Analysis
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max time kernel
120s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
12-10-2023 01:23
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe
Resource
win7-20230831-en
windows7-x64
14 signatures
150 seconds
Behavioral task
behavioral2
Sample
f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe
Resource
win10v2004-20230915-en
windows10-2004-x64
12 signatures
150 seconds
General
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Target
f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe
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Size
321KB
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MD5
5cff40f577549d49fa9c2e2bbdedeecd
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SHA1
836c2f689fde566efd6994a48aff4259e6f6a7eb
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SHA256
f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52
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SHA512
90afff56069cf39b44d6a6ad7bc92d317716a7e620075762f20915bc74085bf2a3d1be73d98e22df9ccf7400b6418e30b9bd7590d3fa1631fdb8e3932fe1c08d
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SSDEEP
6144:vV7th/mkLUNBOjxpYQLfbyuKUG6dda4N4:vpj+kLUnOjxpXLfbgGvP
Score
10/10
Malware Config
Extracted
Family
smokeloader
Botnet
up4
Extracted
Family
smokeloader
Version
2020
C2
http://host-file-file0.com/
http://file-file-file1.com/
rc4.i32
rc4.i32
Signatures
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Modifies Installed Components in the registry 2 TTPs 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Active Setup\Installed Components explorer.exe -
Deletes itself 1 IoCs
pid Process 1348 Process not Found -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2472 set thread context of 1728 2472 f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe 28 -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_Classes\Local Settings explorer.exe Key created \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1728 f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe 1728 f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found 1348 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 1348 Process not Found 2712 explorer.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1728 f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeShutdownPrivilege 2712 explorer.exe Token: SeShutdownPrivilege 2712 explorer.exe Token: SeShutdownPrivilege 2712 explorer.exe Token: SeShutdownPrivilege 2712 explorer.exe Token: SeShutdownPrivilege 2712 explorer.exe Token: SeShutdownPrivilege 2712 explorer.exe Token: SeShutdownPrivilege 2712 explorer.exe Token: SeShutdownPrivilege 2712 explorer.exe Token: SeShutdownPrivilege 2712 explorer.exe Token: SeShutdownPrivilege 2712 explorer.exe Token: SeShutdownPrivilege 2712 explorer.exe Token: SeShutdownPrivilege 2712 explorer.exe -
Suspicious use of FindShellTrayWindow 28 IoCs
pid Process 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe -
Suspicious use of SendNotifyMessage 18 IoCs
pid Process 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe 2712 explorer.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2472 wrote to memory of 1728 2472 f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe 28 PID 2472 wrote to memory of 1728 2472 f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe 28 PID 2472 wrote to memory of 1728 2472 f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe 28 PID 2472 wrote to memory of 1728 2472 f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe 28 PID 2472 wrote to memory of 1728 2472 f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe 28 PID 2472 wrote to memory of 1728 2472 f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe 28 PID 2472 wrote to memory of 1728 2472 f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe 28 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe"C:\Users\Admin\AppData\Local\Temp\f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2472 -
C:\Users\Admin\AppData\Local\Temp\f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe"C:\Users\Admin\AppData\Local\Temp\f22c85988b5f9c2c58d4f0cdd3c5c5d4aa807d196a9e712b8880e46d9586fb52.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1728
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C:\Windows\explorer.exeexplorer.exe1⤵
- Modifies Installed Components in the registry
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2712