Analysis
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max time kernel
23s -
max time network
133s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
03-03-2021 19:42
Static task
static1
Behavioral task
behavioral1
Sample
1d8b5bf20413995710b67e5d4f1b252688d61407fba6acc44ffccc86f05f68b8.dll
Resource
win7v20201028
0 signatures
0 seconds
General
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Target
1d8b5bf20413995710b67e5d4f1b252688d61407fba6acc44ffccc86f05f68b8.dll
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Size
196KB
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MD5
4e7e5be4cca7fc312944f293137f3222
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SHA1
6d38daf21bc0786dc1a8788c5ee5b0707c77a65a
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SHA256
1d8b5bf20413995710b67e5d4f1b252688d61407fba6acc44ffccc86f05f68b8
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SHA512
104e0150240dd88af10258d89e738c52df45663415f94f566ed46bc43619517960fc935246713fc7bfb259757431dfe1fd02350b3fbf75cfe11e66b20cd508d1
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 behavioral2/memory/4788-3-0x00000000737D0000-0x0000000073803000-memory.dmp dridex_ldr behavioral2/memory/4788-5-0x00000000737D0000-0x00000000737EF000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 18 4788 rundll32.exe 20 4788 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 4772 wrote to memory of 4788 4772 rundll32.exe rundll32.exe PID 4772 wrote to memory of 4788 4772 rundll32.exe rundll32.exe PID 4772 wrote to memory of 4788 4772 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\1d8b5bf20413995710b67e5d4f1b252688d61407fba6acc44ffccc86f05f68b8.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\1d8b5bf20413995710b67e5d4f1b252688d61407fba6acc44ffccc86f05f68b8.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/4788-2-0x0000000000000000-mapping.dmp
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memory/4788-3-0x00000000737D0000-0x0000000073803000-memory.dmpFilesize
204KB
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memory/4788-4-0x00000000030B0000-0x00000000030B6000-memory.dmpFilesize
24KB
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memory/4788-5-0x00000000737D0000-0x00000000737EF000-memory.dmpFilesize
124KB