Analysis
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max time kernel
148s -
max time network
147s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
04-03-2021 12:06
Static task
static1
Behavioral task
behavioral1
Sample
9d70d7f8d45fed6388aad5a899434ad9c2cc62879629928e04bb4650e2e2cc25.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
General
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Target
9d70d7f8d45fed6388aad5a899434ad9c2cc62879629928e04bb4650e2e2cc25.dll
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Size
196KB
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MD5
a2d475831fa6d01215536a2e33ff8c83
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SHA1
de017ff0f75ea4c84d28adb5afd91675f9c26062
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SHA256
9d70d7f8d45fed6388aad5a899434ad9c2cc62879629928e04bb4650e2e2cc25
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SHA512
39a1b6be983e3477fc33d1e8d37f7aee95387077a7ac1861b8b7dd55eb6e4839bd8b6390490052e0571e0582e913b6b60e28bdfa3592bfe4f0a163811b565725
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/900-4-0x00000000748E0000-0x0000000074913000-memory.dmp dridex_ldr behavioral1/memory/900-6-0x00000000748E0000-0x00000000748FF000-memory.dmp dridex_ldr -
Blocklisted process makes network request 4 IoCs
Processes:
rundll32.exeflow pid process 4 900 rundll32.exe 7 900 rundll32.exe 8 900 rundll32.exe 9 900 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 1888 wrote to memory of 900 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 900 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 900 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 900 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 900 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 900 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 900 1888 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\9d70d7f8d45fed6388aad5a899434ad9c2cc62879629928e04bb4650e2e2cc25.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\9d70d7f8d45fed6388aad5a899434ad9c2cc62879629928e04bb4650e2e2cc25.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/744-7-0x000007FEF7430000-0x000007FEF76AA000-memory.dmpFilesize
2.5MB
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memory/900-3-0x0000000075781000-0x0000000075783000-memory.dmpFilesize
8KB
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memory/900-2-0x0000000000000000-mapping.dmp
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memory/900-4-0x00000000748E0000-0x0000000074913000-memory.dmpFilesize
204KB
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memory/900-5-0x0000000000240000-0x0000000000246000-memory.dmpFilesize
24KB
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memory/900-6-0x00000000748E0000-0x00000000748FF000-memory.dmpFilesize
124KB