Analysis
-
max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
-
submitted
16-12-2024 10:50
General
-
Target
f8a9d3f458a7ab3af54cde87d2b0b4f6_JaffaCakes118.exe
-
Size
669KB
-
MD5
f8a9d3f458a7ab3af54cde87d2b0b4f6
-
SHA1
9984cfbbf8c86c16d0ca2fd1388ed516213a6eb8
-
SHA256
45f0bb5539b7ce29c74f11c46b1f1199eae518af04ff7bb499e10f4780dc7530
-
SHA512
324b73a4fb223d653fb56f3d0081fdd4429ca222c43069141f6df4e53538b2dd25c0f25fad14d8c96e0bbbb5b9a7de6fc93b96695315a777aa5c065035b49dff
-
SSDEEP
12288:dQA0FfTcwpBuV2UxqDmuiLZeUaoFi2XZWfGe615HhAZV8DYKD/KeX:Tuf4wTuV2Ux3uIZeUBi2Te6HWRKrKe
Malware Config
Extracted
\Device\HarddiskVolume1\HOW_TO_RECOVER_DATA.html
Signatures
-
MedusaLocker
Ransomware with several variants first seen in September 2019.
-
MedusaLocker payload 1 IoCs
-
Medusalocker family
-
UAC bypass 3 TTPs 2 IoCs
-
Renames multiple (218) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Executes dropped EXE 1 IoCs
-
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Checks whether UAC is enabled 1 TTPs 1 IoCs
-
Drops desktop.ini file(s) 1 IoCs
-
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
-
Suspicious use of AdjustPrivilegeToken 63 IoCs
-
Suspicious use of WriteProcessMemory 9 IoCs
-
System policy modification 1 TTPs 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f8a9d3f458a7ab3af54cde87d2b0b4f6_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f8a9d3f458a7ab3af54cde87d2b0b4f6_JaffaCakes118.exe"1⤵
- UAC bypass
- Checks whether UAC is enabled
- Drops desktop.ini file(s)
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- System policy modification
-
C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Roaming\svhost.exeC:\Users\Admin\AppData\Roaming\svhost.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
2Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
669KB
MD5f8a9d3f458a7ab3af54cde87d2b0b4f6
SHA19984cfbbf8c86c16d0ca2fd1388ed516213a6eb8
SHA25645f0bb5539b7ce29c74f11c46b1f1199eae518af04ff7bb499e10f4780dc7530
SHA512324b73a4fb223d653fb56f3d0081fdd4429ca222c43069141f6df4e53538b2dd25c0f25fad14d8c96e0bbbb5b9a7de6fc93b96695315a777aa5c065035b49dff
-
Filesize
536B
MD5df7a3099d7bc6126c417c81f992b92c8
SHA1c5bee95798a23785196c576f598d307fb84b4786
SHA25621a996726af3c9f99ef59e93c145f6980dc789ff823ec1b69e8bee88a1538820
SHA5126d6a730959d91f3d318edde638d51257980bd739f401e7b9ca5f0ac502a3aaadbc954b88691bab6de7a0e354f1b642a47d464b49ed9c98bc67f992525b618688
-
Filesize
5KB
MD58600724782496af1917e88a7219b138e
SHA1e5bbef050d55d3de868e50ebac1a94d8a514cd10
SHA25615274684d4b95d4c1ffbb77935d7a557d8b6ca02f7792276806bdb513a098f26
SHA5122d1b9beea03b76af0bf3c8464b29b29b33d178af0e5c7cbe1ca11b632c298ea38bc846664dcfc1185b2659705b94757efb0364649024667bd9651faef96c211c