dridex | e4db910a4147ac44bef76f71e6b0d6bd193b89a6268dda35f3b1c210cc111fe4

Analysis

max time kernel
120s
max time network
122s
platform
windows10_x64
resource
win10-en-20211208
submitted
26-12-2021 15:37

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General

Target

e4db910a4147ac44bef76f71e6b0d6bd193b89a6268dda35f3b1c210cc111fe4.dll
Size

524KB
MD5

47c59530065e8e7e05a855879bf8a922
SHA1

8fba3ea2428f92e8dc8497514d0817b54edc5be0
SHA256

e4db910a4147ac44bef76f71e6b0d6bd193b89a6268dda35f3b1c210cc111fe4
SHA512

c99e35f6313aa75f24b7bdb1cc9e91eb7246dd7cd79de9c18f50d1f6ee27984ff075c108d1025e16dbd6d03087d11bcb6f927c5773e8a03d7bdd02c204782a42

Score

10^/10

dridex 22201 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22201

104.36.167.47:443

188.40.48.93:4664

162.241.33.132:9217

217.160.5.104:593

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
behavioral1/memory/3832-116-0x0000000073640000-0x00000000736C5000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4384 3832 WerFault.exe rundll32.exe

pid	pid_target	process	target process
4384	3832	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
4384	WerFault.exe
4384	WerFault.exe
4384	WerFault.exe
4384	WerFault.exe
4384	WerFault.exe
4384	WerFault.exe
4384	WerFault.exe
4384	WerFault.exe
4384	WerFault.exe
4384	WerFault.exe
4384	WerFault.exe
4384	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 4384 WerFault.exe
Token: SeBackupPrivilege 4384 WerFault.exe
Token: SeDebugPrivilege 4384 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	4384	WerFault.exe
Token: SeBackupPrivilege	4384	WerFault.exe
Token: SeDebugPrivilege	4384	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3824 wrote to memory of 3832	3824	rundll32.exe	rundll32.exe
PID 3824 wrote to memory of 3832	3824	rundll32.exe	rundll32.exe
PID 3824 wrote to memory of 3832	3824	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e4db910a4147ac44bef76f71e6b0d6bd193b89a6268dda35f3b1c210cc111fe4.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3824

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e4db910a4147ac44bef76f71e6b0d6bd193b89a6268dda35f3b1c210cc111fe4.dll,#1
2⤵
PID:3832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3832 -s 700
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4384

Network

MITRE ATT&CK Matrix

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Downloads

memory/3832-115-0x0000000000000000-mapping.dmp

Download
memory/3832-116-0x0000000073640000-0x00000000736C5000-memory.dmp

Filesize
532KB

Download
memory/3832-118-0x00000000032B0000-0x00000000033FA000-memory.dmp

Filesize
1.3MB

Download