Analysis
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max time kernel
68s -
max time network
69s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
18-02-2025 14:20
Static task
static1
Behavioral task
behavioral1
Sample
d.msi
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
d.msi
Resource
win10v2004-20250217-en
Errors
General
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Target
d.msi
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Size
2.9MB
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MD5
ae5b94abf028388af1454ed76806cc6f
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SHA1
ef013c7eec6fc6c14ccd414b5eb87abf1476566a
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SHA256
f286d2b89eaebb2e1e6e23a44bc92dae7c058348286810549f4c7514c9ea61ad
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SHA512
b88c3c160b68b0bdc03780a6848001aef7baa5532b815071eb4f26ff1caa87f71b2401b0c507db5389d14517310bae758aaa17f6fe7aa508f2de38cdbcac1fe2
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SSDEEP
49152:TL51ahTWxFOlm43he+4Xkt1i1XkIZ9fm5urK7olHgnIxQQ6brit:p8h8ME4xr461ckZPoxgnsSa
Malware Config
Extracted
remcos
v2
185.157.162.126:1995
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
qsdazeazd-EL00KX
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Detects HijackLoader (aka IDAT Loader) 1 IoCs
resource yara_rule behavioral2/files/0x000b000000023c5b-31.dat family_hijackloader -
HijackLoader
HijackLoader is a multistage loader first seen in 2023.
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Hijackloader family
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Remcos family
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2593460650-190333679-3676257533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EHttpSrv = "\"C:\\Users\\Admin\\AppData\\Roaming\\IXXinstall\\EHttpSrv.exe\"" msiexec.exe -
Enumerates connected drives 3 TTPs 46 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\T: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\J: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\N: msiexec.exe File opened (read-only) \??\O: msiexec.exe File opened (read-only) \??\W: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\B: msiexec.exe File opened (read-only) \??\Q: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\Y: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\G: msiexec.exe File opened (read-only) \??\K: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\V: msiexec.exe File opened (read-only) \??\L: msiexec.exe File opened (read-only) \??\P: msiexec.exe File opened (read-only) \??\Z: msiexec.exe File opened (read-only) \??\X: msiexec.exe File opened (read-only) \??\H: msiexec.exe File opened (read-only) \??\R: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\E: msiexec.exe File opened (read-only) \??\S: msiexec.exe File opened (read-only) \??\A: msiexec.exe File opened (read-only) \??\U: msiexec.exe File opened (read-only) \??\I: msiexec.exe File opened (read-only) \??\M: msiexec.exe File opened (read-only) \??\R: msiexec.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3804 set thread context of 4536 3804 EHttpSrv.exe 91 PID 4536 set thread context of 3992 4536 cmd.exe 94 -
Drops file in Windows directory 8 IoCs
description ioc Process File opened for modification C:\Windows\Installer\e576eb8.msi msiexec.exe File opened for modification C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.log msiexec.exe File opened for modification C:\Windows\Installer\ msiexec.exe File created C:\Windows\Installer\inprogressinstallinfo.ipi msiexec.exe File created C:\Windows\Installer\SourceHash{B1C5FCCC-2DDA-41F7-8B6A-192BB64891A0} msiexec.exe File opened for modification C:\Windows\Installer\MSI6F54.tmp msiexec.exe File created C:\Windows\Installer\e576eba.msi msiexec.exe File created C:\Windows\Installer\e576eb8.msi msiexec.exe -
Executes dropped EXE 1 IoCs
pid Process 3804 EHttpSrv.exe -
Loads dropped DLL 3 IoCs
pid Process 3804 EHttpSrv.exe 3804 EHttpSrv.exe 3992 EHttpSrv.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
pid Process 1732 msiexec.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 EHttpSrv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language EHttpSrv.exe -
Modifies data under HKEY_USERS 15 IoCs
description ioc Process Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "160" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent LogonUI.exe Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 LogonUI.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History LogonUI.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" LogonUI.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 1716 msiexec.exe 1716 msiexec.exe 3804 EHttpSrv.exe 4536 cmd.exe 4536 cmd.exe -
Suspicious behavior: MapViewOfSection 3 IoCs
pid Process 3804 EHttpSrv.exe 4536 cmd.exe 4536 cmd.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 1732 msiexec.exe Token: SeIncreaseQuotaPrivilege 1732 msiexec.exe Token: SeSecurityPrivilege 1716 msiexec.exe Token: SeCreateTokenPrivilege 1732 msiexec.exe Token: SeAssignPrimaryTokenPrivilege 1732 msiexec.exe Token: SeLockMemoryPrivilege 1732 msiexec.exe Token: SeIncreaseQuotaPrivilege 1732 msiexec.exe Token: SeMachineAccountPrivilege 1732 msiexec.exe Token: SeTcbPrivilege 1732 msiexec.exe Token: SeSecurityPrivilege 1732 msiexec.exe Token: SeTakeOwnershipPrivilege 1732 msiexec.exe Token: SeLoadDriverPrivilege 1732 msiexec.exe Token: SeSystemProfilePrivilege 1732 msiexec.exe Token: SeSystemtimePrivilege 1732 msiexec.exe Token: SeProfSingleProcessPrivilege 1732 msiexec.exe Token: SeIncBasePriorityPrivilege 1732 msiexec.exe Token: SeCreatePagefilePrivilege 1732 msiexec.exe Token: SeCreatePermanentPrivilege 1732 msiexec.exe Token: SeBackupPrivilege 1732 msiexec.exe Token: SeRestorePrivilege 1732 msiexec.exe Token: SeShutdownPrivilege 1732 msiexec.exe Token: SeDebugPrivilege 1732 msiexec.exe Token: SeAuditPrivilege 1732 msiexec.exe Token: SeSystemEnvironmentPrivilege 1732 msiexec.exe Token: SeChangeNotifyPrivilege 1732 msiexec.exe Token: SeRemoteShutdownPrivilege 1732 msiexec.exe Token: SeUndockPrivilege 1732 msiexec.exe Token: SeSyncAgentPrivilege 1732 msiexec.exe Token: SeEnableDelegationPrivilege 1732 msiexec.exe Token: SeManageVolumePrivilege 1732 msiexec.exe Token: SeImpersonatePrivilege 1732 msiexec.exe Token: SeCreateGlobalPrivilege 1732 msiexec.exe Token: SeBackupPrivilege 1056 vssvc.exe Token: SeRestorePrivilege 1056 vssvc.exe Token: SeAuditPrivilege 1056 vssvc.exe Token: SeRestorePrivilege 1716 msiexec.exe Token: SeTakeOwnershipPrivilege 1716 msiexec.exe Token: SeRestorePrivilege 1716 msiexec.exe Token: SeTakeOwnershipPrivilege 1716 msiexec.exe Token: SeRestorePrivilege 1716 msiexec.exe Token: SeTakeOwnershipPrivilege 1716 msiexec.exe Token: SeRestorePrivilege 1716 msiexec.exe Token: SeTakeOwnershipPrivilege 1716 msiexec.exe Token: SeRestorePrivilege 1716 msiexec.exe Token: SeTakeOwnershipPrivilege 1716 msiexec.exe Token: SeRestorePrivilege 1716 msiexec.exe Token: SeTakeOwnershipPrivilege 1716 msiexec.exe Token: SeRestorePrivilege 1716 msiexec.exe Token: SeTakeOwnershipPrivilege 1716 msiexec.exe Token: SeRestorePrivilege 1716 msiexec.exe Token: SeTakeOwnershipPrivilege 1716 msiexec.exe Token: SeRestorePrivilege 1716 msiexec.exe Token: SeTakeOwnershipPrivilege 1716 msiexec.exe Token: SeRestorePrivilege 1716 msiexec.exe Token: SeTakeOwnershipPrivilege 1716 msiexec.exe Token: SeRestorePrivilege 1716 msiexec.exe Token: SeTakeOwnershipPrivilege 1716 msiexec.exe Token: SeRestorePrivilege 1716 msiexec.exe Token: SeTakeOwnershipPrivilege 1716 msiexec.exe Token: SeRestorePrivilege 1716 msiexec.exe Token: SeTakeOwnershipPrivilege 1716 msiexec.exe Token: SeRestorePrivilege 1716 msiexec.exe Token: SeTakeOwnershipPrivilege 1716 msiexec.exe Token: SeRestorePrivilege 1716 msiexec.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1732 msiexec.exe 1732 msiexec.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1520 LogonUI.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1716 wrote to memory of 3804 1716 msiexec.exe 90 PID 1716 wrote to memory of 3804 1716 msiexec.exe 90 PID 1716 wrote to memory of 3804 1716 msiexec.exe 90 PID 3804 wrote to memory of 4536 3804 EHttpSrv.exe 91 PID 3804 wrote to memory of 4536 3804 EHttpSrv.exe 91 PID 3804 wrote to memory of 4536 3804 EHttpSrv.exe 91 PID 3804 wrote to memory of 4536 3804 EHttpSrv.exe 91 PID 4536 wrote to memory of 3992 4536 cmd.exe 94 PID 4536 wrote to memory of 3992 4536 cmd.exe 94 PID 4536 wrote to memory of 3992 4536 cmd.exe 94 PID 4536 wrote to memory of 3992 4536 cmd.exe 94 PID 4536 wrote to memory of 3992 4536 cmd.exe 94 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Windows\system32\msiexec.exemsiexec.exe /I C:\Users\Admin\AppData\Local\Temp\d.msi1⤵
- Enumerates connected drives
- Event Triggered Execution: Installer Packages
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1732
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C:\Windows\system32\msiexec.exeC:\Windows\system32\msiexec.exe /V1⤵
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Users\Admin\AppData\Roaming\IXXinstall\EHttpSrv.exe"C:\Users\Admin\AppData\Roaming\IXXinstall\EHttpSrv.exe"2⤵
- Suspicious use of SetThreadContext
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3804 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\SysWOW64\cmd.exe3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4536 -
C:\Users\Admin\AppData\Roaming\IXXinstall\EHttpSrv.exeC:\Users\Admin\AppData\Roaming\IXXinstall\EHttpSrv.exe4⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:3992
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1056
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x4 /state0:0xa396d055 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:1520
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Installer Packages
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Installer Packages
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
10KB
MD5ccf2ed6830bf33e5048bb41f5e3f9d8c
SHA1164c8f00b70034a23c4c9789fd6ce0a3ef6639b2
SHA256075a283409ca914c1c7f81adbd15f0205ea0431218616629aa75b487cc215687
SHA512f8f0d3721e484f917a9259e3fe0eefb250ad6dcfa9aa2070b5d0a67eef8927e34d1d6c949086167bccd4a8b600f77b5a62b672f03337f5e9cf6658a2513adeca
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Filesize
1.0MB
MD50858be20db3921fa6bceb254569d174c
SHA1bd690b7473ab4389d3fcbf7cf6348e71a6db7ff9
SHA256881db46c667da54a1ee0132133df58ab8cc996704461ec7a0ad08159d14b0b20
SHA51245e342861e6eaebd33d158b914ac0bea319a71443ddbea1a44c9ac204d27096fbf5d11f9995dc477fb6c8d216c5c2a698d803ae3a74163f97f53347db0ae1b25
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Filesize
20KB
MD59329ba45c8b97485926a171e34c2abb8
SHA120118bc0432b4e8b3660a4b038b20ca28f721e5c
SHA256effa6fcb8759375b4089ccf61202a5c63243f4102872e64e3eb0a1bdc2727659
SHA5120af06b5495142ba0632a46be0778a7bd3d507e9848b3159436aa504536919abbcacd8b740ef4b591296e86604b49e0642fee2c273a45e44b41a80f91a1d52acc
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Filesize
1.0MB
MD5686b224b4987c22b153fbb545fee9657
SHA1684ee9f018fbb0bbf6ffa590f3782ba49d5d096c
SHA256a2ac851f35066c2f13a7452b7a9a3fee05bfb42907ae77a6b85b212a2227fc36
SHA51244d65db91ceea351d2b6217eaa27358dbc2ed27c9a83d226b59aecb336a9252b60aec5ce5e646706a2af5631d5ee0f721231ec751e97e47bbbc32d5f40908875
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Filesize
877KB
MD55124236fd955464317fbb1f344a1d2f2
SHA1fe3a91e252f1dc3c3b4980ade7157369ea6f5097
SHA256ed1389002cdf96c9b54de35b6e972166ee3296d628943fd594a383e674c5cba6
SHA5122b2ac23244b16f936ef9a4049586f58c809fcc4391a56390cc5db2e8d96140001e0b977680ed1d8b0ab9c410e865a880209e22add8d42e563dc40bc91236b252
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Filesize
1.9MB
MD5fe47e255c704b20cb20c8ed93ec94d47
SHA1ed7d26624b3cfaa72cf7d3bc59d26845fb84247a
SHA256b0d665cb466e10ef90e1d79a39cb655ebe785d0cefc074f7a22d04936b681879
SHA51255813a4b755773f98991b47294fed03b23d5bee9af3ef98727b7345882fe0d9976546f46847fbc30119e7c62ce7ee8ae21f54065922041cf8d42364e607bc1c0
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Filesize
2.9MB
MD5ae5b94abf028388af1454ed76806cc6f
SHA1ef013c7eec6fc6c14ccd414b5eb87abf1476566a
SHA256f286d2b89eaebb2e1e6e23a44bc92dae7c058348286810549f4c7514c9ea61ad
SHA512b88c3c160b68b0bdc03780a6848001aef7baa5532b815071eb4f26ff1caa87f71b2401b0c507db5389d14517310bae758aaa17f6fe7aa508f2de38cdbcac1fe2