Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20250410-en -
resource tags
arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system -
submitted
02/05/2025, 11:09
Behavioral task
behavioral1
Sample
250502-m7emgssrs4.exe
Resource
win10v2004-20250410-en
Behavioral task
behavioral2
Sample
250502-m7emgssrs4.exe
Resource
win11-20250410-en
General
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Target
250502-m7emgssrs4.exe
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Size
94KB
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MD5
9703ca1aa7b76a5cbcbc44f1e88ab0da
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SHA1
527a3bea16ca6cbd11daafa04478274878660d3f
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SHA256
beb15b54dc5b31d30e4a950db36dcc33b8fe1f29c6567c5cf9ca93bee7c17fce
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SHA512
0d8add3c5c56e9a56112f7283aee201d77d0336963dca561cc7ff041f970da410c21d2d099c4e30bded52da85093f37e681bf3d57f461c32208bd92277763e20
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SSDEEP
1536:00A1Vii3CCFVAmJOvSHyz0oiWuGTf+b6HPKmQ76xK+OMFS9hBKUEF:07XNHSz0ow8f+b6XHK+OMsOl
Malware Config
Extracted
xworm
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Install_directory
%AppData%
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install_file
svchost.exe
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pastebin_url
https://pastebin.com/raw/2Q991bze
Signatures
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Contains code to disable Windows Defender 1 IoCs
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
resource yara_rule behavioral1/memory/3200-103-0x0000000001440000-0x000000000144E000-memory.dmp disable_win_def -
Detect Xworm Payload 2 IoCs
resource yara_rule behavioral1/memory/3200-1-0x0000000000B10000-0x0000000000B2C000-memory.dmp family_xworm behavioral1/files/0x0015000000024024-60.dat family_xworm -
StormKitty
StormKitty is an open source info stealer written in C#.
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StormKitty payload 1 IoCs
resource yara_rule behavioral1/memory/3200-64-0x000000001D310000-0x000000001D430000-memory.dmp family_stormkitty -
Stormkitty family
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Xworm family
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Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 4792 powershell.exe 3360 powershell.exe 5596 powershell.exe 1876 powershell.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-1-5-21-3027557611-1484967174-339164627-1000\Control Panel\International\Geo\Nation 250502-m7emgssrs4.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk 250502-m7emgssrs4.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk 250502-m7emgssrs4.exe -
Executes dropped EXE 3 IoCs
pid Process 3744 svchost.exe 2924 svchost.exe 3544 svchost.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3027557611-1484967174-339164627-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe" 250502-m7emgssrs4.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 23 pastebin.com 24 pastebin.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1912 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 4792 powershell.exe 4792 powershell.exe 3360 powershell.exe 3360 powershell.exe 5596 powershell.exe 5596 powershell.exe 1876 powershell.exe 1876 powershell.exe 3200 250502-m7emgssrs4.exe 3200 250502-m7emgssrs4.exe -
Suspicious use of AdjustPrivilegeToken 9 IoCs
description pid Process Token: SeDebugPrivilege 3200 250502-m7emgssrs4.exe Token: SeDebugPrivilege 4792 powershell.exe Token: SeDebugPrivilege 3360 powershell.exe Token: SeDebugPrivilege 5596 powershell.exe Token: SeDebugPrivilege 1876 powershell.exe Token: SeDebugPrivilege 3744 svchost.exe Token: SeDebugPrivilege 3200 250502-m7emgssrs4.exe Token: SeDebugPrivilege 2924 svchost.exe Token: SeDebugPrivilege 3544 svchost.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3200 250502-m7emgssrs4.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3200 wrote to memory of 4792 3200 250502-m7emgssrs4.exe 92 PID 3200 wrote to memory of 4792 3200 250502-m7emgssrs4.exe 92 PID 3200 wrote to memory of 3360 3200 250502-m7emgssrs4.exe 97 PID 3200 wrote to memory of 3360 3200 250502-m7emgssrs4.exe 97 PID 3200 wrote to memory of 5596 3200 250502-m7emgssrs4.exe 100 PID 3200 wrote to memory of 5596 3200 250502-m7emgssrs4.exe 100 PID 3200 wrote to memory of 1876 3200 250502-m7emgssrs4.exe 102 PID 3200 wrote to memory of 1876 3200 250502-m7emgssrs4.exe 102 PID 3200 wrote to memory of 1912 3200 250502-m7emgssrs4.exe 104 PID 3200 wrote to memory of 1912 3200 250502-m7emgssrs4.exe 104 PID 3116 wrote to memory of 3744 3116 cmd.exe 108 PID 3116 wrote to memory of 3744 3116 cmd.exe 108 -
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:\Users\Admin\AppData\Local\Temp\250502-m7emgssrs4.exe"C:\Users\Admin\AppData\Local\Temp\250502-m7emgssrs4.exe"1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3200 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\250502-m7emgssrs4.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4792
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '250502-m7emgssrs4.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3360
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\svchost.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5596
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1876
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Scheduled Task/Job: Scheduled Task
PID:1912
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\svchost.exe1⤵
- Suspicious use of WriteProcessMemory
PID:3116 -
C:\Users\Admin\AppData\Roaming\svchost.exeC:\Users\Admin\AppData\Roaming\svchost.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3744
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C:\Users\Admin\AppData\Roaming\svchost.exeC:\Users\Admin\AppData\Roaming\svchost.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2924
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C:\Users\Admin\AppData\Roaming\svchost.exeC:\Users\Admin\AppData\Roaming\svchost.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3544
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2KB
MD5d85ba6ff808d9e5444a4b369f5bc2730
SHA131aa9d96590fff6981b315e0b391b575e4c0804a
SHA25684739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA5128c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
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Filesize
654B
MD52ff39f6c7249774be85fd60a8f9a245e
SHA1684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA256e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
SHA5121d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
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Filesize
944B
MD54f3a771041a5f0acbc6074eaa3e256fa
SHA1fdf40d5cd659f3708d88442c5140c1f463b3cb9c
SHA256cb5d3000eae0d7837ed7076c75dbd0eb445858a5861946fc960aa43fef5af17e
SHA5122f22c66a620e8939f19bbfcab94a228084c7c54eeaacd6c1bc0f8ce05ca2bc57f0ab886543faeb36fca6a4b347285fd5d1eb1d2ad128d999be8865a5cff04d73
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Filesize
944B
MD522310ad6749d8cc38284aa616efcd100
SHA1440ef4a0a53bfa7c83fe84326a1dff4326dcb515
SHA25655b1d8021c4eb4c3c0d75e3ed7a4eb30cd0123e3d69f32eeb596fe4ffec05abf
SHA5122ef08e2ee15bb86695fe0c10533014ffed76ececc6e579d299d3365fafb7627f53e32e600bb6d872b9f58aca94f8cb7e1e94cdfd14777527f7f0aa019d9c6def
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Filesize
944B
MD5ba169f4dcbbf147fe78ef0061a95e83b
SHA192a571a6eef49fff666e0f62a3545bcd1cdcda67
SHA2565ef1421e19fde4bc03cd825dd7d6c0e7863f85fd8f0aa4a4d4f8d555dc7606d1
SHA5128d2e5e552210dcda684682538bc964fdd8a8ff5b24cc2cc8af813729f0202191f98eb42d38d2355df17ae620fe401aad6ceaedaed3b112fdacd32485a3a0c07c
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
94KB
MD59703ca1aa7b76a5cbcbc44f1e88ab0da
SHA1527a3bea16ca6cbd11daafa04478274878660d3f
SHA256beb15b54dc5b31d30e4a950db36dcc33b8fe1f29c6567c5cf9ca93bee7c17fce
SHA5120d8add3c5c56e9a56112f7283aee201d77d0336963dca561cc7ff041f970da410c21d2d099c4e30bded52da85093f37e681bf3d57f461c32208bd92277763e20