dridex | 1005ea3708ff06e351fe013fa1548963312ce04ed023441c4382d93233a28487

Analysis

max time kernel
34s
max time network
91s
platform
windows7_x64
resource
win7v20201028
submitted
24/02/2021, 15:37

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General

Target
1005ea3708ff06e351fe013fa1548963312ce04ed023441c4382d93233a28487.dll
Size 188KB
Sample210224-lmxk2la3k2
SHA256 1005ea3708ff06e351fe013fa1548963312ce04ed023441c4382d93233a28487
MD5 9b4d2379b9a409f305dd807c078ac874
SHA1 1f2439ec92d0fee9fad0a78e61d707e18ea497ae
SHA512 0bb767e98e2163e0e110ed7c1b110eee8aa62d6bf11964a29f3ec889f61ecce1015c3655960993dcc6fc98f9d6c5eb778b54d8660a439fbf2ea817a973da105d
MD5 SHA1 SHA512

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

209.151.236.42:443
91.121.94.86:8172
5.189.144.136:6516

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral1/memory/2020-5-0x00000000748E0000-0x0000000074911000-memory.dmp	dridex_ldr
behavioral1/memory/2020-7-0x00000000748E0000-0x00000000748FF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
4	2020	rundll32.exe
7	2020	rundll32.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

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 7 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 2020	1888	rundll32.exe	26
PID 1888 wrote to memory of 2020	1888	rundll32.exe	26
PID 1888 wrote to memory of 2020	1888	rundll32.exe	26
PID 1888 wrote to memory of 2020	1888	rundll32.exe	26
PID 1888 wrote to memory of 2020	1888	rundll32.exe	26
PID 1888 wrote to memory of 2020	1888	rundll32.exe	26
PID 1888 wrote to memory of 2020	1888	rundll32.exe	26

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1005ea3708ff06e351fe013fa1548963312ce04ed023441c4382d93233a28487.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1888
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1005ea3708ff06e351fe013fa1548963312ce04ed023441c4382d93233a28487.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:2020

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1728-8-0x000007FEF6080000-0x000007FEF62FA000-memory.dmp

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memory/2020-3-0x0000000075781000-0x0000000075783000-memory.dmp

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memory/2020-4-0x0000000074570000-0x0000000074713000-memory.dmp

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memory/2020-5-0x00000000748E0000-0x0000000074911000-memory.dmp

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memory/2020-6-0x0000000000180000-0x0000000000186000-memory.dmp

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memory/2020-7-0x00000000748E0000-0x00000000748FF000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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