dridex | 0dfab637891eaf6ff9134a21c5200d677f6e915a25b43e8a4acc5fe90f793033

Analysis

max time kernel
60s
max time network
62s
platform
windows7_x64
resource
win7v20201028
submitted
18-11-2020 14:54

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General

Target

io7zx7ai.jpg.dll
Size

539KB
MD5

62be3a6896b52be1e7d1ddd0330caae8
SHA1

2766b9be34ec6da23b3eb7a1e287d1271e19577f
SHA256

0dfab637891eaf6ff9134a21c5200d677f6e915a25b43e8a4acc5fe90f793033
SHA512

c7fbac0c7756d0c371f948dea93f63a353deb21620b95726decc188689e4c39a4f9eebdf5fe5c3114eb95accfdbdd8aedfa03353cb7447df8968e9c19df9f40c

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

162.241.44.26:9443

192.232.229.53:4443

77.220.64.34:443

193.90.12.121:3098

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/1812-1-0x00000000003E0000-0x000000000041D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

3 1812 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
3	1812	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 1804 wrote to memory of 1812	1804	rundll32.exe	rundll32.exe
PID 1804 wrote to memory of 1812	1804	rundll32.exe	rundll32.exe
PID 1804 wrote to memory of 1812	1804	rundll32.exe	rundll32.exe
PID 1804 wrote to memory of 1812	1804	rundll32.exe	rundll32.exe
PID 1804 wrote to memory of 1812	1804	rundll32.exe	rundll32.exe
PID 1804 wrote to memory of 1812	1804	rundll32.exe	rundll32.exe
PID 1804 wrote to memory of 1812	1804	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\io7zx7ai.jpg.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1804

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\io7zx7ai.jpg.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1812

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/1812-0-0x0000000000000000-mapping.dmp

Download
memory/1812-1-0x00000000003E0000-0x000000000041D000-memory.dmp

Filesize
244KB

Download
memory/1968-2-0x000007FEF77C0000-0x000007FEF7A3A000-memory.dmp

Filesize
2.5MB

Download