Analysis
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max time kernel
34s -
max time network
94s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
19-04-2021 13:33
Static task
static1
Behavioral task
behavioral1
Sample
6385fc6db7fcad400241a1535d6fa42d5292d857e85e9f05c5d9d8d586a2f950.dll
Resource
win7v20210408
0 signatures
0 seconds
General
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Target
6385fc6db7fcad400241a1535d6fa42d5292d857e85e9f05c5d9d8d586a2f950.dll
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Size
639KB
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MD5
70dded12efc8d0e79b35825fa3232d1a
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SHA1
77c8401624c25c1e21edad4082c140c4e5dbd8c0
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SHA256
6385fc6db7fcad400241a1535d6fa42d5292d857e85e9f05c5d9d8d586a2f950
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SHA512
523e9357474c92542a5a7b1b924f1f74e1dd23ec09ed3decd2fffbeb67b6e54484de5f6921fd17b88003f7e03ee02f8d1b1ce4f4a2426693e6498311630661bf
Malware Config
Extracted
Family
dridex
Botnet
10444
C2
146.185.170.249:443
62.75.251.60:6601
185.148.168.25:2303
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral1/memory/1816-62-0x0000000074870000-0x0000000074933000-memory.dmp dridex_ldr behavioral1/memory/1816-61-0x0000000074870000-0x00000000748AD000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 5 1816 rundll32.exe 7 1816 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 980 wrote to memory of 1816 980 rundll32.exe rundll32.exe PID 980 wrote to memory of 1816 980 rundll32.exe rundll32.exe PID 980 wrote to memory of 1816 980 rundll32.exe rundll32.exe PID 980 wrote to memory of 1816 980 rundll32.exe rundll32.exe PID 980 wrote to memory of 1816 980 rundll32.exe rundll32.exe PID 980 wrote to memory of 1816 980 rundll32.exe rundll32.exe PID 980 wrote to memory of 1816 980 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\6385fc6db7fcad400241a1535d6fa42d5292d857e85e9f05c5d9d8d586a2f950.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\6385fc6db7fcad400241a1535d6fa42d5292d857e85e9f05c5d9d8d586a2f950.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/1816-59-0x0000000000000000-mapping.dmp
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memory/1816-60-0x0000000075FF1000-0x0000000075FF3000-memory.dmpFilesize
8KB
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memory/1816-62-0x0000000074870000-0x0000000074933000-memory.dmpFilesize
780KB
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memory/1816-61-0x0000000074870000-0x00000000748AD000-memory.dmpFilesize
244KB
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memory/1816-63-0x0000000000330000-0x0000000000331000-memory.dmpFilesize
4KB