Analysis
- max time kernel
152s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system - submitted
06/10/2023, 12:56
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
fdecf68472f480ac2e63749790abe7ef.exe
Resource
win7-20230831-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
fdecf68472f480ac2e63749790abe7ef.exe
Resource
win10v2004-20230915-en
windows10-2004-x64
11 signatures
150 seconds
General
- Target fdecf68472f480ac2e63749790abe7ef.exe
- Size 293KB
- Sample231006-p6b63sbf6s
- SHA256 bd6bd7cf8acf51a6cb03c0717559ee431e1549e504d4ed16d3fbbaea55803e28
- MD5 fdecf68472f480ac2e63749790abe7ef
- SHA1 13a7fefa92baf71db4c3e301de967dbe8fe1b91b
- SHA512 328320451442744984edcfffa6cc6c33e4b6e00a8e4dcce107d9eb12ed3fd2131c0d57313010a64e9d14a3f1dc052a392329d0d4365ea174ed04f4c0beedbbc3
- SSDEEP 3072:ZQkRnkRV6BM887MZQNx2QurmGoOO5yEyXfhpk5hb+ot:Z5+RIM88oQP2QK1VEwfhWhqo
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Botnet
-
up3
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 1828 iitbiwt 3452 iitbiwt - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4660 set thread context of 1632 4660 fdecf68472f480ac2e63749790abe7ef.exe 84 PID 1828 set thread context of 3452 1828 iitbiwt 96 - 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 iitbiwt Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fdecf68472f480ac2e63749790abe7ef.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fdecf68472f480ac2e63749790abe7ef.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fdecf68472f480ac2e63749790abe7ef.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI iitbiwt Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI iitbiwt - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1632 fdecf68472f480ac2e63749790abe7ef.exe 1632 fdecf68472f480ac2e63749790abe7ef.exe 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found 3116 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3116 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 1632 fdecf68472f480ac2e63749790abe7ef.exe 3452 iitbiwt - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 3116 Process not Found Token: SeCreatePagefilePrivilege 3116 Process not Found - Suspicious use of UnmapMainImage 1 IoCs
pid Process 3116 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4660 wrote to memory of 1632 4660 fdecf68472f480ac2e63749790abe7ef.exe 84 PID 4660 wrote to memory of 1632 4660 fdecf68472f480ac2e63749790abe7ef.exe 84 PID 4660 wrote to memory of 1632 4660 fdecf68472f480ac2e63749790abe7ef.exe 84 PID 4660 wrote to memory of 1632 4660 fdecf68472f480ac2e63749790abe7ef.exe 84 PID 4660 wrote to memory of 1632 4660 fdecf68472f480ac2e63749790abe7ef.exe 84 PID 4660 wrote to memory of 1632 4660 fdecf68472f480ac2e63749790abe7ef.exe 84 PID 1828 wrote to memory of 3452 1828 iitbiwt 96 PID 1828 wrote to memory of 3452 1828 iitbiwt 96 PID 1828 wrote to memory of 3452 1828 iitbiwt 96 PID 1828 wrote to memory of 3452 1828 iitbiwt 96 PID 1828 wrote to memory of 3452 1828 iitbiwt 96 PID 1828 wrote to memory of 3452 1828 iitbiwt 96 - 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\fdecf68472f480ac2e63749790abe7ef.exe"C:\Users\Admin\AppData\Local\Temp\fdecf68472f480ac2e63749790abe7ef.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4660 -
C:\Users\Admin\AppData\Local\Temp\fdecf68472f480ac2e63749790abe7ef.exe"C:\Users\Admin\AppData\Local\Temp\fdecf68472f480ac2e63749790abe7ef.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1632
-
-
C:\Users\Admin\AppData\Roaming\iitbiwtC:\Users\Admin\AppData\Roaming\iitbiwt1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1828 -
C:\Users\Admin\AppData\Roaming\iitbiwtC:\Users\Admin\AppData\Roaming\iitbiwt2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3452
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\iitbiwt
- Size 293KB
- SHA256 bd6bd7cf8acf51a6cb03c0717559ee431e1549e504d4ed16d3fbbaea55803e28
- MD5 fdecf68472f480ac2e63749790abe7ef
- SHA1 13a7fefa92baf71db4c3e301de967dbe8fe1b91b
- SHA512 328320451442744984edcfffa6cc6c33e4b6e00a8e4dcce107d9eb12ed3fd2131c0d57313010a64e9d14a3f1dc052a392329d0d4365ea174ed04f4c0beedbbc3
- SSDEEP 3072:ZQkRnkRV6BM887MZQNx2QurmGoOO5yEyXfhpk5hb+ot:Z5+RIM88oQP2QK1VEwfhWhqo
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\iitbiwt
- Size 293KB
- SHA256 bd6bd7cf8acf51a6cb03c0717559ee431e1549e504d4ed16d3fbbaea55803e28
- MD5 fdecf68472f480ac2e63749790abe7ef
- SHA1 13a7fefa92baf71db4c3e301de967dbe8fe1b91b
- SHA512 328320451442744984edcfffa6cc6c33e4b6e00a8e4dcce107d9eb12ed3fd2131c0d57313010a64e9d14a3f1dc052a392329d0d4365ea174ed04f4c0beedbbc3
- SSDEEP 3072:ZQkRnkRV6BM887MZQNx2QurmGoOO5yEyXfhpk5hb+ot:Z5+RIM88oQP2QK1VEwfhWhqo
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\iitbiwt
- Size 293KB
- SHA256 bd6bd7cf8acf51a6cb03c0717559ee431e1549e504d4ed16d3fbbaea55803e28
- MD5 fdecf68472f480ac2e63749790abe7ef
- SHA1 13a7fefa92baf71db4c3e301de967dbe8fe1b91b
- SHA512 328320451442744984edcfffa6cc6c33e4b6e00a8e4dcce107d9eb12ed3fd2131c0d57313010a64e9d14a3f1dc052a392329d0d4365ea174ed04f4c0beedbbc3
- SSDEEP 3072:ZQkRnkRV6BM887MZQNx2QurmGoOO5yEyXfhpk5hb+ot:Z5+RIM88oQP2QK1VEwfhWhqo
- MD5 SHA1 SHA512 SSDEEP