dridex | c0cfee7ceb6d51139f866dd1d95fa60c3f48ae0309002714dca27d87f3c2a76f

Analysis

max time kernel
75s
max time network
88s
platform
windows7_x64
resource
win7v20201028
submitted
22/03/2021, 12:57

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General

Target
iwykxldt.rar.dll
Size 372KB
Sample210322-gvhy8ccc8a
SHA256 c0cfee7ceb6d51139f866dd1d95fa60c3f48ae0309002714dca27d87f3c2a76f
MD5 e7620933d2b493d37ff3667b80067d47
SHA1 8a9bf842502c07521e00e2d0a254e2e372b5aa48
SHA512 0b83feb5e6ef240c624c198b137cde7d8837f899b76e1303695b1a97ae6be2377ad5f67d1237bee029c944854b14609d3114ee1cc15de377d90b79727ba73e78
MD5 SHA1 SHA512

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

210.65.244.179:443
37.247.35.130:6601
103.18.108.116:6601

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/1820-4-0x0000000000450000-0x000000000048D000-memory.dmp	dridex_ldr
behavioral1/memory/1820-5-0x0000000000450000-0x000000000048D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
5	1820	rundll32.exe
8	1820	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 548 wrote to memory of 1820	548	rundll32.exe	25
PID 548 wrote to memory of 1820	548	rundll32.exe	25
PID 548 wrote to memory of 1820	548	rundll32.exe	25
PID 548 wrote to memory of 1820	548	rundll32.exe	25
PID 548 wrote to memory of 1820	548	rundll32.exe	25
PID 548 wrote to memory of 1820	548	rundll32.exe	25
PID 548 wrote to memory of 1820	548	rundll32.exe	25

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\iwykxldt.rar.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:548
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\iwykxldt.rar.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1820

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/364-7-0x000007FEF8800000-0x000007FEF8A7A000-memory.dmp

Download

memory/1820-3-0x0000000076451000-0x0000000076453000-memory.dmp

Download

memory/1820-4-0x0000000000450000-0x000000000048D000-memory.dmp

Download

memory/1820-5-0x0000000000450000-0x000000000048D000-memory.dmp

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memory/1820-6-0x0000000000120000-0x0000000000121000-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