dridex | b35f2376e0ff745e1395bf2a15fe5d430fe956116cb893d721f2cd00ca87b374

Analysis

max time kernel
27s
max time network
11s
platform
windows7_x64
resource
win7v20210408
submitted
21-04-2021 17:10

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General

Target

b35f2376e0ff745e1395bf2a15fe5d430fe956116cb893d721f2cd00ca87b374.dll
Size

162KB
MD5

63a3fcf50bf531e517bea9e182a72bdb
SHA1

72963495607593630948b429b9a0c6f310206c5c
SHA256

b35f2376e0ff745e1395bf2a15fe5d430fe956116cb893d721f2cd00ca87b374
SHA512

b94aade7a8b0752207b36563d25db04fe75b288ae7d95429a76ac0615d6ff798c8b4af3735d90a246b43470387dfcf4ca1336d030f1f31c3fdd765fdb7729940

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

107.172.227.10:443

172.93.133.123:2303

108.168.61.147:8172

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/344-62-0x0000000075070000-0x000000007509E000-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 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1640 wrote to memory of 344	1640	rundll32.exe	rundll32.exe
PID 1640 wrote to memory of 344	1640	rundll32.exe	rundll32.exe
PID 1640 wrote to memory of 344	1640	rundll32.exe	rundll32.exe
PID 1640 wrote to memory of 344	1640	rundll32.exe	rundll32.exe
PID 1640 wrote to memory of 344	1640	rundll32.exe	rundll32.exe
PID 1640 wrote to memory of 344	1640	rundll32.exe	rundll32.exe
PID 1640 wrote to memory of 344	1640	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b35f2376e0ff745e1395bf2a15fe5d430fe956116cb893d721f2cd00ca87b374.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1640

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b35f2376e0ff745e1395bf2a15fe5d430fe956116cb893d721f2cd00ca87b374.dll,#1
2⤵
- Checks whether UAC is enabled
PID:344

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/344-60-0x0000000000000000-mapping.dmp

Download
memory/344-61-0x00000000769B1000-0x00000000769B3000-memory.dmp

Filesize
8KB

Download
memory/344-62-0x0000000075070000-0x000000007509E000-memory.dmp

Filesize
184KB

Download
memory/344-64-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download