Analysis
- max time kernel
150s - max time network
125s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
11/10/2026, 10:26
Behavioral task
behavioral1
Sample
55d5a681021e1b5d441c5c4e11fd1b269d9002f3b5dab11119a369a75b0647bc.exe
Resource
win10v2004-20260911-en
5 signatures
150 seconds
General
- Target 55d5a681021e1b5d441c5c4e11fd1b269d9002f3b5dab11119a369a75b0647bc.exe
- Size 101KB
- Sample261011-mgl9mszvbw
- SHA256 55d5a681021e1b5d441c5c4e11fd1b269d9002f3b5dab11119a369a75b0647bc
- MD5 64c914d4b5688b2171aa4ba2012ae658
- SHA1 586586b3f266379fd937692cc712a2f31e58a7b1
- SHA512 2a830aeb2100ae53bb09559d65fb8c6918a8fbfc3e6b615fa1828eab1dcca662975a09466cd22ca5e4cd8a699756215b0f98a71bef821570ca044f7b0f74332d
- SSDEEP 1536:lm/Yd7d42fpHoDB7iXir7Aqyq7SrV6xl8kXjJcsOQu7/HTjoblY3asRLTfMYJBwa:oodh4B7iivyRrVs8gJcmuTHoblY39BQe
- TLSH T1C8A31283FBBB9640C6A7B6772B455164D1763C82C13FEA0BABD05789349A7B031ACC74
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 3 IoCs
pid Process 5292 Eupdate Helper.exe 2468 Eupdate Helper.exe 4180 Eupdate Helper.exe -
resource yara_rule behavioral2/memory/4148-0-0x0000000140000000-0x000000014004D000-memory.dmp upx behavioral2/files/0x000d00000001c640-6.dat upx behavioral2/memory/4148-8-0x0000000140000000-0x000000014004D000-memory.dmp upx behavioral2/files/0x000d00000001c645-26.dat upx behavioral2/memory/5292-42-0x0000000140000000-0x000000014004D000-memory.dmp upx behavioral2/memory/2468-56-0x0000000140000000-0x000000014004D000-memory.dmp upx behavioral2/memory/4180-58-0x0000000140000000-0x000000014004D000-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 2468 Eupdate Helper.exe 2468 Eupdate Helper.exe 2468 Eupdate Helper.exe 2468 Eupdate Helper.exe 2468 Eupdate Helper.exe 2468 Eupdate Helper.exe 2468 Eupdate Helper.exe 2468 Eupdate Helper.exe 2468 Eupdate Helper.exe 2468 Eupdate Helper.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4148 wrote to memory of 5292 4148 55d5a681021e1b5d441c5c4e11fd1b269d9002f3b5dab11119a369a75b0647bc.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\55d5a681021e1b5d441c5c4e11fd1b269d9002f3b5dab11119a369a75b0647bc.exe"C:\Users\Admin\AppData\Local\Temp\55d5a681021e1b5d441c5c4e11fd1b269d9002f3b5dab11119a369a75b0647bc.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4148 -
C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe"C:\Users\Admin\AppData\Local\Temp\55d5a681021e1b5d441c5c4e11fd1b269d9002f3b5dab11119a369a75b0647bc.exe"2⤵
- Executes dropped EXE
PID:5292
-
-
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:2468
-
C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe"C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe" --guard1⤵
- Executes dropped EXE
PID:4180
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe
- Size 101KB
- SHA256 55d5a681021e1b5d441c5c4e11fd1b269d9002f3b5dab11119a369a75b0647bc
- MD5 64c914d4b5688b2171aa4ba2012ae658
- SHA1 586586b3f266379fd937692cc712a2f31e58a7b1
- SHA512 2a830aeb2100ae53bb09559d65fb8c6918a8fbfc3e6b615fa1828eab1dcca662975a09466cd22ca5e4cd8a699756215b0f98a71bef821570ca044f7b0f74332d
- SSDEEP 1536:lm/Yd7d42fpHoDB7iXir7Aqyq7SrV6xl8kXjJcsOQu7/HTjoblY3asRLTfMYJBwa:oodh4B7iivyRrVs8gJcmuTHoblY39BQe
- TLSH T1C8A31283FBBB9640C6A7B6772B455164D1763C82C13FEA0BABD05789349A7B031ACC74
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\Eupdate Helper.exe
- Size 101KB
- SHA256 4a0a17a471edfc2dd6a85ccb00630344e88136d5c6a350f3614df498c0dedaf9
- MD5 64f9283b0654f7bc8fab17f83c5029cf
- SHA1 c4ed254f857b288f8a5aa512ca7a90142e0f0ed0
- SHA512 f7092f62d09d8f0747b1b135694a858c565492e6e4e4149e772f2ff2b8bef71020f821040fc7b3473e1bb96ceaa0ff87b9904dd273f6f5e7df6f611d3484bbf3
- SSDEEP 1536:lm/Yd7d42fpHoDB7iXir7Aqyq7SrV6xl8kXjJcsOQu7/HTjoblY3asRLTfMYJBwf:oodh4B7iivyRrVs8gJcmuTHoblY39BQz
- TLSH T16CA31283FBBB9640C6A7B6772B455164D1763C82C13FEA0BABD05789349A7B031ACC74
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\EupdateHelper.log
- Size 2KB
- SHA256 1e2a292cec05476fe6d54f682a62a42a11e87df8fab3f3e14053a869211e57fb
- MD5 e9c54fdc6cb9259478e1779a39516eb6
- SHA1 a480b610522362cd77c7c9bdeb01e44ad6a0b588
- SHA512 eb7eda729ae44509c042b42b71b9c47f3e52e71e5d2384c2cf71a5bded236765e0935d1bb9b2fc09c49bd4ed95b5c2f9fac52f0f1b47a15cc56aa1ea2eb22fbf
- TLSH T1C441F52D1AE80021EBBBCA03D8FB8457BB75B9607835980E06C107CD2C61608F9E3F9D
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\EupdateHelper.log
- Size 866B
- SHA256 f99a21970936bdf3327abc4a2e88692f9f9c26f9fad14759bd3d6f994afdb97d
- MD5 e3060985e04f6b1f77cdd033c6acd43a
- SHA1 7d119ad90908dab96c94740b2a4b04f83c46457f
- SHA512 47c9a57acac3c56bd0768d7e3d224e8c7f91f4e6785a886883a1c2c4a36b1a3ef86f0fd2e82e0aed0bd4f2aa64127cc4a981679885007aef3bf3d9b155a018cb
- TLSH T11811D8291A980113EBBBC543D9FB4457FB7478607C31A90E468207CD3C62618E5D7F9D
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\TEMP\EupdateHelper.log
- Size 3KB
- SHA256 6ea31bca0b71c7fe7511c71890afa9b71ab90b16ac8bc9695065225672ebfd93
- MD5 9358a0282900f3cc5f54bab8534068f9
- SHA1 c18ac1f77d035c42ebaefdd1af0dcc8e15ba759b
- SHA512 d1d694ac04d072a01a5d6c66dc3132d751cde496220e89ffe9db03a0949941eada6a27614ab99cde3328fbe8d9ffcc536e02435f1469bc1fa5a88fcc13b17938
- TLSH T1A771692F1BA80216E673DA07D8FA841A7B3539917935D94D16C087CD2C72105BAE3F9E
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\Temp\EupdateHelper.log
- Size 2KB
- SHA256 f7529efcd6659fb43d5508a3b29eef223c37b6c7e7780fcb48ad373581e4dcc2
- MD5 b277b29c45655e871653dd7980789154
- SHA1 e718e33d2db205fb5b7b63fdd4c50c368ff190c8
- SHA512 74ff9da7a45013e7e954d8326960630671768ff2c9568ef43e7718e47d53f8ac12f64b0d97806234bd16c551420600a00623bc4774efd80ec3c0b37a7d99b96a
- TLSH T18A51992A1BE80112F6B3DA03D8FA881A7A3539917935D90D06C087CD2C72505FAE3F9E
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\Temp\EupdateHelper.log
- Size 2KB
- SHA256 eb859a4e24f80f991fdf62c351b9f2e958e0222bbc1a538a630be24df2073770
- MD5 c483623277e984e6ec8d1c8045ef8f7e
- SHA1 09bea3e9930a951567355205b0104636fc644846
- SHA512 4703530ff9e37dc4a1b7adcc454b9c10baa4664588aa720a79437d6d1045ec527aae1dc5a6f5ce5a71a51c1ffd7af828de4acbf4640b58f307f3ebba73b85e7f
- TLSH T113519B2A17A80116F6B3DA03D8FAC41A7B3539917935D94D16C087CD2C72505FAE3F9E
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\Temp\EupdateHelper.log
- Size 4KB
- SHA256 9b556fefc80bafca6d3ed75d08c08976d364cfd040bf52e3222053ab69d17a21
- MD5 ed3c4abc2ae45ca583e08b0552b9bf87
- SHA1 97c76a7f7bfd0c1ae5354ac6924ed1233433291e
- SHA512 5bb9909a11f7071585d7791ec8598196b9003a0ab0bbc0631e7ae5a2a87f26774445c7d2823ee6d8295786e593a45555eac987d4edf8b8d7e5e771a539ac989b
- SSDEEP 48:kaPg08YfYnHEzL2crjTM2BQYjlPwZkf5Yh0j1YnHFL6XqfNbkLLILPqMyhyL/VMz:/KIMupwaYhvNb+8PqBSOw7fM
- TLSH T1BBA1BD2F1BE80216E673DA03D8FB841A7A3539917975C90D16C0878D2CB2502F6A3F9E
- MD5 SHA1 SHA512 SSDEEP TLSH