dridex | 54bc259cccba64f98941b3267379940093aa14083731cee2b8b5d7939e3fb123

Analysis

max time kernel
130s
max time network
121s
platform
windows7_x64
resource
win7-en-20211208
submitted
26-01-2022 17:45

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General

Target

54bc259cccba64f98941b3267379940093aa14083731cee2b8b5d7939e3fb123.dll
Size

177KB
MD5

a8b2c5da89b6054c835ea28a6ecf1350
SHA1

dc7c1fb4719d8b3beac6577feb0db2240905931a
SHA256

54bc259cccba64f98941b3267379940093aa14083731cee2b8b5d7939e3fb123
SHA512

c9d1d609ae2cda5984dd789e41936d1d938a1c9d47298b9a878a703e1677ae0a9f89a23e9316897d36c13bc10ad7fc5078d4a0c1d2ab20c2c44ca8b16d3499b9

Score

10^/10

dridex 22201 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22201

45.79.91.89:9987

157.245.231.228:6051

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/1636-56-0x0000000074740000-0x0000000074770000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1712 1636 WerFault.exe rundll32.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

WerFault.exe

pid process

1712 WerFault.exe
1712 WerFault.exe
1712 WerFault.exe
1712 WerFault.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

WerFault.exe

pid process

1712 WerFault.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WerFault.exe

description pid process

Token: SeDebugPrivilege 1712 WerFault.exe

pid	pid_target	process	target process
1712	1636	WerFault.exe	rundll32.exe

pid	process
1712	WerFault.exe
1712	WerFault.exe
1712	WerFault.exe
1712	WerFault.exe

pid	process
1712	WerFault.exe

description	pid	process
Token: SeDebugPrivilege	1712	WerFault.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1628 wrote to memory of 1636	1628	rundll32.exe	rundll32.exe
PID 1628 wrote to memory of 1636	1628	rundll32.exe	rundll32.exe
PID 1628 wrote to memory of 1636	1628	rundll32.exe	rundll32.exe
PID 1628 wrote to memory of 1636	1628	rundll32.exe	rundll32.exe
PID 1628 wrote to memory of 1636	1628	rundll32.exe	rundll32.exe
PID 1628 wrote to memory of 1636	1628	rundll32.exe	rundll32.exe
PID 1628 wrote to memory of 1636	1628	rundll32.exe	rundll32.exe
PID 1636 wrote to memory of 1712	1636	rundll32.exe	WerFault.exe
PID 1636 wrote to memory of 1712	1636	rundll32.exe	WerFault.exe
PID 1636 wrote to memory of 1712	1636	rundll32.exe	WerFault.exe
PID 1636 wrote to memory of 1712	1636	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\54bc259cccba64f98941b3267379940093aa14083731cee2b8b5d7939e3fb123.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1628

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\54bc259cccba64f98941b3267379940093aa14083731cee2b8b5d7939e3fb123.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:1636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1636 -s 236
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1712

MITRE ATT&CK Matrix

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Downloads

memory/1636-55-0x0000000075021000-0x0000000075023000-memory.dmp

Filesize
8KB

Download
memory/1636-56-0x0000000074740000-0x0000000074770000-memory.dmp

Filesize
192KB

Download
memory/1636-58-0x0000000000240000-0x00000000003D0000-memory.dmp

Filesize
1.6MB

Download
memory/1712-60-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download