dridex | bee7050122d0f8521a11ee7f2e63c70007b217b7558a49629f7a6450a447b74a

Analysis

max time kernel
50s
max time network
52s
platform
windows7_x64
resource
win7v20210408
submitted
13-10-2021 15:08

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General

Target

5_WfHC.dll
Size

180KB
MD5

172e33cda92623f3f9b3213954f52e9e
SHA1

05f886e3a9d32eb725dc4f3128c62a0165bc0506
SHA256

0d9a0d05c7ba4ae81904e64f66235e032ded422aa95de11b8a9691123f911885
SHA512

6020c33d350c062440ceb9f58bfcece422d71f9f1e36dc155c05f20df752a2a7158d5e62d66eb0f857fb2fc968cd1ed25a3f91b7de0bb4615f15af3ba5c0668e

Score

10^/10

dridex 22202 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22202

178.62.205.130:443

45.90.108.123:13786

198.199.98.78:9217

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
behavioral2/memory/1908-62-0x0000000074930000-0x000000007495F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1864 1908 WerFault.exe rundll32.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

WerFault.exe

pid process

1864 WerFault.exe
1864 WerFault.exe
1864 WerFault.exe
1864 WerFault.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WerFault.exe

description pid process

Token: SeDebugPrivilege 1864 WerFault.exe

pid	pid_target	process	target process
1864	1908	WerFault.exe	rundll32.exe

pid	process
1864	WerFault.exe
1864	WerFault.exe
1864	WerFault.exe
1864	WerFault.exe

description	pid	process
Token: SeDebugPrivilege	1864	WerFault.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 524 wrote to memory of 1908	524	rundll32.exe	rundll32.exe
PID 524 wrote to memory of 1908	524	rundll32.exe	rundll32.exe
PID 524 wrote to memory of 1908	524	rundll32.exe	rundll32.exe
PID 524 wrote to memory of 1908	524	rundll32.exe	rundll32.exe
PID 524 wrote to memory of 1908	524	rundll32.exe	rundll32.exe
PID 524 wrote to memory of 1908	524	rundll32.exe	rundll32.exe
PID 524 wrote to memory of 1908	524	rundll32.exe	rundll32.exe
PID 1908 wrote to memory of 1864	1908	rundll32.exe	WerFault.exe
PID 1908 wrote to memory of 1864	1908	rundll32.exe	WerFault.exe
PID 1908 wrote to memory of 1864	1908	rundll32.exe	WerFault.exe
PID 1908 wrote to memory of 1864	1908	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5_WfHC.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:524

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5_WfHC.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:1908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1908 -s 252
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1864

MITRE ATT&CK Matrix

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Downloads

memory/1864-65-0x0000000000000000-mapping.dmp

Download
memory/1864-67-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1908-60-0x0000000000000000-mapping.dmp

Download
memory/1908-61-0x0000000075C31000-0x0000000075C33000-memory.dmp

Filesize
8KB

Download
memory/1908-62-0x0000000074930000-0x000000007495F000-memory.dmp

Filesize
188KB

Download
memory/1908-64-0x0000000000190000-0x0000000000196000-memory.dmp

Filesize
24KB

Download