dridex | f7bd689d5b2286198c6f9dcb89b0772c0feb4e1b2e5a89adcded8b3802dcfc94

Analysis

max time kernel
32s
max time network
62s
platform
windows7_x64
resource
win7v20210408
submitted
11-05-2021 13:42

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General

Target

f7bd689d5b2286198c6f9dcb89b0772c0feb4e1b2e5a89adcded8b3802dcfc94.dll
Size

158KB
MD5

70429bb6b80d31decd97bd36fa8bb414
SHA1

6f3d537ac212d52b9aa3467a081b37a7e7da19f6
SHA256

f7bd689d5b2286198c6f9dcb89b0772c0feb4e1b2e5a89adcded8b3802dcfc94
SHA512

159b6c54b5485f7344fd605441b206f9d5cc1c24febb9acf32759a45260ec496a8b5cd2e07558a9ee4b3249eac6b2b3fc78a8ebaafe3bc7f966148f9f5383b0b

Score

10^/10

dridex 40111 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40111

8.210.53.215:443

72.249.22.245:2303

188.40.137.206:8172

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/1904-62-0x0000000074890000-0x00000000748BD000-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 684 wrote to memory of 1904	684	rundll32.exe	rundll32.exe
PID 684 wrote to memory of 1904	684	rundll32.exe	rundll32.exe
PID 684 wrote to memory of 1904	684	rundll32.exe	rundll32.exe
PID 684 wrote to memory of 1904	684	rundll32.exe	rundll32.exe
PID 684 wrote to memory of 1904	684	rundll32.exe	rundll32.exe
PID 684 wrote to memory of 1904	684	rundll32.exe	rundll32.exe
PID 684 wrote to memory of 1904	684	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f7bd689d5b2286198c6f9dcb89b0772c0feb4e1b2e5a89adcded8b3802dcfc94.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:684

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f7bd689d5b2286198c6f9dcb89b0772c0feb4e1b2e5a89adcded8b3802dcfc94.dll,#1
2⤵
- Checks whether UAC is enabled
PID:1904

Network

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/1904-60-0x0000000000000000-mapping.dmp

Download
memory/1904-61-0x0000000075C71000-0x0000000075C73000-memory.dmp

Filesize
8KB

Download
memory/1904-62-0x0000000074890000-0x00000000748BD000-memory.dmp

Filesize
180KB

Download
memory/1904-64-0x00000000001B0000-0x00000000001B6000-memory.dmp

Filesize
24KB

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