dridex | f4e65ecea469214769a863058823613437eb066a0baf40b5f9342958fce1e7a7

Analysis

max time kernel
9s
max time network
66s
platform
windows7_x64
resource
win7v20201028
submitted
18-11-2020 12:37

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General

Target

cm5xssc78.dll
Size

539KB
MD5

cf9c14ef002b286cc5b6f40e24430857
SHA1

8ab38ccaf47cdfaf5bd48b05d7c094f28aa17b0d
SHA256

f4e65ecea469214769a863058823613437eb066a0baf40b5f9342958fce1e7a7
SHA512

1c3f18cf81ddc5fc7729e184e9021202bc395b11fc3273be25961de7713307a9d5eeb62c2870481410bafa0d68972050dd659882b2fc610dd465e4151d8b207a

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

162.241.44.26:9443

192.232.229.53:4443

77.220.64.34:443

193.90.12.121:3098

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/1960-1-0x00000000009B0000-0x00000000009ED000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

3 1960 rundll32.exe
6 1960 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	1960	rundll32.exe
6	1960	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 1664 wrote to memory of 1960	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1960	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1960	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1960	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1960	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1960	1664	rundll32.exe	rundll32.exe
PID 1664 wrote to memory of 1960	1664	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cm5xssc78.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1664

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cm5xssc78.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1960

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/1732-2-0x000007FEF7BD0000-0x000007FEF7E4A000-memory.dmp

Filesize
2.5MB

Download
memory/1960-0-0x0000000000000000-mapping.dmp

Download
memory/1960-1-0x00000000009B0000-0x00000000009ED000-memory.dmp

Filesize
244KB

Download