dridex | 0a1737cbeb9c18307b1c5f3948487c17c7f0e41b7cc70665f4947ba0fc459621

Analysis

max time kernel
110s
max time network
142s
platform
windows10_x64
resource
win10v20201028
submitted
24-02-2021 23:20

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General

Target

0a1737cbeb9c18307b1c5f3948487c17c7f0e41b7cc70665f4947ba0fc459621.dll
Size

188KB
MD5

14cd69099af5ec5f6a88e7c3f2daba3a
SHA1

5cbc14f91bcc3273aa2ac5ba4cd070b1bb4f239f
SHA256

0a1737cbeb9c18307b1c5f3948487c17c7f0e41b7cc70665f4947ba0fc459621
SHA512

18a1e9d1c376f7f808304a3de28c410ebbd7a2c5d1b7fd03838887085936284178eb218527527d6e6a20399cd3849f952f918b4fe0d0b864472abb0d8fddccd2

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

209.151.236.42:443

91.121.94.86:8172

5.189.144.136:6516

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/4080-3-0x00000000737C0000-0x00000000737F1000-memory.dmp	dridex_ldr
behavioral2/memory/4080-5-0x00000000737C0000-0x00000000737DF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

15 4080 rundll32.exe
17 4080 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
15	4080	rundll32.exe
17	4080	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 496 wrote to memory of 4080	496	rundll32.exe	rundll32.exe
PID 496 wrote to memory of 4080	496	rundll32.exe	rundll32.exe
PID 496 wrote to memory of 4080	496	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0a1737cbeb9c18307b1c5f3948487c17c7f0e41b7cc70665f4947ba0fc459621.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:496

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0a1737cbeb9c18307b1c5f3948487c17c7f0e41b7cc70665f4947ba0fc459621.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:4080

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/4080-2-0x0000000000000000-mapping.dmp

Download
memory/4080-3-0x00000000737C0000-0x00000000737F1000-memory.dmp

Filesize
196KB

Download
memory/4080-4-0x0000000002840000-0x0000000002846000-memory.dmp

Filesize
24KB

Download
memory/4080-5-0x00000000737C0000-0x00000000737DF000-memory.dmp

Filesize
124KB

Download