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Analysis
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max time kernel
300s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
03/09/2023, 21:56
Static task
static1
Behavioral task
behavioral1
Sample
2d90e4d6aabf27b3e3babbb6846ed261f650f885858be57a2def6a5e361071b7.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
2d90e4d6aabf27b3e3babbb6846ed261f650f885858be57a2def6a5e361071b7.exe
Resource
win10-20230831-en
General
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Target
2d90e4d6aabf27b3e3babbb6846ed261f650f885858be57a2def6a5e361071b7.exe
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Size
281KB
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MD5
4dc922beacbbd78690a084e451fe420e
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SHA1
60dad60b5c7302b4e3710178adc3e3733a969feb
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SHA256
2d90e4d6aabf27b3e3babbb6846ed261f650f885858be57a2def6a5e361071b7
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SHA512
9f794fecd0557ca9aad0eedf6c463620657c64033478fa518e195ddfa0d0ae17c91bf3857e362309ecf8ffba54a74b1107d59b16c75cca686a65987000363a81
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SSDEEP
3072:/aD8DiZ7URsbW4FC0iK/qEB21CgE8bNUT51RMPU5Lt0Fyeymx:yP7w3Xk0CgEcNU5fMc54yey
Malware Config
Extracted
smokeloader
pub5
Extracted
smokeloader
2022
http://taibi.at/tmp/
http://01stroy.ru/tmp/
http://mal-net.com/tmp/
http://gromograd.ru/tmp/
http://kingpirate.ru/tmp/
Signatures
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Deletes itself 1 IoCs
pid Process 1264 Process not Found -
Executes dropped EXE 1 IoCs
pid Process 2568 crtwejb -
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 2d90e4d6aabf27b3e3babbb6846ed261f650f885858be57a2def6a5e361071b7.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 2d90e4d6aabf27b3e3babbb6846ed261f650f885858be57a2def6a5e361071b7.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI crtwejb Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI crtwejb Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI crtwejb Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 2d90e4d6aabf27b3e3babbb6846ed261f650f885858be57a2def6a5e361071b7.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2988 2d90e4d6aabf27b3e3babbb6846ed261f650f885858be57a2def6a5e361071b7.exe 2988 2d90e4d6aabf27b3e3babbb6846ed261f650f885858be57a2def6a5e361071b7.exe 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found 1264 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1264 Process not Found -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2988 2d90e4d6aabf27b3e3babbb6846ed261f650f885858be57a2def6a5e361071b7.exe 2568 crtwejb -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeShutdownPrivilege 1264 Process not Found -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2740 wrote to memory of 2568 2740 taskeng.exe 31 PID 2740 wrote to memory of 2568 2740 taskeng.exe 31 PID 2740 wrote to memory of 2568 2740 taskeng.exe 31 PID 2740 wrote to memory of 2568 2740 taskeng.exe 31 -
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\2d90e4d6aabf27b3e3babbb6846ed261f650f885858be57a2def6a5e361071b7.exe"C:\Users\Admin\AppData\Local\Temp\2d90e4d6aabf27b3e3babbb6846ed261f650f885858be57a2def6a5e361071b7.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2988
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C:\Windows\system32\taskeng.exetaskeng.exe {5A132C27-9376-4B8C-8B17-AE803787AC9C} S-1-5-21-3513876443-2771975297-1923446376-1000:GPFFWLPI\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:2740 -
C:\Users\Admin\AppData\Roaming\crtwejbC:\Users\Admin\AppData\Roaming\crtwejb2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2568
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
281KB
MD54dc922beacbbd78690a084e451fe420e
SHA160dad60b5c7302b4e3710178adc3e3733a969feb
SHA2562d90e4d6aabf27b3e3babbb6846ed261f650f885858be57a2def6a5e361071b7
SHA5129f794fecd0557ca9aad0eedf6c463620657c64033478fa518e195ddfa0d0ae17c91bf3857e362309ecf8ffba54a74b1107d59b16c75cca686a65987000363a81
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Filesize
281KB
MD54dc922beacbbd78690a084e451fe420e
SHA160dad60b5c7302b4e3710178adc3e3733a969feb
SHA2562d90e4d6aabf27b3e3babbb6846ed261f650f885858be57a2def6a5e361071b7
SHA5129f794fecd0557ca9aad0eedf6c463620657c64033478fa518e195ddfa0d0ae17c91bf3857e362309ecf8ffba54a74b1107d59b16c75cca686a65987000363a81