dridex | a9b7a1af4d434b6ce90012bf7ece4783b9946d82a642f10616381dcf77e4d405

Analysis

max time kernel
18s
max time network
112s
platform
windows10_x64
resource
win10v20210410
submitted
25-06-2021 03:29

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General

Target

a9b7a1af4d434b6ce90012bf7ece4783b9946d82a642f10616381dcf77e4d405.dll
Size

160KB
MD5

77edd4c7334b33fdd36c3ff76107e547
SHA1

6f31355d2c83467ecd60abd07fdf998078c86ef0
SHA256

a9b7a1af4d434b6ce90012bf7ece4783b9946d82a642f10616381dcf77e4d405
SHA512

5f853d5f4768a43fd03e8c38423396b10e661dca237b743d1dcb55d9c07b6c4e3623e5f1efd0b0d6382c026ca741a4e922978088b18337dce80ccd51dc983c69

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/2184-115-0x00000000739B0000-0x00000000739DE000-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 3920 wrote to memory of 2184	3920	rundll32.exe	rundll32.exe
PID 3920 wrote to memory of 2184	3920	rundll32.exe	rundll32.exe
PID 3920 wrote to memory of 2184	3920	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9b7a1af4d434b6ce90012bf7ece4783b9946d82a642f10616381dcf77e4d405.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3920

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9b7a1af4d434b6ce90012bf7ece4783b9946d82a642f10616381dcf77e4d405.dll,#1
2⤵
- Checks whether UAC is enabled
PID:2184

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/2184-114-0x0000000000000000-mapping.dmp

Download
memory/2184-115-0x00000000739B0000-0x00000000739DE000-memory.dmp

Filesize
184KB

Download
memory/2184-117-0x0000000000A00000-0x0000000000A06000-memory.dmp

Filesize
24KB

Download