dridex | 3f33d143896bd3d9ad567f19bb95bba21bb847ee93c8dfecbf30d73d93eb4605

Analysis

max time kernel
19s
max time network
113s
platform
windows10_x64
resource
win10v20210410
submitted
15/04/2021, 08:22

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General

Target
3f33d143896bd3d9ad567f19bb95bba21bb847ee93c8dfecbf30d73d93eb4605.dll
Size 162KB
Sample210415-adyhb2shdx
SHA256 3f33d143896bd3d9ad567f19bb95bba21bb847ee93c8dfecbf30d73d93eb4605
MD5 8b8855ffa52f46e5e27d0ca0477751aa
SHA1 97c8e3d262643f2f5cbaae1da1d573bde314497d
SHA512 2433d4817d1303d255b525af4648a2361ca16701d930661125c3c1f70f10268cd7c504b2ee723cb1a197fddc26b2f84c9136a441708f8f7cdc188945133d13da
MD5 SHA1 SHA512

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

107.172.227.10:443
172.93.133.123:2303
108.168.61.147:8172

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

resource	yara_rule
behavioral2/memory/4032-115-0x0000000073D70000-0x0000000073D9E000-memory.dmp	dridex_ldr

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3768 wrote to memory of 4032	3768	rundll32.exe	71
PID 3768 wrote to memory of 4032	3768	rundll32.exe	71
PID 3768 wrote to memory of 4032	3768	rundll32.exe	71

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3f33d143896bd3d9ad567f19bb95bba21bb847ee93c8dfecbf30d73d93eb4605.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3768
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3f33d143896bd3d9ad567f19bb95bba21bb847ee93c8dfecbf30d73d93eb4605.dll,#1
  2⤵
  - Checks whether UAC is enabled
  PID:4032

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4032-115-0x0000000073D70000-0x0000000073D9E000-memory.dmp

Download

memory/4032-117-0x0000000003590000-0x0000000003596000-memory.dmp