dridex | 65b2a71e8172d5d4e07102152c69eede97d2ceb1da8c00b83af53a037eb41bea

Analysis

max time kernel
121s
max time network
150s
platform
windows10_x64
resource
win10-en-20210920
submitted
21-10-2021 20:21

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General

Target

65b2a71e8172d5d4e07102152c69eede97d2ceb1da8c00b83af53a037eb41bea.dll
Size

180KB
MD5

24c59e71e91bb28defa958d0461a1e1e
SHA1

84bea40928f1036598fd7d1f102951e6b36a9424
SHA256

65b2a71e8172d5d4e07102152c69eede97d2ceb1da8c00b83af53a037eb41bea
SHA512

3239aab1150504a14a69d586b45718182f61904c8ab06167112d3d86db4c0ac4db5ec7d729c0a71359c5374de724b2471fb346861f9b9f62164810ecbcf522a1

Score

10^/10

dridex 22201 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22201

212.237.17.99:443

176.28.17.160:6602

51.254.140.238:8333

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/3804-116-0x00000000737C0000-0x00000000737EF000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

776 3804 WerFault.exe rundll32.exe

pid	pid_target	process	target process
776	3804	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
776	WerFault.exe
776	WerFault.exe
776	WerFault.exe
776	WerFault.exe
776	WerFault.exe
776	WerFault.exe
776	WerFault.exe
776	WerFault.exe
776	WerFault.exe
776	WerFault.exe
776	WerFault.exe
776	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 776 WerFault.exe
Token: SeBackupPrivilege 776 WerFault.exe
Token: SeDebugPrivilege 776 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	776	WerFault.exe
Token: SeBackupPrivilege	776	WerFault.exe
Token: SeDebugPrivilege	776	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1680 wrote to memory of 3804	1680	rundll32.exe	rundll32.exe
PID 1680 wrote to memory of 3804	1680	rundll32.exe	rundll32.exe
PID 1680 wrote to memory of 3804	1680	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\65b2a71e8172d5d4e07102152c69eede97d2ceb1da8c00b83af53a037eb41bea.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1680

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\65b2a71e8172d5d4e07102152c69eede97d2ceb1da8c00b83af53a037eb41bea.dll,#1
2⤵
PID:3804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3804 -s 624
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:776

Network

MITRE ATT&CK Matrix

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Downloads

memory/3804-115-0x0000000000000000-mapping.dmp

Download
memory/3804-116-0x00000000737C0000-0x00000000737EF000-memory.dmp

Filesize
188KB

Download
memory/3804-118-0x0000000000BD0000-0x0000000000BD6000-memory.dmp

Filesize
24KB

Download