dridex | 50dc4263f4b99b452d70aba39f86e2c50cb11c0948488b001aefe61dc7069593

Analysis

max time kernel
43s
max time network
54s
platform
windows7_x64
resource
win7-20220414-en
submitted
27-04-2022 03:04

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General

Target

tplrwbs.dll
Size

1.0MB
MD5

8862af832648036583401dc684dfb37e
SHA1

303a5bb159021e54fac7ede1951ee77d3506cf7e
SHA256

50dc4263f4b99b452d70aba39f86e2c50cb11c0948488b001aefe61dc7069593
SHA512

78df17ff6609053ecec51cad8035c4ea767dcb1339c77029f689e2177cdc6ae7441c92146adbacea3904b8e66610629292d35e803ad044b8486d337560cdfb46

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

192.46.210.220:443

143.244.140.214:808

45.77.0.96:6891

185.56.219.47:8116

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

2 284 rundll32.exe
4 284 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
2	284	rundll32.exe
4	284	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 1152 wrote to memory of 284	1152	rundll32.exe	rundll32.exe
PID 1152 wrote to memory of 284	1152	rundll32.exe	rundll32.exe
PID 1152 wrote to memory of 284	1152	rundll32.exe	rundll32.exe
PID 1152 wrote to memory of 284	1152	rundll32.exe	rundll32.exe
PID 1152 wrote to memory of 284	1152	rundll32.exe	rundll32.exe
PID 1152 wrote to memory of 284	1152	rundll32.exe	rundll32.exe
PID 1152 wrote to memory of 284	1152	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\tplrwbs.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\tplrwbs.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:284

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/284-54-0x0000000000000000-mapping.dmp

Download
memory/284-55-0x00000000763E1000-0x00000000763E3000-memory.dmp

Filesize
8KB

Download
memory/284-56-0x0000000074900000-0x0000000074A1B000-memory.dmp

Filesize
1.1MB

Download
memory/284-58-0x0000000074900000-0x0000000074A1B000-memory.dmp

Filesize
1.1MB

Download
memory/284-57-0x0000000074900000-0x000000007493D000-memory.dmp

Filesize
244KB

Download
memory/284-60-0x0000000074900000-0x0000000074A1B000-memory.dmp

Filesize
1.1MB

Download