dridex | 6c2e66ead666e7f13a339a6e1b11913baa9e1fcf4b0d4dffa08fc1103daab9a1

General

Target

1041f810932396eeaf03f38aa5cdda8b.dll
Size

750KB
MD5

1041f810932396eeaf03f38aa5cdda8b
SHA1

41005dfc42fdf1f0c97c83cd5d017e9694d4e198
SHA256

6c2e66ead666e7f13a339a6e1b11913baa9e1fcf4b0d4dffa08fc1103daab9a1
SHA512

6bf75bf3284c641a24e8804fb188b2884e479e283f5fa316dd4bd6157bbb3672d70d294572a2eb0a6d4c1d40ed3fea5cb6913340645374d8ebb9e2c8359a42cf

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

24 3596 rundll32.exe
26 3596 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
24	3596	rundll32.exe
26	3596	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 2116 wrote to memory of 3596	2116	rundll32.exe	rundll32.exe
PID 2116 wrote to memory of 3596	2116	rundll32.exe	rundll32.exe
PID 2116 wrote to memory of 3596	2116	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1041f810932396eeaf03f38aa5cdda8b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2116

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1041f810932396eeaf03f38aa5cdda8b.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:3596

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/3596-116-0x0000000000000000-mapping.dmp

Download
memory/3596-117-0x0000000073DA0000-0x0000000073E69000-memory.dmp

Filesize
804KB

Download
memory/3596-119-0x0000000073DA0000-0x0000000073E69000-memory.dmp

Filesize
804KB

Download
memory/3596-118-0x0000000073DA0000-0x0000000073DDD000-memory.dmp

Filesize
244KB

Download
memory/3596-122-0x00000000008E0000-0x00000000008E1000-memory.dmp

Filesize
4KB

Download
memory/3596-121-0x00000000008E0000-0x00000000008E1000-memory.dmp

Filesize
4KB

Download
memory/3596-123-0x00000000008E0000-0x00000000008E1000-memory.dmp

Filesize
4KB

Download
memory/3596-691-0x00000000008D0000-0x00000000008D1000-memory.dmp

Filesize
4KB

Download

Analysis

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