dridex | 3caf6edc00a51c089f5c4adddb36b71444b418aa14953f339214461d83de9e74

Analysis

max time kernel
74s
max time network
120s
platform
windows10_x64
resource
win10v20201028
submitted
22/03/2021, 12:36

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General

Target
xunogr5l.zip.dll
Size 372KB
Sample210322-9tx2xbd8nj
SHA256 3caf6edc00a51c089f5c4adddb36b71444b418aa14953f339214461d83de9e74
MD5 fa3a861db77ac759edf122648ca55f81
SHA1 18793d0c3d506b8872b75f1283c8edee76865942
SHA512 78d5886b400791a1597c15a435bf18ea36dd2c87c6349c4ed042b12ff90f860e8b6c136ac0c16f340d09869e733fa961063cf88aa8ee97290424e72c5c1b7646
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
behavioral2/memory/644-4-0x0000000000DB1000-0x0000000000E00000-memory.dmp	dridex_ldr
behavioral2/memory/644-5-0x0000000000DB0000-0x0000000000DED000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
15	644	rundll32.exe
17	644	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 3584 wrote to memory of 644	3584	rundll32.exe	70
PID 3584 wrote to memory of 644	3584	rundll32.exe	70
PID 3584 wrote to memory of 644	3584	rundll32.exe	70

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\xunogr5l.zip.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3584
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\xunogr5l.zip.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:644

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/644-4-0x0000000000DB1000-0x0000000000E00000-memory.dmp

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memory/644-3-0x0000000000570000-0x0000000000571000-memory.dmp

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memory/644-5-0x0000000000DB0000-0x0000000000DED000-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