Analysis
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max time kernel
110s -
max time network
135s -
submitted
01-01-1970 00:00
Static task
static1
Behavioral task
behavioral1
Sample
bb6ef01a83b5e55b03acfb062d0fcafc.dll
Resource
win7-en-20210920
windows7_x64
0 signatures
0 seconds
General
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Target
bb6ef01a83b5e55b03acfb062d0fcafc.dll
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Size
750KB
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MD5
bb6ef01a83b5e55b03acfb062d0fcafc
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SHA1
2ef0ff52756ef0fc7f52003ec2a7265ba527bb88
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SHA256
2d5ae6664eb5248294dd2adb28da85444ba12ddbbda67ac286153639bc51f369
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SHA512
1e59503f690a9ac7bb06a827a76d4e071597117546ec6d50d2e337bdcef39bd00a3a1b7c6efd9604aef91b832301dea2ee9efd5a1b748be11a3ddbff221e7a5d
Malware Config
Extracted
Family
dridex
Botnet
10555
C2
192.46.210.220:443
143.244.140.214:808
45.77.0.96:6891
185.56.219.47:8116
rc4.plain
rc4.plain
Signatures
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Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 24 3552 rundll32.exe 25 3552 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 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 3316 wrote to memory of 3552 3316 rundll32.exe rundll32.exe PID 3316 wrote to memory of 3552 3316 rundll32.exe rundll32.exe PID 3316 wrote to memory of 3552 3316 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\bb6ef01a83b5e55b03acfb062d0fcafc.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\bb6ef01a83b5e55b03acfb062d0fcafc.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/3552-115-0x0000000000000000-mapping.dmp
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memory/3552-116-0x00000000740C0000-0x0000000074189000-memory.dmpFilesize
804KB
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memory/3552-118-0x00000000740C0000-0x0000000074189000-memory.dmpFilesize
804KB
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memory/3552-117-0x00000000740C0000-0x00000000740FD000-memory.dmpFilesize
244KB
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memory/3552-120-0x00000000010D0000-0x00000000010D1000-memory.dmpFilesize
4KB
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memory/3552-121-0x00000000010E0000-0x00000000010E1000-memory.dmpFilesize
4KB
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memory/3552-122-0x00000000010E0000-0x00000000010E1000-memory.dmpFilesize
4KB
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memory/3552-123-0x00000000010E0000-0x00000000010E1000-memory.dmpFilesize
4KB