dridex | 3539de41885917911eebc21060889172d30fe30c3e114a59b6d379455a28383a

Analysis

max time kernel
144s
max time network
146s
platform
windows10_x64
resource
win10v20210410
submitted
11-05-2021 10:37

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General

Target

3539de41885917911eebc21060889172d30fe30c3e114a59b6d379455a28383a.dll
Size

162KB
MD5

bbeb839620a99cdaac38516841fbe86a
SHA1

d78c0b607a8a6ab0271c1cd2e0ef7358906ff153
SHA256

3539de41885917911eebc21060889172d30fe30c3e114a59b6d379455a28383a
SHA512

df8e3f922775c447f373f39973a5dc4b312bf16b21cc4a462b79676862b143474c997c717079b0fd698d696f295ee1993ff955f5274569d4c7a7c25980ad7e16

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

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
behavioral2/memory/1856-115-0x0000000074420000-0x000000007444E000-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 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2388 wrote to memory of 1856	2388	rundll32.exe	rundll32.exe
PID 2388 wrote to memory of 1856	2388	rundll32.exe	rundll32.exe
PID 2388 wrote to memory of 1856	2388	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3539de41885917911eebc21060889172d30fe30c3e114a59b6d379455a28383a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2388

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3539de41885917911eebc21060889172d30fe30c3e114a59b6d379455a28383a.dll,#1
2⤵
- Checks whether UAC is enabled
PID:1856

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/1856-114-0x0000000000000000-mapping.dmp

Download
memory/1856-115-0x0000000074420000-0x000000007444E000-memory.dmp

Filesize
184KB

Download
memory/1856-117-0x00000000033E0000-0x00000000033E6000-memory.dmp

Filesize
24KB

Download