dridex | 66aaf5adbefdf266b5b1a944d0c9c4d6da0df4caa88312d34d913e3bd3bc7ef3

Analysis

max time kernel
33s
max time network
13s
platform
windows7_x64
resource
win7v20210408
submitted
21-04-2021 18:18

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General

Target

66aaf5adbefdf266b5b1a944d0c9c4d6da0df4caa88312d34d913e3bd3bc7ef3.dll
Size

154KB
MD5

84b4b1075b9d2cbf5145d4254beb601e
SHA1

50140d262469e2c8b90ae8c18e16f5a9917d0a7e
SHA256

66aaf5adbefdf266b5b1a944d0c9c4d6da0df4caa88312d34d913e3bd3bc7ef3
SHA512

29100274b9559234a65520d7dc10456cb933b770fd7c388f594e5e90286f9fe81343db7234dd4ac1143050dfdc73205bbcef5cdfa666d14be88921ef6ff2c7d0

Score

10^/10

dridex 40111 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40111

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/2020-62-0x0000000074F40000-0x0000000074F6D000-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 1840 wrote to memory of 2020	1840	rundll32.exe	rundll32.exe
PID 1840 wrote to memory of 2020	1840	rundll32.exe	rundll32.exe
PID 1840 wrote to memory of 2020	1840	rundll32.exe	rundll32.exe
PID 1840 wrote to memory of 2020	1840	rundll32.exe	rundll32.exe
PID 1840 wrote to memory of 2020	1840	rundll32.exe	rundll32.exe
PID 1840 wrote to memory of 2020	1840	rundll32.exe	rundll32.exe
PID 1840 wrote to memory of 2020	1840	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\66aaf5adbefdf266b5b1a944d0c9c4d6da0df4caa88312d34d913e3bd3bc7ef3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1840

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\66aaf5adbefdf266b5b1a944d0c9c4d6da0df4caa88312d34d913e3bd3bc7ef3.dll,#1
2⤵
- Checks whether UAC is enabled
PID:2020

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2020-60-0x0000000000000000-mapping.dmp

Download
memory/2020-61-0x00000000757C1000-0x00000000757C3000-memory.dmp

Filesize
8KB

Download
memory/2020-62-0x0000000074F40000-0x0000000074F6D000-memory.dmp

Filesize
180KB

Download
memory/2020-64-0x00000000000E0000-0x00000000000E6000-memory.dmp

Filesize
24KB

Download