dridex | dc2f5832d15959bc2987e41a3e59cec2a9748ad0351f89c0e99a17db2c116c18

General

Target

dc2f5832d15959bc2987e41a3e59cec2a9748ad0351f89c0e99a17db2c116c18.dll
Size

188KB
MD5

3c12d7d2166bcf88edbf5ea6d83fdf6f
SHA1

743666c493d8b5613f4e89b930ddd8f37203931d
SHA256

dc2f5832d15959bc2987e41a3e59cec2a9748ad0351f89c0e99a17db2c116c18
SHA512

2913e3470011e0628e79dc96f82d600628b7d501858023f4a486a86afa2b372db91123ee181c75f53da127828a27cb3675d23f734066876fc397fd02fb14ddb5

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

116.251.211.158:443

216.10.242.142:6601

37.247.35.137:6601

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/1844-4-0x0000000074700000-0x0000000074731000-memory.dmp	dridex_ldr
behavioral1/memory/1844-6-0x0000000074700000-0x000000007471F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

5 1844 rundll32.exe
8 1844 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
5	1844	rundll32.exe
8	1844	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 1044 wrote to memory of 1844	1044	rundll32.exe	rundll32.exe
PID 1044 wrote to memory of 1844	1044	rundll32.exe	rundll32.exe
PID 1044 wrote to memory of 1844	1044	rundll32.exe	rundll32.exe
PID 1044 wrote to memory of 1844	1044	rundll32.exe	rundll32.exe
PID 1044 wrote to memory of 1844	1044	rundll32.exe	rundll32.exe
PID 1044 wrote to memory of 1844	1044	rundll32.exe	rundll32.exe
PID 1044 wrote to memory of 1844	1044	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dc2f5832d15959bc2987e41a3e59cec2a9748ad0351f89c0e99a17db2c116c18.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1044

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dc2f5832d15959bc2987e41a3e59cec2a9748ad0351f89c0e99a17db2c116c18.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1844

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/1616-7-0x000007FEF77C0000-0x000007FEF7A3A000-memory.dmp

Filesize
2.5MB

Download
memory/1844-2-0x0000000000000000-mapping.dmp

Download
memory/1844-3-0x00000000760A1000-0x00000000760A3000-memory.dmp

Filesize
8KB

Download
memory/1844-4-0x0000000074700000-0x0000000074731000-memory.dmp

Filesize
196KB

Download
memory/1844-5-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download
memory/1844-6-0x0000000074700000-0x000000007471F000-memory.dmp

Filesize
124KB

Download

Analysis

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