Analysis
-
max time kernel
150s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
09/05/2022, 17:00
Static task
static1
Behavioral task
behavioral1
Sample
ff7b10fe298cf2eec53adcdee9958ccf.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
ff7b10fe298cf2eec53adcdee9958ccf.exe
Resource
win10v2004-20220414-en
General
-
Target
ff7b10fe298cf2eec53adcdee9958ccf.exe
-
Size
42KB
-
MD5
ff7b10fe298cf2eec53adcdee9958ccf
-
SHA1
9c100db97f6d11ab52e9b01990ee10b8a8b4a6df
-
SHA256
0a10da2b3f7b1124c277b9f8d08e0cfb409f69047d01e241f3e2a09726bf9ab0
-
SHA512
0bd4dbdf6df2b3f23e5a7fabbb39ef83b437b9706f3553c5206240e01dd3a1d027e9ca95ab091cd1345c1d51e4a43affffc10d02b220bb1ff630758be233afe4
Malware Config
Extracted
bitrat
1.38
carmenariasu283.duckdns.org:5020
-
communication_password
202cb962ac59075b964b07152d234b70
-
tor_process
tor
Signatures
-
suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)
suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)
-
resource yara_rule behavioral2/memory/1552-136-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/1552-137-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/1552-138-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/1552-139-0x0000000000400000-0x00000000007E4000-memory.dmp upx behavioral2/memory/1552-140-0x0000000000400000-0x00000000007E4000-memory.dmp upx -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation ff7b10fe298cf2eec53adcdee9958ccf.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ebjtiuh = "\"C:\\Users\\Admin\\AppData\\Roaming\\Gmgweb\\Ebjtiuh.exe\"" ff7b10fe298cf2eec53adcdee9958ccf.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
pid Process 1552 InstallUtil.exe 1552 InstallUtil.exe 1552 InstallUtil.exe 1552 InstallUtil.exe 1552 InstallUtil.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1860 set thread context of 1552 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 91 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Delays execution with timeout.exe 1 IoCs
pid Process 4472 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe Token: SeShutdownPrivilege 1552 InstallUtil.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1552 InstallUtil.exe 1552 InstallUtil.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 1860 wrote to memory of 5028 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 86 PID 1860 wrote to memory of 5028 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 86 PID 1860 wrote to memory of 5028 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 86 PID 5028 wrote to memory of 4472 5028 cmd.exe 88 PID 5028 wrote to memory of 4472 5028 cmd.exe 88 PID 5028 wrote to memory of 4472 5028 cmd.exe 88 PID 1860 wrote to memory of 728 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 90 PID 1860 wrote to memory of 728 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 90 PID 1860 wrote to memory of 728 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 90 PID 1860 wrote to memory of 1552 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 91 PID 1860 wrote to memory of 1552 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 91 PID 1860 wrote to memory of 1552 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 91 PID 1860 wrote to memory of 1552 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 91 PID 1860 wrote to memory of 1552 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 91 PID 1860 wrote to memory of 1552 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 91 PID 1860 wrote to memory of 1552 1860 ff7b10fe298cf2eec53adcdee9958ccf.exe 91
Processes
-
C:\Users\Admin\AppData\Local\Temp\ff7b10fe298cf2eec53adcdee9958ccf.exe"C:\Users\Admin\AppData\Local\Temp\ff7b10fe298cf2eec53adcdee9958ccf.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1860 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout 202⤵
- Suspicious use of WriteProcessMemory
PID:5028 -
C:\Windows\SysWOW64\timeout.exetimeout 203⤵
- Delays execution with timeout.exe
PID:4472
-
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe2⤵PID:728
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1552
-