dridex | 08f83f91ca07dea8a62860648919927d4895dec9cbcf5758fc6a2ea9ebff195a

Analysis

max time kernel
136s
max time network
135s
platform
windows7_x64
resource
win7v20201028
submitted
19-11-2020 06:08

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General

Target

274777e145d60271b090b51f84fad26f.dll
Size

539KB
MD5

274777e145d60271b090b51f84fad26f
SHA1

b32103f297f70c3e3ec45b2ccaeeed40f7c2bd1a
SHA256

08f83f91ca07dea8a62860648919927d4895dec9cbcf5758fc6a2ea9ebff195a
SHA512

6d24d7cce8eb628bc04ed6e7728108cd3c3644a3e70974f35cd0a462ecae35c3dde48921d013df0c079e33985eea0c0c08defe7b4cd50a0fc4408666a7ac6195

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

162.241.44.26:9443

192.232.229.53:4443

77.220.64.34:443

193.90.12.121:3098

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/1528-1-0x0000000000320000-0x000000000035D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

3 1528 rundll32.exe
7 1528 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	1528	rundll32.exe
7	1528	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 2028 wrote to memory of 1528	2028	rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1528	2028	rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1528	2028	rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1528	2028	rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1528	2028	rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1528	2028	rundll32.exe	rundll32.exe
PID 2028 wrote to memory of 1528	2028	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\274777e145d60271b090b51f84fad26f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2028

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\274777e145d60271b090b51f84fad26f.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1528

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

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Downloads

memory/752-2-0x000007FEF77C0000-0x000007FEF7A3A000-memory.dmp

Filesize
2.5MB

Download
memory/1528-0-0x0000000000000000-mapping.dmp

Download
memory/1528-1-0x0000000000320000-0x000000000035D000-memory.dmp

Filesize
244KB

Download