dridex | b2bcb01b2c4755ae460bcd5d2b80bac2b487c6496f9d2db34a0f84a3ffe6084e

Analysis

max time kernel
150s
max time network
113s
platform
windows10_x64
resource
win10v20210410
submitted
27-07-2021 07:29

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General

Target

b2bcb01b2c4755ae460bcd5d2b80bac2b487c6496f9d2db34a0f84a3ffe6084e.dll
Size

175KB
MD5

5dd5543a9ec16b3959e5a21bd85b6823
SHA1

40fec7d5e5fe9026dc207330625951001afa2900
SHA256

b2bcb01b2c4755ae460bcd5d2b80bac2b487c6496f9d2db34a0f84a3ffe6084e
SHA512

25e7d867ab4ad3abad2b3ef57529b6cd1953966415533b2b85f25c07c571339b99b927c50b425abb739ac23bcbd3c1d13492f4fc6fb7e86067b0532d1372a6ad

Score

10^/10

dridex 22201 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

22201

45.79.33.48:443

139.162.202.74:5007

68.183.216.174:7443

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/3236-115-0x00000000742B0000-0x00000000742E0000-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 3424 wrote to memory of 3236	3424	rundll32.exe	rundll32.exe
PID 3424 wrote to memory of 3236	3424	rundll32.exe	rundll32.exe
PID 3424 wrote to memory of 3236	3424	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b2bcb01b2c4755ae460bcd5d2b80bac2b487c6496f9d2db34a0f84a3ffe6084e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3424

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b2bcb01b2c4755ae460bcd5d2b80bac2b487c6496f9d2db34a0f84a3ffe6084e.dll,#1
2⤵
- Checks whether UAC is enabled
PID:3236

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/3236-114-0x0000000000000000-mapping.dmp

Download
memory/3236-115-0x00000000742B0000-0x00000000742E0000-memory.dmp

Filesize
192KB

Download
memory/3236-117-0x0000000004C90000-0x0000000004C96000-memory.dmp

Filesize
24KB

Download