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| File name: | dad's_secret_mailbox.exe |
| Full analysis: | https://app.any.run/tasks/79ccfdb4-9798-4d47-9ea0-40f9975c171c |
| Verdict: | Malicious activity |
| Analysis date: | September 30, 2020, 13:27:22 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (console) Intel 80386, for MS Windows |
| MD5: | F8408F0A3CDD898370B7E95DD28F7166 |
| SHA1: | A95F890A4CA179F5435965A86233777E8FEBE312 |
| SHA256: | 140F9FEBD427F8496127A3FA2CB5E46F956F1C2074F18E0BB5B5ACDF6DBDE15E |
| SSDEEP: | 98304:q7f8XnZIL+PmHGfp49pYORSGvEFqYs7O3OXw4L93Ic9vdZiLmtzS:q7f8JILLfHEOkqYs7WG79XyLozS |
MALICIOUS
Runs PING.EXE for delay simulation
- cmd.exe (PID: 720)
- cmd.exe (PID: 2000)
SUSPICIOUS
Uses REG.EXE to modify Windows registry
- cmd.exe (PID: 2228)
- cmd.exe (PID: 720)
- cmd.exe (PID: 2176)
- cmd.exe (PID: 2000)
Starts CMD.EXE for commands execution
- cmd.exe (PID: 2228)
- dad's_secret_mailbox.exe (PID: 2896)
- cmd.exe (PID: 2176)
Application launched itself
- cmd.exe (PID: 2228)
- cmd.exe (PID: 2176)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win64 Executable (generic) (64.6) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (15.4) |
| .exe | | | Win32 Executable (generic) (10.5) |
| .exe | | | Generic Win/DOS Executable (4.6) |
| .exe | | | DOS Executable Generic (4.6) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2020:09:21 03:44:34+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 14.22 |
| CodeSize: | 5632 |
| InitializedDataSize: | 17408 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x8362e2 |
| OSVersion: | 6 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| Subsystem: | Windows command line |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_CUI |
| Compilation Date: | 21-Sep-2020 01:44:34 |
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: | 0x00000080 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 7 |
| Time date stamp: | 21-Sep-2020 01:44:34 |
| 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 | 0x0000144B | 0x00000000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 0 |
.rdata | 0x00003000 | 0x00001364 | 0x00000000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 0 |
.data | 0x00005000 | 0x00000400 | 0x00000000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
.vmp0 | 0x00006000 | 0x0038DC6A | 0x00000000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 0 |
.vmp1 | 0x00394000 | 0x005B9AE0 | 0x005B9C00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 7.95977 |
.reloc | 0x0094E000 | 0x000005E4 | 0x00000600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.29759 |
.rsrc | 0x0094F000 | 0x000001D5 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.71768 |
Imports
KERNEL32.dll |
MSVCP140.dll |
SHELL32.dll |
SHLWAPI.dll |
USER32.dll |
VCRUNTIME140.dll |
WTSAPI32.dll |
api-ms-win-crt-convert-l1-1-0.dll |
api-ms-win-crt-heap-l1-1-0.dll |
api-ms-win-crt-locale-l1-1-0.dll |
Total processes
65
Monitored processes
29
Malicious processes
3
Suspicious processes
2
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 2896 | "C:\Users\admin\AppData\Local\Temp\dad's_secret_mailbox.exe" | C:\Users\admin\AppData\Local\Temp\dad's_secret_mailbox.exe | — | explorer.exe |
User: admin Integrity Level: MEDIUM Exit code: 1 | ||||
| 2228 | C:\Windows\system32\cmd.exe /c msg_from_dad.bat | C:\Windows\system32\cmd.exe | — | dad's_secret_mailbox.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) | ||||
| 2204 | mode con:cols=80 lines=50 | C:\Windows\system32\mode.com | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: DOS Device MODE Utility Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 2968 | reg add HKCU\Console\Msg_from_Dad /v FontSize /t reg_dword /d 0x000C0000 /f | C:\Windows\system32\reg.exe | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Registry Console Tool Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 3316 | reg add HKCU\Console\Msg_from_Dad /v FontFamily /t reg_dword /d 0x00000036 /f | C:\Windows\system32\reg.exe | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Registry Console Tool Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 1512 | reg add HKCU\Console\Msg_from_Dad /v WindowSize /t reg_dword /d 0x003c005a /f | C:\Windows\system32\reg.exe | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Registry Console Tool Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 764 | reg add HKCU\Console\Msg_from_Dad /v ScreenColors /t reg_dword /d 0x0000000f /f | C:\Windows\system32\reg.exe | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Registry Console Tool Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 2448 | reg add HKCU\Console\Msg_from_Dad /v CodePage /t reg_dword /d 0x000001b5 /f | C:\Windows\system32\reg.exe | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Registry Console Tool Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 2372 | reg add HKCU\Console\Msg_from_Dad /v ScreenBufferSize /t reg_dword /d 0x003c005a /f | C:\Windows\system32\reg.exe | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Registry Console Tool Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 3188 | reg add HKCU\Console\Msg_from_Dad /v FontWeight /t reg_dword /d 0x00000190 /f | C:\Windows\system32\reg.exe | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Registry Console Tool Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
Total events
59
Read events
41
Write events
16
Delete events
2
Modification events
| (PID) Process: | — | Key: | HKEY_CURRENT_USER\Console\Msg_from_Dad |
| Operation: | write | Name: | FontSize |
Value: 786432 | |||
| (PID) Process: | — | Key: | HKEY_CURRENT_USER\Console\Msg_from_Dad |
| Operation: | write | Name: | FontFamily |
Value: 54 | |||
| (PID) Process: | — | Key: | HKEY_CURRENT_USER\Console\Msg_from_Dad |
| Operation: | write | Name: | WindowSize |
Value: 3932250 | |||
| (PID) Process: | — | Key: | HKEY_CURRENT_USER\Console\Msg_from_Dad |
| Operation: | write | Name: | ScreenColors |
Value: 15 | |||
| (PID) Process: | — | Key: | HKEY_CURRENT_USER\Console\Msg_from_Dad |
| Operation: | write | Name: | CodePage |
Value: 437 | |||
| (PID) Process: | — | Key: | HKEY_CURRENT_USER\Console\Msg_from_Dad |
| Operation: | write | Name: | ScreenBufferSize |
Value: 3932250 | |||
| (PID) Process: | — | Key: | HKEY_CURRENT_USER\Console\Msg_from_Dad |
| Operation: | write | Name: | FontWeight |
Value: 400 | |||
| (PID) Process: | — | Key: | HKEY_CURRENT_USER\Console\Msg_from_Dad |
| Operation: | write | Name: | FaceName |
Value: Lucida Console | |||
| (PID) Process: | — | Key: | HKEY_CURRENT_USER\Console\Msg_from_Dad |
| Operation: | delete key | Name: | (default) |
Value: | |||
| (PID) Process: | — | Key: | HKEY_CURRENT_USER\Console\Msgs_deleted |
| Operation: | write | Name: | FontSize |
Value: 786432 | |||
Executable files
0
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
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HTTP(S) requests
0
TCP/UDP connections
0
DNS requests
0
Threats
0
HTTP requests
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