Analysis
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max time kernel
18s -
max time network
135s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
15/06/2021, 15:45
Static task
static1
General
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Target
fd638cb9242c28e98e3e216af91f45a3f5d91fc93996e3c09c2b056f8e312dff.dll
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Size
170KB
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MD5
c6d335ce3dd2a4cbf76efe3f0c4b815c
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SHA1
f4c2acc878ae363d24c22c5e82ec6a35e1a8869c
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SHA256
fd638cb9242c28e98e3e216af91f45a3f5d91fc93996e3c09c2b056f8e312dff
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SHA512
bd952a0e111029bc327b8a3553b22c1e71a059474baf571b3a13f590cc7e7a12b95aed87673d7d23497815480168bdec03e149944038ec58c63d89ebeba27a57
Malware Config
Extracted
Family
dridex
Botnet
40112
C2
128.199.200.38:443
192.163.233.216:6601
43.229.206.244:4125
rc4.plain
rc4.plain
Signatures
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resource yara_rule behavioral1/memory/2236-115-0x0000000074420000-0x0000000074450000-memory.dmp dridex_ldr -
Program crash 1 IoCs
pid pid_target Process procid_target 3948 2236 WerFault.exe 69 -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 3948 WerFault.exe 3948 WerFault.exe 3948 WerFault.exe 3948 WerFault.exe 3948 WerFault.exe 3948 WerFault.exe 3948 WerFault.exe 3948 WerFault.exe 3948 WerFault.exe 3948 WerFault.exe 3948 WerFault.exe 3948 WerFault.exe 3948 WerFault.exe 3948 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeRestorePrivilege 3948 WerFault.exe Token: SeBackupPrivilege 3948 WerFault.exe Token: SeDebugPrivilege 3948 WerFault.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1856 wrote to memory of 2236 1856 rundll32.exe 69 PID 1856 wrote to memory of 2236 1856 rundll32.exe 69 PID 1856 wrote to memory of 2236 1856 rundll32.exe 69
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\fd638cb9242c28e98e3e216af91f45a3f5d91fc93996e3c09c2b056f8e312dff.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1856 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\fd638cb9242c28e98e3e216af91f45a3f5d91fc93996e3c09c2b056f8e312dff.dll,#12⤵PID:2236
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2236 -s 6763⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3948
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