Analysis
-
max time kernel
77s -
max time network
166s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
07-11-2022 08:31
Behavioral task
behavioral1
Sample
d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe
Resource
win7-20220812-en
windows7-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
9 signatures
150 seconds
General
-
Target
d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe
-
Size
638KB
-
MD5
0e2c559240034863fb3febbcf6d76312
-
SHA1
45da16198a050f0435088c08850f7adef195b8b0
-
SHA256
d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd
-
SHA512
b0067f211788664d224d3664fa8c9061022cadfdc2b6990da1e292741b8387be47cdf63bc54993c3e4585f2992a844f340309e6d7b452fb8de8d152fbeb71b13
-
SSDEEP
6144:9vZ2iKiZ/QAKVfiROzkViZwc0W/1vNuMqTp/CelAaWjSZ/nWnKCXreO:d7wVfiRuqPW/dgMqIHdjSFWnKCX
Score
10/10
Malware Config
Signatures
-
Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe RVHOST.exe" d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe -
Disables RegEdit via registry modification 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe -
Disables Task Manager via registry modification
-
resource yara_rule behavioral1/memory/1880-55-0x0000000000400000-0x00000000004A3000-memory.dmp upx behavioral1/memory/1880-62-0x0000000000400000-0x00000000004A3000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\Yahoo Messengger = "C:\\Windows\\system32\\RVHOST.exe" d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\b: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\h: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\i: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\n: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\q: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\t: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\w: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\z: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\e: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\f: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\j: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\k: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\m: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\o: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\r: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\y: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\a: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\g: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\p: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\v: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\x: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\l: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\s: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened (read-only) \??\u: d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\SysWOW64\setting.ini d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened for modification C:\Windows\SysWOW64\setting.ini d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File created C:\Windows\SysWOW64\RVHOST.exe d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File opened for modification C:\Windows\SysWOW64\RVHOST.exe d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\RVHOST.exe d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe File created C:\Windows\RVHOST.exe d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349 d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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 d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1880 d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 1880 wrote to memory of 1952 1880 d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe 27 PID 1880 wrote to memory of 1952 1880 d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe 27 PID 1880 wrote to memory of 1952 1880 d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe 27 PID 1880 wrote to memory of 1952 1880 d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe 27 PID 1952 wrote to memory of 1752 1952 cmd.exe 29 PID 1952 wrote to memory of 1752 1952 cmd.exe 29 PID 1952 wrote to memory of 1752 1952 cmd.exe 29 PID 1952 wrote to memory of 1752 1952 cmd.exe 29 PID 1880 wrote to memory of 1072 1880 d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe 30 PID 1880 wrote to memory of 1072 1880 d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe 30 PID 1880 wrote to memory of 1072 1880 d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe 30 PID 1880 wrote to memory of 1072 1880 d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe 30 PID 1072 wrote to memory of 2020 1072 cmd.exe 32 PID 1072 wrote to memory of 2020 1072 cmd.exe 32 PID 1072 wrote to memory of 2020 1072 cmd.exe 32 PID 1072 wrote to memory of 2020 1072 cmd.exe 32
Processes
-
C:\Users\Admin\AppData\Local\Temp\d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe"C:\Users\Admin\AppData\Local\Temp\d57980cf661ee669e71eb50a0f06019e8f519d212fc71907f37bbe1d9b4eddfd.exe"1⤵
- Modifies WinLogon for persistence
- Disables RegEdit via registry modification
- Adds Run key to start application
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1880 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /C AT /delete /yes2⤵
- Suspicious use of WriteProcessMemory
PID:1952 -
C:\Windows\SysWOW64\at.exeAT /delete /yes3⤵PID:1752
-
-
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\RVHOST.exe2⤵
- Suspicious use of WriteProcessMemory
PID:1072 -
C:\Windows\SysWOW64\at.exeAT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\RVHOST.exe3⤵PID:2020
-
-