dridex | 1885ba5cdd126ef02383bbb69c6cac4ee7419ccb4c5e80ef93bab08d60030611

Analysis

max time kernel
30s
max time network
9s
platform
windows7_x64
resource
win7v20210408
submitted
21-04-2021 18:18

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General

Target

1885ba5cdd126ef02383bbb69c6cac4ee7419ccb4c5e80ef93bab08d60030611.dll
Size

157KB
MD5

e93bd9c761576f3b397cbdec61f50c44
SHA1

543bae3468f72a4c05825f4e7440903be767ac0e
SHA256

1885ba5cdd126ef02383bbb69c6cac4ee7419ccb4c5e80ef93bab08d60030611
SHA512

8d0dd3a6408fa9511c69014e65b44ebc78e889233b0b33ff950d2a1c92c0227dc614997c9824928990397794566c716eef2fe4a400f6575691371a46bd70a8ca

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/1904-62-0x00000000748C0000-0x00000000748ED000-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 684 wrote to memory of 1904	684	rundll32.exe	rundll32.exe
PID 684 wrote to memory of 1904	684	rundll32.exe	rundll32.exe
PID 684 wrote to memory of 1904	684	rundll32.exe	rundll32.exe
PID 684 wrote to memory of 1904	684	rundll32.exe	rundll32.exe
PID 684 wrote to memory of 1904	684	rundll32.exe	rundll32.exe
PID 684 wrote to memory of 1904	684	rundll32.exe	rundll32.exe
PID 684 wrote to memory of 1904	684	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1885ba5cdd126ef02383bbb69c6cac4ee7419ccb4c5e80ef93bab08d60030611.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:684

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1885ba5cdd126ef02383bbb69c6cac4ee7419ccb4c5e80ef93bab08d60030611.dll,#1
2⤵
- Checks whether UAC is enabled
PID:1904

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/1904-60-0x0000000000000000-mapping.dmp

Download
memory/1904-61-0x0000000075C71000-0x0000000075C73000-memory.dmp

Filesize
8KB

Download
memory/1904-62-0x00000000748C0000-0x00000000748ED000-memory.dmp

Filesize
180KB

Download
memory/1904-64-0x0000000000100000-0x0000000000106000-memory.dmp

Filesize
24KB

Download