Analysis
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max time kernel
123s -
max time network
122s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
21-04-2021 18:18
Static task
static1
Behavioral task
behavioral1
Sample
3b2c9bcb5013b06169df1feb3221e68c657ea876825013dff6591b4cd72de109.dll
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
General
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Target
3b2c9bcb5013b06169df1feb3221e68c657ea876825013dff6591b4cd72de109.dll
-
Size
154KB
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MD5
afb0c66f1d38f8ce5643aa72834c0132
-
SHA1
b1cf9625b2232797929b03e774ceacf3b0e4980d
-
SHA256
3b2c9bcb5013b06169df1feb3221e68c657ea876825013dff6591b4cd72de109
-
SHA512
b56a55ff82c16f8c8209137e62ac35ea14ca5da65fa1927a54dc12b5c6e7b7de8fa4a6377e586a9cc057a0ce0db6b1e35bc24a8c9a54bc6d7e97c78203a8b5dc
Malware Config
Extracted
Family
dridex
Botnet
40111
C2
159.8.59.82:443
51.91.156.39:2303
67.196.50.240:8172
rc4.plain
rc4.plain
Signatures
-
Processes:
resource yara_rule behavioral1/memory/1252-61-0x0000000074610000-0x000000007463D000-memory.dmp dridex_ldr -
Processes:
rundll32.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
rundll32.exedescription pid process target process PID 1888 wrote to memory of 1252 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 1252 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 1252 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 1252 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 1252 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 1252 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 1252 1888 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\3b2c9bcb5013b06169df1feb3221e68c657ea876825013dff6591b4cd72de109.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1888 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\3b2c9bcb5013b06169df1feb3221e68c657ea876825013dff6591b4cd72de109.dll,#12⤵
- Checks whether UAC is enabled
PID:1252
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/1252-59-0x0000000000000000-mapping.dmp
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memory/1252-60-0x0000000075161000-0x0000000075163000-memory.dmpFilesize
8KB
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memory/1252-61-0x0000000074610000-0x000000007463D000-memory.dmpFilesize
180KB
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memory/1252-63-0x0000000000180000-0x0000000000186000-memory.dmpFilesize
24KB