dridex | a1b14e952a770dafb8ce9f50a3384a7da61e0ee0281aa7340680c14eecbc7793

General

Target

a1b14e952a770dafb8ce9f50a3384a7da61e0ee0281aa7340680c14eecbc7793.dll
Size

196KB
MD5

5b47ae2be46b08d04796ffa7d8ae732e
SHA1

830f3f929afb0bf26c21d4d04c5a635bf0361321
SHA256

a1b14e952a770dafb8ce9f50a3384a7da61e0ee0281aa7340680c14eecbc7793
SHA512

8c0be95b92cd314abe03ea5247d990d537397bb6ba76f99cd4680b2639cdef54c8a1ab8c4b49adee3247a11100c43ea0cfd11b10ff70bae440a0b64e32e46e1b

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

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
behavioral1/memory/1940-4-0x0000000075340000-0x0000000075373000-memory.dmp	dridex_ldr
behavioral1/memory/1940-6-0x0000000075340000-0x000000007535F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 4 IoCs

Processes:

rundll32.exe

flow pid process

4 1940 rundll32.exe
6 1940 rundll32.exe
8 1940 rundll32.exe
9 1940 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	1940	rundll32.exe
6	1940	rundll32.exe
8	1940	rundll32.exe
9	1940	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 1684 wrote to memory of 1940	1684	rundll32.exe	rundll32.exe
PID 1684 wrote to memory of 1940	1684	rundll32.exe	rundll32.exe
PID 1684 wrote to memory of 1940	1684	rundll32.exe	rundll32.exe
PID 1684 wrote to memory of 1940	1684	rundll32.exe	rundll32.exe
PID 1684 wrote to memory of 1940	1684	rundll32.exe	rundll32.exe
PID 1684 wrote to memory of 1940	1684	rundll32.exe	rundll32.exe
PID 1684 wrote to memory of 1940	1684	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a1b14e952a770dafb8ce9f50a3384a7da61e0ee0281aa7340680c14eecbc7793.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1684

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a1b14e952a770dafb8ce9f50a3384a7da61e0ee0281aa7340680c14eecbc7793.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1940

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1448-7-0x000007FEF68D0000-0x000007FEF6B4A000-memory.dmp

Filesize
2.5MB

Download
memory/1940-2-0x0000000000000000-mapping.dmp

Download
memory/1940-3-0x00000000756A1000-0x00000000756A3000-memory.dmp

Filesize
8KB

Download
memory/1940-4-0x0000000075340000-0x0000000075373000-memory.dmp

Filesize
204KB

Download
memory/1940-5-0x00000000000C0000-0x00000000000C6000-memory.dmp

Filesize
24KB

Download
memory/1940-6-0x0000000075340000-0x000000007535F000-memory.dmp

Filesize
124KB

Download

Analysis

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