dridex | db8945a793ea1bd94eb1aa3e3e14e84da66b3048f4a86e814e6d0f8dd5c8c276

Analysis

max time kernel
142s
max time network
147s
platform
windows7_x64
resource
win7-20220414-en
submitted
26-06-2022 06:06

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General

Target

tsb8kv.dll
Size

497KB
MD5

ea17e483833d1d1b26babad280b6f7cd
SHA1

ffd61dddb0607a6a12e9f58b50185be7998f7e39
SHA256

db8945a793ea1bd94eb1aa3e3e14e84da66b3048f4a86e814e6d0f8dd5c8c276
SHA512

7d2add1d53aa7d84ef2e223d5ef8b27ff8f7d5847a27407fed5d0d9cffd3a64bc6ebc41b8b6000d92f077ab7908f940963bdbafe6bb817131dc9ce78d3b2f95e

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

178.128.83.165:443

128.199.59.13:8172

110.164.184.226:6516

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 1 IoCs

Processes:

rundll32.exe

flow pid process

4 1972 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
4	1972	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 1944 wrote to memory of 1972	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 1972	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 1972	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 1972	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 1972	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 1972	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 1972	1944	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\tsb8kv.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1944

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\tsb8kv.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1972

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

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Downloads

memory/1972-54-0x0000000000000000-mapping.dmp

Download
memory/1972-55-0x0000000076191000-0x0000000076193000-memory.dmp

Filesize
8KB

Download
memory/1972-57-0x0000000074A90000-0x0000000074B23000-memory.dmp

Filesize
588KB

Download
memory/1972-56-0x0000000074A90000-0x0000000074ACD000-memory.dmp

Filesize
244KB

Download
memory/1972-59-0x0000000074A90000-0x0000000074B23000-memory.dmp

Filesize
588KB

Download
memory/1972-60-0x0000000074A90000-0x0000000074B23000-memory.dmp

Filesize
588KB

Download