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| File name: | va_1.8_02_xp.exe |
| Full analysis: | https://app.any.run/tasks/020f19db-c742-487e-b48d-a1bcb7dc305a |
| Verdict: | Malicious activity |
| Threats: | Medusa is a ransomware malware family targeting businesses and institutions. Medusa encrypts crucial data, rendering it inaccessible, and attempts to pressure users to pay to regain control of their information. The group behind this malicious software hosts a TOR website where it shares the list of the organizations whose infrastructure has been compromised. This malware utilizes various tactics, including exploiting vulnerabilities and employs a unique file extension (".MEDUSA") to mark encrypted files. |
| Analysis date: | November 30, 2020, 03:04:43 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | 388A3776B403C5705B7FB0C003BBF019 |
| SHA1: | 4C5C7A139BEBA56BE0085076C5E862C8763AFCE2 |
| SHA256: | 4CF090E3AE23EA6CBE76DF697BF7143BCC95ACFC1521FBE5AF77CB5033FAE87A |
| SSDEEP: | 12288:lr23xQOUwwvBl0zHPOwuBTHWQV5jIMN8MdCti768mr8Ml:lk1UwwvBl0zvOw8T2gIMNbdc3r8M |
MALICIOUS
Changes the autorun value in the registry
- va_1.8_02_xp.exe (PID: 2888)
Drops executable file immediately after starts
- va_1.8_02_xp.exe (PID: 2888)
Deletes shadow copies
- va_1.8_02_xp.exe (PID: 2888)
Medusa ransom note found
- va_1.8_02_xp.exe (PID: 2888)
Starts BCDEDIT.EXE to disable recovery
- va_1.8_02_xp.exe (PID: 2888)
Renames files like Ransomware
- va_1.8_02_xp.exe (PID: 2888)
SUSPICIOUS
Creates files in the user directory
- va_1.8_02_xp.exe (PID: 2888)
Executable content was dropped or overwritten
- va_1.8_02_xp.exe (PID: 2888)
Creates files like Ransomware instruction
- va_1.8_02_xp.exe (PID: 2888)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 Executable MS Visual C++ (generic) (42.2) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (37.3) |
| .dll | | | Win32 Dynamic Link Library (generic) (8.8) |
| .exe | | | Win32 Executable (generic) (6) |
| .exe | | | Generic Win/DOS Executable (2.7) |
EXIF
EXE
| Subsystem: | Windows GUI |
|---|---|
| SubsystemVersion: | 5.1 |
| ImageVersion: | - |
| OSVersion: | 5.1 |
| EntryPoint: | 0x37f67 |
| UninitializedDataSize: | - |
| InitializedDataSize: | 221696 |
| CodeSize: | 452608 |
| LinkerVersion: | 14.22 |
| PEType: | PE32 |
| TimeStamp: | 2019:12:18 17:34:55+01:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 18-Dec-2019 16:34:55 |
| Detected languages: |
|
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0090 |
| Pages in file: | 0x0003 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x0000 |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x0000 |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x000000F8 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 5 |
| Time date stamp: | 18-Dec-2019 16:34:55 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Sections
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00001000 | 0x0006E61B | 0x0006E800 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.53189 |
.rdata | 0x00070000 | 0x0002B9D2 | 0x0002BA00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 3.57932 |
.data | 0x0009C000 | 0x00004A18 | 0x00003800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 4.81561 |
.rsrc | 0x000A1000 | 0x000001E0 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.70824 |
.reloc | 0x000A2000 | 0x00005900 | 0x00005A00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 6.58167 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 4.91161 | 381 | UNKNOWN | English - United States | RT_MANIFEST |
Imports
ADVAPI32.dll |
CRYPT32.dll |
IPHLPAPI.DLL |
KERNEL32.dll |
MPR.dll |
NETAPI32.dll |
SHELL32.dll |
WS2_32.dll |
Total processes
71
Monitored processes
19
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 2888 | "C:\Users\admin\AppData\Local\Temp\va_1.8_02_xp.exe" | C:\Users\admin\AppData\Local\Temp\va_1.8_02_xp.exe | explorer.exe | |
User: admin Integrity Level: MEDIUM | ||||
| 3832 | vssadmin.exe Delete Shadows /All /Quiet | C:\Windows\system32\vssadmin.exe | — | va_1.8_02_xp.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Command Line Interface for Microsoft® Volume Shadow Copy Service Exit code: 2 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 2608 | bcdedit.exe /set {default} recoveryenabled No | C:\Windows\system32\bcdedit.exe | — | va_1.8_02_xp.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Boot Configuration Data Editor Exit code: 1 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) | ||||
| 3156 | bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures | C:\Windows\system32\bcdedit.exe | — | va_1.8_02_xp.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Boot Configuration Data Editor Exit code: 1 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) | ||||
| 3820 | wbadmin DELETE SYSTEMSTATEBACKUP | C:\Windows\system32\wbadmin.exe | — | va_1.8_02_xp.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Command Line Interface for Microsoft® BLB Backup Exit code: 4294967293 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 2604 | wbadmin DELETE SYSTEMSTATEBACKUP -deleteOldest | C:\Windows\system32\wbadmin.exe | — | va_1.8_02_xp.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Command Line Interface for Microsoft® BLB Backup Exit code: 4294967293 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 3560 | wmic.exe SHADOWCOPY /nointeractive | C:\Windows\System32\Wbem\wmic.exe | — | va_1.8_02_xp.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: WMI Commandline Utility Exit code: 44124 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 3184 | vssadmin.exe Delete Shadows /All /Quiet | C:\Windows\system32\vssadmin.exe | — | va_1.8_02_xp.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Command Line Interface for Microsoft® Volume Shadow Copy Service Exit code: 2 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 2080 | bcdedit.exe /set {default} recoveryenabled No | C:\Windows\system32\bcdedit.exe | — | va_1.8_02_xp.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Boot Configuration Data Editor Exit code: 1 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) | ||||
| 3816 | bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures | C:\Windows\system32\bcdedit.exe | — | va_1.8_02_xp.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Boot Configuration Data Editor Exit code: 1 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) | ||||
Total events
367
Read events
365
Write events
2
Delete events
0
Modification events
| (PID) Process: | (2888) va_1.8_02_xp.exe | Key: | HKEY_CURRENT_USER\Software\MDSLK |
| Operation: | write | Name: | Self |
Value: va_1.8_02_xp.exe | |||
| (PID) Process: | (2888) va_1.8_02_xp.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | svhost |
Value: C:\Users\admin\AppData\Roaming\svhost.exe | |||
Executable files
1
Suspicious files
66
Text files
41
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2888 | va_1.8_02_xp.exe | C:\Users\admin\.oracle_jre_usage\90737d32e3abaa4.timestamp | — | |
MD5:— | SHA256:— | |||
| 2888 | va_1.8_02_xp.exe | C:\Users\admin\Contacts\admin.contact | — | |
MD5:— | SHA256:— | |||
| 2888 | va_1.8_02_xp.exe | C:\Users\admin\Desktop\areanecessary.png | — | |
MD5:— | SHA256:— | |||
| 2888 | va_1.8_02_xp.exe | C:\Users\admin\Desktop\beensound.rtf | — | |
MD5:— | SHA256:— | |||
| 2888 | va_1.8_02_xp.exe | C:\Users\admin\Desktop\coffeepartner.jpg | — | |
MD5:— | SHA256:— | |||
| 2888 | va_1.8_02_xp.exe | C:\Users\admin\Desktop\desktopman.rtf | — | |
MD5:— | SHA256:— | |||
| 2888 | va_1.8_02_xp.exe | C:\Users\admin\Desktop\futurethomas.rtf | — | |
MD5:— | SHA256:— | |||
| 2888 | va_1.8_02_xp.exe | C:\Users\admin\Desktop\pchinese.rtf | — | |
MD5:— | SHA256:— | |||
| 2888 | va_1.8_02_xp.exe | C:\Users\admin\Desktop\plansrules.rtf | — | |
MD5:— | SHA256:— | |||
| 2888 | va_1.8_02_xp.exe | C:\Users\admin\Desktop\scientificfunction.jpg | — | |
MD5:— | SHA256:— | |||
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HTTP(S) requests
0
TCP/UDP connections
0
DNS requests
0
Threats
0
HTTP requests
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