dridex | 3db8bf64f11494eff403977164b7659179710d2d3fe1924258392a862657740e

Analysis

max time kernel
41s
max time network
49s
platform
windows10_x64
resource
win10v20210410
submitted
21-04-2021 22:20

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General

Target

3db8bf64f11494eff403977164b7659179710d2d3fe1924258392a862657740e.dll
Size

162KB
MD5

7e43790653c4ec83efd13adacdf9f240
SHA1

8cda3bb57e28e55d781da7602bb57c0c3194ffc8
SHA256

3db8bf64f11494eff403977164b7659179710d2d3fe1924258392a862657740e
SHA512

a5bbc160b4b34e1a06ebcfd603380876d02abfb0c34e36dfad83e2b1616a5cb610c0b5a121ee0a9194e49892f7491a98470c9aba34eb9891227a92040d93ca81

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/740-115-0x0000000073BF0000-0x0000000073C1E000-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 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3172 wrote to memory of 740	3172	rundll32.exe	rundll32.exe
PID 3172 wrote to memory of 740	3172	rundll32.exe	rundll32.exe
PID 3172 wrote to memory of 740	3172	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3db8bf64f11494eff403977164b7659179710d2d3fe1924258392a862657740e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3172

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3db8bf64f11494eff403977164b7659179710d2d3fe1924258392a862657740e.dll,#1
2⤵
- Checks whether UAC is enabled
PID:740

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/740-114-0x0000000000000000-mapping.dmp

Download
memory/740-115-0x0000000073BF0000-0x0000000073C1E000-memory.dmp

Filesize
184KB

Download
memory/740-117-0x0000000000D60000-0x0000000000EAA000-memory.dmp

Filesize
1.3MB

Download