dridex | 3997bf3cf7485ae768f7a23aaa9004f73b0594550611138906821f9b4dc9bce7

Analysis

max time kernel
132s
max time network
131s
platform
windows7_x64
resource
win7v20201028
submitted
13-01-2021 11:20

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

xka8p2.rar.dll
Size

311KB
MD5

ae994d2a6193a4e256aa86ce0b61175b
SHA1

e067113be50304e76cad4aee6b5bee638938b2e4
SHA256

3997bf3cf7485ae768f7a23aaa9004f73b0594550611138906821f9b4dc9bce7
SHA512

dfaf1af31639a358219d6f0bcbf0858d397d5ce082ce9a7282c4c2c2e5f3c8190c3b9f08fa4dcff0d97faacb367679b7d27c738c11e4821bcccafe7bad5ecffd

Score

10^/10

dridex 10444 botnet discovery evasion loader 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

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/2004-3-0x0000000000360000-0x000000000039D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 4 IoCs

Processes:

rundll32.exe

flow pid process

3 2004 rundll32.exe
6 2004 rundll32.exe
7 2004 rundll32.exe
9 2004 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	2004	rundll32.exe
6	2004	rundll32.exe
7	2004	rundll32.exe
9	2004	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 2004	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 2004	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 2004	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 2004	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 2004	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 2004	1944	rundll32.exe	rundll32.exe
PID 1944 wrote to memory of 2004	1944	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\xka8p2.rar.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1944

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\xka8p2.rar.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:2004

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

Loading Replay Monitor...

Downloads

memory/1644-4-0x000007FEF7430000-0x000007FEF76AA000-memory.dmp

Filesize
2.5MB

Download
memory/2004-2-0x0000000000000000-mapping.dmp

Download
memory/2004-3-0x0000000000360000-0x000000000039D000-memory.dmp

Filesize
244KB

Download