dridex | 69c083542e53579cfd344f93d7109f13a676adf4d73fa41425b3b0fa1dc702e4

Analysis

Target
a8310b450f4be0f4d873d743f4e1b902.dll
Size 512KB
Sample211220-vfpblscafp
SHA256 69c083542e53579cfd344f93d7109f13a676adf4d73fa41425b3b0fa1dc702e4
MD5 a8310b450f4be0f4d873d743f4e1b902
SHA1 3b07e8955ffd27fb919a095e0d2cb39922b59b2f
SHA512 ccc76c2fb3e7b6271fc1cc47e1d5665709686256be7960c23f0be9e326c19b078f8015585d26f39ae6e37231101b7b44e7ada130dba0047c7990a7c0dbe23537
MD5 SHA1 SHA512

Score

10^/10

Family

Botnet

rc4.plain

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

resource	yara_rule
behavioral1/memory/1748-56-0x0000000074BB0000-0x0000000074C31000-memory.dmp	dridex_ldr
behavioral1/memory/760-60-0x0000000000240000-0x00000000002A0000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
760	1748	WerFault.exe	27

Suspicious behavior: EnumeratesProcesses 4 IoCs

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
760	WerFault.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	760	WerFault.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 976 wrote to memory of 1748	976	rundll32.exe	27
PID 976 wrote to memory of 1748	976	rundll32.exe	27
PID 976 wrote to memory of 1748	976	rundll32.exe	27
PID 976 wrote to memory of 1748	976	rundll32.exe	27
PID 976 wrote to memory of 1748	976	rundll32.exe	27
PID 976 wrote to memory of 1748	976	rundll32.exe	27
PID 976 wrote to memory of 1748	976	rundll32.exe	27
PID 1748 wrote to memory of 760	1748	rundll32.exe	28
PID 1748 wrote to memory of 760	1748	rundll32.exe	28
PID 1748 wrote to memory of 760	1748	rundll32.exe	28
PID 1748 wrote to memory of 760	1748	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a8310b450f4be0f4d873d743f4e1b902.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:976
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a8310b450f4be0f4d873d743f4e1b902.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1748
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1748 -s 300
    3⤵
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:760

memory/760-60-0x0000000000240000-0x00000000002A0000-memory.dmp

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memory/1748-55-0x0000000075761000-0x0000000075763000-memory.dmp

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memory/1748-56-0x0000000074BB0000-0x0000000074C31000-memory.dmp

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memory/1748-58-0x0000000000170000-0x0000000000176000-memory.dmp

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