dridex | 698b8994747285e8e478e3e1cd11d31b2d16f22f3eb9a9d933fab5769ce25286

Analysis

max time kernel
22s
max time network
110s
platform
windows10_x64
resource
win10v20201028
submitted
04-03-2021 03:05

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General

Target

698b8994747285e8e478e3e1cd11d31b2d16f22f3eb9a9d933fab5769ce25286.dll
Size

196KB
MD5

ab2dea8c48d42208d9cffda58bb99344
SHA1

a74d2d918e702c25d1c53f27e87bdbe5d577d1af
SHA256

698b8994747285e8e478e3e1cd11d31b2d16f22f3eb9a9d933fab5769ce25286
SHA512

e5fe1abad928c1439bef34146c887dbb4aa4c1a53dd6afc9184bf04c23340fb12bcd9226ecdaa2b0820f966244c38a9aabc21cbaefa07b1c6b2967ac50278438

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

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

Processes:

resource	yara_rule
behavioral2/memory/4664-3-0x0000000074210000-0x0000000074243000-memory.dmp	dridex_ldr
behavioral2/memory/4664-5-0x0000000074210000-0x000000007422F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

18 4664 rundll32.exe
20 4664 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
18	4664	rundll32.exe
20	4664	rundll32.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4640 wrote to memory of 4664	4640	rundll32.exe	rundll32.exe
PID 4640 wrote to memory of 4664	4640	rundll32.exe	rundll32.exe
PID 4640 wrote to memory of 4664	4640	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\698b8994747285e8e478e3e1cd11d31b2d16f22f3eb9a9d933fab5769ce25286.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4640

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\698b8994747285e8e478e3e1cd11d31b2d16f22f3eb9a9d933fab5769ce25286.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4664

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

Replay Monitor

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Downloads

memory/4664-2-0x0000000000000000-mapping.dmp

Download
memory/4664-3-0x0000000074210000-0x0000000074243000-memory.dmp

Filesize
204KB

Download
memory/4664-4-0x00000000030F0000-0x00000000030F6000-memory.dmp

Filesize
24KB

Download
memory/4664-5-0x0000000074210000-0x000000007422F000-memory.dmp

Filesize
124KB

Download