dridex | 281f561f39b887a0c84a96856ef71e3957d27dab976a9f08c2f412764902bd8f

Analysis

max time kernel
19s
max time network
139s
platform
windows10_x64
resource
win10v20210410
submitted
20-06-2021 20:46

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General

Target

281f561f39b887a0c84a96856ef71e3957d27dab976a9f08c2f412764902bd8f.dll
Size

160KB
MD5

256e4b55ef6b702be1f8ec47e935075c
SHA1

421cb4bdd3ebe88853790f2fff4f324458ddd820
SHA256

281f561f39b887a0c84a96856ef71e3957d27dab976a9f08c2f412764902bd8f
SHA512

ef5743ed01b20077af89e1893cbc97c1784e54e3f6fb1301473fc36444727c6c2b5be82e5e0805ded3211bc8673bd235e804bf3425295ec28a0fc06d021664bc

Score

10^/10

dridex 40111 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40111

94.247.168.64:443

159.203.93.122:8172

50.116.27.97:2303

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/1740-115-0x0000000074300000-0x000000007432E000-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 500 wrote to memory of 1740	500	rundll32.exe	rundll32.exe
PID 500 wrote to memory of 1740	500	rundll32.exe	rundll32.exe
PID 500 wrote to memory of 1740	500	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\281f561f39b887a0c84a96856ef71e3957d27dab976a9f08c2f412764902bd8f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:500
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\281f561f39b887a0c84a96856ef71e3957d27dab976a9f08c2f412764902bd8f.dll,#1
  2⤵
  - Checks whether UAC is enabled
  PID:1740

Network

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/1740-114-0x0000000000000000-mapping.dmp

Download
memory/1740-115-0x0000000074300000-0x000000007432E000-memory.dmp

Filesize
184KB

Download
memory/1740-117-0x0000000000510000-0x000000000065A000-memory.dmp

Filesize
1.3MB

Download