dridex | e265bbda199d75b564b823038f80d49c1df46ccdb6953f72676df555847edd60

Analysis

max time kernel
34s
max time network
113s
platform
windows10_x64
resource
win10v20201028
submitted
25-02-2021 06:45

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General

Target

e265bbda199d75b564b823038f80d49c1df46ccdb6953f72676df555847edd60.dll
Size

188KB
MD5

0a5c4f1b33c91de478499f3ee58dcabf
SHA1

3645ba3eb69558119354189a0c132d5cc781d749
SHA256

e265bbda199d75b564b823038f80d49c1df46ccdb6953f72676df555847edd60
SHA512

8659421da509b15c6dd2387b7ab8508ebf3acaa4f1148fed69ada454d7cd44b3eb61d87d34032fd887222294c53f1a1c26770afb33408540ba2c4877ce594fc0

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

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
behavioral2/memory/1168-3-0x00000000743E0000-0x0000000074411000-memory.dmp	dridex_ldr
behavioral2/memory/1168-5-0x00000000743E0000-0x00000000743FF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

15 1168 rundll32.exe
17 1168 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
15	1168	rundll32.exe
17	1168	rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 644 wrote to memory of 1168	644	rundll32.exe	rundll32.exe
PID 644 wrote to memory of 1168	644	rundll32.exe	rundll32.exe
PID 644 wrote to memory of 1168	644	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e265bbda199d75b564b823038f80d49c1df46ccdb6953f72676df555847edd60.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:644

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e265bbda199d75b564b823038f80d49c1df46ccdb6953f72676df555847edd60.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1168

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1168-2-0x0000000000000000-mapping.dmp

Download
memory/1168-3-0x00000000743E0000-0x0000000074411000-memory.dmp

Filesize
196KB

Download
memory/1168-4-0x0000000004B40000-0x0000000004B46000-memory.dmp

Filesize
24KB

Download
memory/1168-5-0x00000000743E0000-0x00000000743FF000-memory.dmp

Filesize
124KB

Download