dridex | b585a54184f3c933f4e0e38cadec4ada8950278bbdf69970b6f1539865772e36

Analysis

max time kernel
140s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20-12-2023 13:56

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General

Target

bea4379c47f02f88e77a690879a0d323.dll
Size

620KB
MD5

bea4379c47f02f88e77a690879a0d323
SHA1

d82c912a86a5ebedede1015cf0b814b2711e75a7
SHA256

b585a54184f3c933f4e0e38cadec4ada8950278bbdf69970b6f1539865772e36
SHA512

ca5841bab2f75ea13b1f8513cf9740cd7a2e60f401bd6425155711a2df0c697db4051298d9a51493011a65f3f6e4ca00ab82f51e3679424b0fbb0662a465af93
SSDEEP

12288:4E6rSiY4Gbs3j09TMmonCh5atbz9+eoQoUZpDd7Da1nX9y1RO/zFZx:ee6z3j0dMZnCutz4zI5xDwXU3m

Score

10^/10

dridex 10222 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10222

174.128.245.202:443

51.83.3.52:13786

69.64.50.41:6602

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex
Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

3 760 rundll32.exe
5 760 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
3	760	rundll32.exe
5	760	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 2660 wrote to memory of 760	2660	rundll32.exe	rundll32.exe
PID 2660 wrote to memory of 760	2660	rundll32.exe	rundll32.exe
PID 2660 wrote to memory of 760	2660	rundll32.exe	rundll32.exe
PID 2660 wrote to memory of 760	2660	rundll32.exe	rundll32.exe
PID 2660 wrote to memory of 760	2660	rundll32.exe	rundll32.exe
PID 2660 wrote to memory of 760	2660	rundll32.exe	rundll32.exe
PID 2660 wrote to memory of 760	2660	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bea4379c47f02f88e77a690879a0d323.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2660

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bea4379c47f02f88e77a690879a0d323.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/760-0-0x0000000000830000-0x0000000000969000-memory.dmp

Filesize
1.2MB

Download
memory/760-2-0x0000000000830000-0x0000000000969000-memory.dmp

Filesize
1.2MB

Download
memory/760-4-0x0000000000830000-0x0000000000969000-memory.dmp

Filesize
1.2MB

Download
memory/760-6-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/760-3-0x0000000000830000-0x0000000000969000-memory.dmp

Filesize
1.2MB

Download
memory/760-7-0x0000000000830000-0x0000000000969000-memory.dmp

Filesize
1.2MB

Download
memory/760-8-0x0000000000830000-0x0000000000969000-memory.dmp

Filesize
1.2MB

Download
memory/760-10-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download