dridex | 8521e047f78ccf64777d40e44fb86a95f900e0ed594bb4f01cc6802ff412c536

Analysis

max time kernel
48s
max time network
82s
platform
windows7_x64
resource
win7-20220414-en
submitted
26-06-2022 06:00

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General

Target

se12y5vm.dll
Size

311KB
MD5

7750ba949e4b090260827a4d8be63efc
SHA1

ee0e268bfa0e49591dcf77f32d7da94515d03c82
SHA256

8521e047f78ccf64777d40e44fb86a95f900e0ed594bb4f01cc6802ff412c536
SHA512

464c3ac243bb8b3bad6419d10d5c9112dbb658e13256b722325bb42bcb11c464192683cb814568ecb431bf28aa3b58cbd7061f8c273b5ee3ac700948876eb315

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

77.220.64.37:443

80.86.91.27:3308

5.100.228.233:3389

46.105.131.65:1512

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 1680 rundll32.exe
5 1680 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	1680	rundll32.exe
5	1680	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 1792 wrote to memory of 1680	1792	rundll32.exe	rundll32.exe
PID 1792 wrote to memory of 1680	1792	rundll32.exe	rundll32.exe
PID 1792 wrote to memory of 1680	1792	rundll32.exe	rundll32.exe
PID 1792 wrote to memory of 1680	1792	rundll32.exe	rundll32.exe
PID 1792 wrote to memory of 1680	1792	rundll32.exe	rundll32.exe
PID 1792 wrote to memory of 1680	1792	rundll32.exe	rundll32.exe
PID 1792 wrote to memory of 1680	1792	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\se12y5vm.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1792

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\se12y5vm.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1680

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/1680-54-0x0000000000000000-mapping.dmp

Download
memory/1680-55-0x0000000075C51000-0x0000000075C53000-memory.dmp

Filesize
8KB

Download
memory/1680-56-0x0000000000360000-0x000000000039D000-memory.dmp

Filesize
244KB

Download
memory/1680-57-0x0000000000460000-0x000000000049D000-memory.dmp

Filesize
244KB

Download