dridex | 62cfd2cdd48db44396cccb21e1001ce58edfccbb0a9a8cc6730fa5f50ad20f4d

Analysis

max time kernel
118s
max time network
117s
platform
windows7_x64
resource
win7v20201028
submitted
08-12-2020 10:19

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General

Target

igjkrk3rar.dll
Size

412KB
MD5

a413b165cbd657e4126a58bd6b682679
SHA1

5a368528e181e52f431eb185d36522e9f6bb4d98
SHA256

62cfd2cdd48db44396cccb21e1001ce58edfccbb0a9a8cc6730fa5f50ad20f4d
SHA512

f2c235d60c2367a8b3470e034741b20f36bab233bfd2994408a84ca5f79478d32bbb6277158477035eb93127839a4985f92783e161923f44ff8f7efe03f91c79

Score

10^/10

dridex 10555 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10555

104.131.164.93:443

46.101.90.205:4643

27.254.174.84:4443

92.94.251.127:3786

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/1528-3-0x0000000000760000-0x000000000079D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

4 1528 rundll32.exe
7 1528 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	1528	rundll32.exe
7	1528	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 2024 wrote to memory of 1528	2024	rundll32.exe	rundll32.exe
PID 2024 wrote to memory of 1528	2024	rundll32.exe	rundll32.exe
PID 2024 wrote to memory of 1528	2024	rundll32.exe	rundll32.exe
PID 2024 wrote to memory of 1528	2024	rundll32.exe	rundll32.exe
PID 2024 wrote to memory of 1528	2024	rundll32.exe	rundll32.exe
PID 2024 wrote to memory of 1528	2024	rundll32.exe	rundll32.exe
PID 2024 wrote to memory of 1528	2024	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\igjkrk3rar.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2024

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\igjkrk3rar.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1528

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/1528-2-0x0000000000000000-mapping.dmp

Download
memory/1528-3-0x0000000000760000-0x000000000079D000-memory.dmp

Filesize
244KB

Download
memory/1728-4-0x000007FEF77C0000-0x000007FEF7A3A000-memory.dmp

Filesize
2.5MB

Download