dridex | 127cbbfb87296a3479dab2411e01762fc2279fa487cdd8d6997fbd3cf59f8fe0

Analysis

max time kernel
28s
max time network
13s
platform
windows7_x64
resource
win7v20210408
submitted
21-04-2021 17:22

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General

Target

52831..dll
Size

157KB
MD5

b6496f01ccf0dbc993ed56bcb0ad51cc
SHA1

8240fdf0936e7531e300c94f0a35c3cc52aeaebf
SHA256

127cbbfb87296a3479dab2411e01762fc2279fa487cdd8d6997fbd3cf59f8fe0
SHA512

2436adb571a547f6179c6be8ed65b497ff3785560a94d9620ac28ed97c4d2ec5bd12a1fdf934d8a2c62330024a9c167e5335ed28bd76d1593ba9f9c0d03fdb70

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

159.8.59.82:443

51.91.156.39:2303

67.196.50.240:8172

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/1988-61-0x0000000074F60000-0x0000000074F8D000-memory.dmp	dridex_ldr

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

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 1848 wrote to memory of 1988	1848	rundll32.exe	rundll32.exe
PID 1848 wrote to memory of 1988	1848	rundll32.exe	rundll32.exe
PID 1848 wrote to memory of 1988	1848	rundll32.exe	rundll32.exe
PID 1848 wrote to memory of 1988	1848	rundll32.exe	rundll32.exe
PID 1848 wrote to memory of 1988	1848	rundll32.exe	rundll32.exe
PID 1848 wrote to memory of 1988	1848	rundll32.exe	rundll32.exe
PID 1848 wrote to memory of 1988	1848	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\52831..dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1848

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\52831..dll,#1
2⤵
- Checks whether UAC is enabled
PID:1988

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1988-59-0x0000000000000000-mapping.dmp

Download
memory/1988-60-0x00000000757C1000-0x00000000757C3000-memory.dmp

Filesize
8KB

Download
memory/1988-61-0x0000000074F60000-0x0000000074F8D000-memory.dmp

Filesize
180KB

Download
memory/1988-63-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download