Analysis
- max time kernel
150s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
01/06/2023, 14:58
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
05082899.exe
Resource
win7-20230220-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
05082899.exe
Resource
win10v2004-20230220-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 05082899.exe
- Size 207KB
- Sample230601-sb7ahsfb7z
- SHA256 1c0ff8e4f1626bdf9e8570c7dab4fd138ab71f3ab4bd9feb9e544a902b142d62
- MD5 7d4c93a0f0d37c3485d6b341d96b79d5
- SHA1 c5eb0fbb8526bb2d63c5893cd4b3930e12c5a642
- SHA512 186e49b9c0e8aee3c05778bf48c2af27d14b68e3e46346c2ddd27be8211efda408716fb43dea2931e9f20107d82780df060659b048c467c95fd8ffdee12e30a7
- SSDEEP 3072:gXjWv19ZaUtsa5Wf+erpaKL6CGJp8asLRgW3NUBsPYr0e7bEDD5bwDK0:UIPs9+erpaKpGJsgy0rPbElw
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Botnet
-
pub1
Extracted
Family
-
smokeloader
Version
-
2020
C2
-
http://host-file-host6.com/
-
http://host-host-file8.com/
rc4.i32
rc4.i32
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 4612 tebbvui 4788 tebbvui - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4396 set thread context of 2800 4396 05082899.exe 82 PID 4612 set thread context of 4788 4612 tebbvui 86 - Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 05082899.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI tebbvui Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI tebbvui Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI tebbvui Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 05082899.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 05082899.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2800 05082899.exe 2800 05082899.exe 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found 660 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 660 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2800 05082899.exe 4788 tebbvui - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 660 Process not Found Token: SeCreatePagefilePrivilege 660 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4396 wrote to memory of 2800 4396 05082899.exe 82 PID 4396 wrote to memory of 2800 4396 05082899.exe 82 PID 4396 wrote to memory of 2800 4396 05082899.exe 82 PID 4396 wrote to memory of 2800 4396 05082899.exe 82 PID 4396 wrote to memory of 2800 4396 05082899.exe 82 PID 4396 wrote to memory of 2800 4396 05082899.exe 82 PID 4612 wrote to memory of 4788 4612 tebbvui 86 PID 4612 wrote to memory of 4788 4612 tebbvui 86 PID 4612 wrote to memory of 4788 4612 tebbvui 86 PID 4612 wrote to memory of 4788 4612 tebbvui 86 PID 4612 wrote to memory of 4788 4612 tebbvui 86 PID 4612 wrote to memory of 4788 4612 tebbvui 86 - 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
-
C:\Users\Admin\AppData\Local\Temp\05082899.exe"C:\Users\Admin\AppData\Local\Temp\05082899.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4396 -
C:\Users\Admin\AppData\Local\Temp\05082899.exe"C:\Users\Admin\AppData\Local\Temp\05082899.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2800
-
-
C:\Users\Admin\AppData\Roaming\tebbvuiC:\Users\Admin\AppData\Roaming\tebbvui1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4612 -
C:\Users\Admin\AppData\Roaming\tebbvuiC:\Users\Admin\AppData\Roaming\tebbvui2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:4788
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\tebbvui
- Size 207KB
- SHA256 1c0ff8e4f1626bdf9e8570c7dab4fd138ab71f3ab4bd9feb9e544a902b142d62
- MD5 7d4c93a0f0d37c3485d6b341d96b79d5
- SHA1 c5eb0fbb8526bb2d63c5893cd4b3930e12c5a642
- SHA512 186e49b9c0e8aee3c05778bf48c2af27d14b68e3e46346c2ddd27be8211efda408716fb43dea2931e9f20107d82780df060659b048c467c95fd8ffdee12e30a7
- SSDEEP 3072:gXjWv19ZaUtsa5Wf+erpaKL6CGJp8asLRgW3NUBsPYr0e7bEDD5bwDK0:UIPs9+erpaKpGJsgy0rPbElw
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\tebbvui
- Size 207KB
- SHA256 1c0ff8e4f1626bdf9e8570c7dab4fd138ab71f3ab4bd9feb9e544a902b142d62
- MD5 7d4c93a0f0d37c3485d6b341d96b79d5
- SHA1 c5eb0fbb8526bb2d63c5893cd4b3930e12c5a642
- SHA512 186e49b9c0e8aee3c05778bf48c2af27d14b68e3e46346c2ddd27be8211efda408716fb43dea2931e9f20107d82780df060659b048c467c95fd8ffdee12e30a7
- SSDEEP 3072:gXjWv19ZaUtsa5Wf+erpaKL6CGJp8asLRgW3NUBsPYr0e7bEDD5bwDK0:UIPs9+erpaKpGJsgy0rPbElw
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\tebbvui
- Size 207KB
- SHA256 1c0ff8e4f1626bdf9e8570c7dab4fd138ab71f3ab4bd9feb9e544a902b142d62
- MD5 7d4c93a0f0d37c3485d6b341d96b79d5
- SHA1 c5eb0fbb8526bb2d63c5893cd4b3930e12c5a642
- SHA512 186e49b9c0e8aee3c05778bf48c2af27d14b68e3e46346c2ddd27be8211efda408716fb43dea2931e9f20107d82780df060659b048c467c95fd8ffdee12e30a7
- SSDEEP 3072:gXjWv19ZaUtsa5Wf+erpaKL6CGJp8asLRgW3NUBsPYr0e7bEDD5bwDK0:UIPs9+erpaKpGJsgy0rPbElw
- MD5 SHA1 SHA512 SSDEEP