Analysis
- user interaction
yes - max time kernel
149s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
27/07/2026, 05:13
Static task
static1
Behavioral task
behavioral1
Sample
USB_Driver.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
USB_Driver.exe
Resource
win11ltsc2024-20260709-en
Behavioral task
behavioral3
Sample
imdiskinst.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral4
Sample
imdiskinst.exe
Resource
win11ltsc2024-20260709-en
General
- Target imdiskinst.exe
- Size 536KB
- Sample260727-fwthyahk7s
- SHA256 11d3423f3971b4d7a2bbda538e47998be901199546b36455315f22d3fc8b8a04
- MD5 faf8448e108d159b49638aba5e37f3c7
- SHA1 d6b064661f48336a7cac57ee4348cfac88b1a8bd
- SHA512 0a960f5d1507064ac02ebc478abe665d530b920e0adc0f5db23184e18073031d2e5bfe7287909bc9ecb752ce7614e7e19605eef2fc84ce8f7d1f142c884f88a0
- SSDEEP 12288:7jZGTE1zkAiqC6tKsOMNozQqO216P0unlbACUtL4SP:7jcY1zknVnEw80unlEsSP
- TLSH T13DC413527FE1C8F6EEC31E3198AE6F129975F5584B24A5F39302041E7D2A1D30E3A2D9
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Drops file in Drivers directory 3 IoCs
description ioc Process File created C:\Windows\system32\DRIVERS\SET4735.tmp rundll32.exe File opened for modification C:\Windows\system32\DRIVERS\imdisk.sys rundll32.exe File opened for modification C:\Windows\system32\DRIVERS\SET4735.tmp rundll32.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\GrpConv = "grpconv -o" rundll32.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-540052884-2969440504-464782435-1000\Control Panel\International\Geo\Nation imdiskinst.exe - Drops file in System32 directory 18 IoCs
description ioc Process File opened for modification C:\Windows\system32\imdisk.cpl rundll32.exe File opened for modification C:\Windows\system32\SET4767.tmp rundll32.exe File created C:\Windows\system32\SET4767.tmp rundll32.exe File opened for modification C:\Windows\system32\imdsksvc.exe rundll32.exe File opened for modification C:\Windows\SysWOW64\imdisk.cpl rundll32.exe File created C:\Windows\system32\SET4746.tmp rundll32.exe File opened for modification C:\Windows\system32\imdisk.exe rundll32.exe File opened for modification C:\Windows\system32\SET4747.tmp rundll32.exe File created C:\Windows\system32\SET4747.tmp rundll32.exe File created C:\Windows\system32\SET4768.tmp rundll32.exe File opened for modification C:\Windows\system32\SET4746.tmp rundll32.exe File opened for modification C:\Windows\system32\SET4768.tmp rundll32.exe File created C:\Windows\SysWOW64\SET4799.tmp rundll32.exe File opened for modification C:\Windows\SysWOW64\imdisk.exe rundll32.exe File opened for modification C:\Windows\system32\uninstall_imdisk.cmd rundll32.exe File opened for modification C:\Windows\SysWOW64\SET4799.tmp rundll32.exe File opened for modification C:\Windows\SysWOW64\SET47AA.tmp rundll32.exe File created C:\Windows\SysWOW64\SET47AA.tmp rundll32.exe - Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\INF\SET4779.tmp rundll32.exe File created C:\Windows\INF\SET4779.tmp rundll32.exe File opened for modification C:\Windows\INF\imdisk.inf rundll32.exe - Executes dropped EXE 4 IoCs
pid Process 2360 runwaitw.exe 4984 imdsksvc.exe 4452 imdsksvc.exe 4968 msgboxw.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 4672 cmd.exe - System Location Discovery: System Language Discovery 1 TTPs 3 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 imdiskinst.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language runwaitw.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msgboxw.exe - Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 runonce.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz runonce.exe - Kills process with taskkill 1 IoCs
pid Process 2672 taskkill.exe - Modifies registry class 12 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell\ImDiskSaveImage\ = "Save disk contents as image file" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell\ImDiskSaveImage\command\ = "rundll32.exe imdisk.cpl,RunDLL_SaveImageFile %L" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\*\shell\ImDiskMountFile\ = "Mount as ImDisk Virtual Disk" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\*\shell\ImDiskMountFile\command rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell\ImDiskUnmount rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell\ImDiskUnmount\command rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell\ImDiskSaveImage rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell\ImDiskSaveImage\command rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\*\shell\ImDiskMountFile rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\*\shell\ImDiskMountFile\command\ = "rundll32.exe imdisk.cpl,RunDLL_MountFile %L" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell\ImDiskUnmount\ = "Unmount ImDisk Virtual Disk" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Drive\shell\ImDiskUnmount\command\ = "rundll32.exe imdisk.cpl,RunDLL_RemoveDevice %L" rundll32.exe - Runs net.exe
- Suspicious behavior: LoadsDriver 1 IoCs
pid Process 660 Process not Found - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2672 taskkill.exe - Suspicious use of WriteProcessMemory 19 IoCs
description pid Process procid_target PID 8 wrote to memory of 2360 8 imdiskinst.exe 85 PID 2360 wrote to memory of 4672 2360 runwaitw.exe 87 PID 4672 wrote to memory of 3380 4672 cmd.exe 89 PID 3380 wrote to memory of 3372 3380 net.exe 90 PID 4672 wrote to memory of 4516 4672 cmd.exe 91 PID 4516 wrote to memory of 912 4516 net.exe 92 PID 4672 wrote to memory of 1504 4672 cmd.exe 93 PID 1504 wrote to memory of 4652 1504 net.exe 94 PID 4672 wrote to memory of 2672 4672 cmd.exe 95 PID 4672 wrote to memory of 5048 4672 cmd.exe 97 PID 5048 wrote to memory of 464 5048 rundll32.exe 98 PID 464 wrote to memory of 1448 464 runonce.exe 99 PID 4672 wrote to memory of 4708 4672 cmd.exe 106 PID 4708 wrote to memory of 4556 4708 net.exe 107 PID 4672 wrote to memory of 2688 4672 cmd.exe 109 PID 2688 wrote to memory of 1748 2688 net.exe 110 PID 4672 wrote to memory of 2228 4672 cmd.exe 111 PID 2228 wrote to memory of 892 2228 net.exe 112 PID 4672 wrote to memory of 4968 4672 cmd.exe 113
Processes
-
C:\Users\Admin\AppData\Local\Temp\imdiskinst.exe"C:\Users\Admin\AppData\Local\Temp\imdiskinst.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:8 -
C:\Users\Admin\AppData\Local\Temp\7zS8002A438\runwaitw.exe"C:\Users\Admin\AppData\Local\Temp\7zS8002A438\runwaitw.exe" /64 /hide .\install.cmd2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2360 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c .\install.cmd3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:4672 -
C:\Windows\system32\net.exe"C:\Windows\system32\net.exe" stop imdsksvc4⤵
- Suspicious use of WriteProcessMemory
PID:3380 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 stop imdsksvc5⤵PID:3372
-
-
-
C:\Windows\system32\net.exe"C:\Windows\system32\net.exe" stop awealloc4⤵
- Suspicious use of WriteProcessMemory
PID:4516 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 stop awealloc5⤵PID:912
-
-
-
C:\Windows\system32\net.exe"C:\Windows\system32\net.exe" stop imdisk4⤵
- Suspicious use of WriteProcessMemory
PID:1504 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 stop imdisk5⤵PID:4652
-
-
-
C:\Windows\system32\taskkill.exe"C:\Windows\system32\taskkill.exe" /F /IM imdsksvc.exe4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2672
-
-
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" setupapi.dll,InstallHinfSection DefaultInstall 132 .\imdisk.inf4⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:5048 -
C:\Windows\system32\runonce.exe"C:\Windows\system32\runonce.exe" -r5⤵
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:464 -
C:\Windows\System32\grpconv.exe"C:\Windows\System32\grpconv.exe" -o6⤵PID:1448
-
-
-
-
C:\Windows\system32\net.exenet start imdsksvc4⤵
- Suspicious use of WriteProcessMemory
PID:4708 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 start imdsksvc5⤵PID:4556
-
-
-
C:\Windows\system32\net.exenet start awealloc4⤵
- Suspicious use of WriteProcessMemory
PID:2688 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 start awealloc5⤵PID:1748
-
-
-
C:\Windows\system32\net.exenet start imdisk4⤵
- Suspicious use of WriteProcessMemory
PID:2228 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 start imdisk5⤵PID:892
-
-
-
C:\Users\Admin\AppData\Local\Temp\7zS8002A438\msgboxw.exe.\msgboxw.exe "Setup finished, but drivers or services could not start. Please try to reboot the computer and then try to run the setup package again." 16 "ImDisk Virtual Disk Driver setup"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4968
-
-
-
-
C:\Windows\system32\imdsksvc.exeC:\Windows\system32\imdsksvc.exe1⤵
- Executes dropped EXE
PID:4984
-
C:\Windows\system32\grpconv.exegrpconv -o1⤵PID:1056
-
C:\Windows\system32\imdsksvc.exeC:\Windows\system32\imdsksvc.exe1⤵
- Executes dropped EXE
PID:4452
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\7ZS800~1\cli\i386\imdisk.exe
- Size 54KB
- SHA256 2988f78ae5643c5c536171c09dba77b5dede8573cbd49e3b4e7f220062301965
- MD5 f964156572d4b92255bdb4fe39a18077
- SHA1 99d65ef4926ec41fbe5d7a504a2c24902506b16b
- SHA512 a4ff5f32e5c490a8547b8094ddb702e72db01ab20a03c73ac431c221893bc6db2860eddca0cd9d30eb24cf1a80b8a830bc13c06f6323944eb3ad917803a20296
- SSDEEP 768:N0YelPtU4295xTxKanxo8Wmvn8cB+0+OtJ53cZZlfe9z7v:Wdm5nKanS8Wmvn8cM0h5M4z7v
- TLSH T184432B0B9744823FF09301712B79A396693CA56F4724D3CF309CA5A92F117E8E77636A
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\7ZS800~1\cpl\amd64\imdisk.cpl
- Size 126KB
- SHA256 728cfaf2e2ba469cd4c7129cf7b343513f0ac67af68202d41fea287995b94988
- MD5 e7f45dffb1259548a5e46aa2996984fb
- SHA1 4b522338b876e31351813a07e8b1ded0d941945d
- SHA512 baabb02edb59bf0d2944dd53e34e2a3a8687e87947aa7f924d14dbc03db0ee6b028771273a8fcb997930103cd8803544afd270c2a72a43547767de326c5ee23e
- SSDEEP 3072:UGhFpCUByVIXsBYDxHRybpOhfkCi2Dd0KjkkZtt9EtttGoJI5:UUYVI8BYtHUUhcCi2DjokZtt9Ettt05
- TLSH T17DC3D841A3E84198E5B6EE7056F54636AAB1BC405B35D7CF01A0BE0E3E71EC18D3972B
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\7zS8002A438\imdisk.inf
- Size 6KB
- SHA256 92fafa5a8d9b42c3752c3f151e1591253116f55f4a177a5df18aa9d4d7f7cbeb
- MD5 f179ac69515b4dd749ff82989f4f8163
- SHA1 c4b42af5bc3fcf403102af435327288a6ac7a456
- SHA512 af5d9f1b59703447b202cfdc719e3f489a5d9984d305d48ead0b3e6da5f7aed9abdcecb0c09572ed2a779fb972e75c6b66326f5f24e18670020cf8cebaa5951a
- SSDEEP 192:wZin6UdZPZh0MfvzqSOCRabIDoZUkiHE/db1tdbN:qT2vitDtN
- TLSH T1F5D1CC4ACD074E6FBBA37A04A583AAC376102C085A1EF20C7DD6D1736C9B4FDC9155AB
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\7zS8002A438\install.cmd
- Size 2KB
- SHA256 ac15c08cd625cbb1005a0de77cb74335c6bc565e546bdd8b02e4fe6f63cfc59c
- MD5 9789c247a3ce673250034fd49635aa46
- SHA1 a08432ebdb3e7a976d526d56df3e4c5c8551c4ad
- SHA512 9828ae719af86b5fc08736a6ee8bdb3c8e65e91b3c6c1ed5dc0b9229487c51efe88a60eb6082c15eaa7db86aab53bf46ded1ade001bc542b146f2fb3a9aaa5d0
- TLSH T1D5513F9FE80B8D1EF9F80FB9B4360347A453C025806CD6607CB098B3EA594AFD53A562
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\7zS8002A438\msgboxw.exe
- Size 2KB
- SHA256 7a18fba9c2f3ce58d643ab6d75e41407224f3ab8df24a8f1e11235c0a1278305
- MD5 ce46f43ff9bd3129a4df6241ac29adaa
- SHA1 031cd2bfbaa84ceb82ad1faa859dad33a02e4e9c
- SHA512 701f57222035a38bbb8cc9915abc982d11e65a02eb98ecc42fe6456cb870c86ec873e8c598ca5bb640c5c30f3722460efd44f28df7d994ea914b8dadef4c944b
- TLSH T1B441DC0B46F04D73C0DC1B7311D7244824FF8B142B6281CA4F31291390209BB096DA81
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\7zS8002A438\runwaitw.exe
- Size 3KB
- SHA256 5d00d7e5c28fb950a469ebce17772a84296d9c35f8acdac0d7c3768ef05b3090
- MD5 27b963c1a388f815d6439049b740e362
- SHA1 7917c248446b139f341dcd35319f107716dc92ce
- SHA512 0d181d1b805ed8e89e19f6c42ff6a04cf052ec268809a3e45ea5ed6c52d96ed74d5e450c5433d2dbec155a516b7019daf1d7039142bd52b67ebaf4e21c02419e
- TLSH T15871544253BA5642F4BF2BBC28BB1018E5B678A4A735C0FEC675604D94F1AB19838733
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\SysWOW64\imdisk.cpl
- Size 114KB
- SHA256 631c1528807574ce20d8c890dd19bf92121cfc5945dec71186eea764e22682e5
- MD5 91e7c908af9ccb42e1abb638d042fa5d
- SHA1 5f0c5f08ed6992e4879f0a00f26d7c0aaeedc787
- SHA512 c93657ab2b75ba912ad4338ff912897f98f4b36a15bb178ce228bed5202e1c511ea83a28cd8523c0ddc1de0aac9b5c684d617c87af7beb8de52940de69ede447
- SSDEEP 1536:845sUoCleyE1hPR9fxLXTdUtwMtn1pK1DNDjc0wkkZtt9gCktttpOFLoTsx4EBJu:r5sUd8Nvd6Nt1IDNDI0wkkZtt9EtttnF
- TLSH T180B30701D6E88528E5F27E70A9B462397D79BC916B34D6CF01903C8E3D71EC1A9B076B
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\System32\drivers\imdisk.sys
- Size 52KB
- SHA256 72873d35ee3a9d9ef1311bbb6fdefd2dfea47b4752a6f1904bbdc6dc51afd820
- MD5 9c2b6ecb0b9b075b476eef9a9a464364
- SHA1 7ca1470c6f186135bc6567f3ef3012fdf3822a8b
- SHA512 f5257aee81780ecb3771a5dd3ed3a1a061e1dc2eba8bfa6ea2e3ba6a5f5cdf4ed61086020d88ffa077f6409550dda0201477d75bf46638de85f00f2d99fe573e
- SSDEEP 768:fLgO98OwPyn2vrdCWAOsezxT311SVfW8XNsqaLqotq7KF7f3m9z:P8OZGCWqeF7ieM6NqOF7fCz
- TLSH T19D337C92D2E854C9E59AC1B1C3F9A7E3EB78B80517206ACF4E90C6151E23FD0DA3D365
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\System32\imdisk.exe
- Size 54KB
- SHA256 3a6a94c98a4b87e59a136052c50da070c99706db3bcd54ef5b148784b21f75dd
- MD5 5bf7d980cacc7be9384bb766bf32b706
- SHA1 2a29c762b3a125934b4ce7250e4e7cb70ff67237
- SHA512 b34134d0d945639dcfd918846e912911f0e399b8fc2a5db59e50e19b243a391d63b78c0d18ce68dea29f69008bb2a106b03cacfaf28e14cb4181a3c13dc21ac2
- SSDEEP 768:B0YelPtU42955RstnSgoJFQyKfnmUvrYcHj4LF3ndX9zeq:idm5HiofQNQvFzzeq
- TLSH T121434B0B9790013FE1C345B16EE98392AA72F45F5724528F305C92643F2BBE8D27B75A
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\System32\imdsksvc.exe
- Size 23KB
- SHA256 2f482b3de5e429fe5952151d25d5ef3f7dc47b65344817cc158d1929e2d19cd6
- MD5 d6bf18a5daeb07e36da1bf3f39abd248
- SHA1 a9f52b28afeb8176b0d21b2f4326f7bd37069b19
- SHA512 c77f1e093a50dfaf42198089f3510fd9c46afd17cef8842ee17a0783f4f3e40f60ad37db25e496cb1ab97e1df1f952ac03e3fbf2502717069c8ee7a4ad582184
- SSDEEP 384:+kdnco2uEaCMUvxK9mC/WxWP3h38ZjR9z3q:+k53uarU5jRxy3q9za
- TLSH T184B24D924A5C80C1D66BECB085EACA536C7933929B1396DF0375D9081E133D5FB3D729
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\System32\uninstall_imdisk.cmd
- Size 1KB
- SHA256 7704e4df8d8e354f59bbef1fe4b5df88806659b0715b2b71be6f19d45af0750f
- MD5 b3ff69e1c518f0d895d01dfa312ea17c
- SHA1 89ad932af197f790689e0c41c7ea2c61ed549a9b
- SHA512 236122cd554313125bd69475f33b45fb3819e7932cb4d7c1f1dc9713d50e0270aba7684cda0c91febd86654da259f780f8f424bbc8ce2e40de6b34674f151023
- TLSH T18A31BD4FFC074C17FCB81BE5B91A4257B013C025425CE651BEE1A8B3E66658EE53A932
- MD5 SHA1 SHA512 TLSH