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Analysis
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max time kernel
150s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
11/04/2023, 01:38
Static task
static1
Behavioral task
behavioral1
Sample
a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe
Resource
win10v2004-20230220-en
General
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Target
a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe
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Size
202KB
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MD5
dc2b29d266ff6b61177109be6c45a9e8
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SHA1
9fa94c33eea1ba317933ec84d338e176843748f9
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SHA256
a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d
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SHA512
17381dacbe21b5517026b348835c477a1399c6cd1bf2d29d9d91bc77cf318f1166e46bda9ea6273607dc33cfe9c765afb4151a271e2c663fa8f6779c4062d3e4
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SSDEEP
3072:YRm4owMuuJHNqlzWrJoIRHA96Aplm5OmDR:IjQlZOzspghB
Malware Config
Extracted
smokeloader
pub2
Extracted
smokeloader
2020
http://host-file-host6.com/
http://host-host-file8.com/
Signatures
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Executes dropped EXE 2 IoCs
pid Process 3352 wsridfh 2916 wsridfh -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4456 set thread context of 4444 4456 a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe 85 PID 3352 set thread context of 2916 3352 wsridfh 94 -
Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wsridfh Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wsridfh Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wsridfh Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4444 a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe 4444 a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found 3220 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3220 Process not Found -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 4444 a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe 2916 wsridfh -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 3220 Process not Found Token: SeCreatePagefilePrivilege 3220 Process not Found -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4456 wrote to memory of 4444 4456 a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe 85 PID 4456 wrote to memory of 4444 4456 a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe 85 PID 4456 wrote to memory of 4444 4456 a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe 85 PID 4456 wrote to memory of 4444 4456 a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe 85 PID 4456 wrote to memory of 4444 4456 a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe 85 PID 4456 wrote to memory of 4444 4456 a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe 85 PID 3352 wrote to memory of 2916 3352 wsridfh 94 PID 3352 wrote to memory of 2916 3352 wsridfh 94 PID 3352 wrote to memory of 2916 3352 wsridfh 94 PID 3352 wrote to memory of 2916 3352 wsridfh 94 PID 3352 wrote to memory of 2916 3352 wsridfh 94 PID 3352 wrote to memory of 2916 3352 wsridfh 94 -
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\a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe"C:\Users\Admin\AppData\Local\Temp\a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4456 -
C:\Users\Admin\AppData\Local\Temp\a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe"C:\Users\Admin\AppData\Local\Temp\a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4444
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C:\Users\Admin\AppData\Roaming\wsridfhC:\Users\Admin\AppData\Roaming\wsridfh1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3352 -
C:\Users\Admin\AppData\Roaming\wsridfhC:\Users\Admin\AppData\Roaming\wsridfh2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2916
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
202KB
MD5dc2b29d266ff6b61177109be6c45a9e8
SHA19fa94c33eea1ba317933ec84d338e176843748f9
SHA256a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d
SHA51217381dacbe21b5517026b348835c477a1399c6cd1bf2d29d9d91bc77cf318f1166e46bda9ea6273607dc33cfe9c765afb4151a271e2c663fa8f6779c4062d3e4
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Filesize
202KB
MD5dc2b29d266ff6b61177109be6c45a9e8
SHA19fa94c33eea1ba317933ec84d338e176843748f9
SHA256a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d
SHA51217381dacbe21b5517026b348835c477a1399c6cd1bf2d29d9d91bc77cf318f1166e46bda9ea6273607dc33cfe9c765afb4151a271e2c663fa8f6779c4062d3e4
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Filesize
202KB
MD5dc2b29d266ff6b61177109be6c45a9e8
SHA19fa94c33eea1ba317933ec84d338e176843748f9
SHA256a7d879db0eb780f7c985e88537921f05e942739af8bb1a4903c96890d52f860d
SHA51217381dacbe21b5517026b348835c477a1399c6cd1bf2d29d9d91bc77cf318f1166e46bda9ea6273607dc33cfe9c765afb4151a271e2c663fa8f6779c4062d3e4