dridex | b11f2f19a0388ff5e8e11f3f6c2e744fde7a8f3d9b56efcc1976ae91578b1a18

Analysis

Target
4139e84d22c892452711f8af0d290776.dll
Size 512KB
Sample211220-vfpblsbcd5
SHA256 b11f2f19a0388ff5e8e11f3f6c2e744fde7a8f3d9b56efcc1976ae91578b1a18
MD5 4139e84d22c892452711f8af0d290776
SHA1 781556793057a448f5ad99636fbd91c5085d6b8b
SHA512 d4a662f1132a73f1b455a62283a9fb528540dd151b4cd36d73192e4bec24660778e7acc9748f722134328158fb1b067f255bdbc4d9ecd908df98acadc68ad80e
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 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

resource	yara_rule
behavioral1/memory/1668-57-0x00000000751F0000-0x0000000075271000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
652	1668	WerFault.exe	27

Suspicious behavior: EnumeratesProcesses 4 IoCs

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
652	WerFault.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	652	WerFault.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1620 wrote to memory of 1668	1620	rundll32.exe	27
PID 1620 wrote to memory of 1668	1620	rundll32.exe	27
PID 1620 wrote to memory of 1668	1620	rundll32.exe	27
PID 1620 wrote to memory of 1668	1620	rundll32.exe	27
PID 1620 wrote to memory of 1668	1620	rundll32.exe	27
PID 1620 wrote to memory of 1668	1620	rundll32.exe	27
PID 1620 wrote to memory of 1668	1620	rundll32.exe	27
PID 1668 wrote to memory of 652	1668	rundll32.exe	28
PID 1668 wrote to memory of 652	1668	rundll32.exe	28
PID 1668 wrote to memory of 652	1668	rundll32.exe	28
PID 1668 wrote to memory of 652	1668	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4139e84d22c892452711f8af0d290776.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1620
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\4139e84d22c892452711f8af0d290776.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1668
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1668 -s 300
    3⤵
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:652

memory/652-61-0x0000000002200000-0x0000000002201000-memory.dmp

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memory/1668-56-0x0000000076921000-0x0000000076923000-memory.dmp

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memory/1668-57-0x00000000751F0000-0x0000000075271000-memory.dmp

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memory/1668-60-0x0000000000150000-0x0000000000156000-memory.dmp

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