045f1ac0f642da0fce0104ec7dc53ffaf29df5a35611232db0f9379c1035743e

Analysis

max time kernel
131s
max time network
132s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29-10-2022 18:40

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General

Target

file.exe
Size

7.3MB
MD5

9d015ca4140e8a5045a8f5064e78f6db
SHA1

8a1d457ad5ae408526ccecc059f1ead34fe0812e
SHA256

045f1ac0f642da0fce0104ec7dc53ffaf29df5a35611232db0f9379c1035743e
SHA512

c4b8c6174e2249ade687371b9694c38d05da5168cecb38abdb234072555e8901be75dd69004a36c86322990bed13e536af543e08caa46aaad952aa7bbf9d0216
SSDEEP

196608:91OVtdoJ2HvNVAD/dygb7MQgC1wWGKrF/cupj:3OVfoJ4CLnc4tGKB/cupj

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1144	Install.exe
1900	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
1776	file.exe
1144	Install.exe
1144	Install.exe
1144	Install.exe
1144	Install.exe
1900	Install.exe
1900	Install.exe
1900	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\brasnSkGtCxjpntrIe.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
1744	schtasks.exe
1068	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
432	powershell.EXE
432	powershell.EXE
432	powershell.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	432	powershell.EXE

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1776 wrote to memory of 1144	1776	file.exe	27
PID 1776 wrote to memory of 1144	1776	file.exe	27
PID 1776 wrote to memory of 1144	1776	file.exe	27
PID 1776 wrote to memory of 1144	1776	file.exe	27
PID 1776 wrote to memory of 1144	1776	file.exe	27
PID 1776 wrote to memory of 1144	1776	file.exe	27
PID 1776 wrote to memory of 1144	1776	file.exe	27
PID 1144 wrote to memory of 1900	1144	Install.exe	28
PID 1144 wrote to memory of 1900	1144	Install.exe	28
PID 1144 wrote to memory of 1900	1144	Install.exe	28
PID 1144 wrote to memory of 1900	1144	Install.exe	28
PID 1144 wrote to memory of 1900	1144	Install.exe	28
PID 1144 wrote to memory of 1900	1144	Install.exe	28
PID 1144 wrote to memory of 1900	1144	Install.exe	28
PID 1900 wrote to memory of 1740	1900	Install.exe	30
PID 1900 wrote to memory of 1740	1900	Install.exe	30
PID 1900 wrote to memory of 1740	1900	Install.exe	30
PID 1900 wrote to memory of 1740	1900	Install.exe	30
PID 1900 wrote to memory of 1740	1900	Install.exe	30
PID 1900 wrote to memory of 1740	1900	Install.exe	30
PID 1900 wrote to memory of 1740	1900	Install.exe	30
PID 1900 wrote to memory of 816	1900	Install.exe	32
PID 1900 wrote to memory of 816	1900	Install.exe	32
PID 1900 wrote to memory of 816	1900	Install.exe	32
PID 1900 wrote to memory of 816	1900	Install.exe	32
PID 1900 wrote to memory of 816	1900	Install.exe	32
PID 1900 wrote to memory of 816	1900	Install.exe	32
PID 1900 wrote to memory of 816	1900	Install.exe	32
PID 1740 wrote to memory of 752	1740	forfiles.exe	34
PID 1740 wrote to memory of 752	1740	forfiles.exe	34
PID 1740 wrote to memory of 752	1740	forfiles.exe	34
PID 1740 wrote to memory of 752	1740	forfiles.exe	34
PID 1740 wrote to memory of 752	1740	forfiles.exe	34
PID 1740 wrote to memory of 752	1740	forfiles.exe	34
PID 1740 wrote to memory of 752	1740	forfiles.exe	34
PID 816 wrote to memory of 1548	816	forfiles.exe	35
PID 816 wrote to memory of 1548	816	forfiles.exe	35
PID 816 wrote to memory of 1548	816	forfiles.exe	35
PID 816 wrote to memory of 1548	816	forfiles.exe	35
PID 816 wrote to memory of 1548	816	forfiles.exe	35
PID 816 wrote to memory of 1548	816	forfiles.exe	35
PID 816 wrote to memory of 1548	816	forfiles.exe	35
PID 752 wrote to memory of 1668	752	cmd.exe	36
PID 752 wrote to memory of 1668	752	cmd.exe	36
PID 752 wrote to memory of 1668	752	cmd.exe	36
PID 752 wrote to memory of 1668	752	cmd.exe	36
PID 752 wrote to memory of 1668	752	cmd.exe	36
PID 752 wrote to memory of 1668	752	cmd.exe	36
PID 752 wrote to memory of 1668	752	cmd.exe	36
PID 1548 wrote to memory of 536	1548	cmd.exe	37
PID 1548 wrote to memory of 536	1548	cmd.exe	37
PID 1548 wrote to memory of 536	1548	cmd.exe	37
PID 1548 wrote to memory of 536	1548	cmd.exe	37
PID 1548 wrote to memory of 536	1548	cmd.exe	37
PID 1548 wrote to memory of 536	1548	cmd.exe	37
PID 1548 wrote to memory of 536	1548	cmd.exe	37
PID 752 wrote to memory of 1428	752	cmd.exe	38
PID 752 wrote to memory of 1428	752	cmd.exe	38
PID 752 wrote to memory of 1428	752	cmd.exe	38
PID 752 wrote to memory of 1428	752	cmd.exe	38
PID 752 wrote to memory of 1428	752	cmd.exe	38
PID 752 wrote to memory of 1428	752	cmd.exe	38
PID 752 wrote to memory of 1428	752	cmd.exe	38
PID 1548 wrote to memory of 1996	1548	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:1776
- C:\Users\Admin\AppData\Local\Temp\7zS9C21.tmp\Install.exe
  .\Install.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1144
- - C:\Users\Admin\AppData\Local\Temp\7zSA304.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:1900
  - - 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:1740
    - - 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:752
      - \??\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:1668
      - \??\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:1428
  - - 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:816
    - - 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:1548
      - \??\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:536
      - \??\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:1996
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /CREATE /TN "gNYpoXCqX" /SC once /ST 17:13:59 /F /RU "Admin" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA=="
      4⤵
      Creates scheduled task(s)
      PID:1744
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /run /I /tn "gNYpoXCqX"
      4⤵
      PID:1348
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /DELETE /F /TN "gNYpoXCqX"
      4⤵
      PID:1376
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /CREATE /TN "brasnSkGtCxjpntrIe" /SC once /ST 20:44:00 /RU "SYSTEM" /TR "\"C:\Users\Admin\AppData\Local\Temp\ZYuTgEApocGMnoUVB\TgenxYmgdCeMHVD\saERaJZ.exe\" bJ /site_id 525403 /S" /V1 /F
      4⤵
      Drops file in Windows directory
      Creates scheduled task(s)
      PID:1068

C:\Windows\system32\taskeng.exe
taskeng.exe {4279DC93-D8C7-44CE-87B4-9F0421993A60} S-1-5-21-2292972927-2705560509-2768824231-1000:GRXNNIIE\Admin:Interactive:[1]
1⤵
PID:1556
- 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:432
- - C:\Windows\system32\gpupdate.exe
    "C:\Windows\system32\gpupdate.exe" /force
    3⤵
    PID:908

C:\Windows\system32\gpscript.exe
gpscript.exe /RefreshSystemParam
1⤵
PID:808

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\7zS9C21.tmp\Install.exe

Filesize
6.2MB

MD5
32adef4696d0f229c6bdf7b4e2fb4173

SHA1
1906393aa817e9c12e9134ca1c262217ef086354

SHA256
3245449f679d6a511e92e8eeec4230d57713991a248a0a3065344636b06d30b6

SHA512
b27ad733e0008468c0f600c12f562ee6bdfd0a771c1570995a53feed8df8fa10e22b415d70b49e2fc01cfbaf0e8054022c9abdd4b0a59cccf12930fce360bf28

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS9C21.tmp\Install.exe

Filesize
6.2MB

MD5
32adef4696d0f229c6bdf7b4e2fb4173

SHA1
1906393aa817e9c12e9134ca1c262217ef086354

SHA256
3245449f679d6a511e92e8eeec4230d57713991a248a0a3065344636b06d30b6

SHA512
b27ad733e0008468c0f600c12f562ee6bdfd0a771c1570995a53feed8df8fa10e22b415d70b49e2fc01cfbaf0e8054022c9abdd4b0a59cccf12930fce360bf28

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA304.tmp\Install.exe

Filesize
6.7MB

MD5
656aaf3ff26281130d5e954069316457

SHA1
78d76d9dd0b480a371aac131e434e7c363ae7c1d

SHA256
adac5e9076347025ad8cec44ee3a40c1b7724d9771824125c94e62c1a8bf6cb4

SHA512
fd614934e5ee2d73d373ab4c0463f1c8e64936f7ab411e9feda4a938c612e427f0d09f9f1ec664e2a0580c85a991e11f224a3fed20fedecc44115a696e3cc6be

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zSA304.tmp\Install.exe

Filesize
6.7MB

MD5
656aaf3ff26281130d5e954069316457

SHA1
78d76d9dd0b480a371aac131e434e7c363ae7c1d

SHA256
adac5e9076347025ad8cec44ee3a40c1b7724d9771824125c94e62c1a8bf6cb4

SHA512
fd614934e5ee2d73d373ab4c0463f1c8e64936f7ab411e9feda4a938c612e427f0d09f9f1ec664e2a0580c85a991e11f224a3fed20fedecc44115a696e3cc6be

Download Submit
\Users\Admin\AppData\Local\Temp\7zS9C21.tmp\Install.exe

Filesize
6.2MB

MD5
32adef4696d0f229c6bdf7b4e2fb4173

SHA1
1906393aa817e9c12e9134ca1c262217ef086354

SHA256
3245449f679d6a511e92e8eeec4230d57713991a248a0a3065344636b06d30b6

SHA512
b27ad733e0008468c0f600c12f562ee6bdfd0a771c1570995a53feed8df8fa10e22b415d70b49e2fc01cfbaf0e8054022c9abdd4b0a59cccf12930fce360bf28

Download Submit
\Users\Admin\AppData\Local\Temp\7zS9C21.tmp\Install.exe

Filesize
6.2MB

MD5
32adef4696d0f229c6bdf7b4e2fb4173

SHA1
1906393aa817e9c12e9134ca1c262217ef086354

SHA256
3245449f679d6a511e92e8eeec4230d57713991a248a0a3065344636b06d30b6

SHA512
b27ad733e0008468c0f600c12f562ee6bdfd0a771c1570995a53feed8df8fa10e22b415d70b49e2fc01cfbaf0e8054022c9abdd4b0a59cccf12930fce360bf28

Download Submit
\Users\Admin\AppData\Local\Temp\7zS9C21.tmp\Install.exe

Filesize
6.2MB

MD5
32adef4696d0f229c6bdf7b4e2fb4173

SHA1
1906393aa817e9c12e9134ca1c262217ef086354

SHA256
3245449f679d6a511e92e8eeec4230d57713991a248a0a3065344636b06d30b6

SHA512
b27ad733e0008468c0f600c12f562ee6bdfd0a771c1570995a53feed8df8fa10e22b415d70b49e2fc01cfbaf0e8054022c9abdd4b0a59cccf12930fce360bf28

Download Submit
\Users\Admin\AppData\Local\Temp\7zS9C21.tmp\Install.exe

Filesize
6.2MB

MD5
32adef4696d0f229c6bdf7b4e2fb4173

SHA1
1906393aa817e9c12e9134ca1c262217ef086354

SHA256
3245449f679d6a511e92e8eeec4230d57713991a248a0a3065344636b06d30b6

SHA512
b27ad733e0008468c0f600c12f562ee6bdfd0a771c1570995a53feed8df8fa10e22b415d70b49e2fc01cfbaf0e8054022c9abdd4b0a59cccf12930fce360bf28

Download Submit
\Users\Admin\AppData\Local\Temp\7zSA304.tmp\Install.exe

Filesize
6.7MB

MD5
656aaf3ff26281130d5e954069316457

SHA1
78d76d9dd0b480a371aac131e434e7c363ae7c1d

SHA256
adac5e9076347025ad8cec44ee3a40c1b7724d9771824125c94e62c1a8bf6cb4

SHA512
fd614934e5ee2d73d373ab4c0463f1c8e64936f7ab411e9feda4a938c612e427f0d09f9f1ec664e2a0580c85a991e11f224a3fed20fedecc44115a696e3cc6be

Download Submit
\Users\Admin\AppData\Local\Temp\7zSA304.tmp\Install.exe

Filesize
6.7MB

MD5
656aaf3ff26281130d5e954069316457

SHA1
78d76d9dd0b480a371aac131e434e7c363ae7c1d

SHA256
adac5e9076347025ad8cec44ee3a40c1b7724d9771824125c94e62c1a8bf6cb4

SHA512
fd614934e5ee2d73d373ab4c0463f1c8e64936f7ab411e9feda4a938c612e427f0d09f9f1ec664e2a0580c85a991e11f224a3fed20fedecc44115a696e3cc6be

Download Submit
\Users\Admin\AppData\Local\Temp\7zSA304.tmp\Install.exe

Filesize
6.7MB

MD5
656aaf3ff26281130d5e954069316457

SHA1
78d76d9dd0b480a371aac131e434e7c363ae7c1d

SHA256
adac5e9076347025ad8cec44ee3a40c1b7724d9771824125c94e62c1a8bf6cb4

SHA512
fd614934e5ee2d73d373ab4c0463f1c8e64936f7ab411e9feda4a938c612e427f0d09f9f1ec664e2a0580c85a991e11f224a3fed20fedecc44115a696e3cc6be

Download Submit
\Users\Admin\AppData\Local\Temp\7zSA304.tmp\Install.exe

Filesize
6.7MB

MD5
656aaf3ff26281130d5e954069316457

SHA1
78d76d9dd0b480a371aac131e434e7c363ae7c1d

SHA256
adac5e9076347025ad8cec44ee3a40c1b7724d9771824125c94e62c1a8bf6cb4

SHA512
fd614934e5ee2d73d373ab4c0463f1c8e64936f7ab411e9feda4a938c612e427f0d09f9f1ec664e2a0580c85a991e11f224a3fed20fedecc44115a696e3cc6be

Download Submit
memory/432-95-0x000007FEFB761000-0x000007FEFB763000-memory.dmp

Filesize
8KB

Download
memory/432-100-0x0000000002604000-0x0000000002607000-memory.dmp

Filesize
12KB

Download
memory/432-101-0x000000000260B000-0x000000000262A000-memory.dmp

Filesize
124KB

Download
memory/432-97-0x000007FEF2530000-0x000007FEF308D000-memory.dmp

Filesize
11.4MB

Download
memory/432-98-0x0000000002604000-0x0000000002607000-memory.dmp

Filesize
12KB

Download
memory/432-96-0x000007FEF3150000-0x000007FEF3B73000-memory.dmp

Filesize
10.1MB

Download
memory/432-94-0x0000000000000000-mapping.dmp

Download
memory/536-83-0x0000000000000000-mapping.dmp

Download
memory/752-77-0x0000000000000000-mapping.dmp

Download
memory/816-76-0x0000000000000000-mapping.dmp

Download
memory/908-99-0x0000000000000000-mapping.dmp

Download
memory/1068-104-0x0000000000000000-mapping.dmp

Download
memory/1144-56-0x0000000000000000-mapping.dmp

Download
memory/1348-92-0x0000000000000000-mapping.dmp

Download
memory/1376-102-0x0000000000000000-mapping.dmp

Download
memory/1428-86-0x0000000000000000-mapping.dmp

Download
memory/1548-80-0x0000000000000000-mapping.dmp

Download
memory/1668-82-0x0000000000000000-mapping.dmp

Download
memory/1740-74-0x0000000000000000-mapping.dmp

Download
memory/1744-90-0x0000000000000000-mapping.dmp

Download
memory/1776-54-0x0000000074C91000-0x0000000074C93000-memory.dmp

Filesize
8KB

Download
memory/1900-73-0x0000000018D30000-0x0000000019300000-memory.dmp

Filesize
5.8MB

Download
memory/1900-64-0x0000000000000000-mapping.dmp

Download
memory/1996-87-0x0000000000000000-mapping.dmp

Download