Analysis
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max time kernel
19s -
max time network
34s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
23-11-2022 12:38
Static task
static1
Behavioral task
behavioral1
Sample
fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
Resource
win10v2004-20221111-en
General
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Target
fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
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Size
103KB
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MD5
c379d1c79e6de48bd1b0e5568c1cf485
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SHA1
12fe4832b7a14ab21a314df576ec35fa8210f43d
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SHA256
fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4
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SHA512
b3b1b1203e173782d185738964991a7fbb6e7133900e1fed6990ef73c912ee1e9f7844089f418b6e3d9659495cb16c58e4cc3a27f3c656b46a75a15aaefd6af5
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SSDEEP
3072:zX3ujCPlXF/mIUJhuyTwiRSQXmNINh5B4:z5lXB+m0G
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-41873714\\v2873941.exe" fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\v18371931 = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-41873714\\v2873941.exe" fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe -
Drops desktop.ini file(s) 1 IoCs
Processes:
fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exedescription ioc process File created C:\RECYCLER\S-1-5-21-0243556031-888888379-781863308-41873714\Desktop.ini fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe -
Modifies WinLogon 2 TTPs 1 IoCs
Processes:
fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Taskman = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-41873714\\v2873941.exe" fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exedescription pid process target process PID 1268 set thread context of 1740 1268 fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exefb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exepid process 1268 fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe 1268 fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe 1740 fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exefb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exedescription pid process target process PID 1268 wrote to memory of 1740 1268 fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe PID 1268 wrote to memory of 1740 1268 fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe PID 1268 wrote to memory of 1740 1268 fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe PID 1268 wrote to memory of 1740 1268 fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe PID 1268 wrote to memory of 1740 1268 fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe PID 1268 wrote to memory of 1740 1268 fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe PID 1268 wrote to memory of 1740 1268 fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe PID 1268 wrote to memory of 1740 1268 fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe PID 1268 wrote to memory of 1740 1268 fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe PID 1740 wrote to memory of 1204 1740 fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe Explorer.EXE PID 1740 wrote to memory of 1204 1740 fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe Explorer.EXE PID 1740 wrote to memory of 1204 1740 fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe Explorer.EXE
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1204
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C:\Users\Admin\AppData\Local\Temp\fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe"C:\Users\Admin\AppData\Local\Temp\fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1268 -
C:\Users\Admin\AppData\Local\Temp\fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe"C:\Users\Admin\AppData\Local\Temp\fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.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:1740
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/1740-54-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB
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memory/1740-55-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB
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memory/1740-57-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB
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memory/1740-58-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB
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memory/1740-59-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB
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memory/1740-60-0x0000000000401920-mapping.dmp
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memory/1740-62-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB