dridex | a38c9e0bb4e5fb222312acf0378ab65be9292c4c80e0036a0782e952da3d341c

Analysis

max time kernel
140s
max time network
118s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
06-05-2024 17:28

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General

Target

h5xfxt5.zip.dll
Size

664KB
MD5

5f2aa45741d8c9e211d002e0e7d9e343
SHA1

73d05423a833c65dcdeb30ec11f881b6761e2770
SHA256

a38c9e0bb4e5fb222312acf0378ab65be9292c4c80e0036a0782e952da3d341c
SHA512

f90c8270f6e2e1f741c7f8a1481680f38b1b757714bdfb99a3165ec5bfcb219bb4fc11ce4ae63c92e712894cb5de5d78f61de45ffac765030facd7fad2ef9c0a
SSDEEP

12288:l/0Qzqf0e3i482M+6TFKywVt6PbEYU0eyJTT/Mu9oV01u0oaEP:F0zh31n6TFKywvCbEOxDMu9oyUaEP

Score

10^/10

dridex 10222 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10222

174.128.245.202:443

51.83.3.52:13786

69.64.50.41:6602

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 1936 rundll32.exe
5 1936 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	1936	rundll32.exe
5	1936	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 1404 wrote to memory of 1936	1404	rundll32.exe	rundll32.exe
PID 1404 wrote to memory of 1936	1404	rundll32.exe	rundll32.exe
PID 1404 wrote to memory of 1936	1404	rundll32.exe	rundll32.exe
PID 1404 wrote to memory of 1936	1404	rundll32.exe	rundll32.exe
PID 1404 wrote to memory of 1936	1404	rundll32.exe	rundll32.exe
PID 1404 wrote to memory of 1936	1404	rundll32.exe	rundll32.exe
PID 1404 wrote to memory of 1936	1404	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\h5xfxt5.zip.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1404

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\h5xfxt5.zip.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1936

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/1936-0-0x0000000002040000-0x000000000217C000-memory.dmp

Filesize
1.2MB

Download
memory/1936-2-0x0000000002040000-0x000000000217C000-memory.dmp

Filesize
1.2MB

Download
memory/1936-3-0x0000000002040000-0x000000000217C000-memory.dmp

Filesize
1.2MB

Download
memory/1936-5-0x0000000002040000-0x000000000217C000-memory.dmp

Filesize
1.2MB

Download
memory/1936-6-0x00000000020E2000-0x00000000020E8000-memory.dmp

Filesize
24KB

Download
memory/1936-7-0x0000000002040000-0x000000000217C000-memory.dmp

Filesize
1.2MB

Download
memory/1936-8-0x0000000002040000-0x000000000217C000-memory.dmp

Filesize
1.2MB

Download