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
MD5

e231230db7f22a3977bbfa422d84724d
SHA1

72788c18e5677d4f6980bdc85da0b143b7068ef3
SHA256

0e05563f14300ca66f0bc35532feb92e6e0023e8bb124de7975cc1a5de97d714
SHA512

cd5b2f9d0d3b18ac123532d240d5b1811d66c39d127de6bd7738ce39223a2fc81a34cab1c20e1dcd781e443aa26f4a050a36bc74b8c6aea87b2e626a598df455

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

Processes:

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

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

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

Processes:

rundll32.exe

description ioc process

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

flow	pid	process
3	1300	rundll32.exe
6	1300	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	target process
PID 1916 wrote to memory of 1300	1916	rundll32.exe	rundll32.exe
PID 1916 wrote to memory of 1300	1916	rundll32.exe	rundll32.exe
PID 1916 wrote to memory of 1300	1916	rundll32.exe	rundll32.exe
PID 1916 wrote to memory of 1300	1916	rundll32.exe	rundll32.exe
PID 1916 wrote to memory of 1300	1916	rundll32.exe	rundll32.exe
PID 1916 wrote to memory of 1300	1916	rundll32.exe	rundll32.exe
PID 1916 wrote to memory of 1300	1916	rundll32.exe	rundll32.exe

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

Filesize
2.5MB

Download
memory/1300-2-0x0000000000000000-mapping.dmp

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

Filesize
244KB

Download