dridex | 2f956a58f051e34a280d84a36e8589fea9a9b52d3973ce7c4af5961b8d4e1d96

Analysis

max time kernel
25s
max time network
134s
platform
windows10_x64
resource
win10v20201028
submitted
31/03/2021, 14:35

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General

Target
2f956a58f051e34a280d84a36e8589fea9a9b52d3973ce7c4af5961b8d4e1d96.dll
Size 377KB
Sample210331-gjqjsqhlce
SHA256 2f956a58f051e34a280d84a36e8589fea9a9b52d3973ce7c4af5961b8d4e1d96
MD5 df5d80b77f4c8cb272aff888d554a000
SHA1 7180b2fb5396a12e3d40b00c43ef8934c5754f87
SHA512 15973a0c3c74ea285e66ce9e7c59b68eddd5f7a083d2421108d5d546f348ce101d1dadce4499c9f57ca09e39721626512c0e86f9b4a4f54fbef34d1c0bdad208
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/4672-3-0x0000000074250000-0x000000007428D000-memory.dmp	dridex_ldr
behavioral2/memory/4672-4-0x0000000074250000-0x000000007428D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
19	4672	rundll32.exe
20	4672	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 4648 wrote to memory of 4672	4648	rundll32.exe	62
PID 4648 wrote to memory of 4672	4648	rundll32.exe	62
PID 4648 wrote to memory of 4672	4648	rundll32.exe	62

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2f956a58f051e34a280d84a36e8589fea9a9b52d3973ce7c4af5961b8d4e1d96.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4648
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2f956a58f051e34a280d84a36e8589fea9a9b52d3973ce7c4af5961b8d4e1d96.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:4672

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/4672-3-0x0000000074250000-0x000000007428D000-memory.dmp

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memory/4672-4-0x0000000074250000-0x000000007428D000-memory.dmp

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memory/4672-5-0x0000000002F40000-0x0000000002F41000-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