Analysis
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max time kernel
37s -
max time network
43s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
26-06-2022 06:19
Static task
static1
Behavioral task
behavioral1
Sample
YPLRekkklgbtq.dll
Resource
win7-20220414-en
windows7_x64
0 signatures
0 seconds
General
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Target
YPLRekkklgbtq.dll
-
Size
512KB
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MD5
00f420f88d53dca440288d6ff4958124
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SHA1
df18658f05cb9b0331b36ffbc6738a3bf86b7904
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SHA256
99b02ee3c8256eb95c745119609a976ced1d887e6475f6bd3768fb9711e75554
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SHA512
cbd3f2a60a51a8139837e3f0c2f5193d5e58a1e04e1aa0c7ee74a722e6e2f4fc75ed4f5d0e069eff96a42fc11483d0ed42781a9f443d58fa75d9f179395bbf98
Malware Config
Extracted
Family
dridex
Botnet
22203
C2
51.159.52.196:443
134.209.247.135:6602
194.233.68.48:5228
89.31.56.58:593
rc4.plain
rc4.plain
Signatures
-
Processes:
resource yara_rule behavioral1/memory/924-56-0x0000000074C60000-0x0000000074CE1000-memory.dmp dridex_ldr -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 956 924 WerFault.exe rundll32.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 1768 wrote to memory of 924 1768 rundll32.exe rundll32.exe PID 1768 wrote to memory of 924 1768 rundll32.exe rundll32.exe PID 1768 wrote to memory of 924 1768 rundll32.exe rundll32.exe PID 1768 wrote to memory of 924 1768 rundll32.exe rundll32.exe PID 1768 wrote to memory of 924 1768 rundll32.exe rundll32.exe PID 1768 wrote to memory of 924 1768 rundll32.exe rundll32.exe PID 1768 wrote to memory of 924 1768 rundll32.exe rundll32.exe PID 924 wrote to memory of 956 924 rundll32.exe WerFault.exe PID 924 wrote to memory of 956 924 rundll32.exe WerFault.exe PID 924 wrote to memory of 956 924 rundll32.exe WerFault.exe PID 924 wrote to memory of 956 924 rundll32.exe WerFault.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\YPLRekkklgbtq.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\YPLRekkklgbtq.dll,#12⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 924 -s 3003⤵
- Program crash
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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memory/924-54-0x0000000000000000-mapping.dmp
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memory/924-55-0x0000000075C01000-0x0000000075C03000-memory.dmpFilesize
8KB
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memory/924-56-0x0000000074C60000-0x0000000074CE1000-memory.dmpFilesize
516KB
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memory/924-59-0x0000000000100000-0x0000000000106000-memory.dmpFilesize
24KB
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memory/956-58-0x0000000000000000-mapping.dmp