dridex | fbd108648a43add9a2e400640f3e60a7f31971d748ad0e3f8531a17fa328e7c6

Analysis

max time kernel
150s
max time network
112s
platform
windows10_x64
resource
win10v20210410
submitted
27-07-2021 07:24

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General

Target

hsy_utu8_12u_v4.4.7.0.dll
Size

175KB
MD5

58bf730c02fb67e6de279877eb281925
SHA1

db2380c9d4e6ff9cd7dae6394f315753604adf6b
SHA256

fbd108648a43add9a2e400640f3e60a7f31971d748ad0e3f8531a17fa328e7c6
SHA512

b56283bc1a3f440d118e3c07b33dae78b4aca822fb18d195ed6754934cc210314a770cfede8d05b64357d785e75314c19f52a0e5c3841a69ca114e7936fd395f

Score

10^/10

dridex 22201 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

22201

45.79.33.48:443

139.162.202.74:5007

68.183.216.174:7443

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
behavioral2/memory/3776-116-0x00000000735D0000-0x0000000073600000-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 1496 wrote to memory of 3776	1496	rundll32.exe	rundll32.exe
PID 1496 wrote to memory of 3776	1496	rundll32.exe	rundll32.exe
PID 1496 wrote to memory of 3776	1496	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\hsy_utu8_12u_v4.4.7.0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1496

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\hsy_utu8_12u_v4.4.7.0.dll,#1
2⤵
- Checks whether UAC is enabled
PID:3776

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/3776-114-0x0000000000000000-mapping.dmp

Download
memory/3776-115-0x00000000004D0000-0x000000000057E000-memory.dmp

Filesize
696KB

Download
memory/3776-116-0x00000000735D0000-0x0000000073600000-memory.dmp

Filesize
192KB

Download