000-0x000000001097F000-memory.dmp

Filesize
9.5MB

Download