dridex | 399f30c197f921169d05cac05c5eb564ae99268dc98eedc2ca049546f746f4cc

Analysis

max time kernel
145s
max time network
150s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 19:05

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General

Target

399f30c197f921169d05cac05c5eb564ae99268dc98eedc2ca049546f746f4cc.dll
Size

188KB
MD5

f87572cd430b017a6f8a06567d85e59d
SHA1

5430830cbf520b585c9a38e50fdb5b92e8af08ed
SHA256

399f30c197f921169d05cac05c5eb564ae99268dc98eedc2ca049546f746f4cc
SHA512

4e1ef714fd09accb64f15df5f3c21b6080da5d46f62fb0546e2d46d6defa9b1a7779856a51436570da555a9fd6f821c69b4d372672deea9ec91b00d59efa6680

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

116.251.211.158:443

216.10.242.142:6601

37.247.35.137:6601

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/1396-3-0x00000000740B0000-0x00000000740E1000-memory.dmp	dridex_ldr
behavioral2/memory/1396-5-0x00000000740B0000-0x00000000740CF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

18 1396 rundll32.exe
20 1396 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
18	1396	rundll32.exe
20	1396	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 1320 wrote to memory of 1396	1320	rundll32.exe	rundll32.exe
PID 1320 wrote to memory of 1396	1320	rundll32.exe	rundll32.exe
PID 1320 wrote to memory of 1396	1320	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\399f30c197f921169d05cac05c5eb564ae99268dc98eedc2ca049546f746f4cc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1320
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\399f30c197f921169d05cac05c5eb564ae99268dc98eedc2ca049546f746f4cc.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1396

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/1396-2-0x0000000000000000-mapping.dmp

Download
memory/1396-3-0x00000000740B0000-0x00000000740E1000-memory.dmp

Filesize
196KB

Download
memory/1396-4-0x0000000000920000-0x0000000000926000-memory.dmp

Filesize
24KB

Download
memory/1396-5-0x00000000740B0000-0x00000000740CF000-memory.dmp

Filesize
124KB

Download