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Analysis
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max time kernel
150s -
max time network
136s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
20/12/2022, 14:18
Behavioral task
behavioral1
Sample
a28ede8afeb2ac43b84985c279c94c25d001d00a035b82eb2ab1a019c5a6faa8.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
a28ede8afeb2ac43b84985c279c94c25d001d00a035b82eb2ab1a019c5a6faa8.exe
Resource
win10v2004-20221111-en
General
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Target
a28ede8afeb2ac43b84985c279c94c25d001d00a035b82eb2ab1a019c5a6faa8.exe
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Size
30KB
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MD5
e7c7dd1609c0ae7d9948db9f5cecb2ab
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SHA1
f7d951dee4dd309a299f583afbab259d11221a28
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SHA256
a28ede8afeb2ac43b84985c279c94c25d001d00a035b82eb2ab1a019c5a6faa8
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SHA512
5aa6b52c049ddb96b491e8f9c1657bf992df0cfc7075859e4d91eda3e027d64265ca753b96737717546d7b65c41c4f6a1f9938faa8b0372cf8ec7725e60ce2fd
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SSDEEP
768:S172poBiLfK2Ss/2q2P66B9QeytQZAERS:O2mBibK4/2PB9Qr2S
Malware Config
Signatures
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Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/5108-132-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/5108-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/files/0x000800000002312e-140.dat family_smokeloader behavioral2/files/0x000800000002312e-141.dat family_smokeloader behavioral2/memory/2464-142-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2464-143-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader -
SmokeLoader
Modular backdoor trojan in use since 2014.
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Executes dropped EXE 1 IoCs
pid Process 2464 ejwcset -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 explorer.exe Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 explorer.exe Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 explorer.exe -
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 a28ede8afeb2ac43b84985c279c94c25d001d00a035b82eb2ab1a019c5a6faa8.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a28ede8afeb2ac43b84985c279c94c25d001d00a035b82eb2ab1a019c5a6faa8.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a28ede8afeb2ac43b84985c279c94c25d001d00a035b82eb2ab1a019c5a6faa8.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI ejwcset Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI ejwcset Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI ejwcset -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5108 a28ede8afeb2ac43b84985c279c94c25d001d00a035b82eb2ab1a019c5a6faa8.exe 5108 a28ede8afeb2ac43b84985c279c94c25d001d00a035b82eb2ab1a019c5a6faa8.exe 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2688 Process not Found -
Suspicious behavior: MapViewOfSection 6 IoCs
pid Process 5108 a28ede8afeb2ac43b84985c279c94c25d001d00a035b82eb2ab1a019c5a6faa8.exe 2688 Process not Found 2688 Process not Found 2688 Process not Found 2688 Process not Found 2464 ejwcset -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2688 wrote to memory of 4292 2688 Process not Found 87 PID 2688 wrote to memory of 4292 2688 Process not Found 87 PID 2688 wrote to memory of 4292 2688 Process not Found 87 PID 2688 wrote to memory of 4292 2688 Process not Found 87 PID 2688 wrote to memory of 740 2688 Process not Found 88 PID 2688 wrote to memory of 740 2688 Process not Found 88 PID 2688 wrote to memory of 740 2688 Process not Found 88 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 explorer.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 explorer.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a28ede8afeb2ac43b84985c279c94c25d001d00a035b82eb2ab1a019c5a6faa8.exe"C:\Users\Admin\AppData\Local\Temp\a28ede8afeb2ac43b84985c279c94c25d001d00a035b82eb2ab1a019c5a6faa8.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:5108
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
- Accesses Microsoft Outlook profiles
- outlook_office_path
- outlook_win_path
PID:4292
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵PID:740
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C:\Users\Admin\AppData\Roaming\ejwcsetC:\Users\Admin\AppData\Roaming\ejwcset1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2464
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
30KB
MD5e7c7dd1609c0ae7d9948db9f5cecb2ab
SHA1f7d951dee4dd309a299f583afbab259d11221a28
SHA256a28ede8afeb2ac43b84985c279c94c25d001d00a035b82eb2ab1a019c5a6faa8
SHA5125aa6b52c049ddb96b491e8f9c1657bf992df0cfc7075859e4d91eda3e027d64265ca753b96737717546d7b65c41c4f6a1f9938faa8b0372cf8ec7725e60ce2fd
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Filesize
30KB
MD5e7c7dd1609c0ae7d9948db9f5cecb2ab
SHA1f7d951dee4dd309a299f583afbab259d11221a28
SHA256a28ede8afeb2ac43b84985c279c94c25d001d00a035b82eb2ab1a019c5a6faa8
SHA5125aa6b52c049ddb96b491e8f9c1657bf992df0cfc7075859e4d91eda3e027d64265ca753b96737717546d7b65c41c4f6a1f9938faa8b0372cf8ec7725e60ce2fd