dridex | 7f40daf140f16c6a6d70eee101a08640b0f301a8c224fdac5254b5b71e62eb8d

Analysis

max time kernel
66s
max time network
99s
platform
windows7_x64
resource
win7-20220414-en
submitted
11-06-2022 16:47

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General

Target

m2st428.dll
Size

1.0MB
MD5

707a7a0945a99cbe9c542566c79ca006
SHA1

fcc6984d14ca28719c514f71c12aa77dde9fe4b3
SHA256

7f40daf140f16c6a6d70eee101a08640b0f301a8c224fdac5254b5b71e62eb8d
SHA512

61144cf4602f78aefc137bf9d8ae7002c784d22bc9ad5b8a0449c8e5ac83b158d0d2e6bbb56114a8d61f1b2a37919946a361e49d5a6fc18078bb78ce2ed8a41a

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

3 1984 rundll32.exe
5 1984 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	1984	rundll32.exe
5	1984	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 2008 wrote to memory of 1984	2008	rundll32.exe	rundll32.exe
PID 2008 wrote to memory of 1984	2008	rundll32.exe	rundll32.exe
PID 2008 wrote to memory of 1984	2008	rundll32.exe	rundll32.exe
PID 2008 wrote to memory of 1984	2008	rundll32.exe	rundll32.exe
PID 2008 wrote to memory of 1984	2008	rundll32.exe	rundll32.exe
PID 2008 wrote to memory of 1984	2008	rundll32.exe	rundll32.exe
PID 2008 wrote to memory of 1984	2008	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\m2st428.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2008

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\m2st428.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1984

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/1984-54-0x0000000000000000-mapping.dmp

Download
memory/1984-55-0x0000000075BF1000-0x0000000075BF3000-memory.dmp

Filesize
8KB

Download
memory/1984-56-0x00000000752A0000-0x00000000753BB000-memory.dmp

Filesize
1.1MB

Download
memory/1984-58-0x00000000752A0000-0x00000000753BB000-memory.dmp

Filesize
1.1MB

Download
memory/1984-57-0x00000000752A0000-0x00000000752DD000-memory.dmp

Filesize
244KB

Download
memory/1984-60-0x00000000752A0000-0x00000000753BB000-memory.dmp

Filesize
1.1MB

Download
memory/1984-61-0x00000000752A0000-0x00000000753BB000-memory.dmp

Filesize
1.1MB

Download