dridex | cabc93925c2ba66db79e66fcb9adc1236a8851a3ac4d94638db2c13f9cb10dbc

General

Target

cabc93925c2ba66db79e66fcb9adc1236a8851a3ac4d94638db2c13f9cb10dbc.dll
Size

168KB
MD5

2e18d0fc31d4d1f5ae8c6e72ccdcad7f
SHA1

39e92914570abf24da063452f11099fbbb1f8330
SHA256

cabc93925c2ba66db79e66fcb9adc1236a8851a3ac4d94638db2c13f9cb10dbc
SHA512

5be4feb47da3584932dcd20fcfc9ed612c4c71b91a0490a76e368ad31c406a65feec2e7d3e3b9b2418fa49d81ad8688150a9bceffe195de0f6545e3b14ef6929

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

173.203.78.138:443

217.160.107.189:6601

77.220.64.150:5037

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/1656-4-0x0000000074AF0000-0x0000000074B1C000-memory.dmp	dridex_ldr
behavioral1/memory/1656-6-0x0000000074AF0000-0x0000000074B0F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

6 1656 rundll32.exe
8 1656 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	1656	rundll32.exe
8	1656	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 1656	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1656	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1656	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1656	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1656	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1656	1108	rundll32.exe	rundll32.exe
PID 1108 wrote to memory of 1656	1108	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cabc93925c2ba66db79e66fcb9adc1236a8851a3ac4d94638db2c13f9cb10dbc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1108

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cabc93925c2ba66db79e66fcb9adc1236a8851a3ac4d94638db2c13f9cb10dbc.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1656

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/1376-7-0x000007FEF7510000-0x000007FEF778A000-memory.dmp

Filesize
2.5MB

Download
memory/1656-2-0x0000000000000000-mapping.dmp

Download
memory/1656-3-0x00000000760D1000-0x00000000760D3000-memory.dmp

Filesize
8KB

Download
memory/1656-4-0x0000000074AF0000-0x0000000074B1C000-memory.dmp

Filesize
176KB

Download
memory/1656-5-0x0000000000190000-0x0000000000196000-memory.dmp

Filesize
24KB

Download
memory/1656-6-0x0000000074AF0000-0x0000000074B0F000-memory.dmp

Filesize
124KB

Download

Analysis

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