dridex | c8344e4ee2de8d92eede0c6b97e003a0e277d6bee5b86181dc85d78ead98a66d

Analysis

max time kernel
77s
max time network
139s
platform
windows10_x64
resource
win10-en-20211014
submitted
18-10-2021 20:02

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General

Target

c8344e4ee2de8d92eede0c6b97e003a0e277d6bee5b86181dc85d78ead98a66d.dll
Size

244KB
MD5

a1818a3243826176732e5dc4a15a0ff5
SHA1

590dca3c55f9b0e42a7b46ed1c42b19509f62c33
SHA256

c8344e4ee2de8d92eede0c6b97e003a0e277d6bee5b86181dc85d78ead98a66d
SHA512

1025acb4b38b40c852a073350d3b597658d6a1d1896e5b7a9391d875fdd3c663ce67af43c42067525f4022007180c67fe1873f21f4198e51641f4647e4ab3243

Score

10^/10

dridex 22201 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22201

195.154.146.84:443

45.56.121.87:8116

157.245.222.44:5723

rc4.plain

Signatures

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.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/752-120-0x0000000073C20000-0x0000000073C4F000-memory.dmp	dridex_ldr
behavioral1/memory/752-121-0x0000000073C20000-0x0000000073C5E000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4520 752 WerFault.exe rundll32.exe

pid	pid_target	process	target process
4520	752	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
4520	WerFault.exe
4520	WerFault.exe
4520	WerFault.exe
4520	WerFault.exe
4520	WerFault.exe
4520	WerFault.exe
4520	WerFault.exe
4520	WerFault.exe
4520	WerFault.exe
4520	WerFault.exe
4520	WerFault.exe
4520	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 4520 WerFault.exe
Token: SeBackupPrivilege 4520 WerFault.exe
Token: SeDebugPrivilege 4520 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	4520	WerFault.exe
Token: SeBackupPrivilege	4520	WerFault.exe
Token: SeDebugPrivilege	4520	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3392 wrote to memory of 752	3392	rundll32.exe	rundll32.exe
PID 3392 wrote to memory of 752	3392	rundll32.exe	rundll32.exe
PID 3392 wrote to memory of 752	3392	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c8344e4ee2de8d92eede0c6b97e003a0e277d6bee5b86181dc85d78ead98a66d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3392

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c8344e4ee2de8d92eede0c6b97e003a0e277d6bee5b86181dc85d78ead98a66d.dll,#1
2⤵
PID:752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 752 -s 616
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4520

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/752-115-0x0000000000000000-mapping.dmp

Download
memory/752-116-0x0000000073C20000-0x0000000073C5E000-memory.dmp

Filesize
248KB

Download
memory/752-119-0x0000000000500000-0x0000000000506000-memory.dmp

Filesize
24KB

Download
memory/752-120-0x0000000073C20000-0x0000000073C4F000-memory.dmp

Filesize
188KB

Download
memory/752-121-0x0000000073C20000-0x0000000073C5E000-memory.dmp

Filesize
248KB

Download
memory/752-122-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download