dridex | e63095be2fa1b8110b1ff04df2403b6d98424ca39862f777b1998d2002fb640e

Analysis

max time kernel
87s
max time network
101s
platform
windows7_x64
resource
win7-20220414-en
submitted
26-06-2022 05:42

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General

Target

kotv5chb.dll
Size

1.0MB
MD5

731544128fa736287d64a569b9ba108a
SHA1

1fdd7e0f4eed7e8cf7856515dd7c487694aa963e
SHA256

e63095be2fa1b8110b1ff04df2403b6d98424ca39862f777b1998d2002fb640e
SHA512

db0138ca7263be7ed608cd4a3dc0da75d7e2f54ebf979bf9daa4ce990e4c7c468f25e3e61154becd3c09d05c5c166578106d871cd49e09913d46db8e2d0e35e3

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 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 1920 wrote to memory of 1680	1920	rundll32.exe	rundll32.exe
PID 1920 wrote to memory of 1680	1920	rundll32.exe	rundll32.exe
PID 1920 wrote to memory of 1680	1920	rundll32.exe	rundll32.exe
PID 1920 wrote to memory of 1680	1920	rundll32.exe	rundll32.exe
PID 1920 wrote to memory of 1680	1920	rundll32.exe	rundll32.exe
PID 1920 wrote to memory of 1680	1920	rundll32.exe	rundll32.exe
PID 1920 wrote to memory of 1680	1920	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\kotv5chb.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1920

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\kotv5chb.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/1680-55-0x00000000765C1000-0x00000000765C3000-memory.dmp

Filesize
8KB

Download
memory/1680-56-0x0000000074FE0000-0x00000000750FB000-memory.dmp

Filesize
1.1MB

Download
memory/1680-58-0x0000000074FE0000-0x00000000750FB000-memory.dmp

Filesize
1.1MB

Download
memory/1680-57-0x0000000074FE0000-0x000000007501D000-memory.dmp

Filesize
244KB

Download
memory/1680-60-0x0000000074FE0000-0x00000000750FB000-memory.dmp

Filesize
1.1MB

Download
memory/1680-61-0x0000000074FE0000-0x00000000750FB000-memory.dmp

Filesize
1.1MB

Download