dridex | e8291c194029eedc2117c099b3089a252dfb940160530409df4b9ea85efc9033

Analysis

max time kernel
130s
max time network
126s
platform
windows7_x64
resource
win7-en-20210920
submitted
21-10-2021 19:07

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General

Target

2_api-ms-win-downlevel-normaliz-l1-1-0.dll
Size

180KB
MD5

00752a06db0eacfd3b09e36d3a3d29c6
SHA1

9afd6ace7a8b25a58450cf7ec16db38a480c32dc
SHA256

e8291c194029eedc2117c099b3089a252dfb940160530409df4b9ea85efc9033
SHA512

1895a988c678e30ceac1afb421dc29fc6531617b0a5497ec50ae90b2cf85bf62724ad830576e9394cecd6f334f864fa6630a763671b30a91dfe0aa052315ebfe

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/772-56-0x0000000074730000-0x000000007475F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1576 772 WerFault.exe rundll32.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

WerFault.exe

pid process

1576 WerFault.exe
1576 WerFault.exe
1576 WerFault.exe
1576 WerFault.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

WerFault.exe

pid process

1576 WerFault.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WerFault.exe

description pid process

Token: SeDebugPrivilege 1576 WerFault.exe

pid	pid_target	process	target process
1576	772	WerFault.exe	rundll32.exe

pid	process
1576	WerFault.exe
1576	WerFault.exe
1576	WerFault.exe
1576	WerFault.exe

pid	process
1576	WerFault.exe

description	pid	process
Token: SeDebugPrivilege	1576	WerFault.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1888 wrote to memory of 772	1888	rundll32.exe	rundll32.exe
PID 1888 wrote to memory of 772	1888	rundll32.exe	rundll32.exe
PID 1888 wrote to memory of 772	1888	rundll32.exe	rundll32.exe
PID 1888 wrote to memory of 772	1888	rundll32.exe	rundll32.exe
PID 1888 wrote to memory of 772	1888	rundll32.exe	rundll32.exe
PID 1888 wrote to memory of 772	1888	rundll32.exe	rundll32.exe
PID 1888 wrote to memory of 772	1888	rundll32.exe	rundll32.exe
PID 772 wrote to memory of 1576	772	rundll32.exe	WerFault.exe
PID 772 wrote to memory of 1576	772	rundll32.exe	WerFault.exe
PID 772 wrote to memory of 1576	772	rundll32.exe	WerFault.exe
PID 772 wrote to memory of 1576	772	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2_api-ms-win-downlevel-normaliz-l1-1-0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1888

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2_api-ms-win-downlevel-normaliz-l1-1-0.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 772 -s 252
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1576

MITRE ATT&CK Matrix

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Downloads

memory/772-54-0x0000000000000000-mapping.dmp

Download
memory/772-55-0x0000000075FA1000-0x0000000075FA3000-memory.dmp

Filesize
8KB

Download
memory/772-56-0x0000000074730000-0x000000007475F000-memory.dmp

Filesize
188KB

Download
memory/772-59-0x0000000000150000-0x0000000000156000-memory.dmp

Filesize
24KB

Download
memory/1576-58-0x0000000000000000-mapping.dmp

Download
memory/1576-60-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download