Analysis
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max time kernel
34s -
max time network
33s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
21-04-2021 17:03
Static task
static1
Behavioral task
behavioral1
Sample
a1a640a41b403bd5989a6aff916e1a4306dbc24c96704af36b141effc896c3d0.dll
Resource
win7v20210410
windows7_x64
0 signatures
0 seconds
General
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Target
a1a640a41b403bd5989a6aff916e1a4306dbc24c96704af36b141effc896c3d0.dll
-
Size
158KB
-
MD5
b1ede1ee47c7f1a23a41670d2569eab2
-
SHA1
51f7343ce50820a0576ad8cae69400a06338b142
-
SHA256
a1a640a41b403bd5989a6aff916e1a4306dbc24c96704af36b141effc896c3d0
-
SHA512
cd3959a59df47949841b2d89692ee7600e58d36effab55eea32f823c32f19e6b0608e27c158f11de6a2a6f47a4536e2be147fc473a63aeaceaff106ae9d2d4e5
Malware Config
Extracted
Family
dridex
Botnet
40112
C2
8.210.53.215:443
72.249.22.245:2303
188.40.137.206:8172
rc4.plain
rc4.plain
Signatures
-
Processes:
resource yara_rule behavioral1/memory/2032-62-0x0000000074920000-0x000000007494D000-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 1640 wrote to memory of 2032 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 2032 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 2032 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 2032 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 2032 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 2032 1640 rundll32.exe rundll32.exe PID 1640 wrote to memory of 2032 1640 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\a1a640a41b403bd5989a6aff916e1a4306dbc24c96704af36b141effc896c3d0.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1640 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\a1a640a41b403bd5989a6aff916e1a4306dbc24c96704af36b141effc896c3d0.dll,#12⤵
- Checks whether UAC is enabled
PID:2032
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/2032-60-0x0000000000000000-mapping.dmp
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memory/2032-61-0x0000000075631000-0x0000000075633000-memory.dmpFilesize
8KB
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memory/2032-62-0x0000000074920000-0x000000007494D000-memory.dmpFilesize
180KB
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memory/2032-64-0x00000000001A0000-0x00000000001A6000-memory.dmpFilesize
24KB