dridex | 28ce2c4d838a1de5a8bbbd10fc8b7db21c82e306338ed40933f7e107bf2a5b06

Analysis

max time kernel
118s
max time network
139s
platform
windows10_x64
resource
win10-en-20210920
submitted
20-10-2021 20:34

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General

Target

5_SMSvcHost.resources.dll
Size

180KB
MD5

49b0e4b2386c4c7f9b0d3f8748bd34e8
SHA1

9450b46850cc52e1128e34e0639c57ed21034991
SHA256

28ce2c4d838a1de5a8bbbd10fc8b7db21c82e306338ed40933f7e107bf2a5b06
SHA512

501cc133f5c88f2fd450afd74f74c1d50d9da0ce9638e8c0894f7dc89057aacd41d4b3d0f8ebe798295d2cfad63ff5fea1499e4cdde0f523a82bf92e3a408b1e

Score

10^/10

dridex 22201 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22201

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/2264-116-0x0000000073DA0000-0x0000000073DCF000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4492 2264 WerFault.exe rundll32.exe

pid	pid_target	process	target process
4492	2264	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
4492	WerFault.exe
4492	WerFault.exe
4492	WerFault.exe
4492	WerFault.exe
4492	WerFault.exe
4492	WerFault.exe
4492	WerFault.exe
4492	WerFault.exe
4492	WerFault.exe
4492	WerFault.exe
4492	WerFault.exe
4492	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 4492 WerFault.exe
Token: SeBackupPrivilege 4492 WerFault.exe
Token: SeDebugPrivilege 4492 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	4492	WerFault.exe
Token: SeBackupPrivilege	4492	WerFault.exe
Token: SeDebugPrivilege	4492	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1512 wrote to memory of 2264	1512	rundll32.exe	rundll32.exe
PID 1512 wrote to memory of 2264	1512	rundll32.exe	rundll32.exe
PID 1512 wrote to memory of 2264	1512	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5_SMSvcHost.resources.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1512

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5_SMSvcHost.resources.dll,#1
2⤵
PID:2264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2264 -s 624
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4492

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2264-115-0x0000000000000000-mapping.dmp

Download
memory/2264-116-0x0000000073DA0000-0x0000000073DCF000-memory.dmp

Filesize
188KB

Download
memory/2264-118-0x00000000029F0000-0x00000000029F6000-memory.dmp

Filesize
24KB

Download