Analysis
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max time kernel
149s -
max time network
151s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
03-03-2021 19:06
Static task
static1
Behavioral task
behavioral1
Sample
19e17bb561d6e25fd9f72feec12a85df3002c67481e1950395aa8ea1b0930292.dll
Resource
win7v20201028
0 signatures
0 seconds
General
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Target
19e17bb561d6e25fd9f72feec12a85df3002c67481e1950395aa8ea1b0930292.dll
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Size
188KB
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MD5
f5d4c93e70b8d73c20906c3b889f4c9a
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SHA1
158bfb44064471b15cce22818df41a813dd00c12
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SHA256
19e17bb561d6e25fd9f72feec12a85df3002c67481e1950395aa8ea1b0930292
-
SHA512
e53218fbf5858c1d890e55cc35245e76a577b2e13f277562d71974d4e71346ed2289d7a6662e3a9678f4321ca9a45bca5c4b8763def4f034fb2b6261c8dc5058
Malware Config
Extracted
Family
dridex
Botnet
111
C2
116.251.211.158:443
216.10.242.142:6601
37.247.35.137:6601
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral1/memory/1172-4-0x0000000074A10000-0x0000000074A41000-memory.dmp dridex_ldr behavioral1/memory/1172-6-0x0000000074A10000-0x0000000074A2F000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 6 1172 rundll32.exe 8 1172 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 1596 wrote to memory of 1172 1596 rundll32.exe rundll32.exe PID 1596 wrote to memory of 1172 1596 rundll32.exe rundll32.exe PID 1596 wrote to memory of 1172 1596 rundll32.exe rundll32.exe PID 1596 wrote to memory of 1172 1596 rundll32.exe rundll32.exe PID 1596 wrote to memory of 1172 1596 rundll32.exe rundll32.exe PID 1596 wrote to memory of 1172 1596 rundll32.exe rundll32.exe PID 1596 wrote to memory of 1172 1596 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\19e17bb561d6e25fd9f72feec12a85df3002c67481e1950395aa8ea1b0930292.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\19e17bb561d6e25fd9f72feec12a85df3002c67481e1950395aa8ea1b0930292.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/1172-2-0x0000000000000000-mapping.dmp
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memory/1172-3-0x0000000075781000-0x0000000075783000-memory.dmpFilesize
8KB
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memory/1172-4-0x0000000074A10000-0x0000000074A41000-memory.dmpFilesize
196KB
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memory/1172-5-0x0000000000190000-0x0000000000196000-memory.dmpFilesize
24KB
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memory/1172-6-0x0000000074A10000-0x0000000074A2F000-memory.dmpFilesize
124KB
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memory/1440-7-0x000007FEF7540000-0x000007FEF77BA000-memory.dmpFilesize
2.5MB