Analysis
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max time kernel
142s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
25/12/2023, 18:11
Static task
static1
Behavioral task
behavioral1
Sample
33839378c2e7d9d7389f59b4ec7259b6.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
33839378c2e7d9d7389f59b4ec7259b6.exe
Resource
win10v2004-20231215-en
General
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Target
33839378c2e7d9d7389f59b4ec7259b6.exe
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Size
270KB
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MD5
33839378c2e7d9d7389f59b4ec7259b6
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SHA1
4f09a1d7c231ed9e4500e6ae47664331d35a6f91
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SHA256
f0e7b3877666f3bbfdac4dc42d4bf7507a90d88bfdec1b47cb04151ce55dc029
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SHA512
a69a3d4319e58f6071bd02e2066fc6d8d3e7334f63e285b83dc8a3213087398f014741a1fcb8104c9106e258a98aee347a5996c94fe425912a5c7d5dea84a88f
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SSDEEP
6144:q7chyTTTWcvX2WcN7E1PrLEc1js20n7tIs2MS8TYoCh:q7zTKMX2Wk7mrDsh7tIs2KMoC
Malware Config
Signatures
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Modifies security service 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "3" 33839378c2e7d9d7389f59b4ec7259b6.exe -
Disables taskbar notifications via registry modification
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Modifies Installed Components in the registry 2 TTPs 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Active Setup\Installed Components explorer.exe -
Executes dropped EXE 1 IoCs
pid Process 2152 9859.tmp -
Loads dropped DLL 2 IoCs
pid Process 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 1732 33839378c2e7d9d7389f59b4ec7259b6.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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resource yara_rule behavioral1/memory/1732-1-0x0000000000400000-0x000000000046A000-memory.dmp upx behavioral1/memory/1732-42-0x0000000000400000-0x000000000046A000-memory.dmp upx behavioral1/memory/2852-44-0x0000000000400000-0x000000000046A000-memory.dmp upx behavioral1/memory/1732-103-0x0000000000400000-0x000000000046A000-memory.dmp upx behavioral1/memory/1148-144-0x0000000000400000-0x000000000046A000-memory.dmp upx behavioral1/memory/1732-143-0x0000000000400000-0x000000000046A000-memory.dmp upx behavioral1/memory/1732-205-0x0000000000400000-0x000000000046A000-memory.dmp upx behavioral1/memory/1732-231-0x0000000000400000-0x000000000046A000-memory.dmp upx behavioral1/memory/1732-234-0x0000000000400000-0x000000000046A000-memory.dmp upx behavioral1/memory/1732-237-0x0000000000400000-0x000000000046A000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\162.exe = "C:\\Program Files (x86)\\LP\\24C7\\162.exe" 33839378c2e7d9d7389f59b4ec7259b6.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\Program Files (x86)\LP\24C7\162.exe 33839378c2e7d9d7389f59b4ec7259b6.exe File opened for modification C:\Program Files (x86)\LP\24C7\9859.tmp 33839378c2e7d9d7389f59b4ec7259b6.exe File opened for modification C:\Program Files (x86)\LP\24C7\162.exe 33839378c2e7d9d7389f59b4ec7259b6.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_Classes\Local Settings explorer.exe Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff explorer.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 1732 33839378c2e7d9d7389f59b4ec7259b6.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 908 explorer.exe -
Suspicious use of AdjustPrivilegeToken 15 IoCs
description pid Process Token: SeRestorePrivilege 2756 msiexec.exe Token: SeTakeOwnershipPrivilege 2756 msiexec.exe Token: SeSecurityPrivilege 2756 msiexec.exe Token: SeShutdownPrivilege 908 explorer.exe Token: SeShutdownPrivilege 908 explorer.exe Token: SeShutdownPrivilege 908 explorer.exe Token: SeShutdownPrivilege 908 explorer.exe Token: SeShutdownPrivilege 908 explorer.exe Token: SeShutdownPrivilege 908 explorer.exe Token: SeShutdownPrivilege 908 explorer.exe Token: SeShutdownPrivilege 908 explorer.exe Token: SeShutdownPrivilege 908 explorer.exe Token: SeShutdownPrivilege 908 explorer.exe Token: SeShutdownPrivilege 908 explorer.exe Token: SeShutdownPrivilege 908 explorer.exe -
Suspicious use of FindShellTrayWindow 28 IoCs
pid Process 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe -
Suspicious use of SendNotifyMessage 18 IoCs
pid Process 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe 908 explorer.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1732 wrote to memory of 2852 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 30 PID 1732 wrote to memory of 2852 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 30 PID 1732 wrote to memory of 2852 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 30 PID 1732 wrote to memory of 2852 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 30 PID 1732 wrote to memory of 1148 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 32 PID 1732 wrote to memory of 1148 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 32 PID 1732 wrote to memory of 1148 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 32 PID 1732 wrote to memory of 1148 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 32 PID 1732 wrote to memory of 2152 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 35 PID 1732 wrote to memory of 2152 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 35 PID 1732 wrote to memory of 2152 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 35 PID 1732 wrote to memory of 2152 1732 33839378c2e7d9d7389f59b4ec7259b6.exe 35 -
System policy modification 1 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer 33839378c2e7d9d7389f59b4ec7259b6.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\HideSCAHealth = "1" 33839378c2e7d9d7389f59b4ec7259b6.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\33839378c2e7d9d7389f59b4ec7259b6.exe"C:\Users\Admin\AppData\Local\Temp\33839378c2e7d9d7389f59b4ec7259b6.exe"1⤵
- Modifies security service
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1732 -
C:\Users\Admin\AppData\Local\Temp\33839378c2e7d9d7389f59b4ec7259b6.exeC:\Users\Admin\AppData\Local\Temp\33839378c2e7d9d7389f59b4ec7259b6.exe startC:\Users\Admin\AppData\Roaming\7FB5B\27024.exe%C:\Users\Admin\AppData\Roaming\7FB5B2⤵PID:2852
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C:\Users\Admin\AppData\Local\Temp\33839378c2e7d9d7389f59b4ec7259b6.exeC:\Users\Admin\AppData\Local\Temp\33839378c2e7d9d7389f59b4ec7259b6.exe startC:\Program Files (x86)\5BA21\lvvm.exe%C:\Program Files (x86)\5BA212⤵PID:1148
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C:\Program Files (x86)\LP\24C7\9859.tmp"C:\Program Files (x86)\LP\24C7\9859.tmp"2⤵
- Executes dropped EXE
PID:2152
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C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2756
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C:\Windows\explorer.exeexplorer.exe1⤵
- Modifies Installed Components in the registry
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:908
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
1Windows Service
1Replay Monitor
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Downloads
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Filesize
996B
MD5b517585d622472d667edb1b107270a57
SHA1fde0e6043492c99152b8cf087f0a2b57bfcdf7b1
SHA256a9b9b31ea9a7af01d7b99b75941c00c1b1e999f3347a06dde428e336982b0a99
SHA512c83b583c94c9a033cb8af3744de1d06c8875ac85c189ef2c3b31821939eec11eb6f539989972d456f3a213c14a6505df0b5cb7e1affeffa1c6868eb626b8f321
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Filesize
1KB
MD5301ddb8999c38b36c5f6765a3eca284f
SHA1fce68a5e90381fae3f42ecbba48665bc28c5306d
SHA2564d61321d994fbc275ae9dde482e684d0217d1f5e1d75c768fc629056983c5075
SHA512e09f247420a611e050c354ecfe78e1df55433335dd302ddc8d02c760488e746866c66a5fd6f5ad2e23cc1c02e3c03895c46920cdbbb2f0bc05188d6080d40fb9
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Filesize
600B
MD5c6ac82f62f000183b1d81bdb74877485
SHA14531a558f013cd351f3e6a389391739750ca54d2
SHA25675314e54187d236230432e3c6b7a2214ec952af1adc3bbda70846774d061c10b
SHA512d4f0467ba3b3da861ec2806c610d635cae019e06436e93d6d0be3c42e9bc4fbaac1aade42700beb648135b283afbc8b43e9e08afb5c7e83a2c748f7139a2afd9
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Filesize
300B
MD53b592ea145183e01f106ae410598979a
SHA12058f36fe05ad0eac1997eb39b09de537903053a
SHA2565df3dd54cd674a4f20db844496be8ff97f1ad46dcd52bbb5e1fd70a614f7ba5d
SHA512ba8b93c36c3c8b3df6277d2bdca2d0993aa651ed1d3ed14647f33d904e8bc18b8b633758aa009caf3c804e1191001eda53153cf6827281d7b9fa4d513331d5ea
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Filesize
96KB
MD5c7fd5af753f98f1417ae0231c6020ea8
SHA15500fb4e4f2f45bdfca8f30eb87ca2bc9f943484
SHA256afd67533c3e1be97290f16074059ec0a21a23c8c62c21e96e21e1572cd559b68
SHA51244bfc2eb76ceba244a0912d5970f0ec04162268c2af293b89d0c4d51b3a6502e1349e7089a1138b31c51775d1b71adedc48f40425ed5d9f6e7062348ad06bab9