Analysis
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max time kernel
151s -
max time network
64s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
07-11-2022 01:53
Behavioral task
behavioral1
Sample
c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe
Resource
win10v2004-20220812-en
General
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Target
c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe
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Size
524KB
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MD5
1307290a1f7aa677ab118cadfa75fde0
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SHA1
67d7ed206a3f70b05ab2bec29dfd5826be4d53be
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SHA256
c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914
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SHA512
32b91d4c7664aa202dd8f9b7d155edbd9be2434ad3d5a313600ceeb285a173d963750cc691984107b436cd86033cccce48d52d2a2afedeeea346ef9470e53e53
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SSDEEP
6144:RUABFk4+pAuO/50BTnqPd0Mpz7qhh4nXjjf8MZ9BKXKKk4+pAuO/50BTnqPd0MpY:GUdGLE0kuGnESBaGLE0kuGnESBW
Malware Config
Signatures
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Adds policy Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Policies = "C:\\Windows\\install\\server.exe" c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Policies = "C:\\Windows\\install\\server.exe" c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe -
Executes dropped EXE 1 IoCs
pid Process 1144 server.exe -
Modifies Installed Components in the registry 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{LLCHF55T-KR33-1552-35PK-20AE6BQC315D}\StubPath = "C:\\Windows\\install\\server.exe" explorer.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{LLCHF55T-KR33-1552-35PK-20AE6BQC315D} c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{LLCHF55T-KR33-1552-35PK-20AE6BQC315D}\StubPath = "C:\\Windows\\install\\server.exe Restart" c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{LLCHF55T-KR33-1552-35PK-20AE6BQC315D} explorer.exe -
resource yara_rule behavioral1/memory/2016-56-0x0000000010410000-0x0000000010471000-memory.dmp upx behavioral1/memory/2016-65-0x0000000010480000-0x00000000104E1000-memory.dmp upx behavioral1/memory/1892-70-0x0000000010480000-0x00000000104E1000-memory.dmp upx behavioral1/memory/1892-73-0x0000000010480000-0x00000000104E1000-memory.dmp upx behavioral1/memory/2016-78-0x00000000104F0000-0x0000000010551000-memory.dmp upx behavioral1/memory/612-83-0x00000000104F0000-0x0000000010551000-memory.dmp upx behavioral1/memory/612-89-0x00000000104F0000-0x0000000010551000-memory.dmp upx behavioral1/memory/612-90-0x00000000104F0000-0x0000000010551000-memory.dmp upx -
Deletes itself 1 IoCs
pid Process 612 explorer.exe -
Loads dropped DLL 2 IoCs
pid Process 612 explorer.exe 612 explorer.exe -
Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\install\\server.exe" c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\install\\server.exe" c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe -
Drops desktop.ini file(s) 1 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini explorer.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\install\server.exe c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe File opened for modification C:\Windows\install\server.exe explorer.exe File opened for modification C:\Windows\install\ explorer.exe File created C:\Windows\install\server.exe c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 1144 server.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 612 explorer.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 612 explorer.exe Token: SeDebugPrivilege 612 explorer.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 612 explorer.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 612 explorer.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9 PID 2016 wrote to memory of 1368 2016 c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe 9
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1368
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C:\Users\Admin\AppData\Local\Temp\c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe"C:\Users\Admin\AppData\Local\Temp\c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914.exe"2⤵
- Adds policy Run key to start application
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2016 -
C:\Windows\SysWOW64\explorer.exeexplorer.exe3⤵
- Modifies Installed Components in the registry
PID:1892
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C:\Windows\SysWOW64\explorer.exeexplorer.exe3⤵
- Deletes itself
- Loads dropped DLL
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:612 -
C:\Windows\install\server.exe"C:\Windows\install\server.exe"4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:1144
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
222KB
MD5973b540178846362e75e3b8ed58ed74a
SHA197e4ff9d57575206ecf66620b44d88e492e1ed71
SHA256032ea97c3325efde92d1512139389b6e1e1ed7c35b220e9d6f689414c1f639b4
SHA512ae2d8c04b9736b10773248abdd212765e363ee7f349f60f7a60816efdcbbfe150937c69f881eed2893c6539048fb28f0db2843d3f6f3fb81aaf744e430ca316c
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Filesize
524KB
MD51307290a1f7aa677ab118cadfa75fde0
SHA167d7ed206a3f70b05ab2bec29dfd5826be4d53be
SHA256c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914
SHA51232b91d4c7664aa202dd8f9b7d155edbd9be2434ad3d5a313600ceeb285a173d963750cc691984107b436cd86033cccce48d52d2a2afedeeea346ef9470e53e53
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Filesize
524KB
MD51307290a1f7aa677ab118cadfa75fde0
SHA167d7ed206a3f70b05ab2bec29dfd5826be4d53be
SHA256c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914
SHA51232b91d4c7664aa202dd8f9b7d155edbd9be2434ad3d5a313600ceeb285a173d963750cc691984107b436cd86033cccce48d52d2a2afedeeea346ef9470e53e53
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Filesize
524KB
MD51307290a1f7aa677ab118cadfa75fde0
SHA167d7ed206a3f70b05ab2bec29dfd5826be4d53be
SHA256c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914
SHA51232b91d4c7664aa202dd8f9b7d155edbd9be2434ad3d5a313600ceeb285a173d963750cc691984107b436cd86033cccce48d52d2a2afedeeea346ef9470e53e53
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Filesize
524KB
MD51307290a1f7aa677ab118cadfa75fde0
SHA167d7ed206a3f70b05ab2bec29dfd5826be4d53be
SHA256c131793cda71dacda3048f8375e4c188077ec5edd468d22449fb76e657aa1914
SHA51232b91d4c7664aa202dd8f9b7d155edbd9be2434ad3d5a313600ceeb285a173d963750cc691984107b436cd86033cccce48d52d2a2afedeeea346ef9470e53e53