dridex | b8bd29d2b1c2f91e4a562f8c60939f7a0f6d127010671df0e9404f40b7a20773

Analysis

max time kernel
86s
max time network
112s
platform
windows10_x64
resource
win10v20210410
submitted
21-04-2021 18:07

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General

Target

b8bd29d2b1c2f91e4a562f8c60939f7a0f6d127010671df0e9404f40b7a20773.dll
Size

154KB
MD5

436df320d77e5fca54925e15aefb9c6a
SHA1

99b54bd34838dad7a16acc80c125be7574be5db2
SHA256

b8bd29d2b1c2f91e4a562f8c60939f7a0f6d127010671df0e9404f40b7a20773
SHA512

5d33c0a626f84cc619d87b3310f2b808357118d746f8275c9ad1c3d2a8fd0d781a413e488b0973a21a33dc35573e103f2971fb2cf21059fab05c83dda80ba9d3

Score

10^/10

dridex 40111 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40111

159.8.59.82:443

51.91.156.39:2303

67.196.50.240:8172

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/2220-115-0x0000000074420000-0x000000007444D000-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 3212 wrote to memory of 2220	3212	rundll32.exe	rundll32.exe
PID 3212 wrote to memory of 2220	3212	rundll32.exe	rundll32.exe
PID 3212 wrote to memory of 2220	3212	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b8bd29d2b1c2f91e4a562f8c60939f7a0f6d127010671df0e9404f40b7a20773.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3212
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b8bd29d2b1c2f91e4a562f8c60939f7a0f6d127010671df0e9404f40b7a20773.dll,#1
  2⤵
  - Checks whether UAC is enabled
  PID:2220

Network

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/2220-114-0x0000000000000000-mapping.dmp

Download
memory/2220-115-0x0000000074420000-0x000000007444D000-memory.dmp

Filesize
180KB

Download
memory/2220-117-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

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