dridex | 5d34b512257bb2171dfb4a6e1fd2a8d1de5ed4e61fb51a6d2c3651a9cc121773

General

Target

f820d9c19d6a222538667f6b4b5dcf19.dll
Size

750KB
MD5

f820d9c19d6a222538667f6b4b5dcf19
SHA1

deeae3b491a84581f81f7c46bf61c7984006eb15
SHA256

5d34b512257bb2171dfb4a6e1fd2a8d1de5ed4e61fb51a6d2c3651a9cc121773
SHA512

08deac16f06d2208edc740672ff17224b01f282bc59eefde0c4bb489b315dbe4f095dfe2f29e266923e8143030f4f2622d03b7999edde1ccb4a199b4a09c767d

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 4064 rundll32.exe
24 4064 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	4064	rundll32.exe
24	4064	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 3104 wrote to memory of 4064	3104	rundll32.exe	rundll32.exe
PID 3104 wrote to memory of 4064	3104	rundll32.exe	rundll32.exe
PID 3104 wrote to memory of 4064	3104	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f820d9c19d6a222538667f6b4b5dcf19.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3104

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f820d9c19d6a222538667f6b4b5dcf19.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4064

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/4064-115-0x0000000000000000-mapping.dmp

Download
memory/4064-116-0x0000000074470000-0x0000000074539000-memory.dmp

Filesize
804KB

Download
memory/4064-118-0x0000000074470000-0x0000000074539000-memory.dmp

Filesize
804KB

Download
memory/4064-117-0x0000000074470000-0x00000000744AD000-memory.dmp

Filesize
244KB

Download
memory/4064-120-0x0000000003050000-0x0000000003051000-memory.dmp

Filesize
4KB

Download
memory/4064-123-0x0000000003050000-0x0000000003051000-memory.dmp

Filesize
4KB

Download
memory/4064-122-0x0000000003040000-0x0000000003041000-memory.dmp

Filesize
4KB

Download
memory/4064-121-0x0000000003050000-0x0000000003051000-memory.dmp

Filesize
4KB

Download

Analysis

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