Analysis
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max time kernel
146s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240319-en -
resource tags
arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system -
submitted
25/03/2024, 15:05
Static task
static1
Behavioral task
behavioral1
Sample
de4b82a7ffeafcc4720ea974858808fd.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
de4b82a7ffeafcc4720ea974858808fd.exe
Resource
win10v2004-20240319-en
General
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Target
de4b82a7ffeafcc4720ea974858808fd.exe
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Size
12.5MB
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MD5
de4b82a7ffeafcc4720ea974858808fd
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SHA1
5fe3e02097b77dc5696e5c70c73c86beeec1653d
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SHA256
ef25242cd655ccffe910bec6a1625773d929fb0bc657a8af0a72442af126c7b1
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SHA512
474fd7aa6edfa92e13656c1bfd835f0f9b9905c2ae0c0d6766ade1c08b6449e90d95ae921c3fd2ce2ba7dc6ecc5c0a08507f86ea3be6c5847d5db8fc58b2265d
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SSDEEP
24576:TjCj10HSqGgeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee/:T/D
Malware Config
Extracted
tofsee
defeatwax.ru
refabyd.info
Signatures
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Creates new service(s) 1 TTPs
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 1704 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\usiuxfcn\ImagePath = "C:\\Windows\\SysWOW64\\usiuxfcn\\ziuakfbr.exe" svchost.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Control Panel\International\Geo\Nation de4b82a7ffeafcc4720ea974858808fd.exe -
Executes dropped EXE 1 IoCs
pid Process 4608 ziuakfbr.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4608 set thread context of 4936 4608 ziuakfbr.exe 109 -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 4236 sc.exe 3196 sc.exe 4500 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 3644 wrote to memory of 2068 3644 de4b82a7ffeafcc4720ea974858808fd.exe 96 PID 3644 wrote to memory of 2068 3644 de4b82a7ffeafcc4720ea974858808fd.exe 96 PID 3644 wrote to memory of 2068 3644 de4b82a7ffeafcc4720ea974858808fd.exe 96 PID 3644 wrote to memory of 3300 3644 de4b82a7ffeafcc4720ea974858808fd.exe 98 PID 3644 wrote to memory of 3300 3644 de4b82a7ffeafcc4720ea974858808fd.exe 98 PID 3644 wrote to memory of 3300 3644 de4b82a7ffeafcc4720ea974858808fd.exe 98 PID 3644 wrote to memory of 4236 3644 de4b82a7ffeafcc4720ea974858808fd.exe 100 PID 3644 wrote to memory of 4236 3644 de4b82a7ffeafcc4720ea974858808fd.exe 100 PID 3644 wrote to memory of 4236 3644 de4b82a7ffeafcc4720ea974858808fd.exe 100 PID 3644 wrote to memory of 3196 3644 de4b82a7ffeafcc4720ea974858808fd.exe 102 PID 3644 wrote to memory of 3196 3644 de4b82a7ffeafcc4720ea974858808fd.exe 102 PID 3644 wrote to memory of 3196 3644 de4b82a7ffeafcc4720ea974858808fd.exe 102 PID 3644 wrote to memory of 4500 3644 de4b82a7ffeafcc4720ea974858808fd.exe 104 PID 3644 wrote to memory of 4500 3644 de4b82a7ffeafcc4720ea974858808fd.exe 104 PID 3644 wrote to memory of 4500 3644 de4b82a7ffeafcc4720ea974858808fd.exe 104 PID 3644 wrote to memory of 1704 3644 de4b82a7ffeafcc4720ea974858808fd.exe 107 PID 3644 wrote to memory of 1704 3644 de4b82a7ffeafcc4720ea974858808fd.exe 107 PID 3644 wrote to memory of 1704 3644 de4b82a7ffeafcc4720ea974858808fd.exe 107 PID 4608 wrote to memory of 4936 4608 ziuakfbr.exe 109 PID 4608 wrote to memory of 4936 4608 ziuakfbr.exe 109 PID 4608 wrote to memory of 4936 4608 ziuakfbr.exe 109 PID 4608 wrote to memory of 4936 4608 ziuakfbr.exe 109 PID 4608 wrote to memory of 4936 4608 ziuakfbr.exe 109
Processes
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C:\Users\Admin\AppData\Local\Temp\de4b82a7ffeafcc4720ea974858808fd.exe"C:\Users\Admin\AppData\Local\Temp\de4b82a7ffeafcc4720ea974858808fd.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3644 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\usiuxfcn\2⤵PID:2068
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ziuakfbr.exe" C:\Windows\SysWOW64\usiuxfcn\2⤵PID:3300
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create usiuxfcn binPath= "C:\Windows\SysWOW64\usiuxfcn\ziuakfbr.exe /d\"C:\Users\Admin\AppData\Local\Temp\de4b82a7ffeafcc4720ea974858808fd.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
PID:4236
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description usiuxfcn "wifi internet conection"2⤵
- Launches sc.exe
PID:3196
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start usiuxfcn2⤵
- Launches sc.exe
PID:4500
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul2⤵
- Modifies Windows Firewall
PID:1704
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C:\Windows\SysWOW64\usiuxfcn\ziuakfbr.exeC:\Windows\SysWOW64\usiuxfcn\ziuakfbr.exe /d"C:\Users\Admin\AppData\Local\Temp\de4b82a7ffeafcc4720ea974858808fd.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4608 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
PID:4936
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1040 --field-trial-handle=2276,i,5672504106535478802,17394903851940863593,262144 --variations-seed-version /prefetch:81⤵PID:1564
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
10.0MB
MD5f08a9951342f5405aef3495d71494081
SHA180ca74618df12621d393e49da5082b9f054e5b0d
SHA256334b712b6dc2157607eb44a7c97cb4ba46d16bcb8a51110995c930207e87d73d
SHA5125eef7ed61e3c0870166a0def5f10e88cbe69ebdf7e41eba1557f399ae38b3c95ba4cf0b9f2050be9ff8dbb5f826878f84c9cc77b4551139e66826502974e40b3
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Filesize
4.6MB
MD55a66bc2084b6210e4bd1efb1eb1136f4
SHA11a6250b455f06043ea680e0cd50805fcabc2aaff
SHA256ee1cce5b18d65851138dee09b02fb637cdd0f7fc6cd1d2059bf59da0e79aee23
SHA5126b18c0634affeff40d97be395806ff87f46558dd40334b2d69514b8dfc4c54f2e590a34e76488e5b51a7ea7d5f38559ef6ed0d31f5e8c5b8e6a524142cd98b38