Analysis
- max time kernel
149s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20240704-en - resource tags
- submitted
29/07/2024, 11:42
General
- Target 44466d99c03b4c57fb75baefd17a4135_JaffaCakes118.exe
- Size 4.6MB
- Sample240729-nvdebs1dmc
- SHA256 2acd35129a22225aac7b32a7f18370e14850e17434ac1aa195d23e45c2176405
Malware Config
Extracted
-
cryptbot
-
bibinene03.top
-
moraass05.top
Signatures
- CryptBot
A C++ stealer distributed widely in bundle with other software.
- CryptBot payload 18 IoCs
- Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Executes dropped EXE 1 IoCs
- Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
- Loads dropped DLL 3 IoCs
- 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.
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\44466d99c03b4c57fb75baefd17a4135_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\44466d99c03b4c57fb75baefd17a4135_JaffaCakes118.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\sibD999.tmp\0\5.exe"C:\Users\Admin\AppData\Local\Temp\sibD999.tmp\0\5.exe" /s2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
-
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
Sibuia.dll
_Information.txt
_Information.txt
_Screen_Desktop.jpeg
system_info.txt
x6iQHk2p65u7Zx.zip
zjaOADyv1VSWA.zip
5.exe
SibClr.dll
memory/848-23-0x00000000744E0000-0x0000000074C90000-memory.dmp
memory/848-19-0x00000000744E0000-0x0000000074C90000-memory.dmp
memory/848-16-0x0000000010D00000-0x0000000010DBA000-memory.dmp
memory/848-249-0x00000000744EE000-0x00000000744EF000-memory.dmp
memory/848-15-0x00000000744E0000-0x0000000074C90000-memory.dmp
memory/848-14-0x0000000010CE0000-0x0000000010CF2000-memory.dmp
memory/848-10-0x00000000744EE000-0x00000000744EF000-memory.dmp
memory/4464-25-0x0000000077D04000-0x0000000077D06000-memory.dmp
memory/4464-257-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-31-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-26-0x0000000005780000-0x0000000005781000-memory.dmp
memory/4464-27-0x0000000005770000-0x0000000005771000-memory.dmp
memory/4464-28-0x00000000057A0000-0x00000000057A1000-memory.dmp
memory/4464-246-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-29-0x0000000005790000-0x0000000005791000-memory.dmp
memory/4464-250-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-30-0x0000000000DA1000-0x0000000000DFC000-memory.dmp
memory/4464-252-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-253-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-254-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-32-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-260-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-263-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-265-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-268-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-272-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-274-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-277-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-283-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-24-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-287-0x0000000000DA0000-0x0000000001294000-memory.dmp
memory/4464-290-0x0000000000DA0000-0x0000000001294000-memory.dmp