dridex | deb17df5c51fdea65b3d342426ab48560633ead10438762c9baec0aebecf2ad4

Analysis

max time kernel
121s
max time network
138s
platform
windows10_x64
resource
win10-en-20210920
submitted
21-10-2021 14:01

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General

Target

8_System.ServiceModel.Channels.ni.dll
Size

180KB
MD5

af32e0c03835e1d21cb9c23dffb94198
SHA1

ab7f8557a2d75c313f79ae3f0a4d090d74ba30d1
SHA256

deb17df5c51fdea65b3d342426ab48560633ead10438762c9baec0aebecf2ad4
SHA512

8d3eb4269b33514442d04b8aabe2ed173f9c6179bccf3bf8ab285ae10236b17d20564f7d5da15390da45d6a29518696f0d071eb9133d36af2048f764ea88d5e8

Score

10^/10

dridex 22202 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22202

155.138.203.91:443

207.180.220.242:8116

46.101.142.214:6891

rc4.plain

Signatures

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.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/3696-116-0x00000000740E0000-0x000000007410F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

820 3696 WerFault.exe rundll32.exe

pid	pid_target	process	target process
820	3696	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
820	WerFault.exe
820	WerFault.exe
820	WerFault.exe
820	WerFault.exe
820	WerFault.exe
820	WerFault.exe
820	WerFault.exe
820	WerFault.exe
820	WerFault.exe
820	WerFault.exe
820	WerFault.exe
820	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 820 WerFault.exe
Token: SeBackupPrivilege 820 WerFault.exe
Token: SeDebugPrivilege 820 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	820	WerFault.exe
Token: SeBackupPrivilege	820	WerFault.exe
Token: SeDebugPrivilege	820	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2872 wrote to memory of 3696	2872	rundll32.exe	rundll32.exe
PID 2872 wrote to memory of 3696	2872	rundll32.exe	rundll32.exe
PID 2872 wrote to memory of 3696	2872	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8_System.ServiceModel.Channels.ni.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2872

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8_System.ServiceModel.Channels.ni.dll,#1
2⤵
PID:3696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 616
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:820

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/3696-115-0x0000000000000000-mapping.dmp

Download
memory/3696-116-0x00000000740E0000-0x000000007410F000-memory.dmp

Filesize
188KB

Download
memory/3696-118-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download