Resubmissions
31/03/2025, 00:22
250331-apdw1ssjs8 1028/03/2025, 22:52
250328-2tfd7avl15 1025/03/2025, 14:57
250325-sb3mbsxxht 10Analysis
-
max time kernel
437s -
max time network
549s -
platform
windows10-ltsc_2021_x64 -
resource
win10ltsc2021-20250314-en -
resource tags
-
submitted
28/03/2025, 22:52
General
-
Target
RansomwareSamples/MountLocker_20_11_2020_200KB.exe
-
Size
200KB
-
MD5
c2671bf5b5dedbfd3cfe3f0f944fbe01
-
SHA1
da3e830011e6f9d41dd6c93fdb48c47c1c6e35e1
-
SHA256
226a723ffb4a91d9950a8b266167c5b354ab0db1dc225578494917fe53867ef2
-
SHA512
256bc8582cc9b53b3cf9307a2882117476648ab9df540d501fc5f46a4030beacab9df2019f2d83b0a63d510803cbf6cbae01dc1325588f93a1a74521a07fe4d9
-
SSDEEP
1536:ssBoz9GFuIdclwKfVPoawSL20mRbg2DrE1mHkrY0f3r6fR0ZzDWR+3itGSh6ZVvg:ssS3oifBoaXhDWA4G3eeJaeIbmC00
Malware Config
Extracted
C:\Program Files\7-Zip\Lang\RecoveryManual.html
href="mailto:[email protected]">[email protected]</a><br>
Signatures
-
MountLocker Ransomware
Ransomware family first seen in late 2020, which threatens to leak files if ransom is not paid.
-
Mountlocker family
-
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
-
Drops desktop.ini file(s) 26 IoCs
-
Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
-
Drops file in Program Files directory 64 IoCs
-
System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
-
Modifies registry class 5 IoCs
-
Suspicious behavior: EnumeratesProcesses 5 IoCs
-
Suspicious use of AdjustPrivilegeToken 3 IoCs
-
Suspicious use of SetWindowsHookEx 1 IoCs
-
Suspicious use of WriteProcessMemory 9 IoCs
-
Views/modifies file attributes 1 TTPs 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\RansomwareSamples\MountLocker_20_11_2020_200KB.exe"C:\Users\Admin\AppData\Local\Temp\RansomwareSamples\MountLocker_20_11_2020_200KB.exe"1⤵
- Drops desktop.ini file(s)
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell.exe -windowstyle hidden -c $mypid='3200';[System.IO.File]::ReadAllText('C:\Users\Admin\AppData\Local\Temp\~240612640.tmp')|iex2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\\0E57E222.bat" "C:\Users\Admin\AppData\Local\Temp\RansomwareSamples\MountLocker_20_11_2020_200KB.exe""2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\attrib.exeattrib -s -r -h "C:\Users\Admin\AppData\Local\Temp\RansomwareSamples\MountLocker_20_11_2020_200KB.exe"3⤵
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
2KB
MD55e96465863b9231b1b374cc035f7d6fe
SHA1ae31dd4b43f082ab8880b82721bdbae638c3c807
SHA2569d0dc1e10b3aa704e6b58fa05d93cb62cf16aebfaf53a9df4c0eced762e6d564
SHA5126ae44d59d1820774478efeb9674be7aa87a144dff9b0cb56a1f0e2498222b46adc27105aa1075dab4593b7532a118b4f45a78fcf8de087e81df792732089a0ba
-
Filesize
65B
MD5348cae913e496198548854f5ff2f6d1e
SHA1a07655b9020205bd47084afd62a8bb22b48c0cdc
SHA256c80128f51871eec3ae2057989a025ce244277c1c180498a5aaef45d5214b8506
SHA512799796736d41d3fcb5a7c859571bb025ca2d062c4b86e078302be68c1a932ed4f78e003640df5405274364b5a9a9c0ba5e37177997683ee7ab54e5267590b611
-
Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
-
Filesize
4KB
MD54e1a1e3e715c291c71950d2fdc79e2be
SHA1dc2b3d20a9ec88e0d8d75c5097154687acc42983
SHA256acf88b9224ae067d92882d1c8ec1461a663e83f02848488ce125dc0538d87a39
SHA512d1be9f6459c248a93c95cc40a68e60ca2fe8068ff4ed5d442437a72bcc09ebf8568e3338d39abebbf3fe8e9e4e3a21a58e1ed6bdbcdd0a3b2ca46b6a81597d80
-
Filesize
68KB
-
Filesize
80KB
-
Filesize
7.7MB
-
Filesize
104KB
-
Filesize
5.6MB
-
Filesize
136KB
-
Filesize
32KB
-
Filesize
104KB
-
Filesize
6.5MB
-
Filesize
56KB
-
Filesize
600KB
-
Filesize
40KB
-
Filesize
4KB
-
Filesize
216KB
-
Filesize
6.8MB
-
Filesize
7.7MB
-
Filesize
136KB
-
Filesize
408KB
-
Filesize
408KB
-
Filesize
652KB
-
Filesize
3.3MB
-
Filesize
120KB
-
Filesize
304KB
-
Filesize
200KB
-
Filesize
304KB
-
Filesize
7.7MB
-
Filesize
7.7MB
-
Filesize
120KB
-
Filesize
7.7MB
-
Filesize
8KB
-
Filesize
8KB
-
Filesize
8KB
-
Filesize
8KB
-
Filesize
60KB
-
Filesize
216KB
-
Filesize
4KB
-
Filesize
8KB
-
Filesize
8KB
-
Filesize
4KB
-
Filesize
8KB
-
Filesize
8KB
-
Filesize
8KB
-
Filesize
8KB
-
Filesize
8KB
-
Filesize
60KB
-
Filesize
60KB
-
Filesize
60KB
-
Filesize
8KB
-
Filesize
60KB
-
Filesize
8KB