Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20231020-en - resource tags
- submitted
15/11/2023, 00:19
General
- Target NEAS.99d4f72ae3890f8313b8d2cd631ce2a0.exe
- Size 1.1MB
- Sample231115-aml5lsha85
- SHA256 e02f9227ac23ab107053351d3806f105766afe4652474a4cf06ddb915d2f61c4
Malware Config
Extracted
-
cryptbot
-
alevkx42.top
-
payload_url
http://otiavy06.top/download.php?file=lv.exe
Signatures
- CryptBot
A C++ stealer distributed widely in bundle with other software.
- CryptBot payload 4 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\NEAS.99d4f72ae3890f8313b8d2cd631ce2a0.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.99d4f72ae3890f8313b8d2cd631ce2a0.exe"1⤵
- Checks processor information in registry
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3264 -s 13362⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3264 -ip 32641⤵
-
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
memory/600-9-0x00000234C7090000-0x00000234C70A0000-memory.dmp
memory/600-25-0x00000234C7190000-0x00000234C71A0000-memory.dmp
memory/600-41-0x00000234CF500000-0x00000234CF501000-memory.dmp
memory/600-43-0x00000234CF530000-0x00000234CF531000-memory.dmp
memory/600-44-0x00000234CF530000-0x00000234CF531000-memory.dmp
memory/600-45-0x00000234CF640000-0x00000234CF641000-memory.dmp
memory/3264-1-0x0000000000750000-0x0000000000850000-memory.dmp
memory/3264-2-0x00000000022F0000-0x00000000023BC000-memory.dmp
memory/3264-5-0x0000000000400000-0x0000000000522000-memory.dmp
memory/3264-7-0x00000000022F0000-0x00000000023BC000-memory.dmp
memory/3264-8-0x0000000000400000-0x00000000004D0000-memory.dmp