dridex | 54a48461c5eebcb2c0ad360835633f993cf4c94956f0b4bd7a2c9c9d365c5e6a

Analysis

max time kernel
21s
max time network
131s
platform
windows10_x64
resource
win10v20201028
submitted
03-04-2021 13:20

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General

Target

54a48461c5eebcb2c0ad360835633f993cf4c94956f0b4bd7a2c9c9d365c5e6a.dll
Size

196KB
MD5

38bdbcdeaa8345ad8a5bcfa186912423
SHA1

207f6d77de463a62ca370e91eb08598c2a4ef753
SHA256

54a48461c5eebcb2c0ad360835633f993cf4c94956f0b4bd7a2c9c9d365c5e6a
SHA512

72a178782f857017b80d789d624cd14faff08edd6ecd71f2d439d0539cacc17fde6272dd021e7ad712015d34b18b954f614ee40c1b96c33e96cb0b468712498d

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

37.247.35.132:443

50.243.30.51:6601

162.241.204.234:6516

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/4780-3-0x0000000073D90000-0x0000000073DC3000-memory.dmp	dridex_ldr
behavioral2/memory/4780-5-0x0000000073D90000-0x0000000073DAF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

16 4780 rundll32.exe
18 4780 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
16	4780	rundll32.exe
18	4780	rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4760 wrote to memory of 4780	4760	rundll32.exe	rundll32.exe
PID 4760 wrote to memory of 4780	4760	rundll32.exe	rundll32.exe
PID 4760 wrote to memory of 4780	4760	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\54a48461c5eebcb2c0ad360835633f993cf4c94956f0b4bd7a2c9c9d365c5e6a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4760

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\54a48461c5eebcb2c0ad360835633f993cf4c94956f0b4bd7a2c9c9d365c5e6a.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4780

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/4780-2-0x0000000000000000-mapping.dmp

Download
memory/4780-3-0x0000000073D90000-0x0000000073DC3000-memory.dmp

Filesize
204KB

Download
memory/4780-4-0x0000000002F70000-0x0000000002F76000-memory.dmp

Filesize
24KB

Download
memory/4780-5-0x0000000073D90000-0x0000000073DAF000-memory.dmp

Filesize
124KB

Download