dridex | 1fc05a06a468c60eaef126a45b6b17e5bf31580c922f4ffd5787d2eeb1648a81

General

Target

1fc05a06a468c60eaef126a45b6b17e5bf31580c922f4ffd5787d2eeb1648a81.dll
Size

188KB
MD5

6a6372d9817a2ff4d90dde4ed5aa3443
SHA1

d462cd6e6302b769429e5c65bb6fcd3c4bc0e4c9
SHA256

1fc05a06a468c60eaef126a45b6b17e5bf31580c922f4ffd5787d2eeb1648a81
SHA512

c5e5bde36ffb5de5f1468184aacebbcc7e1ceb45fd97631807b00f8166b8a0ebd5837baeb157f5c00e7c857b6d8db389098f6cdfa498b91488c149aedbcd7912

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

209.151.236.42:443

91.121.94.86:8172

5.189.144.136:6516

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/1636-5-0x0000000074EF0000-0x0000000074F21000-memory.dmp	dridex_ldr
behavioral1/memory/1636-7-0x0000000074EF0000-0x0000000074F0F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

5 1636 rundll32.exe
8 1636 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	1636	rundll32.exe
8	1636	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 2044 wrote to memory of 1636	2044	rundll32.exe	rundll32.exe
PID 2044 wrote to memory of 1636	2044	rundll32.exe	rundll32.exe
PID 2044 wrote to memory of 1636	2044	rundll32.exe	rundll32.exe
PID 2044 wrote to memory of 1636	2044	rundll32.exe	rundll32.exe
PID 2044 wrote to memory of 1636	2044	rundll32.exe	rundll32.exe
PID 2044 wrote to memory of 1636	2044	rundll32.exe	rundll32.exe
PID 2044 wrote to memory of 1636	2044	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1fc05a06a468c60eaef126a45b6b17e5bf31580c922f4ffd5787d2eeb1648a81.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2044

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1fc05a06a468c60eaef126a45b6b17e5bf31580c922f4ffd5787d2eeb1648a81.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1636

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/1636-2-0x0000000000000000-mapping.dmp

Download
memory/1636-3-0x0000000075251000-0x0000000075253000-memory.dmp

Filesize
8KB

Download
memory/1636-4-0x0000000074B80000-0x0000000074D23000-memory.dmp

Filesize
1.6MB

Download
memory/1636-5-0x0000000074EF0000-0x0000000074F21000-memory.dmp

Filesize
196KB

Download
memory/1636-6-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1636-7-0x0000000074EF0000-0x0000000074F0F000-memory.dmp

Filesize
124KB

Download
memory/1928-8-0x000007FEF6510000-0x000007FEF678A000-memory.dmp

Filesize
2.5MB

Download

Analysis

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