dridex | 7efec75e89d3cbffb5d0b44a62ffde1f2d9c6ab733c2f572e824b4755c3986b2

Analysis

max time kernel
38s
max time network
76s
platform
windows10_x64
resource
win10v20210408
submitted
20-04-2021 05:20

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General

Target

7efec75e89d3cbffb5d0b44a62ffde1f2d9c6ab733c2f572e824b4755c3986b2.dll
Size

923KB
MD5

1027d5d393f3d9df94d6e9c1f058d899
SHA1

9bd8b03c157bdf8b2d2e161b130eaec8fc0b2d38
SHA256

7efec75e89d3cbffb5d0b44a62ffde1f2d9c6ab733c2f572e824b4755c3986b2
SHA512

ab42e0d9c251d144856c505dc327c575093e81d8b33b80c9d360bbe9804b813905b197d983ac93ebbe3af3c18ec06069cab997ed9f48cec17fedcd46999f221a

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

146.185.170.249:443

62.75.251.60:6601

185.148.168.25:2303

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
behavioral1/memory/4704-115-0x0000000073B60000-0x0000000073B9D000-memory.dmp	dridex_ldr
behavioral1/memory/4704-116-0x0000000073B60000-0x0000000073C60000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

14 4704 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
14	4704	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 4656 wrote to memory of 4704	4656	rundll32.exe	rundll32.exe
PID 4656 wrote to memory of 4704	4656	rundll32.exe	rundll32.exe
PID 4656 wrote to memory of 4704	4656	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7efec75e89d3cbffb5d0b44a62ffde1f2d9c6ab733c2f572e824b4755c3986b2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4656

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7efec75e89d3cbffb5d0b44a62ffde1f2d9c6ab733c2f572e824b4755c3986b2.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4704

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/4704-114-0x0000000000000000-mapping.dmp

Download
memory/4704-115-0x0000000073B60000-0x0000000073B9D000-memory.dmp

Filesize
244KB

Download
memory/4704-116-0x0000000073B60000-0x0000000073C60000-memory.dmp

Filesize
1024KB

Download
memory/4704-122-0x0000000003000000-0x00000000030AE000-memory.dmp

Filesize
696KB

Download