Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
08/03/2024, 03:04
Behavioral task
behavioral1
Sample
b84720b3e4ca9d33262a2650c78fe387.exe
Resource
win7-20240221-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
b84720b3e4ca9d33262a2650c78fe387.exe
Resource
win10v2004-20240226-en
7 signatures
150 seconds
General
- Target b84720b3e4ca9d33262a2650c78fe387.exe
- Size 39KB
- Sample240308-dk2daseg8v
- SHA256 8425941fd2bd6ed50176e0ba1096495fe76ffda88c3ce6dc8ee875125bc803e7
- MD5 b84720b3e4ca9d33262a2650c78fe387
- SHA1 9b59c5cf923eb52b2cc453c931fb3549712878e2
- SHA512 d756499583d698f0c9b72ede62f85d0698b85cf841ea7a7c0949012342b3c81c266cf2afe5b990c03ffe51d67138cc7d7e61db4a58a78ed41543fbe97df74e29
- SSDEEP 768:+IfVl4IfR1gmzgsDL+HA2Z7wHpZ9BWTMQHXSaZdzSEp/LHxbha5K:WAT3DL+gAeZyjHXS+SkHr
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
-
resource yara_rule behavioral2/files/0x000700000001ebc7-2.dat aspack_v212_v242 - Executes dropped EXE 1 IoCs
pid Process 3064 SmS.exe - Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunServices\SmS = "C:\\Windows\\SmS.exe" b84720b3e4ca9d33262a2650c78fe387.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SmS = "C:\\Windows\\SmS.exe" b84720b3e4ca9d33262a2650c78fe387.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunServices\SmS = "C:\\Windows\\SmS.exe" SmS.exe Set value (str) \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SmS = "C:\\Windows\\SmS.exe" SmS.exe - Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\SmS.exe b84720b3e4ca9d33262a2650c78fe387.exe File opened for modification C:\Windows\SmS.exe b84720b3e4ca9d33262a2650c78fe387.exe File created C:\Windows\SmS.exe SmS.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe 3064 SmS.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3064 SmS.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3316 wrote to memory of 3064 3316 b84720b3e4ca9d33262a2650c78fe387.exe 89 PID 3316 wrote to memory of 3064 3316 b84720b3e4ca9d33262a2650c78fe387.exe 89 PID 3316 wrote to memory of 3064 3316 b84720b3e4ca9d33262a2650c78fe387.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\b84720b3e4ca9d33262a2650c78fe387.exe"C:\Users\Admin\AppData\Local\Temp\b84720b3e4ca9d33262a2650c78fe387.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3316 -
C:\Windows\SmS.exeC:\Windows\SmS.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
PID:3064
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Windows\SmS.exe
- Size 39KB
- SHA256 8425941fd2bd6ed50176e0ba1096495fe76ffda88c3ce6dc8ee875125bc803e7
- MD5 b84720b3e4ca9d33262a2650c78fe387
- SHA1 9b59c5cf923eb52b2cc453c931fb3549712878e2
- SHA512 d756499583d698f0c9b72ede62f85d0698b85cf841ea7a7c0949012342b3c81c266cf2afe5b990c03ffe51d67138cc7d7e61db4a58a78ed41543fbe97df74e29
- SSDEEP 768:+IfVl4IfR1gmzgsDL+HA2Z7wHpZ9BWTMQHXSaZdzSEp/LHxbha5K:WAT3DL+gAeZyjHXS+SkHr
- MD5 SHA1 SHA512 SSDEEP