dridex | 878c2ef7eba8c1fd496eb29c08bcdea9ccfd703aee18749a71fa64fad2e63062

Analysis

max time kernel
67s
max time network
149s
platform
windows10_x64
resource
win10-en-20211208
submitted
24-12-2021 10:07

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General

Target

878c2ef7eba8c1fd496eb29c08bcdea9ccfd703aee18749a71fa64fad2e63062.dll
Size

552KB
MD5

355b690b41fc9f2c7dc7e052d9b5e225
SHA1

aa237fb874f6483170daf182158242be1991a5ea
SHA256

878c2ef7eba8c1fd496eb29c08bcdea9ccfd703aee18749a71fa64fad2e63062
SHA512

46f4a2b96c38143b837dae68771aab4c79c10aa4b4fdd2c828157f9b3efb11558460820a1667914d1ec9297ed01e78ceb3f74477c0c42eb4b27731988c57012d

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/2776-116-0x0000000074280000-0x000000007430C000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2984 2776 WerFault.exe rundll32.exe

pid	pid_target	process	target process
2984	2776	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
2984	WerFault.exe
2984	WerFault.exe
2984	WerFault.exe
2984	WerFault.exe
2984	WerFault.exe
2984	WerFault.exe
2984	WerFault.exe
2984	WerFault.exe
2984	WerFault.exe
2984	WerFault.exe
2984	WerFault.exe
2984	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 2984 WerFault.exe
Token: SeBackupPrivilege 2984 WerFault.exe
Token: SeDebugPrivilege 2984 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	2984	WerFault.exe
Token: SeBackupPrivilege	2984	WerFault.exe
Token: SeDebugPrivilege	2984	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2308 wrote to memory of 2776	2308	rundll32.exe	rundll32.exe
PID 2308 wrote to memory of 2776	2308	rundll32.exe	rundll32.exe
PID 2308 wrote to memory of 2776	2308	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\878c2ef7eba8c1fd496eb29c08bcdea9ccfd703aee18749a71fa64fad2e63062.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2308

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\878c2ef7eba8c1fd496eb29c08bcdea9ccfd703aee18749a71fa64fad2e63062.dll,#1
2⤵
PID:2776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2776 -s 628
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2984

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2776-115-0x0000000000000000-mapping.dmp

Download
memory/2776-116-0x0000000074280000-0x000000007430C000-memory.dmp

Filesize
560KB

Download
memory/2776-118-0x00000000030A0000-0x00000000030A6000-memory.dmp

Filesize
24KB

Download