Analysis
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max time kernel
29s -
max time network
141s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
05-03-2021 07:32
Static task
static1
Behavioral task
behavioral1
Sample
a911db267857a504e53afc4bd6f7815e.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
General
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Target
a911db267857a504e53afc4bd6f7815e.dll
-
Size
196KB
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MD5
a911db267857a504e53afc4bd6f7815e
-
SHA1
2ef7d72436383ed1fdb4c7a7f58dadb34235fb2a
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SHA256
6e1f7390466479422f84acdcaa84a33da65ec60d8e8e64d588404e9ec85d38dd
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SHA512
e0b7c4f1b4efa16360feb117a5139a1e68271d4abe1ca442ea57c9746bea8e9ee25981a56fce425d13b1dec9a0cda59927b71bbb656cae60252d719fcb5be9f4
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
-
Processes:
resource yara_rule behavioral2/memory/1468-4-0x00000000738C0000-0x00000000738F3000-memory.dmp dridex_ldr behavioral2/memory/1468-5-0x00000000738C0000-0x00000000738DF000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 16 1468 rundll32.exe 18 1468 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 1048 wrote to memory of 1468 1048 rundll32.exe rundll32.exe PID 1048 wrote to memory of 1468 1048 rundll32.exe rundll32.exe PID 1048 wrote to memory of 1468 1048 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\a911db267857a504e53afc4bd6f7815e.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\a911db267857a504e53afc4bd6f7815e.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/1468-2-0x0000000000000000-mapping.dmp
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memory/1468-3-0x0000000000A10000-0x0000000000A16000-memory.dmpFilesize
24KB
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memory/1468-4-0x00000000738C0000-0x00000000738F3000-memory.dmpFilesize
204KB
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memory/1468-5-0x00000000738C0000-0x00000000738DF000-memory.dmpFilesize
124KB