Analysis
-
max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
20-07-2023 17:31
Behavioral task
behavioral1
Sample
25ce3e5e7542494839e7af1037d01b75.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
25ce3e5e7542494839e7af1037d01b75.exe
Resource
win10v2004-20230703-en
General
-
Target
25ce3e5e7542494839e7af1037d01b75.exe
-
Size
37KB
-
MD5
25ce3e5e7542494839e7af1037d01b75
-
SHA1
a0a429037733f0d952d10fe2b17e86bfc91fad8e
-
SHA256
e5540cffba128c0d852016d11e6e154445f83b146aee17a82e9f45ac876d10de
-
SHA512
565398f500601bf5942897987414315bc4ddc0b980df24d672bfc0c2987ba7d1c4562e0cbb022bc8dce481202096d086d056987ba2b4c8fd66c262f8cbd7c0ce
-
SSDEEP
384:6IDIUiFubK7FmpE8QyEfeyfZOfnSFtrAF+rMRTyN/0L+EcoinblneHQM3epzXiNw:9d2n8LEfeygvS3rM+rMRa8NuwKt
Malware Config
Extracted
njrat
im523
lox
6.tcp.eu.ngrok.io:16154
bf3a4c0ea202ee07bb0bc0988c661a2a
-
reg_key
bf3a4c0ea202ee07bb0bc0988c661a2a
-
splitter
|'|'|
Signatures
-
Modifies Windows Firewall 1 TTPs 1 IoCs
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
25ce3e5e7542494839e7af1037d01b75.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000\Control Panel\International\Geo\Nation 25ce3e5e7542494839e7af1037d01b75.exe -
Drops startup file 2 IoCs
Processes:
svchost.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bf3a4c0ea202ee07bb0bc0988c661a2a.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bf3a4c0ea202ee07bb0bc0988c661a2a.exe svchost.exe -
Executes dropped EXE 1 IoCs
Processes:
svchost.exepid process 2420 svchost.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
svchost.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bf3a4c0ea202ee07bb0bc0988c661a2a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe\" .." svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\bf3a4c0ea202ee07bb0bc0988c661a2a = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe\" .." svchost.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
-
Drops file in System32 directory 3 IoCs
Processes:
svchost.exedescription ioc process File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{26A34D8B-8FBE-4524-A428-50FD4C8832C8}.catalogItem svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallAgent\Checkpoints\9NCBCSZSJRSB.dat svchost.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallAgent\Checkpoints\9NCBCSZSJRSB.dat svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
svchost.exedescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString svchost.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
Processes:
svchost.exedescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU svchost.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
svchost.exepid process 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe 2420 svchost.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
svchost.exepid process 2420 svchost.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
Processes:
svchost.exedescription pid process Token: SeDebugPrivilege 2420 svchost.exe Token: 33 2420 svchost.exe Token: SeIncBasePriorityPrivilege 2420 svchost.exe Token: 33 2420 svchost.exe Token: SeIncBasePriorityPrivilege 2420 svchost.exe Token: 33 2420 svchost.exe Token: SeIncBasePriorityPrivilege 2420 svchost.exe Token: 33 2420 svchost.exe Token: SeIncBasePriorityPrivilege 2420 svchost.exe Token: 33 2420 svchost.exe Token: SeIncBasePriorityPrivilege 2420 svchost.exe Token: 33 2420 svchost.exe Token: SeIncBasePriorityPrivilege 2420 svchost.exe Token: 33 2420 svchost.exe Token: SeIncBasePriorityPrivilege 2420 svchost.exe Token: 33 2420 svchost.exe Token: SeIncBasePriorityPrivilege 2420 svchost.exe Token: 33 2420 svchost.exe Token: SeIncBasePriorityPrivilege 2420 svchost.exe Token: 33 2420 svchost.exe Token: SeIncBasePriorityPrivilege 2420 svchost.exe Token: 33 2420 svchost.exe Token: SeIncBasePriorityPrivilege 2420 svchost.exe Token: 33 2420 svchost.exe Token: SeIncBasePriorityPrivilege 2420 svchost.exe Token: 33 2420 svchost.exe Token: SeIncBasePriorityPrivilege 2420 svchost.exe Token: 33 2420 svchost.exe Token: SeIncBasePriorityPrivilege 2420 svchost.exe Token: 33 2420 svchost.exe Token: SeIncBasePriorityPrivilege 2420 svchost.exe Token: 33 2420 svchost.exe Token: SeIncBasePriorityPrivilege 2420 svchost.exe Token: 33 2420 svchost.exe Token: SeIncBasePriorityPrivilege 2420 svchost.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
25ce3e5e7542494839e7af1037d01b75.exesvchost.exedescription pid process target process PID 3728 wrote to memory of 2420 3728 25ce3e5e7542494839e7af1037d01b75.exe svchost.exe PID 3728 wrote to memory of 2420 3728 25ce3e5e7542494839e7af1037d01b75.exe svchost.exe PID 3728 wrote to memory of 2420 3728 25ce3e5e7542494839e7af1037d01b75.exe svchost.exe PID 2420 wrote to memory of 3800 2420 svchost.exe netsh.exe PID 2420 wrote to memory of 3800 2420 svchost.exe netsh.exe PID 2420 wrote to memory of 3800 2420 svchost.exe netsh.exe -
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\25ce3e5e7542494839e7af1037d01b75.exe"C:\Users\Admin\AppData\Local\Temp\25ce3e5e7542494839e7af1037d01b75.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\svchost.exe"C:\Users\Admin\AppData\Local\Temp\svchost.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE3⤵
- Modifies Windows Firewall
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
Network
MITRE ATT&CK Matrix ATT&CK v13
Persistence
Create or Modify System Process
1Windows Service
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\svchost.exeFilesize
37KB
MD525ce3e5e7542494839e7af1037d01b75
SHA1a0a429037733f0d952d10fe2b17e86bfc91fad8e
SHA256e5540cffba128c0d852016d11e6e154445f83b146aee17a82e9f45ac876d10de
SHA512565398f500601bf5942897987414315bc4ddc0b980df24d672bfc0c2987ba7d1c4562e0cbb022bc8dce481202096d086d056987ba2b4c8fd66c262f8cbd7c0ce
-
C:\Users\Admin\AppData\Local\Temp\svchost.exeFilesize
37KB
MD525ce3e5e7542494839e7af1037d01b75
SHA1a0a429037733f0d952d10fe2b17e86bfc91fad8e
SHA256e5540cffba128c0d852016d11e6e154445f83b146aee17a82e9f45ac876d10de
SHA512565398f500601bf5942897987414315bc4ddc0b980df24d672bfc0c2987ba7d1c4562e0cbb022bc8dce481202096d086d056987ba2b4c8fd66c262f8cbd7c0ce
-
C:\Users\Admin\AppData\Local\Temp\svchost.exeFilesize
37KB
MD525ce3e5e7542494839e7af1037d01b75
SHA1a0a429037733f0d952d10fe2b17e86bfc91fad8e
SHA256e5540cffba128c0d852016d11e6e154445f83b146aee17a82e9f45ac876d10de
SHA512565398f500601bf5942897987414315bc4ddc0b980df24d672bfc0c2987ba7d1c4562e0cbb022bc8dce481202096d086d056987ba2b4c8fd66c262f8cbd7c0ce
-
C:\Users\Admin\AppData\Local\Temp\wsuAFD7.tmpFilesize
14KB
MD5c01eaa0bdcd7c30a42bbb35a9acbf574
SHA10aee3e1b873e41d040f1991819d0027b6cc68f54
SHA25632297224427103aa1834dba276bf5d49cd5dd6bda0291422e47ad0d0706c6d40
SHA512d26ff775ad39425933cd3df92209faa53ec5b701e65bfbcccc64ce8dd3e79f619a9bad7cc975a98a95f2006ae89e50551877fc315a3050e48d5ab89e0802e2b7
-
memory/2420-147-0x00000000754F0000-0x0000000075AA1000-memory.dmpFilesize
5.7MB
-
memory/2420-150-0x00000000754F0000-0x0000000075AA1000-memory.dmpFilesize
5.7MB
-
memory/3728-133-0x00000000754F0000-0x0000000075AA1000-memory.dmpFilesize
5.7MB
-
memory/3728-134-0x00000000754F0000-0x0000000075AA1000-memory.dmpFilesize
5.7MB
-
memory/3728-135-0x0000000000F70000-0x0000000000F80000-memory.dmpFilesize
64KB
-
memory/3728-145-0x00000000754F0000-0x0000000075AA1000-memory.dmpFilesize
5.7MB
-
memory/3728-146-0x00000000754F0000-0x0000000075AA1000-memory.dmpFilesize
5.7MB