dridex | 899763a4a465fbb6d4d149b0866066feff5fcc72f3d0aae8e20eb6ffa9d4a45d

General

Target

899763a4a465fbb6d4d149b0866066feff5fcc72f3d0aae8e20eb6ffa9d4a45d.dll
Size

196KB
MD5

00fcef3ca43d39a0509bf6a8fc0248f9
SHA1

1c68c7773740da8faa143e5f36d96bade24c31f0
SHA256

899763a4a465fbb6d4d149b0866066feff5fcc72f3d0aae8e20eb6ffa9d4a45d
SHA512

4b1da7f2624daaf37efe726d73e1b92a6d68fe9a781622e8f011943a3de165db615eabe20731f0ae7d5bde74782e00adbe40850e916309c249e4593b44f67330

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/1148-4-0x00000000743C0000-0x00000000743F3000-memory.dmp	dridex_ldr
behavioral1/memory/1148-6-0x00000000743C0000-0x00000000743DF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 4 IoCs

Processes:

rundll32.exe

flow pid process

4 1148 rundll32.exe
6 1148 rundll32.exe
8 1148 rundll32.exe
10 1148 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	1148	rundll32.exe
6	1148	rundll32.exe
8	1148	rundll32.exe
10	1148	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 1932 wrote to memory of 1148	1932	rundll32.exe	rundll32.exe
PID 1932 wrote to memory of 1148	1932	rundll32.exe	rundll32.exe
PID 1932 wrote to memory of 1148	1932	rundll32.exe	rundll32.exe
PID 1932 wrote to memory of 1148	1932	rundll32.exe	rundll32.exe
PID 1932 wrote to memory of 1148	1932	rundll32.exe	rundll32.exe
PID 1932 wrote to memory of 1148	1932	rundll32.exe	rundll32.exe
PID 1932 wrote to memory of 1148	1932	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\899763a4a465fbb6d4d149b0866066feff5fcc72f3d0aae8e20eb6ffa9d4a45d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1932

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\899763a4a465fbb6d4d149b0866066feff5fcc72f3d0aae8e20eb6ffa9d4a45d.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1148

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/1148-2-0x0000000000000000-mapping.dmp

Download
memory/1148-3-0x00000000750C1000-0x00000000750C3000-memory.dmp

Filesize
8KB

Download
memory/1148-4-0x00000000743C0000-0x00000000743F3000-memory.dmp

Filesize
204KB

Download
memory/1148-5-0x0000000000150000-0x0000000000156000-memory.dmp

Filesize
24KB

Download
memory/1148-6-0x00000000743C0000-0x00000000743DF000-memory.dmp

Filesize
124KB

Download
memory/1752-7-0x000007FEF5BC0000-0x000007FEF5E3A000-memory.dmp

Filesize
2.5MB

Download

Analysis

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