dridex | 0e05563f14300ca66f0bc35532feb92e6e0023e8bb124de7975cc1a5de97d714

Analysis

max time kernel
6s
max time network
66s
platform
windows7_x64
resource
win7v20201028
submitted
08/12/2020, 10:03

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General

Target
ny2tqvzip.dll
Size 412KB
Sample201208-9g2xjfx8se
SHA256 0e05563f14300ca66f0bc35532feb92e6e0023e8bb124de7975cc1a5de97d714
MD5 e231230db7f22a3977bbfa422d84724d
SHA1 72788c18e5677d4f6980bdc85da0b143b7068ef3
SHA512 cd5b2f9d0d3b18ac123532d240d5b1811d66c39d127de6bd7738ce39223a2fc81a34cab1c20e1dcd781e443aa26f4a050a36bc74b8c6aea87b2e626a598df455
MD5 SHA1 SHA512

Score

10^/10

dridex 10555 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10555

104.131.164.93:443
46.101.90.205:4643
27.254.174.84:4443
92.94.251.127:3786

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

resource	yara_rule
behavioral1/memory/1300-3-0x0000000000300000-0x000000000033D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

flow	pid	Process
3	1300	rundll32.exe
6	1300	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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 1300	1916	rundll32.exe	25
PID 1916 wrote to memory of 1300	1916	rundll32.exe	25
PID 1916 wrote to memory of 1300	1916	rundll32.exe	25
PID 1916 wrote to memory of 1300	1916	rundll32.exe	25
PID 1916 wrote to memory of 1300	1916	rundll32.exe	25
PID 1916 wrote to memory of 1300	1916	rundll32.exe	25
PID 1916 wrote to memory of 1300	1916	rundll32.exe	25

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ny2tqvzip.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ny2tqvzip.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1300

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/532-4-0x000007FEF6270000-0x000007FEF64EA000-memory.dmp

Download

memory/1300-3-0x0000000000300000-0x000000000033D000-memory.dmp