dridex | 163fe3e1545012147aeca9c14a90a0d7f52f624f664d8365052657a76fc481a4

Analysis

max time kernel
40s
max time network
45s
platform
windows7_x64
resource
win7-20220414-en
submitted
11-06-2022 16:56

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General

Target

raw0rbp9s.dll
Size

311KB
MD5

af7dde49c27f97cd77b03a8ace70beea
SHA1

daafa2be3a79192b311774db9bc7123a6040825f
SHA256

163fe3e1545012147aeca9c14a90a0d7f52f624f664d8365052657a76fc481a4
SHA512

52700a5fc9b93bc65a78d64c3ab50fcc0cdbd3c87a12679eb1fdf912ff1bdfa6a3a5942a4b1e58cecd928154383fc07831bb67ff6e35d753a279210f60c64633

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

77.220.64.37:443

80.86.91.27:3308

5.100.228.233:3389

46.105.131.65:1512

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex
Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

2 1860 rundll32.exe
4 1860 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
2	1860	rundll32.exe
4	1860	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 760 wrote to memory of 1860	760	rundll32.exe	rundll32.exe
PID 760 wrote to memory of 1860	760	rundll32.exe	rundll32.exe
PID 760 wrote to memory of 1860	760	rundll32.exe	rundll32.exe
PID 760 wrote to memory of 1860	760	rundll32.exe	rundll32.exe
PID 760 wrote to memory of 1860	760	rundll32.exe	rundll32.exe
PID 760 wrote to memory of 1860	760	rundll32.exe	rundll32.exe
PID 760 wrote to memory of 1860	760	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\raw0rbp9s.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:760

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\raw0rbp9s.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1860

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/1860-54-0x0000000000000000-mapping.dmp

Download
memory/1860-55-0x0000000076851000-0x0000000076853000-memory.dmp

Filesize
8KB

Download
memory/1860-56-0x0000000000120000-0x000000000015D000-memory.dmp

Filesize
244KB

Download
memory/1860-57-0x0000000000270000-0x00000000002AD000-memory.dmp

Filesize
244KB

Download
memory/1860-58-0x0000000000270000-0x00000000002AD000-memory.dmp

Filesize
244KB

Download