Analysis
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max time kernel
60s -
max time network
53s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
04-03-2021 14:04
Static task
static1
General
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Target
0da60a594c0043af2eca38b8bcf18c4c9339e3788fa76b5cec6eeb71cb583829.dll
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Size
196KB
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MD5
9e4536d21ba9412b9ad0eaca930e9390
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SHA1
f116c4c3726c82b41d2e011cff1c13da0f0c1051
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SHA256
0da60a594c0043af2eca38b8bcf18c4c9339e3788fa76b5cec6eeb71cb583829
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SHA512
b167dc13fecf1f9c9f43f62096bf88aaaacc235da2a0653429cdb62b24d349484917dd1a9f60052371cc008d7448f4b6f718b85d926090fc49a75d00cb35b20e
Malware Config
Extracted
Family
dridex
Botnet
111
C2
37.247.35.132:443
50.243.30.51:6601
162.241.204.234:6516
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral1/memory/2040-4-0x0000000074750000-0x0000000074783000-memory.dmp dridex_ldr behavioral1/memory/2040-6-0x0000000074750000-0x000000007476F000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 4 2040 rundll32.exe 6 2040 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 1832 wrote to memory of 2040 1832 rundll32.exe rundll32.exe PID 1832 wrote to memory of 2040 1832 rundll32.exe rundll32.exe PID 1832 wrote to memory of 2040 1832 rundll32.exe rundll32.exe PID 1832 wrote to memory of 2040 1832 rundll32.exe rundll32.exe PID 1832 wrote to memory of 2040 1832 rundll32.exe rundll32.exe PID 1832 wrote to memory of 2040 1832 rundll32.exe rundll32.exe PID 1832 wrote to memory of 2040 1832 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\0da60a594c0043af2eca38b8bcf18c4c9339e3788fa76b5cec6eeb71cb583829.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\0da60a594c0043af2eca38b8bcf18c4c9339e3788fa76b5cec6eeb71cb583829.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/308-7-0x000007FEF5D50000-0x000007FEF5FCA000-memory.dmpFilesize
2.5MB
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memory/2040-2-0x0000000000000000-mapping.dmp
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memory/2040-3-0x0000000075DE1000-0x0000000075DE3000-memory.dmpFilesize
8KB
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memory/2040-4-0x0000000074750000-0x0000000074783000-memory.dmpFilesize
204KB
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memory/2040-5-0x0000000000240000-0x0000000000246000-memory.dmpFilesize
24KB
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memory/2040-6-0x0000000074750000-0x000000007476F000-memory.dmpFilesize
124KB