Analysis
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max time kernel
118s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
18-09-2023 18:10
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe
Resource
win7-20230831-en
windows7-x64
14 signatures
150 seconds
Behavioral task
behavioral2
Sample
JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe
Resource
win10v2004-20230915-en
windows10-2004-x64
7 signatures
150 seconds
General
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Target
JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe
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Size
215KB
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MD5
fc202464bc132aa56316b7a9657e69cc
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SHA1
6ac887f15aaa8921fa81d998be2e0e7199ace88d
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SHA256
940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af
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SHA512
3ff86d86033e78113c830f0cf3471ad7a55e4a5c849e6f675790402c059acd93ca2a62059479aadf41047e4bb38410826c5ec5bd1e47d165e6dfbea0d29a7d83
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SSDEEP
3072:f9AXvYaj9eLa3PK+167ffubzbSHwSUlOeKAxCMW+jtJ05T6sTtel:OvYU9eLwi+16rfEzeQlOeKLMJju6sT4
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-1-5-21-3849525425-30183055-657688904-1000\Software\Microsoft\Active Setup\Installed Components explorer.exe -
Deletes itself 1 IoCs
pid Process 1276 Process not Found -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3024 set thread context of 3036 3024 JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.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 enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_Classes\Local Settings explorer.exe Key created \REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-3849525425-30183055-657688904-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3036 JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe 3036 JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found 1276 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 1276 Process not Found 2640 explorer.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3036 JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe -
Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeShutdownPrivilege 2640 explorer.exe Token: SeShutdownPrivilege 2640 explorer.exe Token: SeShutdownPrivilege 2640 explorer.exe Token: SeShutdownPrivilege 2640 explorer.exe Token: SeShutdownPrivilege 2640 explorer.exe Token: SeShutdownPrivilege 2640 explorer.exe Token: SeShutdownPrivilege 2640 explorer.exe Token: SeShutdownPrivilege 2640 explorer.exe Token: SeShutdownPrivilege 2640 explorer.exe Token: SeShutdownPrivilege 2640 explorer.exe Token: SeShutdownPrivilege 2640 explorer.exe Token: SeShutdownPrivilege 2640 explorer.exe -
Suspicious use of FindShellTrayWindow 29 IoCs
pid Process 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe -
Suspicious use of SendNotifyMessage 19 IoCs
pid Process 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe 2640 explorer.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 3024 wrote to memory of 3036 3024 JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe 28 PID 3024 wrote to memory of 3036 3024 JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe 28 PID 3024 wrote to memory of 3036 3024 JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe 28 PID 3024 wrote to memory of 3036 3024 JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe 28 PID 3024 wrote to memory of 3036 3024 JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe 28 PID 3024 wrote to memory of 3036 3024 JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe 28 PID 3024 wrote to memory of 3036 3024 JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.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\JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe"C:\Users\Admin\AppData\Local\Temp\JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3024 -
C:\Users\Admin\AppData\Local\Temp\JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe"C:\Users\Admin\AppData\Local\Temp\JC_940fd00775d529943dbe7b2bc085f4b04ffd87e69b77b8725932418c272237af.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3036
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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:2640