dridex | 4b2cdc3fa6ed4bc76c8f19b0dfbc7fc013b4e889fabcacf57bbdda9138777f94

Analysis

max time kernel
61s
max time network
146s
platform
windows10_x64
resource
win10v20201028
submitted
01/04/2021, 02:20

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General

Target
4b2cdc3fa6ed4bc76c8f19b0dfbc7fc013b4e889fabcacf57bbdda9138777f94.dll
Size 380KB
Sample210401-jr8a4zdx8a
SHA256 4b2cdc3fa6ed4bc76c8f19b0dfbc7fc013b4e889fabcacf57bbdda9138777f94
MD5 7c54d2959d3d6bee9c5b79c67c7076f3
SHA1 419689438ff2cc6088adc279cb9f92e06fdf9819
SHA512 8d90eeebeeadda6031d0094ff4f670b9e8d98b32dbe38db0d5c19f0fdc73a229355327807d1627dedf1e3ce2027e670334a67ec5ff5dd49a2a4f83a3e68a455e
MD5 SHA1 SHA512

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

131.100.24.215:443
210.65.244.174:6601
195.201.199.53:2303

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/3572-3-0x0000000073D40000-0x0000000073D7D000-memory.dmp	dridex_ldr
behavioral2/memory/3572-4-0x0000000073D40000-0x0000000073D7D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
22	3572	rundll32.exe
24	3572	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 1908 wrote to memory of 3572	1908	rundll32.exe	71
PID 1908 wrote to memory of 3572	1908	rundll32.exe	71
PID 1908 wrote to memory of 3572	1908	rundll32.exe	71

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4b2cdc3fa6ed4bc76c8f19b0dfbc7fc013b4e889fabcacf57bbdda9138777f94.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\4b2cdc3fa6ed4bc76c8f19b0dfbc7fc013b4e889fabcacf57bbdda9138777f94.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:3572

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/3572-3-0x0000000073D40000-0x0000000073D7D000-memory.dmp

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memory/3572-4-0x0000000073D40000-0x0000000073D7D000-memory.dmp

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memory/3572-5-0x0000000000520000-0x0000000000521000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads