dridex | 3fde380555135b231bdff61f8ff4a28169e4df0c6b9eab4378cbf50160f3a235

Analysis

max time kernel
141s
max time network
118s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
02/07/2024, 12:22

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General

Target

1f4f8c28e684d5db5ce22f7742826700_JaffaCakes118.dll
Size

248KB
MD5

1f4f8c28e684d5db5ce22f7742826700
SHA1

282a9257541437dbc586d4f953f4092f96dccaaa
SHA256

3fde380555135b231bdff61f8ff4a28169e4df0c6b9eab4378cbf50160f3a235
SHA512

5fc8d07c066114dbf1af31e0774c3c8a8a8c39c44be9b12bf28282f1daa7aa02fa335397620c3a27c3a49751983497ae656712f01be393871b359d5404949af9
SSDEEP

6144:SSaBi2ZFUOnhD8mc3oOpvXZ26u/6mv5gdC:SXRZHnhvfOpvXUx/6cgdC

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

77.220.64.149:443

80.11.32.115:4646

77.81.247.140:5037

rc4.plain

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/2036-0-0x0000000075390000-0x00000000753D0000-memory.dmp	dridex_ldr
behavioral1/memory/2036-3-0x0000000075390000-0x00000000753D0000-memory.dmp	dridex_ldr
behavioral1/memory/2036-7-0x0000000075390000-0x00000000753D0000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
3	2036	rundll32.exe
7	2036	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 2364 wrote to memory of 2036	2364	rundll32.exe	28
PID 2364 wrote to memory of 2036	2364	rundll32.exe	28
PID 2364 wrote to memory of 2036	2364	rundll32.exe	28
PID 2364 wrote to memory of 2036	2364	rundll32.exe	28
PID 2364 wrote to memory of 2036	2364	rundll32.exe	28
PID 2364 wrote to memory of 2036	2364	rundll32.exe	28
PID 2364 wrote to memory of 2036	2364	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f4f8c28e684d5db5ce22f7742826700_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f4f8c28e684d5db5ce22f7742826700_JaffaCakes118.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:2036

Network

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/2036-0-0x0000000075390000-0x00000000753D0000-memory.dmp

Filesize
256KB

Download
memory/2036-2-0x0000000000190000-0x0000000000196000-memory.dmp

Filesize
24KB

Download
memory/2036-3-0x0000000075390000-0x00000000753D0000-memory.dmp

Filesize
256KB

Download
memory/2036-7-0x0000000075390000-0x00000000753D0000-memory.dmp

Filesize
256KB

Download