dridex | 8b89691e56e5c1b62188b43e0507613bc7164771320cd99b46449b947442d9a9

Analysis

max time kernel
140s
max time network
141s
platform
windows10_x64
resource
win10v20210410
submitted
21-04-2021 18:11

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General

Target

8b89691e56e5c1b62188b43e0507613bc7164771320cd99b46449b947442d9a9.dll
Size

157KB
MD5

4cb5b90d6f2745e09273279f8ce4fec9
SHA1

031a6755689530761728d7df827851ee384fffdf
SHA256

8b89691e56e5c1b62188b43e0507613bc7164771320cd99b46449b947442d9a9
SHA512

28f1bfb240e54f0a5292f111b24ad7d90cb6b0aa7ca7e5e3afb5ec7cdf78ef7b38e270f33cfeff5b2f679b7d656b2a61765794299a0ca88077ff903e5cecbafa

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

159.8.59.82:443

51.91.156.39:2303

67.196.50.240:8172

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
behavioral2/memory/496-115-0x0000000073AA0000-0x0000000073ACD000-memory.dmp	dridex_ldr

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

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 3992 wrote to memory of 496	3992	rundll32.exe	rundll32.exe
PID 3992 wrote to memory of 496	3992	rundll32.exe	rundll32.exe
PID 3992 wrote to memory of 496	3992	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b89691e56e5c1b62188b43e0507613bc7164771320cd99b46449b947442d9a9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3992

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b89691e56e5c1b62188b43e0507613bc7164771320cd99b46449b947442d9a9.dll,#1
2⤵
- Checks whether UAC is enabled
PID:496

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/496-114-0x0000000000000000-mapping.dmp

Download
memory/496-115-0x0000000073AA0000-0x0000000073ACD000-memory.dmp

Filesize
180KB

Download
memory/496-117-0x0000000002BB0000-0x0000000002BB6000-memory.dmp

Filesize
24KB

Download