dridex | 7aaf9a631dfc8714f3db15024dfc0ca5d2e00c377fa48f2063f0dab953a97c73

Analysis

max time kernel
38s
max time network
11s
platform
windows7_x64
resource
win7v20210408
submitted
21-04-2021 18:08

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General

Target

7aaf9a631dfc8714f3db15024dfc0ca5d2e00c377fa48f2063f0dab953a97c73.dll
Size

162KB
MD5

de2df1c050be6bd91dbb40895f13ad64
SHA1

4b3d9b51d83e28f3b7d0f158d1558ae050c03758
SHA256

7aaf9a631dfc8714f3db15024dfc0ca5d2e00c377fa48f2063f0dab953a97c73
SHA512

f08bd45d04422c26ec8c681139fed94941df8827497d3c3c86f4ff25bd7ef1f3d15ea86a849d1ab779dddac7b773ef7ddfd643812b7e10461c566b778b4077c4

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

107.172.227.10:443

172.93.133.123:2303

108.168.61.147:8172

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/1856-62-0x0000000074600000-0x000000007462E000-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 792 wrote to memory of 1856	792	rundll32.exe	rundll32.exe
PID 792 wrote to memory of 1856	792	rundll32.exe	rundll32.exe
PID 792 wrote to memory of 1856	792	rundll32.exe	rundll32.exe
PID 792 wrote to memory of 1856	792	rundll32.exe	rundll32.exe
PID 792 wrote to memory of 1856	792	rundll32.exe	rundll32.exe
PID 792 wrote to memory of 1856	792	rundll32.exe	rundll32.exe
PID 792 wrote to memory of 1856	792	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7aaf9a631dfc8714f3db15024dfc0ca5d2e00c377fa48f2063f0dab953a97c73.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:792

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7aaf9a631dfc8714f3db15024dfc0ca5d2e00c377fa48f2063f0dab953a97c73.dll,#1
2⤵
- Checks whether UAC is enabled
PID:1856

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/1856-60-0x0000000000000000-mapping.dmp

Download
memory/1856-61-0x0000000075041000-0x0000000075043000-memory.dmp

Filesize
8KB

Download
memory/1856-62-0x0000000074600000-0x000000007462E000-memory.dmp

Filesize
184KB

Download
memory/1856-64-0x00000000000D0000-0x00000000000D6000-memory.dmp

Filesize
24KB

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