dridex | f256255f6d01648902513bb481bb95c5ee4cd5d128d60495c74d09e78f3fc912

Analysis

max time kernel
20s
max time network
117s
platform
windows10_x64
resource
win10v20210410
submitted
26-06-2021 09:04

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General

Target

f256255f6d01648902513bb481bb95c5ee4cd5d128d60495c74d09e78f3fc912.dll
Size

160KB
MD5

e7a16b7bbd9e5d60d6e7b098d6cf657e
SHA1

e98bc2ae9b15583d7c682e9861c57a9b29049c37
SHA256

f256255f6d01648902513bb481bb95c5ee4cd5d128d60495c74d09e78f3fc912
SHA512

13cf111ebe2c7bfc3eafed186b312c15a39d85380cf86a9164bd78141f4f56c5648b6423d47b6d1dc4d530ecad267c78c7ba186ddfd9c89697922f8b39772acd

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/4492-115-0x0000000074290000-0x00000000742BE000-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 4436 wrote to memory of 4492	4436	rundll32.exe	rundll32.exe
PID 4436 wrote to memory of 4492	4436	rundll32.exe	rundll32.exe
PID 4436 wrote to memory of 4492	4436	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f256255f6d01648902513bb481bb95c5ee4cd5d128d60495c74d09e78f3fc912.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4436

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f256255f6d01648902513bb481bb95c5ee4cd5d128d60495c74d09e78f3fc912.dll,#1
2⤵
- Checks whether UAC is enabled
PID:4492

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/4492-114-0x0000000000000000-mapping.dmp

Download
memory/4492-115-0x0000000074290000-0x00000000742BE000-memory.dmp

Filesize
184KB

Download
memory/4492-117-0x0000000001180000-0x0000000001186000-memory.dmp

Filesize
24KB

Download