dridex | 3871b7e68b6d1ee2e34a0f291ac2cb7c1df109b809f630e9d1b83a6d3d40a39f

Analysis

max time kernel
19s
max time network
112s
platform
windows10_x64
resource
win10v20210410
submitted
24-06-2021 16:52

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General

Target

3871b7e68b6d1ee2e34a0f291ac2cb7c1df109b809f630e9d1b83a6d3d40a39f.dll
Size

160KB
MD5

9ae4af6fc19c187b5dc4078bcd23969e
SHA1

3951652c7a5107a1878c7f0cf17fccfb362cad3f
SHA256

3871b7e68b6d1ee2e34a0f291ac2cb7c1df109b809f630e9d1b83a6d3d40a39f
SHA512

d1b4c07fd274acb0f228a755183f2ad7955a6cb367dee9a0761acc9d7f467c8a0f7d2a0ec2bb79899de8c615818928369c8677a5650c31872ac94c98e5c26585

Score

10^/10

dridex 40111 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40111

94.247.168.64:443

159.203.93.122:8172

50.116.27.97:2303

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/4092-115-0x00000000735E0000-0x000000007360E000-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 3980 wrote to memory of 4092	3980	rundll32.exe	rundll32.exe
PID 3980 wrote to memory of 4092	3980	rundll32.exe	rundll32.exe
PID 3980 wrote to memory of 4092	3980	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3871b7e68b6d1ee2e34a0f291ac2cb7c1df109b809f630e9d1b83a6d3d40a39f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3980

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3871b7e68b6d1ee2e34a0f291ac2cb7c1df109b809f630e9d1b83a6d3d40a39f.dll,#1
2⤵
- Checks whether UAC is enabled
PID:4092

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/4092-114-0x0000000000000000-mapping.dmp

Download
memory/4092-115-0x00000000735E0000-0x000000007360E000-memory.dmp

Filesize
184KB

Download
memory/4092-117-0x0000000002920000-0x00000000029CE000-memory.dmp

Filesize
696KB

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