dridex | 6385fc6db7fcad400241a1535d6fa42d5292d857e85e9f05c5d9d8d586a2f950

Analysis

max time kernel
145s
max time network
147s
platform
windows10_x64
resource
win10v20210410
submitted
19-04-2021 13:33

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General

Target

6385fc6db7fcad400241a1535d6fa42d5292d857e85e9f05c5d9d8d586a2f950.dll
Size

639KB
MD5

70dded12efc8d0e79b35825fa3232d1a
SHA1

77c8401624c25c1e21edad4082c140c4e5dbd8c0
SHA256

6385fc6db7fcad400241a1535d6fa42d5292d857e85e9f05c5d9d8d586a2f950
SHA512

523e9357474c92542a5a7b1b924f1f74e1dd23ec09ed3decd2fffbeb67b6e54484de5f6921fd17b88003f7e03ee02f8d1b1ce4f4a2426693e6498311630661bf

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

146.185.170.249:443

62.75.251.60:6601

185.148.168.25:2303

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

Processes:

resource	yara_rule
behavioral2/memory/4012-115-0x0000000073610000-0x000000007364D000-memory.dmp	dridex_ldr
behavioral2/memory/4012-116-0x0000000073610000-0x00000000736D3000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

16 4012 rundll32.exe
18 4012 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
16	4012	rundll32.exe
18	4012	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 4048 wrote to memory of 4012	4048	rundll32.exe	rundll32.exe
PID 4048 wrote to memory of 4012	4048	rundll32.exe	rundll32.exe
PID 4048 wrote to memory of 4012	4048	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6385fc6db7fcad400241a1535d6fa42d5292d857e85e9f05c5d9d8d586a2f950.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4048

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6385fc6db7fcad400241a1535d6fa42d5292d857e85e9f05c5d9d8d586a2f950.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4012

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/4012-114-0x0000000000000000-mapping.dmp

Download
memory/4012-115-0x0000000073610000-0x000000007364D000-memory.dmp

Filesize
244KB

Download
memory/4012-116-0x0000000073610000-0x00000000736D3000-memory.dmp

Filesize
780KB

Download
memory/4012-179-0x0000000002DE0000-0x0000000002DE1000-memory.dmp

Filesize
4KB

Download