dridex | 230b5356406c0d2477d3048b82c31f451326332834177c15bcc30ac7418c1067

Analysis

max time kernel
124s
max time network
124s
platform
windows10_x64
resource
win10-en-20211014
submitted
20-10-2021 16:30

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General

Target

9_FDResPub.dll
Size

180KB
MD5

6ac256a1d85a3aaf1ef844019fa0f6e1
SHA1

a77c09e019b83bca9f0a8eeb9d0a7b7c623b65b4
SHA256

230b5356406c0d2477d3048b82c31f451326332834177c15bcc30ac7418c1067
SHA512

7446256888933ed9beada1a5773891588c4c252d2bd1ce458064c21e5dc1834a434690829438e6043cb4821cc8c0b291d3fe7a516aca5472ae8517b85135c3ac

Score

10^/10

dridex 22202 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22202

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/2720-116-0x00000000742A0000-0x00000000742CF000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

584 2720 WerFault.exe rundll32.exe

pid	pid_target	process	target process
584	2720	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
584	WerFault.exe
584	WerFault.exe
584	WerFault.exe
584	WerFault.exe
584	WerFault.exe
584	WerFault.exe
584	WerFault.exe
584	WerFault.exe
584	WerFault.exe
584	WerFault.exe
584	WerFault.exe
584	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 584 WerFault.exe
Token: SeBackupPrivilege 584 WerFault.exe
Token: SeDebugPrivilege 584 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	584	WerFault.exe
Token: SeBackupPrivilege	584	WerFault.exe
Token: SeDebugPrivilege	584	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1792 wrote to memory of 2720	1792	rundll32.exe	rundll32.exe
PID 1792 wrote to memory of 2720	1792	rundll32.exe	rundll32.exe
PID 1792 wrote to memory of 2720	1792	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9_FDResPub.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1792

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9_FDResPub.dll,#1
2⤵
PID:2720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2720 -s 620
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:584

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2720-115-0x0000000000000000-mapping.dmp

Download
memory/2720-116-0x00000000742A0000-0x00000000742CF000-memory.dmp

Filesize
188KB

Download
memory/2720-118-0x0000000000A70000-0x0000000000A76000-memory.dmp

Filesize
24KB

Download