dridex | ed4fe8fcd0bbc0a3def448a2e59b765136232a733d8d3b0d5388021a6e2cd117

Analysis

max time kernel
29s
max time network
138s
platform
windows10_x64
resource
win10v20201028
submitted
26-02-2021 11:09

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General

Target

ed4fe8fcd0bbc0a3def448a2e59b765136232a733d8d3b0d5388021a6e2cd117.dll
Size

184KB
MD5

569d67cfb6bc93ebae61aac42da5e058
SHA1

e36bc1c469b1e87c63406f81fa514efe9478d2bb
SHA256

ed4fe8fcd0bbc0a3def448a2e59b765136232a733d8d3b0d5388021a6e2cd117
SHA512

c79caf73a9dc8b0d4f805b7389973b6c23109f3c5069ac5e19191fb3a9149fd928a486f409f707e0da690779cb7ebd3daeda36d98eafad19a77a5ca90299cf85

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

162.13.114.59:443

70.39.99.196:8172

37.187.115.122:6601

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/1144-3-0x0000000073F40000-0x0000000073F70000-memory.dmp	dridex_ldr
behavioral2/memory/1144-5-0x0000000073F40000-0x0000000073F5F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

18 1144 rundll32.exe
20 1144 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	1144	rundll32.exe
20	1144	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 412 wrote to memory of 1144	412	rundll32.exe	rundll32.exe
PID 412 wrote to memory of 1144	412	rundll32.exe	rundll32.exe
PID 412 wrote to memory of 1144	412	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ed4fe8fcd0bbc0a3def448a2e59b765136232a733d8d3b0d5388021a6e2cd117.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:412

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ed4fe8fcd0bbc0a3def448a2e59b765136232a733d8d3b0d5388021a6e2cd117.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1144

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/1144-2-0x0000000000000000-mapping.dmp

Download
memory/1144-3-0x0000000073F40000-0x0000000073F70000-memory.dmp

Filesize
192KB

Download
memory/1144-4-0x0000000004900000-0x0000000004906000-memory.dmp

Filesize
24KB

Download
memory/1144-5-0x0000000073F40000-0x0000000073F5F000-memory.dmp

Filesize
124KB

Download