dridex | f659c432455dc81f8c96241c8f8162ec434b94990b01f4c9f15def6ca4024226

Analysis

max time kernel
27s
max time network
13s
platform
windows7_x64
resource
win7v20210408
submitted
21-04-2021 17:27

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General

Target

f659c432455dc81f8c96241c8f8162ec434b94990b01f4c9f15def6ca4024226.dll
Size

161KB
MD5

da84d7ac02db6cd41d04afcda1cb58ce
SHA1

81eafd3021aa80a20a1be29fac8c0082ad4e1f40
SHA256

f659c432455dc81f8c96241c8f8162ec434b94990b01f4c9f15def6ca4024226
SHA512

0ffd4333cbeb2a4d00e1679fff26f50ef34d6db3741ef312888b313b8a68e8ccce9f3344a9174c94dcbf71d031ea35a0f0aa3393fc52bc1883f99eab8dece87c

Score

10^/10

dridex 40111 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40111

107.172.227.10:443

172.93.133.123:2303

108.168.61.147:8172

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/1604-62-0x0000000075330000-0x000000007535E000-memory.dmp	dridex_ldr

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1796 wrote to memory of 1604	1796	rundll32.exe	rundll32.exe
PID 1796 wrote to memory of 1604	1796	rundll32.exe	rundll32.exe
PID 1796 wrote to memory of 1604	1796	rundll32.exe	rundll32.exe
PID 1796 wrote to memory of 1604	1796	rundll32.exe	rundll32.exe
PID 1796 wrote to memory of 1604	1796	rundll32.exe	rundll32.exe
PID 1796 wrote to memory of 1604	1796	rundll32.exe	rundll32.exe
PID 1796 wrote to memory of 1604	1796	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f659c432455dc81f8c96241c8f8162ec434b94990b01f4c9f15def6ca4024226.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1796

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f659c432455dc81f8c96241c8f8162ec434b94990b01f4c9f15def6ca4024226.dll,#1
2⤵
- Checks whether UAC is enabled
PID:1604

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1604-60-0x0000000000000000-mapping.dmp

Download
memory/1604-61-0x0000000076A01000-0x0000000076A03000-memory.dmp

Filesize
8KB

Download
memory/1604-62-0x0000000075330000-0x000000007535E000-memory.dmp

Filesize
184KB

Download
memory/1604-64-0x0000000000150000-0x0000000000156000-memory.dmp

Filesize
24KB

Download