dridex | e4e38b97d0cb5cb3c5d11a3254a89d0199c2c3e43eb51c11c5cc5fab97393d35

Analysis

max time kernel
29s
max time network
85s
platform
windows7_x64
resource
win7v20201028
submitted
24/03/2021, 17:42

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General

Target
e4e38b97d0cb5cb3c5d11a3254a89d0199c2c3e43eb51c11c5cc5fab97393d35.dll
Size 876KB
Sample210324-ejhssaf6bn
SHA256 e4e38b97d0cb5cb3c5d11a3254a89d0199c2c3e43eb51c11c5cc5fab97393d35
MD5 4c30b5933afb72457281497be2207ab3
SHA1 aa32d14d31c6db80f852cecd41a801c93d659fc0
SHA512 f30c4b7d4a29677f9b2e60ff796164ed0f1239754101b7c761070bd8161409277dad1297351987673a21c84e70fb5764367a88819285e52f54541ae361f60c31
MD5 SHA1 SHA512

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

131.100.24.192:443
103.6.213.203:6601
46.41.130.218:2303

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral1/memory/1632-4-0x0000000000640000-0x000000000067D000-memory.dmp	dridex_ldr
behavioral1/memory/1632-5-0x0000000000640000-0x000000000067D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
4	1632	rundll32.exe
7	1632	rundll32.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 1632	1724	rundll32.exe	26
PID 1724 wrote to memory of 1632	1724	rundll32.exe	26
PID 1724 wrote to memory of 1632	1724	rundll32.exe	26
PID 1724 wrote to memory of 1632	1724	rundll32.exe	26
PID 1724 wrote to memory of 1632	1724	rundll32.exe	26
PID 1724 wrote to memory of 1632	1724	rundll32.exe	26
PID 1724 wrote to memory of 1632	1724	rundll32.exe	26

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e4e38b97d0cb5cb3c5d11a3254a89d0199c2c3e43eb51c11c5cc5fab97393d35.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e4e38b97d0cb5cb3c5d11a3254a89d0199c2c3e43eb51c11c5cc5fab97393d35.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1632

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1632-3-0x00000000761E1000-0x00000000761E3000-memory.dmp

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memory/1632-4-0x0000000000640000-0x000000000067D000-memory.dmp

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memory/1632-5-0x0000000000640000-0x000000000067D000-memory.dmp

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memory/1632-6-0x0000000000160000-0x0000000000161000-memory.dmp

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memory/2040-7-0x000007FEF7D90000-0x000007FEF800A000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads