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Analysis
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max time kernel
33s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
29/12/2023, 20:55
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
03c183d59e6ea2fe7b8e65f3e9b3efe0.dll
Resource
win7-20231215-en
9 signatures
150 seconds
General
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Target
03c183d59e6ea2fe7b8e65f3e9b3efe0.dll
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Size
1.8MB
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MD5
03c183d59e6ea2fe7b8e65f3e9b3efe0
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SHA1
3f24e02a3b3c7ad6445875bf89301134ed411668
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SHA256
ac0991bd093102a13f9dc9cd52dc8d339a81ebe551e7ff4079f575be23e2d7c3
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SHA512
03361a189416aa22ee8fab5f482fb1c6cec4e2282a2b2fdfe3de0296f039f8820370b5e699bbd85be1f48011cf21f1f98302199a2178fcff590ed8a36f21f8c0
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SSDEEP
12288:OVI0W/TtlPLfJCm3WIYxJ9yK5IQ9PElOlidGAWilgm5Qq0nB6wtt4AenZ1:TfP7fWsK5z9A+WGAW+V5SB6Ct4bnb
Malware Config
Signatures
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resource yara_rule behavioral1/memory/1204-5-0x0000000002550000-0x0000000002551000-memory.dmp dridex_stager_shellcode -
Executes dropped EXE 3 IoCs
pid Process 2668 consent.exe 3064 SystemPropertiesDataExecutionPrevention.exe 2604 msdt.exe -
Loads dropped DLL 7 IoCs
pid Process 1204 Process not Found 2668 consent.exe 1204 Process not Found 3064 SystemPropertiesDataExecutionPrevention.exe 1204 Process not Found 2604 msdt.exe 1204 Process not Found -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\Bsfvntd = "C:\\Users\\Admin\\AppData\\Roaming\\Adobe\\Acrobat\\9.0\\2Nkv9zaCG\\SystemPropertiesDataExecutionPrevention.exe" Process not Found -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA consent.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA SystemPropertiesDataExecutionPrevention.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA msdt.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2248 rundll32.exe 2248 rundll32.exe 2248 rundll32.exe 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 1204 wrote to memory of 2736 1204 Process not Found 29 PID 1204 wrote to memory of 2736 1204 Process not Found 29 PID 1204 wrote to memory of 2736 1204 Process not Found 29 PID 1204 wrote to memory of 2668 1204 Process not Found 28 PID 1204 wrote to memory of 2668 1204 Process not Found 28 PID 1204 wrote to memory of 2668 1204 Process not Found 28 PID 1204 wrote to memory of 2716 1204 Process not Found 31 PID 1204 wrote to memory of 2716 1204 Process not Found 31 PID 1204 wrote to memory of 2716 1204 Process not Found 31 PID 1204 wrote to memory of 3064 1204 Process not Found 30 PID 1204 wrote to memory of 3064 1204 Process not Found 30 PID 1204 wrote to memory of 3064 1204 Process not Found 30 PID 1204 wrote to memory of 1980 1204 Process not Found 33 PID 1204 wrote to memory of 1980 1204 Process not Found 33 PID 1204 wrote to memory of 1980 1204 Process not Found 33 PID 1204 wrote to memory of 2604 1204 Process not Found 32 PID 1204 wrote to memory of 2604 1204 Process not Found 32 PID 1204 wrote to memory of 2604 1204 Process not Found 32 -
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:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\03c183d59e6ea2fe7b8e65f3e9b3efe0.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:2248
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C:\Users\Admin\AppData\Local\l9Q8nX\consent.exeC:\Users\Admin\AppData\Local\l9Q8nX\consent.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2668
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C:\Windows\system32\consent.exeC:\Windows\system32\consent.exe1⤵PID:2736
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C:\Users\Admin\AppData\Local\1Zw8UYam\SystemPropertiesDataExecutionPrevention.exeC:\Users\Admin\AppData\Local\1Zw8UYam\SystemPropertiesDataExecutionPrevention.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:3064
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C:\Windows\system32\SystemPropertiesDataExecutionPrevention.exeC:\Windows\system32\SystemPropertiesDataExecutionPrevention.exe1⤵PID:2716
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C:\Users\Admin\AppData\Local\I57vxtYw\msdt.exeC:\Users\Admin\AppData\Local\I57vxtYw\msdt.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2604
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C:\Windows\system32\msdt.exeC:\Windows\system32\msdt.exe1⤵PID:1980