dridex | 649b719b3ee467ea1a1c824cfc5db7a1eae33b05b9182ee4190541d32bf96b8d

Analysis

max time kernel
149s
max time network
163s
platform
windows10_x64
resource
win10-en-20211208
submitted
20-12-2021 23:19

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General

Target

SecuriteInfo.com.W32.AIDetect.malware1.19988.15866.dll
Size

468KB
MD5

eb72af61199b77c1ef42f61b43c28abf
SHA1

771925b37acbab76dfb973f24a0b08bc8c224fb3
SHA256

649b719b3ee467ea1a1c824cfc5db7a1eae33b05b9182ee4190541d32bf96b8d
SHA512

49b49e506b63d918fe077b4c620be9eca20b940db74f8527511f8b0863fa6326084fc2772d21982e4f52a9a6efcdd5503bd9f247a631fe615c7e2abc5dc3310a

Score

10^/10

dridex 22206 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22206

120.50.40.185:443

139.59.14.223:8172

121.40.104.209:6602

139.162.113.169:593

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/4040-116-0x0000000073660000-0x00000000736D6000-memory.dmp	dridex_ldr

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4540 4040 WerFault.exe rundll32.exe

pid	pid_target	process	target process
4540	4040	WerFault.exe	rundll32.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

WerFault.exe

pid	process
4540	WerFault.exe
4540	WerFault.exe
4540	WerFault.exe
4540	WerFault.exe
4540	WerFault.exe
4540	WerFault.exe
4540	WerFault.exe
4540	WerFault.exe
4540	WerFault.exe
4540	WerFault.exe
4540	WerFault.exe
4540	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 4540 WerFault.exe
Token: SeBackupPrivilege 4540 WerFault.exe
Token: SeDebugPrivilege 4540 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	4540	WerFault.exe
Token: SeBackupPrivilege	4540	WerFault.exe
Token: SeDebugPrivilege	4540	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3976 wrote to memory of 4040	3976	rundll32.exe	rundll32.exe
PID 3976 wrote to memory of 4040	3976	rundll32.exe	rundll32.exe
PID 3976 wrote to memory of 4040	3976	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetect.malware1.19988.15866.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3976

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetect.malware1.19988.15866.dll,#1
2⤵
PID:4040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 644
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4540

Network

MITRE ATT&CK Matrix

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Downloads

memory/4040-115-0x0000000000000000-mapping.dmp

Download
memory/4040-116-0x0000000073660000-0x00000000736D6000-memory.dmp

Filesize
472KB

Download
memory/4040-118-0x0000000002950000-0x0000000002956000-memory.dmp

Filesize
24KB

Download