Analysis
-
max time kernel
300s -
max time network
280s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
18-04-2024 22:46
Static task
static1
Behavioral task
behavioral1
Sample
7504e9a4776b47f2efd082066eee2ac795fca4398d8ee85b6af6af217c0e583e.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
7504e9a4776b47f2efd082066eee2ac795fca4398d8ee85b6af6af217c0e583e.exe
Resource
win10-20240404-en
General
-
Target
7504e9a4776b47f2efd082066eee2ac795fca4398d8ee85b6af6af217c0e583e.exe
-
Size
319KB
-
MD5
b3316f86c6b6295b3f9fcb0a2a36803f
-
SHA1
2769a937f0b048446847c7baf741a96387555da4
-
SHA256
7504e9a4776b47f2efd082066eee2ac795fca4398d8ee85b6af6af217c0e583e
-
SHA512
6157eb3557b2ee26d59f057458d89feb12fd84d47166844bb42641888ec2ed96297c75d3dd4bca057f1257b7e1d527da59ffd78ad8e53c75a2bed4893caf4110
-
SSDEEP
3072:qf9l4yMA2hubsyO+xcyaBOxWU4pTQLlKWxp/UqFk1NZbvrKpftYVdVLb8U:qFl4yMAn8RU4VQhKwp/U9N9vrM6VL9
Malware Config
Extracted
smokeloader
pub1
Extracted
smokeloader
2022
http://trad-einmyus.com/index.php
http://tradein-myus.com/index.php
http://trade-inmyus.com/index.php
Signatures
-
SmokeLoader
Modular backdoor trojan in use since 2014.
-
Downloads MZ/PE file
-
Modifies Installed Components in the registry 2 TTPs 1 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Active Setup\Installed Components explorer.exe -
Deletes itself 1 IoCs
Processes:
pid process 1204 -
Executes dropped EXE 2 IoCs
Processes:
fhvfwtgE495.exepid process 2976 fhvfwtg 3060 E495.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
-
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
Processes:
E495.exedescription ioc process File opened for modification \??\PHYSICALDRIVE0 E495.exe -
Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
fhvfwtg7504e9a4776b47f2efd082066eee2ac795fca4398d8ee85b6af6af217c0e583e.exedescription ioc process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fhvfwtg Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fhvfwtg Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 7504e9a4776b47f2efd082066eee2ac795fca4398d8ee85b6af6af217c0e583e.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 7504e9a4776b47f2efd082066eee2ac795fca4398d8ee85b6af6af217c0e583e.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 7504e9a4776b47f2efd082066eee2ac795fca4398d8ee85b6af6af217c0e583e.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fhvfwtg -
Modifies registry class 5 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings explorer.exe Key created \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff explorer.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
7504e9a4776b47f2efd082066eee2ac795fca4398d8ee85b6af6af217c0e583e.exepid process 1772 7504e9a4776b47f2efd082066eee2ac795fca4398d8ee85b6af6af217c0e583e.exe 1772 7504e9a4776b47f2efd082066eee2ac795fca4398d8ee85b6af6af217c0e583e.exe 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 1204 -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
explorer.exepid process 2512 explorer.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
Processes:
7504e9a4776b47f2efd082066eee2ac795fca4398d8ee85b6af6af217c0e583e.exefhvfwtgpid process 1772 7504e9a4776b47f2efd082066eee2ac795fca4398d8ee85b6af6af217c0e583e.exe 2976 fhvfwtg -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
explorer.exedescription pid process Token: SeShutdownPrivilege 2512 explorer.exe Token: SeShutdownPrivilege 2512 explorer.exe Token: SeShutdownPrivilege 2512 explorer.exe Token: SeShutdownPrivilege 2512 explorer.exe Token: SeShutdownPrivilege 2512 explorer.exe Token: SeShutdownPrivilege 2512 explorer.exe Token: SeShutdownPrivilege 2512 explorer.exe Token: SeShutdownPrivilege 2512 explorer.exe Token: SeShutdownPrivilege 2512 explorer.exe Token: SeShutdownPrivilege 2512 explorer.exe Token: SeShutdownPrivilege 2512 explorer.exe Token: SeShutdownPrivilege 2512 explorer.exe -
Suspicious use of FindShellTrayWindow 32 IoCs
Processes:
explorer.exepid process 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe -
Suspicious use of SendNotifyMessage 23 IoCs
Processes:
explorer.exepid process 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe 2512 explorer.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
cmd.execmd.exetaskeng.exeexplorer.exedescription pid process target process PID 1204 wrote to memory of 3020 1204 cmd.exe PID 1204 wrote to memory of 3020 1204 cmd.exe PID 1204 wrote to memory of 3020 1204 cmd.exe PID 3020 wrote to memory of 2560 3020 cmd.exe reg.exe PID 3020 wrote to memory of 2560 3020 cmd.exe reg.exe PID 3020 wrote to memory of 2560 3020 cmd.exe reg.exe PID 1204 wrote to memory of 2336 1204 cmd.exe PID 1204 wrote to memory of 2336 1204 cmd.exe PID 1204 wrote to memory of 2336 1204 cmd.exe PID 2336 wrote to memory of 2172 2336 cmd.exe reg.exe PID 2336 wrote to memory of 2172 2336 cmd.exe reg.exe PID 2336 wrote to memory of 2172 2336 cmd.exe reg.exe PID 3056 wrote to memory of 2976 3056 taskeng.exe fhvfwtg PID 3056 wrote to memory of 2976 3056 taskeng.exe fhvfwtg PID 3056 wrote to memory of 2976 3056 taskeng.exe fhvfwtg PID 3056 wrote to memory of 2976 3056 taskeng.exe fhvfwtg PID 2512 wrote to memory of 3060 2512 explorer.exe E495.exe PID 2512 wrote to memory of 3060 2512 explorer.exe E495.exe PID 2512 wrote to memory of 3060 2512 explorer.exe E495.exe PID 2512 wrote to memory of 3060 2512 explorer.exe E495.exe -
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\7504e9a4776b47f2efd082066eee2ac795fca4398d8ee85b6af6af217c0e583e.exe"C:\Users\Admin\AppData\Local\Temp\7504e9a4776b47f2efd082066eee2ac795fca4398d8ee85b6af6af217c0e583e.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Windows\system32\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\642F.bat" "1⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\reg.exereg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 12⤵
-
C:\Windows\system32\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\D77C.bat" "1⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\reg.exereg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 12⤵
-
C:\Windows\explorer.exeexplorer.exe1⤵
- Modifies Installed Components in the registry
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\E495.exeC:\Users\Admin\AppData\Local\Temp\E495.exe2⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
-
C:\Windows\system32\taskeng.exetaskeng.exe {F541D737-0F44-4647-88AD-DE86D8433F53} S-1-5-21-2248906074-2862704502-246302768-1000:GHPZRGFC\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\fhvfwtgC:\Users\Admin\AppData\Roaming\fhvfwtg2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
Network
MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\642F.batFilesize
77B
MD555cc761bf3429324e5a0095cab002113
SHA12cc1ef4542a4e92d4158ab3978425d517fafd16d
SHA256d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a
SHA51233f9f5cad22d291077787c7df510806e4ac31f453d288712595af6debe579fabed6cdf4662e46e6fa94de135b161e739f55cfae05c36c87af85ed6a6ad1c9155
-
C:\Users\Admin\AppData\Local\Temp\E495.exeFilesize
421KB
MD59185b776b7a981d060b0bb0d7ffed201
SHA1427982fb520c099e8d2e831ace18294ade871aff
SHA25691a45c416324ed3a8c184e349214e7c82d6df0df4fe6d06f3c7818c0d322373b
SHA512cb46ca0c3156dc7b177fdb73869e13b229cbab8918dbb4b61a854765313fc9526aa5d7b944aa4b9acb77717c5ffd8fe955ba4eb48d75e2528ec844bfcf4aa5e8
-
C:\Users\Admin\AppData\Roaming\fhvfwtgFilesize
319KB
MD5b3316f86c6b6295b3f9fcb0a2a36803f
SHA12769a937f0b048446847c7baf741a96387555da4
SHA2567504e9a4776b47f2efd082066eee2ac795fca4398d8ee85b6af6af217c0e583e
SHA5126157eb3557b2ee26d59f057458d89feb12fd84d47166844bb42641888ec2ed96297c75d3dd4bca057f1257b7e1d527da59ffd78ad8e53c75a2bed4893caf4110
-
memory/1204-4-0x0000000002E00000-0x0000000002E16000-memory.dmpFilesize
88KB
-
memory/1204-30-0x0000000002AD0000-0x0000000002AD1000-memory.dmpFilesize
4KB
-
memory/1772-1-0x00000000008C0000-0x00000000009C0000-memory.dmpFilesize
1024KB
-
memory/1772-3-0x0000000000400000-0x000000000045F000-memory.dmpFilesize
380KB
-
memory/1772-5-0x0000000000400000-0x000000000045F000-memory.dmpFilesize
380KB
-
memory/1772-2-0x0000000000220000-0x000000000022B000-memory.dmpFilesize
44KB
-
memory/2512-34-0x00000000044C0000-0x00000000044C1000-memory.dmpFilesize
4KB
-
memory/2512-38-0x0000000002B00000-0x0000000002B10000-memory.dmpFilesize
64KB
-
memory/2512-44-0x0000000002B20000-0x0000000002B36000-memory.dmpFilesize
88KB
-
memory/2512-33-0x00000000044C0000-0x00000000044C1000-memory.dmpFilesize
4KB
-
memory/2976-43-0x0000000000400000-0x000000000045F000-memory.dmpFilesize
380KB
-
memory/2976-42-0x0000000000270000-0x0000000000370000-memory.dmpFilesize
1024KB
-
memory/2976-47-0x0000000000400000-0x000000000045F000-memory.dmpFilesize
380KB