dridex | 0ba77498243b224243f4009adf9dee774cb05e0d353d540267f3e97ec457855f

Analysis

max time kernel
149s
max time network
151s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 20:04

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General

Target

0ba77498243b224243f4009adf9dee774cb05e0d353d540267f3e97ec457855f.dll
Size

196KB
MD5

0527df31a890f89f53f12a66749b4b91
SHA1

f9a21825074888a1508f39fc6fffc10a939de99f
SHA256

0ba77498243b224243f4009adf9dee774cb05e0d353d540267f3e97ec457855f
SHA512

fecd3a5d9979de1e060cb9da7662980687eecf0fae8faae7e7905a8d6c8e4b7473ff3756625069a84c4c9846d4e8bd0b7cc4baefacd2cd8d470f90fbe5753ca0

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/1192-3-0x0000000074340000-0x0000000074373000-memory.dmp	dridex_ldr
behavioral2/memory/1192-5-0x0000000074340000-0x000000007435F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 3 IoCs

Processes:

rundll32.exe

flow pid process

15 1192 rundll32.exe
17 1192 rundll32.exe
18 1192 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	1192	rundll32.exe
17	1192	rundll32.exe
18	1192	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 1036 wrote to memory of 1192	1036	rundll32.exe	rundll32.exe
PID 1036 wrote to memory of 1192	1036	rundll32.exe	rundll32.exe
PID 1036 wrote to memory of 1192	1036	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0ba77498243b224243f4009adf9dee774cb05e0d353d540267f3e97ec457855f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1036
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\0ba77498243b224243f4009adf9dee774cb05e0d353d540267f3e97ec457855f.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1192

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/1192-2-0x0000000000000000-mapping.dmp

Download
memory/1192-3-0x0000000074340000-0x0000000074373000-memory.dmp

Filesize
204KB

Download
memory/1192-4-0x00000000033E0000-0x00000000033E6000-memory.dmp

Filesize
24KB

Download
memory/1192-5-0x0000000074340000-0x000000007435F000-memory.dmp

Filesize
124KB

Download