dridex | 581a2419d8e96d3367e5ead5f7de2c743133db0e69e6f3721d4a99c9ebafda36

Analysis

max time kernel
135s
max time network
137s
platform
windows7_x64
resource
win7v20201028
submitted
18-11-2020 23:20

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General

Target

s.bin.dll
Size

540KB
MD5

bf44f8eef8654d6b2ce11c302351e02a
SHA1

a6fd4a421ca6041f91cb7ce63a6c33f2a1fde0c1
SHA256

581a2419d8e96d3367e5ead5f7de2c743133db0e69e6f3721d4a99c9ebafda36
SHA512

83d6cd60373366d501130b0c23db0c74fde4f7151d8a89a9e2987321f784b72c71517c1aaa24f7a8cf11cd9a3e8028b7771d27795b1f7f80778ecb66316b8678

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/2024-1-0x00000000002C0000-0x00000000002FD000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

4 2024 rundll32.exe
7 2024 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
4	2024	rundll32.exe
7	2024	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 1080 wrote to memory of 2024	1080	rundll32.exe	rundll32.exe
PID 1080 wrote to memory of 2024	1080	rundll32.exe	rundll32.exe
PID 1080 wrote to memory of 2024	1080	rundll32.exe	rundll32.exe
PID 1080 wrote to memory of 2024	1080	rundll32.exe	rundll32.exe
PID 1080 wrote to memory of 2024	1080	rundll32.exe	rundll32.exe
PID 1080 wrote to memory of 2024	1080	rundll32.exe	rundll32.exe
PID 1080 wrote to memory of 2024	1080	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\s.bin.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1080

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\s.bin.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:2024

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/616-2-0x000007FEF6930000-0x000007FEF6BAA000-memory.dmp

Filesize
2.5MB

Download
memory/2024-0-0x0000000000000000-mapping.dmp

Download
memory/2024-1-0x00000000002C0000-0x00000000002FD000-memory.dmp

Filesize
244KB

Download