dridex | 3ed31acf1c76a5113d8445f71c5a31cfc447c9206d79d7346e91c5fbf2580120

Analysis

max time kernel
82s
max time network
126s
platform
windows10_x64
resource
win10-en-20211208
submitted
24-12-2021 10:43

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General

Target

3ed31acf1c76a5113d8445f71c5a31cfc447c9206d79d7346e91c5fbf2580120.dll
Size

552KB
MD5

eda07197b2531ada96d2f626410fe0bc
SHA1

2b3735876da691449235d1d6ddd25a2760211762
SHA256

3ed31acf1c76a5113d8445f71c5a31cfc447c9206d79d7346e91c5fbf2580120
SHA512

cbcf2b529436ed2dea8bcdcb0b2d37fbd43c913e829f9fb2ae07c045b6b25d22c8281f940274e1b655268041d0a4614a3348e559f7cf93a61456782d788fc021

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/3712-116-0x0000000073F20000-0x0000000073FAC000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4172 3712 WerFault.exe rundll32.exe

pid	pid_target	process	target process
4172	3712	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
4172	WerFault.exe
4172	WerFault.exe
4172	WerFault.exe
4172	WerFault.exe
4172	WerFault.exe
4172	WerFault.exe
4172	WerFault.exe
4172	WerFault.exe
4172	WerFault.exe
4172	WerFault.exe
4172	WerFault.exe
4172	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 4172 WerFault.exe
Token: SeBackupPrivilege 4172 WerFault.exe
Token: SeDebugPrivilege 4172 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	4172	WerFault.exe
Token: SeBackupPrivilege	4172	WerFault.exe
Token: SeDebugPrivilege	4172	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3608 wrote to memory of 3712	3608	rundll32.exe	rundll32.exe
PID 3608 wrote to memory of 3712	3608	rundll32.exe	rundll32.exe
PID 3608 wrote to memory of 3712	3608	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3ed31acf1c76a5113d8445f71c5a31cfc447c9206d79d7346e91c5fbf2580120.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3608

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3ed31acf1c76a5113d8445f71c5a31cfc447c9206d79d7346e91c5fbf2580120.dll,#1
2⤵
PID:3712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3712 -s 628
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4172

Network

MITRE ATT&CK Matrix

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Downloads

memory/3712-115-0x0000000000000000-mapping.dmp

Download
memory/3712-116-0x0000000073F20000-0x0000000073FAC000-memory.dmp

Filesize
560KB

Download
memory/3712-118-0x0000000002880000-0x0000000002886000-memory.dmp

Filesize
24KB

Download