Analysis
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max time kernel
20s -
max time network
113s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
21-07-2021 18:27
Static task
static1
General
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Target
55bc0af1e99d0310ea3e8668aba02e4d3aa3c800b85fe304a6377968a4668cc1.dll
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Size
175KB
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MD5
adb1d947f0901a4f3cb0b8ad1a6ee385
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SHA1
b82715bbeab52f75dd44f6396593111ae242632c
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SHA256
55bc0af1e99d0310ea3e8668aba02e4d3aa3c800b85fe304a6377968a4668cc1
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SHA512
7eea926f405b066917262ad31e109773c40373e6254a25e2b25c53175a8ca7aabc66e275672af38e45eabcd2080f8236078f709ed0332a092cc41b5afea5a606
Malware Config
Extracted
Family
dridex
Botnet
22201
C2
178.238.236.59:443
104.245.52.73:5007
81.0.236.93:13786
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral1/memory/3820-115-0x0000000073B80000-0x0000000073BB0000-memory.dmp dridex_ldr -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3540 3820 WerFault.exe rundll32.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
WerFault.exepid process 3540 WerFault.exe 3540 WerFault.exe 3540 WerFault.exe 3540 WerFault.exe 3540 WerFault.exe 3540 WerFault.exe 3540 WerFault.exe 3540 WerFault.exe 3540 WerFault.exe 3540 WerFault.exe 3540 WerFault.exe 3540 WerFault.exe 3540 WerFault.exe 3540 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
WerFault.exedescription pid process Token: SeRestorePrivilege 3540 WerFault.exe Token: SeBackupPrivilege 3540 WerFault.exe Token: SeDebugPrivilege 3540 WerFault.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 772 wrote to memory of 3820 772 rundll32.exe rundll32.exe PID 772 wrote to memory of 3820 772 rundll32.exe rundll32.exe PID 772 wrote to memory of 3820 772 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\55bc0af1e99d0310ea3e8668aba02e4d3aa3c800b85fe304a6377968a4668cc1.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:772 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\55bc0af1e99d0310ea3e8668aba02e4d3aa3c800b85fe304a6377968a4668cc1.dll,#12⤵PID:3820
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3820 -s 6443⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3540
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