dridex | 90b610193cd117ad8811fed559d01294c95fd4805a41b441e8a9e934cf0fbc21

General

Target

90b610193cd117ad8811fed559d01294c95fd4805a41b441e8a9e934cf0fbc21.dll
Size

196KB
MD5

b7579c3297f6185feac1aa98321543ba
SHA1

e16610eca90ebe398e06422e0ae40a829293b61c
SHA256

90b610193cd117ad8811fed559d01294c95fd4805a41b441e8a9e934cf0fbc21
SHA512

2d84fb8b2c88630c19c4ab010c1feab21793d4fa0acd3bf4047e519dd9dc69edae2e034f0e1b282d1f8c581776eaa8679ee841b0ff743756a00899064c7f9b60

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

37.247.35.132:443

50.243.30.51:6601

162.241.204.234:6516

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/2016-4-0x0000000074D60000-0x0000000074D93000-memory.dmp	dridex_ldr
behavioral1/memory/2016-6-0x0000000074D60000-0x0000000074D7F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

6 2016 rundll32.exe
8 2016 rundll32.exe
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
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

flow	pid	process
6	2016	rundll32.exe
8	2016	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 792 wrote to memory of 2016	792	rundll32.exe	rundll32.exe
PID 792 wrote to memory of 2016	792	rundll32.exe	rundll32.exe
PID 792 wrote to memory of 2016	792	rundll32.exe	rundll32.exe
PID 792 wrote to memory of 2016	792	rundll32.exe	rundll32.exe
PID 792 wrote to memory of 2016	792	rundll32.exe	rundll32.exe
PID 792 wrote to memory of 2016	792	rundll32.exe	rundll32.exe
PID 792 wrote to memory of 2016	792	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\90b610193cd117ad8811fed559d01294c95fd4805a41b441e8a9e934cf0fbc21.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:792

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\90b610193cd117ad8811fed559d01294c95fd4805a41b441e8a9e934cf0fbc21.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:2016

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/624-7-0x000007FEF7730000-0x000007FEF79AA000-memory.dmp

Filesize
2.5MB

Download
memory/2016-2-0x0000000000000000-mapping.dmp

Download
memory/2016-3-0x00000000765E1000-0x00000000765E3000-memory.dmp

Filesize
8KB

Download
memory/2016-4-0x0000000074D60000-0x0000000074D93000-memory.dmp

Filesize
204KB

Download
memory/2016-5-0x0000000000120000-0x0000000000126000-memory.dmp

Filesize
24KB

Download
memory/2016-6-0x0000000074D60000-0x0000000074D7F000-memory.dmp

Filesize
124KB

Download

Analysis

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