dridex | f4f3228f55ed310da0960219d5b2b497c5c76ec1fe5059160136791649158917

General

Target

2bb45dd8c9f7f648266a608649033f4c.dll
Size

196KB
MD5

2bb45dd8c9f7f648266a608649033f4c
SHA1

4b734ef266d0f2049d0408ec6548b08a3f922cc7
SHA256

f4f3228f55ed310da0960219d5b2b497c5c76ec1fe5059160136791649158917
SHA512

97b8262d9dbbecdfad08f9273f2cac75efb3c5cb0a930473f4bc55d7c595f24007ea1940ebf4c509c315f35c2178759ebc8eff56acd65b4ef7465918290cffb7

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/1912-4-0x0000000074AD0000-0x0000000074B03000-memory.dmp	dridex_ldr
behavioral1/memory/1912-6-0x0000000074AD0000-0x0000000074AEF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

6 1912 rundll32.exe
8 1912 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	1912	rundll32.exe
8	1912	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 1108 wrote to memory of 1912	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1912	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1912	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1912	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1912	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1912	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1912	1108	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2bb45dd8c9f7f648266a608649033f4c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1108

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2bb45dd8c9f7f648266a608649033f4c.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1912

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/896-7-0x000007FEF7510000-0x000007FEF778A000-memory.dmp

Filesize
2.5MB

Download
memory/1912-2-0x0000000000000000-mapping.dmp

Download
memory/1912-3-0x00000000760D1000-0x00000000760D3000-memory.dmp

Filesize
8KB

Download
memory/1912-4-0x0000000074AD0000-0x0000000074B03000-memory.dmp

Filesize
204KB

Download
memory/1912-5-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1912-6-0x0000000074AD0000-0x0000000074AEF000-memory.dmp

Filesize
124KB

Download

Analysis

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