dridex | fd321dd675720bb14806eb4a24630461bc00c86e8fd240151dee42899081c9ff

Analysis

max time kernel
117s
max time network
123s
platform
windows10_x64
resource
win10-en-20211208
submitted
24-12-2021 10:07

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General

Target

fd321dd675720bb14806eb4a24630461bc00c86e8fd240151dee42899081c9ff.dll
Size

552KB
MD5

6389beefa606ecdf6dde97aa07adf91f
SHA1

e20eec6c39eecf9bbeb09fd4efaac98e8de0c2fb
SHA256

fd321dd675720bb14806eb4a24630461bc00c86e8fd240151dee42899081c9ff
SHA512

6d48db12e8fc7c7adb0ca69ef8e01d705d7f3aa135b740b8b6fc96922ec8150f09b7531c335890a328b1b453752469a12fc6b71df4913f106661a4e0fd387994

Score

10^/10

dridex 22201 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22201

144.91.122.102:443

85.10.248.28:593

185.4.135.27:5228

80.211.3.13:8116

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/2720-116-0x0000000073880000-0x000000007390C000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3684 2720 WerFault.exe rundll32.exe

pid	pid_target	process	target process
3684	2720	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
3684	WerFault.exe
3684	WerFault.exe
3684	WerFault.exe
3684	WerFault.exe
3684	WerFault.exe
3684	WerFault.exe
3684	WerFault.exe
3684	WerFault.exe
3684	WerFault.exe
3684	WerFault.exe
3684	WerFault.exe
3684	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 3684 WerFault.exe
Token: SeBackupPrivilege 3684 WerFault.exe
Token: SeDebugPrivilege 3684 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	3684	WerFault.exe
Token: SeBackupPrivilege	3684	WerFault.exe
Token: SeDebugPrivilege	3684	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2728 wrote to memory of 2720	2728	rundll32.exe	rundll32.exe
PID 2728 wrote to memory of 2720	2728	rundll32.exe	rundll32.exe
PID 2728 wrote to memory of 2720	2728	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fd321dd675720bb14806eb4a24630461bc00c86e8fd240151dee42899081c9ff.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2728

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fd321dd675720bb14806eb4a24630461bc00c86e8fd240151dee42899081c9ff.dll,#1
2⤵
PID:2720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2720 -s 628
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3684

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2720-115-0x0000000000000000-mapping.dmp

Download
memory/2720-116-0x0000000073880000-0x000000007390C000-memory.dmp

Filesize
560KB

Download
memory/2720-118-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download