dridex | 6f7620033e5a6b1283b801c2c97d2bd5dcacb72a2b1ba709b6a763394c6a6aca

Analysis

max time kernel
75s
max time network
96s
platform
windows7_x64
resource
win7-20220414-en
submitted
19-05-2022 02:18

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General

Target

th769kg7.dll
Size

785KB
MD5

24499a2accccfce4f2fa27621c832167
SHA1

85e91e7ff19d5438e84422b367acbc32a6ffad4b
SHA256

6f7620033e5a6b1283b801c2c97d2bd5dcacb72a2b1ba709b6a763394c6a6aca
SHA512

9d0564d490c9b74d39c11620719315ed51589bfe48e366a8ea9c63d5eb6dc3f5320649f6a636bb7beb27a1fdd527ded5a39eeebb54ae28f816dbf74b3a03e0ad

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

209.20.87.138:443

198.1.115.153:8172

151.236.29.248:6516

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex
Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

3 964 rundll32.exe
5 964 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	964	rundll32.exe
5	964	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 1796 wrote to memory of 964	1796	rundll32.exe	rundll32.exe
PID 1796 wrote to memory of 964	1796	rundll32.exe	rundll32.exe
PID 1796 wrote to memory of 964	1796	rundll32.exe	rundll32.exe
PID 1796 wrote to memory of 964	1796	rundll32.exe	rundll32.exe
PID 1796 wrote to memory of 964	1796	rundll32.exe	rundll32.exe
PID 1796 wrote to memory of 964	1796	rundll32.exe	rundll32.exe
PID 1796 wrote to memory of 964	1796	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\th769kg7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1796

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\th769kg7.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:964

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/964-54-0x0000000000000000-mapping.dmp

Download
memory/964-55-0x00000000753B1000-0x00000000753B3000-memory.dmp

Filesize
8KB

Download
memory/964-57-0x00000000747D0000-0x00000000748EB000-memory.dmp

Filesize
1.1MB

Download
memory/964-56-0x00000000747D0000-0x000000007480D000-memory.dmp

Filesize
244KB

Download
memory/964-59-0x00000000747D0000-0x00000000748EB000-memory.dmp

Filesize
1.1MB

Download