Analysis
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max time kernel
60s -
max time network
61s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
25-02-2021 06:43
Static task
static1
General
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Target
9b1209ef109fe7439817f9eecc2b8e9f1a5ee8b0e8148e6fceae8b2980d36ab2.dll
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Size
188KB
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MD5
1e1fb5452efad9f98d747ed2f0dcc3a5
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SHA1
b1776fb23b1f78babf9dba16ce1519ae94e2bad9
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SHA256
9b1209ef109fe7439817f9eecc2b8e9f1a5ee8b0e8148e6fceae8b2980d36ab2
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SHA512
be9e4a07a53d393e658f90be0a8199f9dc115d6ea232f8ec5a0407b679ce1c7744d955ad3cf65d7dd1c3bdb825d3300c20c5c24595d61708008bdce10e89b518
Malware Config
Extracted
Family
dridex
Botnet
111
C2
209.151.236.42:443
91.121.94.86:8172
5.189.144.136:6516
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral1/memory/1176-5-0x00000000747C0000-0x00000000747F1000-memory.dmp dridex_ldr behavioral1/memory/1176-7-0x00000000747C0000-0x00000000747DF000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 6 1176 rundll32.exe 8 1176 rundll32.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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 1968 wrote to memory of 1176 1968 rundll32.exe rundll32.exe PID 1968 wrote to memory of 1176 1968 rundll32.exe rundll32.exe PID 1968 wrote to memory of 1176 1968 rundll32.exe rundll32.exe PID 1968 wrote to memory of 1176 1968 rundll32.exe rundll32.exe PID 1968 wrote to memory of 1176 1968 rundll32.exe rundll32.exe PID 1968 wrote to memory of 1176 1968 rundll32.exe rundll32.exe PID 1968 wrote to memory of 1176 1968 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\9b1209ef109fe7439817f9eecc2b8e9f1a5ee8b0e8148e6fceae8b2980d36ab2.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\9b1209ef109fe7439817f9eecc2b8e9f1a5ee8b0e8148e6fceae8b2980d36ab2.dll,#12⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/800-8-0x000007FEF5E90000-0x000007FEF610A000-memory.dmpFilesize
2.5MB
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memory/1176-2-0x0000000000000000-mapping.dmp
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memory/1176-3-0x0000000075ED1000-0x0000000075ED3000-memory.dmpFilesize
8KB
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memory/1176-4-0x00000000742A0000-0x0000000074443000-memory.dmpFilesize
1.6MB
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memory/1176-5-0x00000000747C0000-0x00000000747F1000-memory.dmpFilesize
196KB
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memory/1176-6-0x0000000000250000-0x0000000000256000-memory.dmpFilesize
24KB
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memory/1176-7-0x00000000747C0000-0x00000000747DF000-memory.dmpFilesize
124KB