Analysis
- max time kernel
150s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
- submitted
28/07/2024, 02:11
General
- Target 05b182f630da98bc0845ec514822d9a1_JaffaCakes118.exe
- Size 4.5MB
- Sample240728-cmkynascrm
- SHA256 a16e1d0c91d621bca507473e61101ec0aae1f50bc2382f8b1c79375ec65037ef
Malware Config
Extracted
-
cryptbot
-
bibinene03.top
-
moraass05.top
Signatures
- CryptBot
A C++ stealer distributed widely in bundle with other software.
- CryptBot payload 19 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\05b182f630da98bc0845ec514822d9a1_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\05b182f630da98bc0845ec514822d9a1_JaffaCakes118.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\sibCDA2.tmp\0\1.exe"C:\Users\Admin\AppData\Local\Temp\sibCDA2.tmp\0\1.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
2ESzhwxwiot.zip
WquQWXA1G.zip
_Information.txt
_Information.txt
_Information.txt
_Screen_Desktop.jpeg
system_info.txt
system_info.txt
system_info.txt
Sibuia.dll
1.exe
SibClr.dll
memory/3524-21-0x0000000073F80000-0x0000000074730000-memory.dmp
memory/3524-19-0x0000000073F80000-0x0000000074730000-memory.dmp
memory/3524-248-0x0000000073F80000-0x0000000074730000-memory.dmp
memory/3524-247-0x0000000073F8E000-0x0000000073F8F000-memory.dmp
memory/3524-16-0x0000000073F80000-0x0000000074730000-memory.dmp
memory/3524-15-0x0000000010D90000-0x0000000010E4A000-memory.dmp
memory/3524-14-0x0000000010CF0000-0x0000000010D02000-memory.dmp
memory/3524-10-0x0000000073F8E000-0x0000000073F8F000-memory.dmp
memory/4648-30-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-257-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-26-0x0000000005330000-0x0000000005331000-memory.dmp
memory/4648-27-0x0000000005350000-0x0000000005351000-memory.dmp
memory/4648-246-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-28-0x0000000005340000-0x0000000005341000-memory.dmp
memory/4648-29-0x0000000000161000-0x00000000001BC000-memory.dmp
memory/4648-249-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-250-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-251-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-252-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-25-0x00000000777A4000-0x00000000777A6000-memory.dmp
memory/4648-255-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-31-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-260-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-262-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-264-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-267-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-269-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-272-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-275-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-278-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-284-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-287-0x0000000000160000-0x0000000000646000-memory.dmp
memory/4648-24-0x0000000000160000-0x0000000000646000-memory.dmp