dridex | fcb05de6caf64f74cd59a838ab359538bfe01fac17f3d037c06d6966a1f3ac10

Analysis

max time kernel
141s
max time network
128s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
07/07/2024, 08:17 UTC

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General

Target

16017353e67868fd3b785aa22db51efb.dll
Size

168KB
MD5

16017353e67868fd3b785aa22db51efb
SHA1

c85f9fca75fab04d74bbece3c180f318d55581dd
SHA256

0c262ad9b5f041419149ee032e82abe2f7d06d263de648214c2a484436587d9a
SHA512

ac6e5395d17aa97fd0fd2b7748c7525b139a339b9f86e14a714bc57d193af4c825c0584a446830a3fb51d68687be6f193412bab7d3c86efc5e32836454a56586
SSDEEP

3072:p+rGFFRCMcyzAAykMPqIaXpZYnvf3gx4wblxLSoIm/H2QKGB2gC:p+rGFFlXAAcqj8nHgfOoIdG

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

173.203.78.138:443

217.160.107.189:6601

77.220.64.150:5037

rc4.plain

1
394KnNivBHwUyOew1TAAkjVHEsS0Q470WPFOBwFeqxcI

rc4.plain

1
QteCzq4zRumQH6kD3Jm8YesoTzNqf135L9VSHBryxxWFnuzd6mHwNQe2lE12Wa

Signatures

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

Dridex Loader 3 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral1/memory/2700-0-0x0000000074AC0000-0x0000000074AEC000-memory.dmp	dridex_ldr
behavioral1/memory/2700-2-0x0000000074AC0000-0x0000000074AEC000-memory.dmp	dridex_ldr
behavioral1/memory/2700-7-0x0000000074AC0000-0x0000000074AEC000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
3	2700	rundll32.exe
5	2700	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 2368 wrote to memory of 2700	2368	rundll32.exe	28
PID 2368 wrote to memory of 2700	2368	rundll32.exe	28
PID 2368 wrote to memory of 2700	2368	rundll32.exe	28
PID 2368 wrote to memory of 2700	2368	rundll32.exe	28
PID 2368 wrote to memory of 2700	2368	rundll32.exe	28
PID 2368 wrote to memory of 2700	2368	rundll32.exe	28
PID 2368 wrote to memory of 2700	2368	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\16017353e67868fd3b785aa22db51efb.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\16017353e67868fd3b785aa22db51efb.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:2700

Network

No results found

173.203.78.138:443

rundll32.exe

152 B
3
173.203.78.138:443

rundll32.exe

152 B
3

No results found

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Replay Monitor

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Downloads

memory/2700-0-0x0000000074AC0000-0x0000000074AEC000-memory.dmp

Filesize
176KB

Download
memory/2700-1-0x0000000000190000-0x0000000000196000-memory.dmp

Filesize
24KB

Download
memory/2700-2-0x0000000074AC0000-0x0000000074AEC000-memory.dmp

Filesize
176KB

Download
memory/2700-7-0x0000000074AC0000-0x0000000074AEC000-memory.dmp

Filesize
176KB

Download