dridex | cdffcf8b49e3596efb3e9257fc1b6431d0f16302a393b07bad15b9283803a84b

Analysis

max time kernel
30s
max time network
151s
platform
windows10_x64
resource
win10v20210408
submitted
22-06-2021 16:21

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General

Target

cdffcf8b49e3596efb3e9257fc1b6431d0f16302a393b07bad15b9283803a84b.dll
Size

160KB
MD5

8234b02652afc8b542aee879eebdbe32
SHA1

645da6df5a5c2183ecd725c3c1a5937b38a5a7bf
SHA256

cdffcf8b49e3596efb3e9257fc1b6431d0f16302a393b07bad15b9283803a84b
SHA512

8a314165e875e34fdab655dac8f30b8323f99a5e7c492a3df3a2e18e4ea1911af7808ab1c01590c659cd16021a9063ddc1d1882bd557da68a96588a721db099a

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/1444-115-0x0000000073C70000-0x0000000073C9E000-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 396 wrote to memory of 1444	396	rundll32.exe	rundll32.exe
PID 396 wrote to memory of 1444	396	rundll32.exe	rundll32.exe
PID 396 wrote to memory of 1444	396	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cdffcf8b49e3596efb3e9257fc1b6431d0f16302a393b07bad15b9283803a84b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:396

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cdffcf8b49e3596efb3e9257fc1b6431d0f16302a393b07bad15b9283803a84b.dll,#1
2⤵
- Checks whether UAC is enabled
PID:1444

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/1444-114-0x0000000000000000-mapping.dmp

Download
memory/1444-115-0x0000000073C70000-0x0000000073C9E000-memory.dmp

Filesize
184KB

Download
memory/1444-117-0x0000000000E70000-0x0000000000E76000-memory.dmp

Filesize
24KB

Download