dridex | a9866cf87de710a93e6f09754104de4fcee5613a16864ebe0a06b1f1c7ec7fe7

Analysis

max time kernel
25s
max time network
134s
platform
windows10_x64
resource
win10v20201028
submitted
24/02/2021, 15:07

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General

Target
a9866cf87de710a93e6f09754104de4fcee5613a16864ebe0a06b1f1c7ec7fe7.dll
Size 188KB
Sample210224-4eq1vddb1a
SHA256 a9866cf87de710a93e6f09754104de4fcee5613a16864ebe0a06b1f1c7ec7fe7
MD5 4fb99256184a715f80974e501060eaef
SHA1 1cfe67a1d16e5219b5051ed082b0b119504ba9ed
SHA512 33df58f481e8cd43f0f96a4de90d3d95eb8fe03d07288d4000322c6fc08220c07d0d0edc7324ca8b2cd6a50786d5f9c9d0d7f318be60c06f6e05ee474be85483
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
behavioral2/memory/4792-3-0x0000000073D90000-0x0000000073DC1000-memory.dmp	dridex_ldr
behavioral2/memory/4792-5-0x0000000073D90000-0x0000000073DAF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
16	4792	rundll32.exe
18	4792	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 3 IoCs

description	pid	Process	procid_target
PID 4764 wrote to memory of 4792	4764	rundll32.exe	46
PID 4764 wrote to memory of 4792	4764	rundll32.exe	46
PID 4764 wrote to memory of 4792	4764	rundll32.exe	46

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9866cf87de710a93e6f09754104de4fcee5613a16864ebe0a06b1f1c7ec7fe7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4764
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a9866cf87de710a93e6f09754104de4fcee5613a16864ebe0a06b1f1c7ec7fe7.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:4792

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/4792-3-0x0000000073D90000-0x0000000073DC1000-memory.dmp

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memory/4792-4-0x0000000004020000-0x0000000004026000-memory.dmp

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memory/4792-5-0x0000000073D90000-0x0000000073DAF000-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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Downloads