dridex | a9734decc445148d3c25da89de8452032fd6cd65530e5733c02576d14abb746d

General

Target
9b5790c09a82f07884be21fc79a0bc86.dll
Size 750KB
Sample211027-sf6vjsfcd6
SHA256 a9734decc445148d3c25da89de8452032fd6cd65530e5733c02576d14abb746d
MD5 9b5790c09a82f07884be21fc79a0bc86
SHA1 2420659a7fd252eb1ec1b38e0d1d532823e42e2b
SHA512 4afceafc1e22678f5799f52d10a3dca8de8cdc6a1aaf200a74f2e356113d6b21eb721c723a2692ed02985c1507a74f15b23f55c6273428d6ebb2fae05df4d03d
MD5 SHA1 SHA512

Score

10^/10

dridex 10555 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10555

C2

192.46.210.220:443
143.244.140.214:808
45.77.0.96:6891
185.56.219.47:8116

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Blocklisted process makes network request 2 IoCs

flow	pid	Process
3	1116	rundll32.exe
5	1116	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 1200 wrote to memory of 1116	1200	rundll32.exe	27
PID 1200 wrote to memory of 1116	1200	rundll32.exe	27
PID 1200 wrote to memory of 1116	1200	rundll32.exe	27
PID 1200 wrote to memory of 1116	1200	rundll32.exe	27
PID 1200 wrote to memory of 1116	1200	rundll32.exe	27
PID 1200 wrote to memory of 1116	1200	rundll32.exe	27
PID 1200 wrote to memory of 1116	1200	rundll32.exe	27

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9b5790c09a82f07884be21fc79a0bc86.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9b5790c09a82f07884be21fc79a0bc86.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1116

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1116-54-0x00000000751A1000-0x00000000751A3000-memory.dmp

Download

memory/1116-55-0x0000000074580000-0x0000000074649000-memory.dmp

Download

memory/1116-57-0x0000000074580000-0x0000000074649000-memory.dmp

Download

memory/1116-56-0x0000000074580000-0x00000000745BD000-memory.dmp

Download

memory/1116-59-0x0000000000130000-0x0000000000131000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads