dridex | 19e17bb561d6e25fd9f72feec12a85df3002c67481e1950395aa8ea1b0930292

Analysis

max time kernel
24s
max time network
134s
platform
windows10_x64
resource
win10v20201028
submitted
03-03-2021 19:06

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General

Target

19e17bb561d6e25fd9f72feec12a85df3002c67481e1950395aa8ea1b0930292.dll
Size

188KB
MD5

f5d4c93e70b8d73c20906c3b889f4c9a
SHA1

158bfb44064471b15cce22818df41a813dd00c12
SHA256

19e17bb561d6e25fd9f72feec12a85df3002c67481e1950395aa8ea1b0930292
SHA512

e53218fbf5858c1d890e55cc35245e76a577b2e13f277562d71974d4e71346ed2289d7a6662e3a9678f4321ca9a45bca5c4b8763def4f034fb2b6261c8dc5058

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

116.251.211.158:443

216.10.242.142:6601

37.247.35.137:6601

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/1232-3-0x0000000073EE0000-0x0000000073F11000-memory.dmp	dridex_ldr
behavioral2/memory/1232-5-0x0000000073EE0000-0x0000000073EFF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

16 1232 rundll32.exe
18 1232 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
16	1232	rundll32.exe
18	1232	rundll32.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1144 wrote to memory of 1232	1144	rundll32.exe	rundll32.exe
PID 1144 wrote to memory of 1232	1144	rundll32.exe	rundll32.exe
PID 1144 wrote to memory of 1232	1144	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\19e17bb561d6e25fd9f72feec12a85df3002c67481e1950395aa8ea1b0930292.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1144

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\19e17bb561d6e25fd9f72feec12a85df3002c67481e1950395aa8ea1b0930292.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1232

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/1232-2-0x0000000000000000-mapping.dmp

Download
memory/1232-3-0x0000000073EE0000-0x0000000073F11000-memory.dmp

Filesize
196KB

Download
memory/1232-4-0x0000000003380000-0x0000000003386000-memory.dmp

Filesize
24KB

Download
memory/1232-5-0x0000000073EE0000-0x0000000073EFF000-memory.dmp

Filesize
124KB

Download