dridex | 783bd484843b735ee56ae545096340316f72ad5d6c7ffca781d4c11d93d19a14

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-en-20211208
submitted
23-12-2021 14:55

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General

Target

triage_dropped_file.dll
Size

552KB
MD5

932edd5c60a6f8f0ba664d86c2666858
SHA1

05bbed7f81d175b74f5d8b81b249af89141cbd30
SHA256

783bd484843b735ee56ae545096340316f72ad5d6c7ffca781d4c11d93d19a14
SHA512

717508749ca0b938f4bba2cebd53ccbb7b1ddf40453799240de179ca6a929d5e274cd5c5a0e48d8520af1031c2af0929ce4fcfbfc7a9290d5171a8ac115f050a

Score

10^/10

dridex 22201 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22201

144.91.122.102:443

85.10.248.28:593

185.4.135.27:5228

80.211.3.13:8116

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/1528-56-0x00000000753A0000-0x000000007542C000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

808 1528 WerFault.exe rundll32.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

WerFault.exe

pid process

808 WerFault.exe
808 WerFault.exe
808 WerFault.exe
808 WerFault.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

WerFault.exe

pid process

808 WerFault.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WerFault.exe

description pid process

Token: SeDebugPrivilege 808 WerFault.exe

pid	pid_target	process	target process
808	1528	WerFault.exe	rundll32.exe

pid	process
808	WerFault.exe
808	WerFault.exe
808	WerFault.exe
808	WerFault.exe

pid	process
808	WerFault.exe

description	pid	process
Token: SeDebugPrivilege	808	WerFault.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1740 wrote to memory of 1528	1740	rundll32.exe	rundll32.exe
PID 1740 wrote to memory of 1528	1740	rundll32.exe	rundll32.exe
PID 1740 wrote to memory of 1528	1740	rundll32.exe	rundll32.exe
PID 1740 wrote to memory of 1528	1740	rundll32.exe	rundll32.exe
PID 1740 wrote to memory of 1528	1740	rundll32.exe	rundll32.exe
PID 1740 wrote to memory of 1528	1740	rundll32.exe	rundll32.exe
PID 1740 wrote to memory of 1528	1740	rundll32.exe	rundll32.exe
PID 1528 wrote to memory of 808	1528	rundll32.exe	WerFault.exe
PID 1528 wrote to memory of 808	1528	rundll32.exe	WerFault.exe
PID 1528 wrote to memory of 808	1528	rundll32.exe	WerFault.exe
PID 1528 wrote to memory of 808	1528	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1740

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:1528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1528 -s 224
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:808

MITRE ATT&CK Matrix

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Downloads

memory/808-58-0x0000000000000000-mapping.dmp

Download
memory/808-61-0x0000000000420000-0x0000000000421000-memory.dmp

Filesize
4KB

Download
memory/1528-54-0x0000000000000000-mapping.dmp

Download
memory/1528-55-0x00000000766D1000-0x00000000766D3000-memory.dmp

Filesize
8KB

Download
memory/1528-56-0x00000000753A0000-0x000000007542C000-memory.dmp

Filesize
560KB

Download
memory/1528-60-0x00000000000B0000-0x00000000000B6000-memory.dmp

Filesize
24KB

Download