Analysis
- max time kernel
178s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
05/08/2026, 00:20
Static task
static1
Behavioral task
behavioral1
Sample
r843.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
r843.exe
Resource
win11ltsc2024-20260709-en
General
- Target r843.exe
- Size 422KB
- Sample260805-am5lystgrd
- SHA256 f68ba32766e087f5a6855fa7da9feea2968280a019aec31d7d173adcd4b848ca
- MD5 507750e3dff1a6c533d4d083e7332b6e
- SHA1 f21426f05cc9b903a2a459f36d6261b1a9e32732
- SHA512 d08aebc90fc19eae180004f191f093672a5e309996c32e3f75f2b879734eae8a2d6f470d56c6abeacbc963888d5876db33715917d19aa6067a8d529bcb53ba70
- SSDEEP 6144:Rk9VrlqDGmuyPTwPgtpMmWcQqeE892rPu9pwFS3bYjwpYfjeY3La6a:CVrlqDGDy7TtXWcv8Cu9x3M8pYre4LL
- TLSH T17A944804A659B4E8D06644F784D1771DAA36BE0472C05EDA3ACFB2716E327E0EDDBE10
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
remus_stealer
-
http://slyfogx.shop:5776
-
http://onesdto.shop:2535
-
http://azurhay.shop:8539
Signatures
- Family: Remus
Remus is a stealer written in C++.
- Creates a file in the Startup directory 1 TTPs 2 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\r843.exe r843.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\r843.exe r843.exe - Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Registers new Windows logon scripts automatically executed at logon. 1 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Environment\UserInitMprLogonScript = "C:\\Users\\Admin\\AppData\\Local\\Temp\\r843.exe" r843.exe Set value (str) \REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Environment\UserInitMprLogonScript = "C:\\Users\\Admin\\AppData\\Local\\Temp\\r843.exe" r843.exe - Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Windows\CurrentVersion\Run\SecurityHealthService = "C:\\Users\\Admin\\AppData\\Local\\Temp\\r843.exe" r843.exe Set value (str) \REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Windows\CurrentVersion\Run\SecurityHealthService = "C:\\Users\\Admin\\AppData\\Local\\Temp\\r843.exe" r843.exe - Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4584 schtasks.exe 5932 schtasks.exe 5580 schtasks.exe 4556 schtasks.exe - Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 1872 r843.exe 1872 r843.exe 5340 r843.exe 5340 r843.exe 1872 r843.exe 1872 r843.exe 1872 r843.exe 1872 r843.exe 1872 r843.exe 1872 r843.exe 5340 r843.exe 5340 r843.exe 5340 r843.exe 5340 r843.exe 5340 r843.exe 5340 r843.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1872 wrote to memory of 5580 1872 r843.exe 90 PID 1872 wrote to memory of 4556 1872 r843.exe 92 PID 5340 wrote to memory of 4584 5340 r843.exe 97 PID 5340 wrote to memory of 5932 5340 r843.exe 99 - 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
-
C:\Users\Admin\AppData\Local\Temp\r843.exe"C:\Users\Admin\AppData\Local\Temp\r843.exe"1⤵
- Creates a file in the Startup directory
- Registers new Windows logon scripts automatically executed at logon.
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1872 -
C:\Windows\SYSTEM32\schtasks.exeschtasks.exe /create /tn "SecurityHealthService" /xml "C:\Users\Admin\AppData\Local\Temp\~st0E596491.xml" /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:5580
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks.exe /create /tn "WindowsSecurityHealth" /xml "C:\Users\Admin\AppData\Local\Temp\~st0E59636E.xml" /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:4556
-
-
C:\Users\Admin\AppData\Local\Temp\r843.exeC:\Users\Admin\AppData\Local\Temp\r843.exe1⤵
- Creates a file in the Startup directory
- Registers new Windows logon scripts automatically executed at logon.
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5340 -
C:\Windows\SYSTEM32\schtasks.exeschtasks.exe /create /tn "SecurityHealthService" /xml "C:\Users\Admin\AppData\Local\Temp\~st0E596488.xml" /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:4584
-
-
C:\Windows\SYSTEM32\schtasks.exeschtasks.exe /create /tn "WindowsSecurityHealth" /xml "C:\Users\Admin\AppData\Local\Temp\~st0E59646E.xml" /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:5932
-
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Boot or Logon Initialization Scripts
1Logon Script (Windows)
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Boot or Logon Initialization Scripts
1Logon Script (Windows)
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\~st0E59636E.xml
- Size 1KB
- SHA256 e3f73fd5e942472bea4544f5c8a0bb72bec019ff2687d1902b76909634bdf81f
- MD5 c4e47c1072e2d65e3c2e55f775d45c65
- SHA1 3810c16e55f6ad0f8c4ce08d2c4bfcdffe458273
- SHA512 ac9418c2df824aea77f3397cb541e0c2bcf3ebb3cea6cf34a2d929f0a354a1e89bd6a08beca1b941b083c088aeec7972d5b5ef581746f7e8d7ab2947effdcbf6
- TLSH T1E0317147ABFD160EF1F3AB5CBEBA645199B6FC955D24D86D0070090C0531931C5B1B37
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\~st0E59646E.xml
- Size 1KB
- SHA256 359cfd6560a2136a41a03fbc10227ed454cbd266c7d74bc450da3c94cd0d13f1
- MD5 03602da1b72f1c11eba0d359e2fde276
- SHA1 eb29b585877cdae7bdd46e7f4e5813bfa0a73b51
- SHA512 ddaff4462b7c83b0029062ae6d8ff4b421f46ff2366ac0332395a2b20d262fc9357739451d6b797b0468d30323bf62cd6f6b48923ab4943e8a958ec28a3f6092
- TLSH T15A317147ABFD160EF1F3AB5CBEBA645199B6FC955D24D46D0070090C0531931C5B1B37
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\~st0E596491.xml
- Size 1KB
- SHA256 0d1ae7a16a58c5ca8f1612c3a9ab188255ce548fea801f98d2ba4f32df56f38f
- MD5 015f2c88f0f072e986aec24192d8c767
- SHA1 e71aaa72e4eb2d12e8bf1e5adec6d6304b46da59
- SHA512 8b06cff3bfd2da11a9df387f96e375c8ab3a37bb76707bbf2311e7fefa97be38ad26bdeff73185583991a124654b001bac43b529c4fd0c7a6a076dd14205c7f6
- TLSH T130218E43ABFE220DF1F3AF9CAABA64119AB6FC654D65D46D0070090C0535D71C9B1B3B
- MD5 SHA1 SHA512 TLSH