Analysis
- max time kernel
135s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
19/11/2022, 03:04
Static task
static1
Behavioral task
behavioral1
Sample
10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe
Resource
win7-20220901-en
12 signatures
150 seconds
General
- Target 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe
- Size 419KB
- Sample221119-dkm6nsfa2t
- SHA256 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5
- MD5 34c755570f35d8443baf585848a7d6b0
- SHA1 a80fb72c042954976a6fbad53d62fd9578464f01
- SHA512 ea52b23d4e6e88255137a066ce642bdd74a6521a1d92395e5d70169f79c97838314d37d07c6d4082f3bf246c5da159bdcc783d03c41e438348bf67150fb250d9
- SSDEEP 12288:Ii2KfcG4m4VmU/G3imOZDFvciXne3rIAoo9:kKJ4DVmknZZci6Loo
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\GCnl5JJWuPD.lnk 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe - Drops desktop.ini file(s) 2 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini RegAsm.exe File opened for modification C:\Windows\assembly\Desktop.ini RegAsm.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3440 set thread context of 5112 3440 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe 80 - Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\assembly\Desktop.ini RegAsm.exe File opened for modification C:\Windows\assembly\Desktop.ini RegAsm.exe File opened for modification C:\Windows\assembly RegAsm.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Runs ping.exe 1 TTPs 1 IoCs
pid Process 4196 PING.EXE - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3440 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe 3440 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe 3440 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe 3440 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 5112 RegAsm.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3440 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe Token: SeDebugPrivilege 5112 RegAsm.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 5112 RegAsm.exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 3440 wrote to memory of 5112 3440 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe 80 PID 3440 wrote to memory of 5112 3440 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe 80 PID 3440 wrote to memory of 5112 3440 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe 80 PID 3440 wrote to memory of 5112 3440 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe 80 PID 3440 wrote to memory of 5112 3440 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe 80 PID 3440 wrote to memory of 5112 3440 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe 80 PID 3440 wrote to memory of 5112 3440 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe 80 PID 3440 wrote to memory of 5112 3440 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe 80 PID 3440 wrote to memory of 3652 3440 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe 84 PID 3440 wrote to memory of 3652 3440 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe 84 PID 3440 wrote to memory of 3652 3440 10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe 84 PID 3652 wrote to memory of 4196 3652 cmd.exe 86 PID 3652 wrote to memory of 4196 3652 cmd.exe 86 PID 3652 wrote to memory of 4196 3652 cmd.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe"C:\Users\Admin\AppData\Local\Temp\10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3440 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"2⤵
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:5112
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C:\Windows\SysWOW64\cmd.exe"cmd" /c ping 127.0.0.1 & del "C:\Users\Admin\AppData\Local\Temp\10b81639c0629fff525883875b7cc4e1a01afec8c9138f06abe7e4e5627d00c5.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3652 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:4196
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