| File name: | winlogon.exe |
| Full analysis: | https://app.any.run/tasks/e2fc8982-eef0-41ba-874e-dbd95baacb18 |
| Verdict: | Malicious activity |
| Analysis date: | August 12, 2022, 20:49:41 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed |
| MD5: | 8B8CEAC796A6573365C29209F5F13A70 |
| SHA1: | D04B441FEB7CC6F1E79C6FDA357A72457BA23A96 |
| SHA256: | EABBF7EFD3D005EB824A27FFE4C0A670F24003E37773D4E53D060A0F551EFCF4 |
| SSDEEP: | 384:qfNgW7LdbkFp24gYBZRsEIcHeC6i/yncOxwz:qfCqb0p24VjRsEdeC6itOx |
MALICIOUS
Drops executable file immediately after starts
- winlogon.exe (PID: 1420)
Changes the autorun value in the registry
- lsass.exe (PID: 2432)
SUSPICIOUS
Checks supported languages
- winlogon.exe (PID: 1420)
- lsass.exe (PID: 2432)
Reads the computer name
- winlogon.exe (PID: 1420)
Executable content was dropped or overwritten
- winlogon.exe (PID: 1420)
Drops a file with a compile date too recent
- winlogon.exe (PID: 1420)
Starts itself from another location
- winlogon.exe (PID: 1420)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | UPX compressed Win32 Executable (61.1) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (14.8) |
| .exe | | | Win32 Executable (generic) (10.1) |
| .exe | | | Win16/32 Executable Delphi generic (4.6) |
| .exe | | | Generic Win/DOS Executable (4.5) |
EXIF
EXE
| Subsystem: | Windows GUI |
|---|---|
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0xe280 |
| UninitializedDataSize: | 40960 |
| InitializedDataSize: | 4096 |
| CodeSize: | 16384 |
| LinkerVersion: | 2.25 |
| PEType: | PE32 |
| TimeStamp: | 1992:06:20 00:22:17+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 19-Jun-1992 22:22:17 |
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0050 |
| Pages in file: | 0x0002 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x000F |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x001A |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000100 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 3 |
| Time date stamp: | 19-Jun-1992 22:22:17 |
| 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 |
|---|---|---|---|---|---|
UPX0 | 0x00001000 | 0x0000A000 | 0x00000000 | IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
UPX1 | 0x0000B000 | 0x00004000 | 0x00003600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.75248 |
.rsrc | 0x0000F000 | 0x00001000 | 0x00000400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 2.84849 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
CFG | 6.75886 | 172 | Latin 1 / Western European | UNKNOWN | RT_RCDATA |
DVCLAL | 3.875 | 16 | Latin 1 / Western European | UNKNOWN | RT_RCDATA |
PACKAGEINFO | 7.19504 | 376 | Latin 1 / Western European | UNKNOWN | RT_RCDATA |
Imports
KERNEL32.DLL |
URLMON.DLL |
advapi32.dll |
shell32.dll |
shfolder.dll |
shlwapi.dll |
user32.dll |
wsock32.dll |
Total processes
35
Monitored processes
2
Malicious processes
1
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1420 | "C:\Users\admin\AppData\Local\Temp\winlogon.exe" | C:\Users\admin\AppData\Local\Temp\winlogon.exe | Explorer.EXE | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 2432 | "C:\Users\admin\appdata\local\lsass.exe" | C:\Users\admin\appdata\local\lsass.exe | winlogon.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
Total events
855
Read events
845
Write events
10
Delete events
0
Modification events
| (PID) Process: | (1420) winlogon.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (1420) winlogon.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (1420) winlogon.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (1420) winlogon.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (2432) lsass.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | pcterat |
Value: "C:\Users\admin\appdata\local\lsass.exe" | |||
| (PID) Process: | (2432) lsass.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | pcterat |
Value: "C:\Users\admin\appdata\local\lsass.exe" | |||
Executable files
1
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1420 | winlogon.exe | C:\users\admin\appdata\local\lsass.exe | executable | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
2
DNS requests
0
Threats
0
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
— | — | 192.168.20.128:80 | — | — | — | unknown |
DNS requests
Threats
Process | Message |
|---|---|
winlogon.exe | BILGE:TONYUKUK:BEN:ÖZÜM:TABGAC:ILINGE:KILINDIM:TÜRK:BODUNU:TABGACKA:KÖRÜK:ERTI |
lsass.exe | BILGE:TONYUKUK:BEN:ÖZÜM:TABGAC:ILINGE:KILINDIM:TÜRK:BODUNU:TABGACKA:KÖRÜK:ERTI |