dridex | 4ef049a69d2343a538b8563388f2a9f6838e8e864c6738b1e4934a4e377369a9

Analysis

max time kernel
110s
max time network
108s
platform
windows7_x64
resource
win7v20201028
submitted
03-11-2020 16:39

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General

Target

Qdfo3phy.dll
Size

668KB
MD5

e16a166beb4c710daa177c316febf54c
SHA1

4f2c2e15fbf3b683bc0dfe38353d2f7eee8632a4
SHA256

4ef049a69d2343a538b8563388f2a9f6838e8e864c6738b1e4934a4e377369a9
SHA512

1808ce32bdc372e464a0c8567b476d6a19eac45c187affc3216bdd98d3f7374fce64c2589e8de84cf4781638cd1f0026148b69358cc33327653d2432ce25ccb5

Score

10^/10

dridex 10555 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10555

195.154.237.245:443

46.105.131.73:8172

91.238.160.158:18443

213.183.128.99:3786

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/1644-1-0x00000000746C0000-0x00000000746FD000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

3 1644 rundll32.exe
6 1644 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	1644	rundll32.exe
6	1644	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 1004 wrote to memory of 1644	1004	rundll32.exe	rundll32.exe
PID 1004 wrote to memory of 1644	1004	rundll32.exe	rundll32.exe
PID 1004 wrote to memory of 1644	1004	rundll32.exe	rundll32.exe
PID 1004 wrote to memory of 1644	1004	rundll32.exe	rundll32.exe
PID 1004 wrote to memory of 1644	1004	rundll32.exe	rundll32.exe
PID 1004 wrote to memory of 1644	1004	rundll32.exe	rundll32.exe
PID 1004 wrote to memory of 1644	1004	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Qdfo3phy.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1004

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Qdfo3phy.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1644

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/844-2-0x000007FEF7160000-0x000007FEF73DA000-memory.dmp

Filesize
2.5MB

Download
memory/1644-0-0x0000000000000000-mapping.dmp

Download
memory/1644-1-0x00000000746C0000-0x00000000746FD000-memory.dmp

Filesize
244KB

Download