Analysis
- max time kernel
149s - max time network
155s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
05/05/2026, 12:17
Static task
static1
Behavioral task
behavioral1
Sample
kwtor.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
kwtor.dll
Resource
win11-20260130-en
General
- Target kwtor.dll
- Size 4.2MB
- Sample260505-pf13hsfv41
- SHA256 4decebf79d305dd15b222edefa271d353f8c39cf29235ea3a391b234917d4d25
- MD5 a995f4e3aff2514a01af0f29a0486144
- SHA1 bd682060494e0b26af6911795d3529a7c95f53b2
- SHA512 55c3a5683462f9ffa28a1c9d568559a1cf44ad91dcab65dc2f9f2ccdc4be50e5adc8869023665c30e832800866b30b73e03b8dc5f1f128b01e1f94cca1e1ef4f
- SSDEEP 49152:5j4nm6Wlm9hXoqbCiOxiwKwH84Mm2tNEKoFNTMRiZj2VQcT+9eJt:50XFCV5+ETWo4t
- TLSH T16F264A1BACFD4CDEC0A9F130C4736212FD657840572267C71AE0A6691E677F0AAF6B18
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Suspicious use of NtCreateUserProcessOtherParentProcess 2 IoCs
description pid Process procid_target PID 4680 created 3104 4680 rundll32.exe 53 PID 5348 created 3104 5348 dllhost.exe 53 - Badlisted process makes network request 3 IoCs
Network request originating from process or tool commonly abused by malware.
flow pid Process 2 5260 rundll32.exe 3 5260 rundll32.exe 4 5260 rundll32.exe - Executes dropped EXE 2 IoCs
pid Process 128 pylupdate6.exe 2492 pylupdate6.exe - Loads dropped DLL 8 IoCs
pid Process 128 pylupdate6.exe 128 pylupdate6.exe 2492 pylupdate6.exe 2492 pylupdate6.exe 128 pylupdate6.exe 128 pylupdate6.exe 128 pylupdate6.exe 128 pylupdate6.exe - Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 4680 rundll32.exe 5260 rundll32.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language pylupdate6.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language dllhost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language pylupdate6.exe - Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-600123060-2148212387-2211176695-1000_Classes\WOW6432Node\CLSID\{0F87369F-A4E5-4CFC-BD3E-73E6154572DD} dllhost.exe Set value (str) \REGISTRY\USER\S-1-5-21-600123060-2148212387-2211176695-1000_Classes\WOW6432Node\CLSID\{0F87369F-A4E5-4CFC-BD3E-73E6154572DD}\AppPath = "C:\\Users\\Admin\\AppData\\Roaming\\ResumeBackup\\Temp\\cb327c37.default-esr" dllhost.exe - Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 4680 rundll32.exe 4680 rundll32.exe 5260 rundll32.exe 5260 rundll32.exe 5260 rundll32.exe 5260 rundll32.exe 5260 rundll32.exe 5260 rundll32.exe 5260 rundll32.exe 5348 dllhost.exe - Suspicious behavior: MapViewOfSection 5 IoCs
pid Process 4680 rundll32.exe 5260 rundll32.exe 5260 rundll32.exe 5260 rundll32.exe 5260 rundll32.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeBackupPrivilege 5260 rundll32.exe Token: SeDebugPrivilege 5348 dllhost.exe - Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 4680 wrote to memory of 4100 4680 rundll32.exe 78 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 PID 4680 wrote to memory of 5260 4680 rundll32.exe 79 - 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:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3104
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\kwtor.dll,#12⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4680 -
C:\Windows\SysWOW64\dllhost.exeC:\Windows\SysWOW64\dllhost.exe3⤵PID:4100
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\SysWOW64\rundll32.exe2⤵
- Badlisted process makes network request
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:5260 -
C:\Program Files\Google\Chrome\Application\chrome.exeC:\Program Files\Google\Chrome\Application\chrome.exe3⤵PID:3564
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exeC:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe3⤵PID:3112
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C:\Windows\SysWOW64\dllhost.exe"C:\Windows\SysWOW64\dllhost.exe"3⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5348
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C:\Users\Admin\AppData\Roaming\ResumeBackup\Temp\cb327c37.default-esr\pylupdate6.exe"C:\Users\Admin\AppData\Roaming\ResumeBackup\Temp\cb327c37.default-esr\pylupdate6.exe" "C:\Users\Admin\AppData\Roaming\ResumeBackup\Temp\cb327c37.default-esr\node_modules.asar"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:128
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C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"1⤵PID:5936
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C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"1⤵PID:1900
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C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"1⤵PID:4604
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C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"1⤵PID:2828
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C:\Users\Admin\AppData\Roaming\ResumeBackup\Temp\cb327c37.default-esr\pylupdate6.exeC:\Users\Admin\AppData\Roaming\ResumeBackup\Temp\cb327c37.default-esr\pylupdate6.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2492
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\ResumeBackup\Temp\cb327c37.default-esr\VCRUNTIME140.dll
- Size 88KB
- SHA256 bf33857f46e56ea7930c1eea25c5f7175a6aaa3df36bf8301a785e6ca726a0b9
- MD5 c33386a6e67be415a24d9c431ffd42ac
- SHA1 f2f23860916471bdc332b3bd3e88deef64d4432b
- SHA512 bc6d5e908bfaa7a35a8f2e01912412b9460604ea19fd27ee5c6f1a05eb0180a07bf7bc26d430326afc9b81d7f19fb1899e6245196a37710c3e5346d0bc2b4c98
- SSDEEP 1536:EbiyVUrqIQsn1xtg6RxkkBGCGHDWbWXaecbGasQLvBrzU6LzNa:eiyLyt/xcRjWaXaecbGzurJBa
- TLSH T100937E5235E482B2DDAF04F0D97AEB076A3DA6900FF129F76B949949DE617C0D73020B
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\ResumeBackup\Temp\cb327c37.default-esr\_ctypes.pyd
- Size 123KB
- SHA256 09ab59603da0f270c5807d5af756b7dcbfe795a7cf4cb1210d75e602df61f7fa
- MD5 21dc72dd47e907e8d899fee445c1baea
- SHA1 9c6c6ee6623278d9313bb43c75e0562f8f56ab3b
- SHA512 8c7f174b111f5203f1d4a3842872b4196ee99e152881c615ee484fe03886896416486f01ea9baa841eda57f01a006b42a01fcebcfd6fdfe7f453a221dbf52ff2
- SSDEEP 3072:S6I0iVTA9Gdw8zuUIkq0vFYyFZ6EI1GPtX:6dwwudB0vpj6K
- TLSH T121C34A53B66CC026D6D400FDE3B996726A2F30B04F76C4D359592C885EA10E3AF7A3D6
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\ResumeBackup\Temp\cb327c37.default-esr\libffi-8.dll
- Size 34KB
- SHA256 b982741576a050860c3f3608c7b269dbd35ab296429192b8afa53f1f190069c0
- MD5 74d2b5e0120a6faae57042a9894c4430
- SHA1 592f115016a964b7eb42860b589ed988e9fff314
- SHA512 f3c62f270488d224e24e29a078439736fa51c9ac7b0378dd8ac1b6987c8b8942a0131062bd117977a37046d4b1488f0f719f355039692bc21418fdfbb182e231
- SSDEEP 768:J4QHHH1n906QVjoPX2onHfQX5YiSyv7JPxWE1f:JDHHH1n28fJU7SyNPxj
- TLSH T18EF29F025F404CA6DEDE993574AA9739CB397B441BD081E3133AE8B50F116E2F5B81DE
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\ResumeBackup\Temp\cb327c37.default-esr\node_modules.asar
- Size 26.8MB
- SHA256 1e5f251a796363918c46a44618504464c06de5b6bd05181403deba1dd2230eab
- MD5 5c69844aaca512e9cdc803cbb0e90310
- SHA1 7f043a6a714b52aa9f8cc6315dfe54e883e6c1c8
- SHA512 acc06addd5298143866ead45ce15b951fbc91f7fa2ad858cada9aaa33d51c01e8c39e02d427bc43b9f633ecc47ddfbf5dabf0c0217f3fc8b1fd22d7ad2d165e2
- SSDEEP 196608:IiILV2hDRvu39tCqfMpa7gFBpteqhJ1qfdHRlxokNf7wgQ2E:nILyvu/CqIa7gFB7eqkfJRlykNfEgQ2E
- TLSH T1CA57087867ECE6627349D30BDC20C86AA605C93FDB03A2585E676E675887F2F5F81031
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\ResumeBackup\Temp\cb327c37.default-esr\pylupdate6.exe
- Size 100KB
- SHA256 8f5dcca6baf511ac49393dff90b4bb666274a7640ef3c79cb28aaeb81b7f4e52
- MD5 f258109158af499b3ca733299bd62280
- SHA1 c6f996ebe5e690e9f4af38915415344c2fd4e073
- SHA512 885e4222961194026341ec6ec7d05ff4d573b547df45aab88232d150bbc33c4614bf7db5931014ec6b142542417ea1bfe2330952b4ec4774c6ac5a3ad5dc87c3
- SSDEEP 1536:3o2k7CIxHHWMpdPa5wiE21M8kJIGFvb1Cwv/84skZyvcvR9CfIL3u:QBwMpdCq/IM8uIGfV/84sIi
- TLSH T103A3F741E62DBDCEE548D4314A75E0F25E24ED723580A51EB7F37F062875293FA0A83A
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\ResumeBackup\Temp\cb327c37.default-esr\python3.dll
- Size 71KB
- SHA256 3e64f37a59274b8960c1d96b268934ed052eacfc885ce2ca85754c8ea80cf3f8
- MD5 8f79895709f19a9a4e922781dbacd6ad
- SHA1 aa944741dafa060611ab63b8172a34d490807a43
- SHA512 f5860ee564ad3e8d2ecd9f7520f24c8b6121ea09dc3750bdcd52035913005f570044a6dbb9029e86a9f56af30199a1df16778eaa8060a23f4cb40128248eb003
- SSDEEP 768:tQlHwMvmhZpNVBBr2KyrGYpoQdFxxI4XngqMkf/tFd1WugwBByCsAKyEG+zMRKIJ:gbTrnXngXMZEI1G0uyvcvR9lfILLEU
- TLSH T1B0734D5E6B54F8A2D6F629FC78D199CE242B12FC5F2984DFA47CD3920D1A310A22734D
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\ResumeBackup\Temp\cb327c37.default-esr\python314._pth
- Size 80B
- SHA256 2ed7ccda80e9e28ab5877902a9a325586c8a7b7b3e6731d944565bee082e216c
- MD5 fd5220307b5be48ceb9092be8b37598c
- SHA1 11c7160d662e3452c23aebf14fa6a0326283a39c
- SHA512 031dee74946f3c8146e35d07dd976971299eeb836d41d4c4992e504089fda3ae15de9451915bdcc3062d6b10c6aa6f6315a5d6db5dbe80d9a9b1d1d547fa3f21
- TLSH T1A3A0220208A30080002020283FE000F88F32330C8F20320E8AC0AE380200E30ABE202F
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Roaming\ResumeBackup\Temp\cb327c37.default-esr\python314.dll
- Size 5.6MB
- SHA256 20d2e71df41ceb8a7d6f6c9777b7306deec91b74c2aa350d0ad02ebf5d7008ec
- MD5 4ddaa84d929f0c161693a5e0f791df05
- SHA1 53fb6153c259fc1d48e47603b73d8cd03c856abb
- SHA512 4b98354d1324ccb2a813d0d3c95fe1dba8521acf729ba26cb51b1b46aa8c274c1242f9613399241fe66a34e40ad49517a13baec6d709c344236590fabed164fa
- SSDEEP 98304:Bn+YrvybTDhTSSTSaQz+fAWBfVrc5r4HeMeGq6Q2wU:BnPvuhTSSIc+Ye4wU
- TLSH T194466C30F5B68469ECED00F1A2BB59775A6D1D04773484D3A8947C983C701E2A3FAEDA
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\ResumeBackup\Temp\cb327c37.default-esr\python314.zip
- Size 3.9MB
- SHA256 ee641e97ca4a0f948308a4991662aa44907d5e92806bf04e1798105e7aa938e3
- MD5 6f4344feff8e22cee47b04b6583b45da
- SHA1 814e99ae34bb0d28f6ffe5e93c07b9a622005e5b
- SHA512 210cd9402c4d1e3b1b91ee7b28455e4a83a0614a8e5fd8db785c4a4bd833c40696398c1a90d55f5749f3ec70532c8a2737bc989d8511e67f8b18632b31c332a7
- SSDEEP 98304:D7NTpJLBkBI/NYoVF91dG2H0wTot4YdqoM:HNTsIXF91dG2UwTot4YdqoM
- TLSH T13B163361DB7E0623FA63BB787A57CD09101E83A03104B53EDC0C9AE59C5539E877EB29
- MD5 SHA1 SHA512 SSDEEP TLSH