Analysis
- max time kernel
161s - max time network
120s - platform
windows7_x64 - resource
win7-en-20211208 - submitted
31/01/2022, 07:28
Static task
static1
Behavioral task
behavioral1
Sample
851276c6c899eac84e4e87e338499abb.exe
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
851276c6c899eac84e4e87e338499abb.exe
Resource
win10-en-20211208
windows10_x64
0 signatures
0 seconds
General
- Target 851276c6c899eac84e4e87e338499abb.exe
- Size 260KB
- Sample220131-japjmsgfhm
- SHA256 03db70c0bf951c67a9a85207faa39c6c129a8bb667dcf9cbbb472405fb77f3dc
- MD5 851276c6c899eac84e4e87e338499abb
- SHA1 9860be18be56958bbde2c6953987eb248c433eba
- SHA512 10cd2892ca9c7c2533078f88e97338ba0ead9333b8fae706ffb2675ae3aeaa57859295ee859e58d5be8ee07dddd676c26c9728e8d96383cb27660393afc6f0ce
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Version
-
2020
C2
-
http://host-data-coin-11.com/
-
http://file-coin-host-12.com/
rc4.i32
rc4.i32
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 396 tvwerhu 1104 tvwerhu - Deletes itself 1 IoCs
pid Process 1200 Process not Found - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1692 set thread context of 1568 1692 851276c6c899eac84e4e87e338499abb.exe 27 PID 396 set thread context of 1104 396 tvwerhu 32 - Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 851276c6c899eac84e4e87e338499abb.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI tvwerhu Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI tvwerhu Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI tvwerhu Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 851276c6c899eac84e4e87e338499abb.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 851276c6c899eac84e4e87e338499abb.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1568 851276c6c899eac84e4e87e338499abb.exe 1568 851276c6c899eac84e4e87e338499abb.exe 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found 1200 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 1568 851276c6c899eac84e4e87e338499abb.exe 1104 tvwerhu - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1200 Process not Found 1200 Process not Found - Suspicious use of SendNotifyMessage 2 IoCs
pid Process 1200 Process not Found 1200 Process not Found - Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 1692 wrote to memory of 1568 1692 851276c6c899eac84e4e87e338499abb.exe 27 PID 1692 wrote to memory of 1568 1692 851276c6c899eac84e4e87e338499abb.exe 27 PID 1692 wrote to memory of 1568 1692 851276c6c899eac84e4e87e338499abb.exe 27 PID 1692 wrote to memory of 1568 1692 851276c6c899eac84e4e87e338499abb.exe 27 PID 1692 wrote to memory of 1568 1692 851276c6c899eac84e4e87e338499abb.exe 27 PID 1692 wrote to memory of 1568 1692 851276c6c899eac84e4e87e338499abb.exe 27 PID 1692 wrote to memory of 1568 1692 851276c6c899eac84e4e87e338499abb.exe 27 PID 676 wrote to memory of 396 676 taskeng.exe 31 PID 676 wrote to memory of 396 676 taskeng.exe 31 PID 676 wrote to memory of 396 676 taskeng.exe 31 PID 676 wrote to memory of 396 676 taskeng.exe 31 PID 396 wrote to memory of 1104 396 tvwerhu 32 PID 396 wrote to memory of 1104 396 tvwerhu 32 PID 396 wrote to memory of 1104 396 tvwerhu 32 PID 396 wrote to memory of 1104 396 tvwerhu 32 PID 396 wrote to memory of 1104 396 tvwerhu 32 PID 396 wrote to memory of 1104 396 tvwerhu 32 PID 396 wrote to memory of 1104 396 tvwerhu 32
Processes
-
C:\Users\Admin\AppData\Local\Temp\851276c6c899eac84e4e87e338499abb.exe"C:\Users\Admin\AppData\Local\Temp\851276c6c899eac84e4e87e338499abb.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1692 -
C:\Users\Admin\AppData\Local\Temp\851276c6c899eac84e4e87e338499abb.exe"C:\Users\Admin\AppData\Local\Temp\851276c6c899eac84e4e87e338499abb.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1568
-
-
C:\Windows\system32\taskeng.exetaskeng.exe {F50AE4A8-EB1D-43D9-AE46-8F3391DFF807} S-1-5-21-3846991908-3261386348-1409841751-1000:VQVVOAJK\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:676 -
C:\Users\Admin\AppData\Roaming\tvwerhuC:\Users\Admin\AppData\Roaming\tvwerhu2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:396 -
C:\Users\Admin\AppData\Roaming\tvwerhuC:\Users\Admin\AppData\Roaming\tvwerhu3⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:1104
-
-