Analysis
- max time kernel
148s - max time network
124s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/11/2026, 06:40
Behavioral task
behavioral1
Sample
31108dc983e303117e22d2a6a5a08d5142196ab44daed8cbb811aaf1a17f7722.exe
Resource
win10v2004-20260911-en
5 signatures
150 seconds
General
- Target 31108dc983e303117e22d2a6a5a08d5142196ab44daed8cbb811aaf1a17f7722.exe
- Size 307KB
- Sample261102-hfnc4att5p
- SHA256 31108dc983e303117e22d2a6a5a08d5142196ab44daed8cbb811aaf1a17f7722
- MD5 7d25d6fca00ee0e3e3aef0e238339eac
- SHA1 1cb12057b5240743bf409f462fa39b4600cc4a47
- SHA512 04c90e8e90c06457c6ac5c6375611e8d93262e9f722496ac9a1a80443d89ef74fd3e59c7afa2b661b045adb3d7d85e6a94d71cdf93adf536a33b8a107765d719
- SSDEEP 6144:MNdf0ec5+p/+H6Yp65n1oS89t2QLASrHUxBSaN1K:MnWHTc5n1oS8CQpaN1K
- TLSH T181641A1BB3E309FCD66B823986A6D3729931F4140335FA1E1A94CB333D61D605F6AB58
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 3 IoCs
pid Process 5604 Eupdate Helper.exe 5104 Eupdate Helper.exe 4768 Eupdate Helper.exe -
resource yara_rule behavioral2/memory/2028-0-0x0000000140000000-0x0000000140050000-memory.dmp upx behavioral2/files/0x0005000000016b48-6.dat upx behavioral2/memory/2028-7-0x0000000140000000-0x0000000140050000-memory.dmp upx behavioral2/files/0x001600000001bbe9-25.dat upx behavioral2/memory/5604-41-0x0000000140000000-0x0000000140050000-memory.dmp upx behavioral2/memory/5104-54-0x0000000140000000-0x0000000140050000-memory.dmp upx behavioral2/memory/4768-56-0x0000000140000000-0x0000000140050000-memory.dmp upx - Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname Eupdate Helper.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain Eupdate Helper.exe - Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 5104 Eupdate Helper.exe 5104 Eupdate Helper.exe 5104 Eupdate Helper.exe 5104 Eupdate Helper.exe 5104 Eupdate Helper.exe 5104 Eupdate Helper.exe 5104 Eupdate Helper.exe 5104 Eupdate Helper.exe 5104 Eupdate Helper.exe 5104 Eupdate Helper.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2028 wrote to memory of 5604 2028 31108dc983e303117e22d2a6a5a08d5142196ab44daed8cbb811aaf1a17f7722.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\31108dc983e303117e22d2a6a5a08d5142196ab44daed8cbb811aaf1a17f7722.exe"C:\Users\Admin\AppData\Local\Temp\31108dc983e303117e22d2a6a5a08d5142196ab44daed8cbb811aaf1a17f7722.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2028 -
C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe"C:\Users\Admin\AppData\Local\Temp\31108dc983e303117e22d2a6a5a08d5142196ab44daed8cbb811aaf1a17f7722.exe"2⤵
- Executes dropped EXE
PID:5604
-
-
C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe"C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe" --service1⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- Suspicious behavior: EnumeratesProcesses
PID:5104
-
C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe"C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe" --guard1⤵
- Executes dropped EXE
PID:4768
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe
- Size 307KB
- SHA256 31108dc983e303117e22d2a6a5a08d5142196ab44daed8cbb811aaf1a17f7722
- MD5 7d25d6fca00ee0e3e3aef0e238339eac
- SHA1 1cb12057b5240743bf409f462fa39b4600cc4a47
- SHA512 04c90e8e90c06457c6ac5c6375611e8d93262e9f722496ac9a1a80443d89ef74fd3e59c7afa2b661b045adb3d7d85e6a94d71cdf93adf536a33b8a107765d719
- SSDEEP 6144:MNdf0ec5+p/+H6Yp65n1oS89t2QLASrHUxBSaN1K:MnWHTc5n1oS8CQpaN1K
- TLSH T181641A1BB3E309FCD66B823986A6D3729931F4140335FA1E1A94CB333D61D605F6AB58
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe
- Size 307KB
- SHA256 27aad3a31489020b0df4ee38b78b8df292b401365c379fec35b8d26688191f6e
- MD5 7144b40215105d25a49e302a838a682e
- SHA1 b4f932cdde552831133ea2f72cc23ae5e96dcdbd
- SHA512 b72206180a615edd43175521609965a190d8c9a06532bc1d081a44945e5d51b445d8cf4ae42591899701d932da45d7c800181036399dbb5d3f0772c4e8037507
- SSDEEP 6144:MNdf0ec5+p/+H6Yp65n1oS89t2QLASrHUxBSaN1n:MnWHTc5n1oS8CQpaN1n
- TLSH T171641A1BB3E309FCD66B823986A6D3729931F4140335FA1E1A94CB333D61D605F6AB58
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\EupdateHelper.log
- Size 1KB
- SHA256 540ee39f597a3475a24b967e6e83afea1fe621c576186fd2caa294dc3ae6419b
- MD5 8464092e1675a35682b69fda64adf987
- SHA1 049bbc60ca349eb959f985f213c82153b9e31087
- SHA512 9824ad86532372a80e417a040f6639f8458e0b785e3c5bf20037c22461d17070b44949d0dc4225e923c365abde76e4f593acb480a190df05439c107613e026ef
- TLSH T150419E3E66F805A6D7BBD902E8FB450BB97979917935890E06C243CC1C72601B5E3F4E
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\EupdateHelper.log
- Size 866B
- SHA256 2385142420ef24ad4050f79b8fbb6c989ecbaaaaebf1f87eb18f041ebf1bd7b5
- MD5 c544e50e9808fef23035b5591d1545f9
- SHA1 82db8dde8722474d62cfda7d179328f2ba48b2ce
- SHA512 b23b4ba2a561a87b7dab257b40e3f85d2b400152286b9498897784ecd666d453203cb3bf4deaf818822d1b14f51bcb95971c352934ed23ec78d07888a46d63cd
- TLSH T121114C2E69B80592D7BAC902E8FB400BB5747AD16936890D46C243C82CB2602B5E3F5E
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\TEMP\EupdateHelper.log
- Size 3KB
- SHA256 748681c51e05412065ef98af16759def76d20ddddc475902c8b69f190b4eeb2b
- MD5 45b01646f49b88a71fbed09dee8f890d
- SHA1 d9366bbedd96cbd41fe76ca87195b69eecaab092
- SHA512 b78bd406c2272523ad1918af210ea4c9d36b9c2cf8dcac6b24801f1b1dd4156918249d6912f5a6d95aa291c4686ae69cacb9ffb0ab829b4c96604a7a5dea04b7
- TLSH T12A718E2923B84687F67A8913D8F6851FBA353A91AA75C94E03C243CD1C73101E6E3F5E
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\Temp\EupdateHelper.log
- Size 2KB
- SHA256 61d5ea5b450130927b4ef5954de3c280ad2484f2dff80c150c06393638e0ff2e
- MD5 6c89f65f7779300781da74b7da5c1a43
- SHA1 ed01776f4fe0ef782156d3f42131bf25ca989f96
- SHA512 a3e6ea14f161b9d9e02ead3eafd255e9ea1ed831bd689b3fdbf193247348439e4e2b072d13599875f2490c7076abc7e053f324631a60cd8200999fa470425731
- TLSH T1F241AC6923F84686F67A9923D8F2850FBA3539416A39D94E03C243CE0C72100E6E3F5E
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\Temp\EupdateHelper.log
- Size 2KB
- SHA256 e3ffd6c25deab8e3826d1710569d622827969a4ae22f70d08fc7fc93292702ab
- MD5 33ef051f5cf5c8fe29bc310488610885
- SHA1 7c3e4ddb68c6a2a65a4c95c5fafdf02f9f5062eb
- SHA512 23d8d80867a5dfc95c5dc7380af660256c7c90e763f2a9bd7a4a061989a24c182016ef39ec7a413b3ea6d5a3fdf2a682b6c158e2a0c2686aaaf1402753543af1
- TLSH T1E9519D6923B84687F67A9A13D8F2840FBA3539816A75C94E03C243CD1C73100E6E3F5E
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\Temp\EupdateHelper.log
- Size 4KB
- SHA256 b4a09eaa8e203712973d14f71f35131b0d7c28fc443cad4e29803de7769d4392
- MD5 6ad728a50a765e7a43285e11af16cebd
- SHA1 8d67945bd1f1fa6be95b729fd92f38fd0f68a7b0
- SHA512 49de25cbd7be04e059b9fee4e9b51fe43337836713e661357860327daa1678d816edfbcdaf2b55866ea41ad80b4c19112553f4969a391d4b8d01d4c373bdeeb3
- SSDEEP 48:pVYL0UPN+YnHJKLZxWs4r4bM2k44YW49PwZ6X5MHKg0D1fYnH5zLR4mLfNbkbmEx:r6W7+cMzKWAwyiX7rNbDEREPqQviwnLM
- TLSH T1F4A1AE3923F84687E67A9913D8F6851FBA3539816A75C94E02C243CD1CB3101E6A3F5E
- MD5 SHA1 SHA512 SSDEEP TLSH