dridex | f4f3228f55ed310da0960219d5b2b497c5c76ec1fe5059160136791649158917

Analysis

max time kernel
22s
max time network
132s
platform
windows10_x64
resource
win10v20201028
submitted
04/03/2021, 07:53

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General

Target
2bb45dd8c9f7f648266a608649033f4c.dll
Size 196KB
Sample210304-ctxk3ck812
SHA256 f4f3228f55ed310da0960219d5b2b497c5c76ec1fe5059160136791649158917
MD5 2bb45dd8c9f7f648266a608649033f4c
SHA1 4b734ef266d0f2049d0408ec6548b08a3f922cc7
SHA512 97b8262d9dbbecdfad08f9273f2cac75efb3c5cb0a930473f4bc55d7c595f24007ea1940ebf4c509c315f35c2178759ebc8eff56acd65b4ef7465918290cffb7
MD5 SHA1 SHA512

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

37.247.35.132:443
50.243.30.51:6601
162.241.204.234:6516

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

resource	yara_rule
behavioral2/memory/4060-3-0x0000000074100000-0x0000000074133000-memory.dmp	dridex_ldr
behavioral2/memory/4060-5-0x0000000074100000-0x000000007411F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
15	4060	rundll32.exe
17	4060	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

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

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4004 wrote to memory of 4060	4004	rundll32.exe	49
PID 4004 wrote to memory of 4060	4004	rundll32.exe	49
PID 4004 wrote to memory of 4060	4004	rundll32.exe	49

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2bb45dd8c9f7f648266a608649033f4c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4004
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2bb45dd8c9f7f648266a608649033f4c.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:4060

Network

MITRE ATT&CK Enterprise v6

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

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Downloads

memory/4060-3-0x0000000074100000-0x0000000074133000-memory.dmp

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memory/4060-4-0x0000000002F30000-0x0000000002F36000-memory.dmp

Download

memory/4060-5-0x0000000074100000-0x000000007411F000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads