Analysis
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max time kernel
284s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
29-04-2024 05:19
Static task
static1
Behavioral task
behavioral1
Sample
beb0d0b717d39474cdc522eea925e437dc02c260626b43db1d235640a5d568e0.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
beb0d0b717d39474cdc522eea925e437dc02c260626b43db1d235640a5d568e0.exe
Resource
win10-20240404-en
General
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Target
beb0d0b717d39474cdc522eea925e437dc02c260626b43db1d235640a5d568e0.exe
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Size
307KB
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MD5
cf3c1c8bf8cb2a7c77f976c30bb1db06
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SHA1
96660806f005a84bdac81a649a3118ac0f9605fc
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SHA256
beb0d0b717d39474cdc522eea925e437dc02c260626b43db1d235640a5d568e0
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SHA512
2fd14931d640159ffadc236482e8d36b5b16663b935d7bef273c149ddfd008fb9a5c280a2992a1b2f5c294ed4ce3e15101d7b7a9e05a5095b1362920033819a4
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SSDEEP
3072:Y5a5vdqPp0ekxe4H0+3bLjP4wdRNpmsLP+p2uYPrBUeSoYI6iHEXiEI7I8NU:b+Ce8QQXvRNpmP8pBUe2I6mEXiEMNU
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
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Downloads MZ/PE file
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Modifies Installed Components in the registry 2 TTPs 1 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Active Setup\Installed Components explorer.exe -
Deletes itself 1 IoCs
Processes:
pid process 1380 -
Executes dropped EXE 3 IoCs
Processes:
atgbdww8367.exe86C2.exepid process 2992 atgbdww 2264 8367.exe 3028 86C2.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
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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:
8367.exedescription ioc process File opened for modification \??\PHYSICALDRIVE0 8367.exe -
Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
beb0d0b717d39474cdc522eea925e437dc02c260626b43db1d235640a5d568e0.exeatgbdwwdescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI beb0d0b717d39474cdc522eea925e437dc02c260626b43db1d235640a5d568e0.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI beb0d0b717d39474cdc522eea925e437dc02c260626b43db1d235640a5d568e0.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI beb0d0b717d39474cdc522eea925e437dc02c260626b43db1d235640a5d568e0.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI atgbdww Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI atgbdww Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI atgbdww -
Modifies registry class 5 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell explorer.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots explorer.exe Set value (data) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff explorer.exe Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings explorer.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
beb0d0b717d39474cdc522eea925e437dc02c260626b43db1d235640a5d568e0.exepid process 824 beb0d0b717d39474cdc522eea925e437dc02c260626b43db1d235640a5d568e0.exe 824 beb0d0b717d39474cdc522eea925e437dc02c260626b43db1d235640a5d568e0.exe 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 1380 -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
explorer.exepid process 1868 explorer.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
Processes:
beb0d0b717d39474cdc522eea925e437dc02c260626b43db1d235640a5d568e0.exeatgbdwwpid process 824 beb0d0b717d39474cdc522eea925e437dc02c260626b43db1d235640a5d568e0.exe 2992 atgbdww -
Suspicious use of AdjustPrivilegeToken 12 IoCs
Processes:
explorer.exedescription pid process Token: SeShutdownPrivilege 1868 explorer.exe Token: SeShutdownPrivilege 1868 explorer.exe Token: SeShutdownPrivilege 1868 explorer.exe Token: SeShutdownPrivilege 1868 explorer.exe Token: SeShutdownPrivilege 1868 explorer.exe Token: SeShutdownPrivilege 1868 explorer.exe Token: SeShutdownPrivilege 1868 explorer.exe Token: SeShutdownPrivilege 1868 explorer.exe Token: SeShutdownPrivilege 1868 explorer.exe Token: SeShutdownPrivilege 1868 explorer.exe Token: SeShutdownPrivilege 1868 explorer.exe Token: SeShutdownPrivilege 1868 explorer.exe -
Suspicious use of FindShellTrayWindow 34 IoCs
Processes:
explorer.exepid process 1380 1380 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe -
Suspicious use of SendNotifyMessage 23 IoCs
Processes:
explorer.exepid process 1380 1380 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe 1868 explorer.exe -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
cmd.execmd.exetaskeng.exedescription pid process target process PID 1380 wrote to memory of 2600 1380 cmd.exe PID 1380 wrote to memory of 2600 1380 cmd.exe PID 1380 wrote to memory of 2600 1380 cmd.exe PID 2600 wrote to memory of 2676 2600 cmd.exe reg.exe PID 2600 wrote to memory of 2676 2600 cmd.exe reg.exe PID 2600 wrote to memory of 2676 2600 cmd.exe reg.exe PID 1380 wrote to memory of 1164 1380 cmd.exe PID 1380 wrote to memory of 1164 1380 cmd.exe PID 1380 wrote to memory of 1164 1380 cmd.exe PID 1164 wrote to memory of 2612 1164 cmd.exe reg.exe PID 1164 wrote to memory of 2612 1164 cmd.exe reg.exe PID 1164 wrote to memory of 2612 1164 cmd.exe reg.exe PID 2996 wrote to memory of 2992 2996 taskeng.exe atgbdww PID 2996 wrote to memory of 2992 2996 taskeng.exe atgbdww PID 2996 wrote to memory of 2992 2996 taskeng.exe atgbdww PID 2996 wrote to memory of 2992 2996 taskeng.exe atgbdww PID 1380 wrote to memory of 2264 1380 8367.exe PID 1380 wrote to memory of 2264 1380 8367.exe PID 1380 wrote to memory of 2264 1380 8367.exe PID 1380 wrote to memory of 2264 1380 8367.exe PID 1380 wrote to memory of 3028 1380 86C2.exe PID 1380 wrote to memory of 3028 1380 86C2.exe PID 1380 wrote to memory of 3028 1380 86C2.exe PID 1380 wrote to memory of 3028 1380 86C2.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
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C:\Users\Admin\AppData\Local\Temp\beb0d0b717d39474cdc522eea925e437dc02c260626b43db1d235640a5d568e0.exe"C:\Users\Admin\AppData\Local\Temp\beb0d0b717d39474cdc522eea925e437dc02c260626b43db1d235640a5d568e0.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Windows\system32\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\5FAD.bat" "1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\reg.exereg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 12⤵
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C:\Windows\system32\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\72F0.bat" "1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\reg.exereg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 12⤵
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C:\Windows\system32\taskeng.exetaskeng.exe {99B3DD6A-A262-40CD-95E6-B731FDAA0D58} S-1-5-21-3627615824-4061627003-3019543961-1000:SCFGBRBT\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\atgbdwwC:\Users\Admin\AppData\Roaming\atgbdww2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\8367.exeC:\Users\Admin\AppData\Local\Temp\8367.exe1⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
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C:\Users\Admin\AppData\Local\Temp\86C2.exeC:\Users\Admin\AppData\Local\Temp\86C2.exe1⤵
- Executes dropped EXE
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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
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
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C:\Users\Admin\AppData\Local\Temp\5FAD.batFilesize
77B
MD555cc761bf3429324e5a0095cab002113
SHA12cc1ef4542a4e92d4158ab3978425d517fafd16d
SHA256d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a
SHA51233f9f5cad22d291077787c7df510806e4ac31f453d288712595af6debe579fabed6cdf4662e46e6fa94de135b161e739f55cfae05c36c87af85ed6a6ad1c9155
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C:\Users\Admin\AppData\Local\Temp\8367.exeFilesize
421KB
MD59185b776b7a981d060b0bb0d7ffed201
SHA1427982fb520c099e8d2e831ace18294ade871aff
SHA25691a45c416324ed3a8c184e349214e7c82d6df0df4fe6d06f3c7818c0d322373b
SHA512cb46ca0c3156dc7b177fdb73869e13b229cbab8918dbb4b61a854765313fc9526aa5d7b944aa4b9acb77717c5ffd8fe955ba4eb48d75e2528ec844bfcf4aa5e8
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C:\Users\Admin\AppData\Local\Temp\86C2.exeFilesize
291KB
MD5bb119b725e15ccce409b3f77298919a4
SHA18be4b3e59dc8261b0a845bfc26d21b625ab067fd
SHA2561888c66cc964317f99193dd29dd84a14aff496e2823fbdc5f909e7ccb6f27d79
SHA51291b493f0000fcbb249d149c8b80516e551b984e50003bdfbe5f26043ede866f6eae432960cb598e1ac4f7afa792f44af3f090c52277b6eb0c68fa53c62c66cb2
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C:\Users\Admin\AppData\Roaming\atgbdwwFilesize
307KB
MD5cf3c1c8bf8cb2a7c77f976c30bb1db06
SHA196660806f005a84bdac81a649a3118ac0f9605fc
SHA256beb0d0b717d39474cdc522eea925e437dc02c260626b43db1d235640a5d568e0
SHA5122fd14931d640159ffadc236482e8d36b5b16663b935d7bef273c149ddfd008fb9a5c280a2992a1b2f5c294ed4ce3e15101d7b7a9e05a5095b1362920033819a4
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memory/824-1-0x00000000002D0000-0x00000000003D0000-memory.dmpFilesize
1024KB
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memory/824-3-0x0000000000400000-0x0000000001A18000-memory.dmpFilesize
22.1MB
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memory/824-5-0x0000000000400000-0x0000000001A18000-memory.dmpFilesize
22.1MB
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memory/824-2-0x00000000001B0000-0x00000000001BB000-memory.dmpFilesize
44KB
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memory/1380-4-0x0000000002A50000-0x0000000002A66000-memory.dmpFilesize
88KB
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memory/1380-48-0x00000000049D0000-0x00000000049E6000-memory.dmpFilesize
88KB
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memory/1380-68-0x0000000002A20000-0x0000000002A21000-memory.dmpFilesize
4KB
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memory/1868-75-0x00000000025E0000-0x00000000025F0000-memory.dmpFilesize
64KB
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memory/2992-52-0x0000000000400000-0x0000000001A18000-memory.dmpFilesize
22.1MB
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memory/2992-47-0x0000000000400000-0x0000000001A18000-memory.dmpFilesize
22.1MB
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memory/2992-46-0x0000000001B40000-0x0000000001C40000-memory.dmpFilesize
1024KB
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memory/3028-65-0x0000000000400000-0x0000000002B06000-memory.dmpFilesize
39.0MB