dridex | e945693ff948a0e175152f72eb1ef3111b08ca2163c1ebfecd9d3f084a0c3210

General

Target

c55dd702da86e6d85e4829831aee6a9e.dll
Size

750KB
MD5

c55dd702da86e6d85e4829831aee6a9e
SHA1

4a9d4f9564c54d8a82da45a963ec71dc8644cd3b
SHA256

e945693ff948a0e175152f72eb1ef3111b08ca2163c1ebfecd9d3f084a0c3210
SHA512

ed41547cbed01955f4b2532511fcd4bcefa60304bd0dd6f4cc3b2e85443377e4ba17247a880d4f6db3179541558d8391ac9421d67d29ac2df3f0951ce55efaab

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

Processes:

rundll32.exe

flow pid process

23 3776 rundll32.exe
25 3776 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

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe

flow	pid	process
23	3776	rundll32.exe
25	3776	rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3484 wrote to memory of 3776	3484	rundll32.exe	rundll32.exe
PID 3484 wrote to memory of 3776	3484	rundll32.exe	rundll32.exe
PID 3484 wrote to memory of 3776	3484	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c55dd702da86e6d85e4829831aee6a9e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3484

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c55dd702da86e6d85e4829831aee6a9e.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:3776

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/3776-115-0x0000000000000000-mapping.dmp

Download
memory/3776-116-0x0000000074110000-0x00000000741D9000-memory.dmp

Filesize
804KB

Download
memory/3776-117-0x0000000074110000-0x000000007414D000-memory.dmp

Filesize
244KB

Download
memory/3776-118-0x0000000074110000-0x00000000741D9000-memory.dmp

Filesize
804KB

Download
memory/3776-121-0x0000000003040000-0x0000000003041000-memory.dmp

Filesize
4KB

Download
memory/3776-120-0x0000000003040000-0x0000000003041000-memory.dmp

Filesize
4KB

Download
memory/3776-122-0x0000000003040000-0x0000000003041000-memory.dmp

Filesize
4KB

Download
memory/3776-826-0x0000000002FE0000-0x0000000002FE1000-memory.dmp

Filesize
4KB

Download

Analysis

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