dridex | 638fc1732b46ce4741747d411bc2cfafd398139d50b314b6f8bba7d0b9c854f8

Analysis

max time kernel
26s
max time network
134s
platform
windows10_x64
resource
win10v20210408
submitted
25-06-2021 09:03

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General

Target

638fc1732b46ce4741747d411bc2cfafd398139d50b314b6f8bba7d0b9c854f8.dll
Size

160KB
MD5

492b8a56d47e0eeb6bf239b07c6b04af
SHA1

de24beb1446b8fca44dd80ce08441500c1d44156
SHA256

638fc1732b46ce4741747d411bc2cfafd398139d50b314b6f8bba7d0b9c854f8
SHA512

321a7e7a7dc512bf12aaff05786910761603e2b167a40f694e0dece4e27476d2174c02fb0e65be3ebb22ccecb5128fcda02b8f0b61fb33bb17d0def293d37540

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/2192-115-0x0000000073990000-0x00000000739BE000-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 1404 wrote to memory of 2192	1404	rundll32.exe	rundll32.exe
PID 1404 wrote to memory of 2192	1404	rundll32.exe	rundll32.exe
PID 1404 wrote to memory of 2192	1404	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\638fc1732b46ce4741747d411bc2cfafd398139d50b314b6f8bba7d0b9c854f8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1404

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\638fc1732b46ce4741747d411bc2cfafd398139d50b314b6f8bba7d0b9c854f8.dll,#1
2⤵
- Checks whether UAC is enabled
PID:2192

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2192-114-0x0000000000000000-mapping.dmp

Download
memory/2192-115-0x0000000073990000-0x00000000739BE000-memory.dmp

Filesize
184KB

Download
memory/2192-117-0x0000000003390000-0x0000000003396000-memory.dmp

Filesize
24KB

Download