Analysis
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max time kernel
150s -
max time network
92s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
03-04-2021 13:20
Static task
static1
Behavioral task
behavioral1
Sample
54a48461c5eebcb2c0ad360835633f993cf4c94956f0b4bd7a2c9c9d365c5e6a.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
General
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Target
54a48461c5eebcb2c0ad360835633f993cf4c94956f0b4bd7a2c9c9d365c5e6a.dll
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Size
196KB
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MD5
38bdbcdeaa8345ad8a5bcfa186912423
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SHA1
207f6d77de463a62ca370e91eb08598c2a4ef753
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SHA256
54a48461c5eebcb2c0ad360835633f993cf4c94956f0b4bd7a2c9c9d365c5e6a
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SHA512
72a178782f857017b80d789d624cd14faff08edd6ecd71f2d439d0539cacc17fde6272dd021e7ad712015d34b18b954f614ee40c1b96c33e96cb0b468712498d
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/1652-4-0x0000000075380000-0x00000000753B3000-memory.dmp dridex_ldr behavioral1/memory/1652-6-0x0000000075380000-0x000000007539F000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 6 1652 rundll32.exe 8 1652 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 528 wrote to memory of 1652 528 rundll32.exe rundll32.exe PID 528 wrote to memory of 1652 528 rundll32.exe rundll32.exe PID 528 wrote to memory of 1652 528 rundll32.exe rundll32.exe PID 528 wrote to memory of 1652 528 rundll32.exe rundll32.exe PID 528 wrote to memory of 1652 528 rundll32.exe rundll32.exe PID 528 wrote to memory of 1652 528 rundll32.exe rundll32.exe PID 528 wrote to memory of 1652 528 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\54a48461c5eebcb2c0ad360835633f993cf4c94956f0b4bd7a2c9c9d365c5e6a.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\54a48461c5eebcb2c0ad360835633f993cf4c94956f0b4bd7a2c9c9d365c5e6a.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/1072-7-0x000007FEF7D40000-0x000007FEF7FBA000-memory.dmpFilesize
2.5MB
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memory/1652-2-0x0000000000000000-mapping.dmp
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memory/1652-3-0x0000000075D01000-0x0000000075D03000-memory.dmpFilesize
8KB
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memory/1652-4-0x0000000075380000-0x00000000753B3000-memory.dmpFilesize
204KB
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memory/1652-5-0x0000000000110000-0x0000000000116000-memory.dmpFilesize
24KB
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memory/1652-6-0x0000000075380000-0x000000007539F000-memory.dmpFilesize
124KB