Analysis
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max time kernel
150s -
max time network
130s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
15/09/2023, 19:18
Static task
static1
Behavioral task
behavioral1
Sample
b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe
Resource
win10v2004-20230915-en
General
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Target
b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe
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Size
267KB
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MD5
12615c3c739e7fc3107920f4e1fcb8d0
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SHA1
de0175d2ecbe05ab09c7eef39e004b8ebde5797a
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SHA256
b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6
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SHA512
2dd36a7e290b95d75cc5a30b06b7f96d774f2f9aa226469e335752a9c238b79a85e4a388e7c022d4f9ced3c8bebf4b6bfe397941f82d79ca8a532122aa635966
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SSDEEP
3072:3n2ZCEpgvvqmADmz82rcAwIs+hPRGjk1J0Dntw1ZtHOINGSZoV:X2Z+vSmADmz82/tPRn1y+HcSZK
Malware Config
Extracted
smokeloader
pub1
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 568 rhejifr 4584 rhejifr -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4952 set thread context of 4520 4952 b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe 83 PID 568 set thread context of 4584 568 rhejifr 88 -
Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI rhejifr Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI rhejifr Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI rhejifr -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4520 b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe 4520 b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found 3180 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3180 Process not Found -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 4520 b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe 4584 rhejifr -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 3180 Process not Found Token: SeCreatePagefilePrivilege 3180 Process not Found -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4952 wrote to memory of 4520 4952 b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe 83 PID 4952 wrote to memory of 4520 4952 b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe 83 PID 4952 wrote to memory of 4520 4952 b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe 83 PID 4952 wrote to memory of 4520 4952 b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe 83 PID 4952 wrote to memory of 4520 4952 b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe 83 PID 4952 wrote to memory of 4520 4952 b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe 83 PID 568 wrote to memory of 4584 568 rhejifr 88 PID 568 wrote to memory of 4584 568 rhejifr 88 PID 568 wrote to memory of 4584 568 rhejifr 88 PID 568 wrote to memory of 4584 568 rhejifr 88 PID 568 wrote to memory of 4584 568 rhejifr 88 PID 568 wrote to memory of 4584 568 rhejifr 88 -
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\b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe"C:\Users\Admin\AppData\Local\Temp\b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4952 -
C:\Users\Admin\AppData\Local\Temp\b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe"C:\Users\Admin\AppData\Local\Temp\b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4520
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C:\Users\Admin\AppData\Roaming\rhejifrC:\Users\Admin\AppData\Roaming\rhejifr1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:568 -
C:\Users\Admin\AppData\Roaming\rhejifrC:\Users\Admin\AppData\Roaming\rhejifr2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:4584
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
267KB
MD512615c3c739e7fc3107920f4e1fcb8d0
SHA1de0175d2ecbe05ab09c7eef39e004b8ebde5797a
SHA256b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6
SHA5122dd36a7e290b95d75cc5a30b06b7f96d774f2f9aa226469e335752a9c238b79a85e4a388e7c022d4f9ced3c8bebf4b6bfe397941f82d79ca8a532122aa635966
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Filesize
267KB
MD512615c3c739e7fc3107920f4e1fcb8d0
SHA1de0175d2ecbe05ab09c7eef39e004b8ebde5797a
SHA256b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6
SHA5122dd36a7e290b95d75cc5a30b06b7f96d774f2f9aa226469e335752a9c238b79a85e4a388e7c022d4f9ced3c8bebf4b6bfe397941f82d79ca8a532122aa635966
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Filesize
267KB
MD512615c3c739e7fc3107920f4e1fcb8d0
SHA1de0175d2ecbe05ab09c7eef39e004b8ebde5797a
SHA256b706b0b48e67dced179a4775d67c6a0532c91d9d69274f214da622945a221fa6
SHA5122dd36a7e290b95d75cc5a30b06b7f96d774f2f9aa226469e335752a9c238b79a85e4a388e7c022d4f9ced3c8bebf4b6bfe397941f82d79ca8a532122aa635966