dridex | 2d8223ba637f3be700601fcc922bed02dc5ce060a23c2c34138dfcd9362320e8

Analysis

max time kernel
66s
max time network
124s
platform
windows10_x64
resource
win10-en-20211014
submitted
20-10-2021 14:59

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General

Target

5_.dll
Size

180KB
MD5

08c304d50ad0d6f861a2e81e95cf0b75
SHA1

91c1774abb3f92e89b00635202f2e3b5afa2f4e1
SHA256

2d8223ba637f3be700601fcc922bed02dc5ce060a23c2c34138dfcd9362320e8
SHA512

fa72fbf54705fa38a4849392e1943f367f6876a3a848f90f26dbf30925cc75d3ab04d832d9dc1948720f368d378696a9fe7560996ceeda545ed3d3b09f6cad56

Score

10^/10

dridex 22203 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22203

155.138.203.91:443

207.180.220.242:8116

46.101.142.214:6891

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/588-116-0x0000000073F60000-0x0000000073F8F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3172 588 WerFault.exe rundll32.exe

pid	pid_target	process	target process
3172	588	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
3172	WerFault.exe
3172	WerFault.exe
3172	WerFault.exe
3172	WerFault.exe
3172	WerFault.exe
3172	WerFault.exe
3172	WerFault.exe
3172	WerFault.exe
3172	WerFault.exe
3172	WerFault.exe
3172	WerFault.exe
3172	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 3172 WerFault.exe
Token: SeBackupPrivilege 3172 WerFault.exe
Token: SeDebugPrivilege 3172 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	3172	WerFault.exe
Token: SeBackupPrivilege	3172	WerFault.exe
Token: SeDebugPrivilege	3172	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2680 wrote to memory of 588	2680	rundll32.exe	rundll32.exe
PID 2680 wrote to memory of 588	2680	rundll32.exe	rundll32.exe
PID 2680 wrote to memory of 588	2680	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5_.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2680

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5_.dll,#1
2⤵
PID:588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 588 -s 620
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3172

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/588-115-0x0000000000000000-mapping.dmp

Download
memory/588-116-0x0000000073F60000-0x0000000073F8F000-memory.dmp

Filesize
188KB

Download
memory/588-118-0x0000000002EE0000-0x000000000302A000-memory.dmp

Filesize
1.3MB

Download