dridex | d7093640c50ebce8ea387148099bb0e30c9387d2748f728f10398dfd4e365450

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7v20201028
submitted
12-11-2020 12:20

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General

Target

ghen5nlzip.dll
Size

556KB
MD5

ee69629c63e45daebdd031f840562b34
SHA1

302b7da0d9472c75869d6c48eee9fb6b652dc618
SHA256

d7093640c50ebce8ea387148099bb0e30c9387d2748f728f10398dfd4e365450
SHA512

43033b847b28c5781b65d18a8ba898a6572b5b687b46ac03318604ee9e8aad6964f723265bb1375eecc0b66a411955823540661e1e2c3da29466a060804a5419

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

77.220.64.39:443

69.164.207.140:3388

78.47.139.43:4443

103.244.206.74:33443

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/1100-1-0x0000000001B90000-0x0000000001BCD000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow	pid	Process
4	1100	rundll32.exe
7	1100	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

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 1068 wrote to memory of 1100	1068	rundll32.exe	26
PID 1068 wrote to memory of 1100	1068	rundll32.exe	26
PID 1068 wrote to memory of 1100	1068	rundll32.exe	26
PID 1068 wrote to memory of 1100	1068	rundll32.exe	26
PID 1068 wrote to memory of 1100	1068	rundll32.exe	26
PID 1068 wrote to memory of 1100	1068	rundll32.exe	26
PID 1068 wrote to memory of 1100	1068	rundll32.exe	26

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ghen5nlzip.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1068
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ghen5nlzip.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1100

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/272-2-0x000007FEF6460000-0x000007FEF66DA000-memory.dmp

Filesize
2.5MB

Download
memory/1100-0-0x0000000000000000-mapping.dmp

Download
memory/1100-1-0x0000000001B90000-0x0000000001BCD000-memory.dmp

Filesize
244KB

Download