Analysis
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max time kernel
32s -
max time network
10s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
21-04-2021 18:03
Static task
static1
Behavioral task
behavioral1
Sample
f659c432455dc81f8c96241c8f8162ec434b94990b01f4c9f15def6ca4024226.dll
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
General
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Target
f659c432455dc81f8c96241c8f8162ec434b94990b01f4c9f15def6ca4024226.dll
-
Size
161KB
-
MD5
da84d7ac02db6cd41d04afcda1cb58ce
-
SHA1
81eafd3021aa80a20a1be29fac8c0082ad4e1f40
-
SHA256
f659c432455dc81f8c96241c8f8162ec434b94990b01f4c9f15def6ca4024226
-
SHA512
0ffd4333cbeb2a4d00e1679fff26f50ef34d6db3741ef312888b313b8a68e8ccce9f3344a9174c94dcbf71d031ea35a0f0aa3393fc52bc1883f99eab8dece87c
Malware Config
Extracted
Family
dridex
Botnet
40111
C2
107.172.227.10:443
172.93.133.123:2303
108.168.61.147:8172
rc4.plain
rc4.plain
Signatures
-
Processes:
resource yara_rule behavioral1/memory/2016-62-0x0000000074BF0000-0x0000000074C1E000-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 1612 wrote to memory of 2016 1612 rundll32.exe rundll32.exe PID 1612 wrote to memory of 2016 1612 rundll32.exe rundll32.exe PID 1612 wrote to memory of 2016 1612 rundll32.exe rundll32.exe PID 1612 wrote to memory of 2016 1612 rundll32.exe rundll32.exe PID 1612 wrote to memory of 2016 1612 rundll32.exe rundll32.exe PID 1612 wrote to memory of 2016 1612 rundll32.exe rundll32.exe PID 1612 wrote to memory of 2016 1612 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\f659c432455dc81f8c96241c8f8162ec434b94990b01f4c9f15def6ca4024226.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\f659c432455dc81f8c96241c8f8162ec434b94990b01f4c9f15def6ca4024226.dll,#12⤵
- Checks whether UAC is enabled
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/2016-60-0x0000000000000000-mapping.dmp
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memory/2016-61-0x0000000075D51000-0x0000000075D53000-memory.dmpFilesize
8KB
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memory/2016-62-0x0000000074BF0000-0x0000000074C1E000-memory.dmpFilesize
184KB
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memory/2016-64-0x0000000000140000-0x0000000000146000-memory.dmpFilesize
24KB