dridex | a63d5af0c6d5817dd92a3efad5233a75704268b37194f4a36765af2d753dbf6e

Analysis

max time kernel
123s
max time network
123s
platform
windows7_x64
resource
win7-en-20210920
submitted
18-10-2021 16:02

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General

Target

7_docprop.dll
Size

180KB
MD5

ec40302c6da1f3379ad2db586768b348
SHA1

92d1815b0a70b317ba2efd4d027500bc16e1fd38
SHA256

a63d5af0c6d5817dd92a3efad5233a75704268b37194f4a36765af2d753dbf6e
SHA512

dce2177af00538e9c4809d8f6fd44cd440b7c76edb854e006497c591ce0cfff19b6c37d63c768846f5b37e5dc3f4dde32fa42fe802cd9378b2e55d4cafaf3702

Score

10^/10

dridex 22203 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22203

195.154.146.84:443

45.56.121.87:8116

157.245.222.44:5723

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/1028-56-0x0000000075220000-0x000000007524F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1668 1028 WerFault.exe rundll32.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

WerFault.exe

pid process

1668 WerFault.exe
1668 WerFault.exe
1668 WerFault.exe
1668 WerFault.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

WerFault.exe

pid process

1668 WerFault.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WerFault.exe

description pid process

Token: SeDebugPrivilege 1668 WerFault.exe

pid	pid_target	process	target process
1668	1028	WerFault.exe	rundll32.exe

pid	process
1668	WerFault.exe
1668	WerFault.exe
1668	WerFault.exe
1668	WerFault.exe

pid	process
1668	WerFault.exe

description	pid	process
Token: SeDebugPrivilege	1668	WerFault.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 612 wrote to memory of 1028	612	rundll32.exe	rundll32.exe
PID 612 wrote to memory of 1028	612	rundll32.exe	rundll32.exe
PID 612 wrote to memory of 1028	612	rundll32.exe	rundll32.exe
PID 612 wrote to memory of 1028	612	rundll32.exe	rundll32.exe
PID 612 wrote to memory of 1028	612	rundll32.exe	rundll32.exe
PID 612 wrote to memory of 1028	612	rundll32.exe	rundll32.exe
PID 612 wrote to memory of 1028	612	rundll32.exe	rundll32.exe
PID 1028 wrote to memory of 1668	1028	rundll32.exe	WerFault.exe
PID 1028 wrote to memory of 1668	1028	rundll32.exe	WerFault.exe
PID 1028 wrote to memory of 1668	1028	rundll32.exe	WerFault.exe
PID 1028 wrote to memory of 1668	1028	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7_docprop.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:612

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7_docprop.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:1028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1028 -s 252
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1668

MITRE ATT&CK Matrix

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Downloads

memory/1028-54-0x0000000000000000-mapping.dmp

Download
memory/1028-55-0x0000000075651000-0x0000000075653000-memory.dmp

Filesize
8KB

Download
memory/1028-56-0x0000000075220000-0x000000007524F000-memory.dmp

Filesize
188KB

Download
memory/1028-58-0x0000000000130000-0x0000000000136000-memory.dmp

Filesize
24KB

Download
memory/1668-59-0x0000000000000000-mapping.dmp

Download
memory/1668-61-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download