dridex | 0236d03406d27c105bd86e0e6356734aa716e88f04342e5cb17459eba9261f07

Analysis

max time kernel
31s
max time network
141s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 19:42

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General

Target

0236d03406d27c105bd86e0e6356734aa716e88f04342e5cb17459eba9261f07.dll
Size

196KB
MD5

d9fbf02c0341c723b4db0bd6ade06ff7
SHA1

736b8eea1588ae361d45378fa50790a12159d45b
SHA256

0236d03406d27c105bd86e0e6356734aa716e88f04342e5cb17459eba9261f07
SHA512

6b40d6929f2124706ecac9c83f231db9af6ddcde3ff74a7ed0b34b47111d3620d376c847cf91352c4f7a914769b80bb21e7a8b3005dd737e023ee07401644df2

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

37.247.35.132:443

50.243.30.51:6601

162.241.204.234:6516

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/3476-3-0x0000000073C80000-0x0000000073CB3000-memory.dmp	dridex_ldr
behavioral2/memory/3476-5-0x0000000073C80000-0x0000000073C9F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

19 3476 rundll32.exe
21 3476 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
19	3476	rundll32.exe
21	3476	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 3132 wrote to memory of 3476	3132	rundll32.exe	rundll32.exe
PID 3132 wrote to memory of 3476	3132	rundll32.exe	rundll32.exe
PID 3132 wrote to memory of 3476	3132	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0236d03406d27c105bd86e0e6356734aa716e88f04342e5cb17459eba9261f07.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3132

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0236d03406d27c105bd86e0e6356734aa716e88f04342e5cb17459eba9261f07.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:3476

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3476-2-0x0000000000000000-mapping.dmp

Download
memory/3476-3-0x0000000073C80000-0x0000000073CB3000-memory.dmp

Filesize
204KB

Download
memory/3476-4-0x0000000002CF0000-0x0000000002CF6000-memory.dmp

Filesize
24KB

Download
memory/3476-5-0x0000000073C80000-0x0000000073C9F000-memory.dmp

Filesize
124KB

Download