Analysis
-
max time kernel
242s -
max time network
336s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
25-11-2022 07:19
Static task
static1
Behavioral task
behavioral1
Sample
a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe
Resource
win10v2004-20220812-en
General
-
Target
a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe
-
Size
217KB
-
MD5
e0df9f70ca00e37890f7e40fccfe9ea2
-
SHA1
1564235ebf363f9a3e070345deee3f57ff11ca69
-
SHA256
a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad
-
SHA512
4994c3b33e4f93b31e2bc3acab96e03dd146ef037029643c105b94008d9ac5d8770a9cecc536b3fe51976dc778ab7a74570749652409da5a925b48ab93773ad8
-
SSDEEP
3072:kZdTTTcoPU+O2JKLloghCS2uSJ9SzHMOy8UUMhWXsLd2:sdTPNP9TJKLfCSBSNhWXs0
Malware Config
Signatures
-
Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-84112131\\13gaa17r8.exe" a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\23gaa1q8 = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-84112131\\13gaa17r8.exe" a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe -
Drops desktop.ini file(s) 1 IoCs
Processes:
a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exedescription ioc process File created C:\RECYCLER\S-1-5-21-0243556031-888888379-781862338-84112131\Desktop.ini a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe -
Modifies WinLogon 2 TTPs 1 IoCs
Processes:
a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Taskman = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-84112131\\13gaa17r8.exe" a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exedescription pid process target process PID 1464 set thread context of 1808 1464 a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exea4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exepid process 1464 a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe 1464 a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe 1808 a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exea4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exedescription pid process target process PID 1464 wrote to memory of 1808 1464 a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe PID 1464 wrote to memory of 1808 1464 a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe PID 1464 wrote to memory of 1808 1464 a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe PID 1464 wrote to memory of 1808 1464 a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe PID 1464 wrote to memory of 1808 1464 a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe PID 1464 wrote to memory of 1808 1464 a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe PID 1464 wrote to memory of 1808 1464 a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe PID 1464 wrote to memory of 1808 1464 a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe PID 1464 wrote to memory of 1808 1464 a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe PID 1808 wrote to memory of 1236 1808 a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe Explorer.EXE PID 1808 wrote to memory of 1236 1808 a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe Explorer.EXE PID 1808 wrote to memory of 1236 1808 a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe Explorer.EXE
Processes
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1236
-
C:\Users\Admin\AppData\Local\Temp\a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe"C:\Users\Admin\AppData\Local\Temp\a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1464 -
C:\Users\Admin\AppData\Local\Temp\a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe"C:\Users\Admin\AppData\Local\Temp\a4c33306c96885a0fd361109abeb119dfb7184626de8b1212c29de6cea98c0ad.exe"3⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Drops desktop.ini file(s)
- Modifies WinLogon
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1808
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/1464-61-0x00000000001B0000-0x00000000001B3000-memory.dmpFilesize
12KB
-
memory/1808-54-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB
-
memory/1808-55-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB
-
memory/1808-57-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB
-
memory/1808-59-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB
-
memory/1808-58-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB
-
memory/1808-60-0x0000000000401920-mapping.dmp
-
memory/1808-63-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB