Analysis
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max time kernel
55s -
max time network
111s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
19-04-2021 13:09
Static task
static1
Behavioral task
behavioral1
Sample
gu5xr9o.tar.dll
Resource
win7v20210408
windows7_x64
0 signatures
0 seconds
General
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Target
gu5xr9o.tar.dll
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Size
734KB
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MD5
498341ae19f9aa4dbed0d2f81b4409a3
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SHA1
a2c2fff5f561a5a64644f7250405c5c2a04fd10e
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SHA256
d8ab2cd6839646c2bfcb6d74a1eb4d35de975dcc457a19716f89cac6f553c658
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SHA512
84359a2f2fd1b3fbc7f3db16b45c31e2ae6cca96c137dd4c803d079381ca782239f091cbddc2f9fe8907818664ae4528d9e1d79f69fb56a3a6c0cd63b170e733
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
-
Processes:
resource yara_rule behavioral2/memory/1920-116-0x00000000735B0000-0x000000007368A000-memory.dmp dridex_ldr behavioral2/memory/1920-115-0x00000000735B0000-0x00000000735ED000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 15 1920 rundll32.exe 17 1920 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 4008 wrote to memory of 1920 4008 rundll32.exe rundll32.exe PID 4008 wrote to memory of 1920 4008 rundll32.exe rundll32.exe PID 4008 wrote to memory of 1920 4008 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\gu5xr9o.tar.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\gu5xr9o.tar.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/1920-114-0x0000000000000000-mapping.dmp
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memory/1920-116-0x00000000735B0000-0x000000007368A000-memory.dmpFilesize
872KB
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memory/1920-115-0x00000000735B0000-0x00000000735ED000-memory.dmpFilesize
244KB
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memory/1920-179-0x0000000002DE0000-0x0000000002DE1000-memory.dmpFilesize
4KB