dridex | ced88a781a18875bea55ccbf9dcc043cb400bd2c3f35afed8b0a6a2f33290991

Analysis

max time kernel
129s
max time network
203s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
31-07-2022 05:06

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General

Target

bo2bck.dll
Size

373KB
MD5

8abd17bb45aaf7ded8caa930b60d38ef
SHA1

088e885d29c4ab954b98ee85c361dc4592416a01
SHA256

ced88a781a18875bea55ccbf9dcc043cb400bd2c3f35afed8b0a6a2f33290991
SHA512

5d6b41cd63b362dcec6b99426492b1b742e50c8544dae70a8088d5d36c9c33712e6404f674ed389dc4f8d8b3567b5913d08b55761456fbdbac4de7413e1b2759

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

210.65.244.179:443

37.247.35.130:6601

103.18.108.116:6601

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 1172 rundll32.exe
5 1172 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	1172	rundll32.exe
5	1172	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 2040 wrote to memory of 1172	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1172	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1172	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1172	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1172	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1172	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1172	2040	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bo2bck.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2040

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bo2bck.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1172

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

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Downloads

memory/1172-54-0x0000000000000000-mapping.dmp

Download
memory/1172-55-0x0000000075CB1000-0x0000000075CB3000-memory.dmp

Filesize
8KB

Download
memory/1172-57-0x00000000750B0000-0x000000007516C000-memory.dmp

Filesize
752KB

Download
memory/1172-56-0x00000000750B0000-0x00000000750ED000-memory.dmp

Filesize
244KB

Download
memory/1172-59-0x00000000750B0000-0x000000007516C000-memory.dmp

Filesize
752KB

Download
memory/1172-60-0x00000000750B0000-0x000000007516C000-memory.dmp

Filesize
752KB

Download