dridex | 3b174d031502a6cbd9f660a76f2b0a6eec4241913ba959030f1d6f6947a82285

Analysis

max time kernel
133s
max time network
119s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31-12-2023 14:34

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General

Target

39fddcf4501cfd534f060cd829e875e1.dll
Size

1.5MB
MD5

39fddcf4501cfd534f060cd829e875e1
SHA1

febef1cab017686608c5e3e7d921029dd65ba63b
SHA256

3b174d031502a6cbd9f660a76f2b0a6eec4241913ba959030f1d6f6947a82285
SHA512

e66c55ab3a5f8e1d75da453fe528a44bcf5446e14243bdb46f0a7af225926fff880489260359b350639fab97bf45b5da59b90e02d0eba0a2c2da224f8831ae8e
SSDEEP

12288:9VI0W/TtlPLfJCm3WIYxJ9yK5IQ9PElOlidGAWilgm5Qq0nB6wtt4AenZ1:kfP7fWsK5z9A+WGAW+V5SB6Ct4bnb

Score

10^/10

dridex botnet evasion payload persistence trojan

Malware Config

Signatures

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

Dridex Shellcode 1 IoCs

Detects Dridex Payload shellcode injected in Explorer process.

botnet payload

resource	yara_rule
behavioral1/memory/1220-5-0x0000000002530000-0x0000000002531000-memory.dmp	dridex_stager_shellcode

Executes dropped EXE 3 IoCs

pid	Process
3040	EhStorAuthn.exe
1600	consent.exe
1940	recdisc.exe

Loads dropped DLL 7 IoCs

pid	Process
1220	Process not Found
3040	EhStorAuthn.exe
1220	Process not Found
1600	consent.exe
1220	Process not Found
1940	recdisc.exe
1220	Process not Found

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rtxtioiynm = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Libraries\\yfiKZx\\consent.exe"	Process not Found

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	EhStorAuthn.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	consent.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	recdisc.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2104	rundll32.exe
2104	rundll32.exe
2104	rundll32.exe
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found
1220	Process not Found

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1220 wrote to memory of 2660	1220	Process not Found	29
PID 1220 wrote to memory of 2660	1220	Process not Found	29
PID 1220 wrote to memory of 2660	1220	Process not Found	29
PID 1220 wrote to memory of 3040	1220	Process not Found	28
PID 1220 wrote to memory of 3040	1220	Process not Found	28
PID 1220 wrote to memory of 3040	1220	Process not Found	28
PID 1220 wrote to memory of 1696	1220	Process not Found	31
PID 1220 wrote to memory of 1696	1220	Process not Found	31
PID 1220 wrote to memory of 1696	1220	Process not Found	31
PID 1220 wrote to memory of 1600	1220	Process not Found	30
PID 1220 wrote to memory of 1600	1220	Process not Found	30
PID 1220 wrote to memory of 1600	1220	Process not Found	30
PID 1220 wrote to memory of 1976	1220	Process not Found	33
PID 1220 wrote to memory of 1976	1220	Process not Found	33
PID 1220 wrote to memory of 1976	1220	Process not Found	33
PID 1220 wrote to memory of 1940	1220	Process not Found	32
PID 1220 wrote to memory of 1940	1220	Process not Found	32
PID 1220 wrote to memory of 1940	1220	Process not Found	32

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\39fddcf4501cfd534f060cd829e875e1.dll,#1
1⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:2104

C:\Users\Admin\AppData\Local\7gmIQPPXV\EhStorAuthn.exe
C:\Users\Admin\AppData\Local\7gmIQPPXV\EhStorAuthn.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:3040

C:\Windows\system32\EhStorAuthn.exe
C:\Windows\system32\EhStorAuthn.exe
1⤵
PID:2660

C:\Users\Admin\AppData\Local\FH6W1mEK7\consent.exe
C:\Users\Admin\AppData\Local\FH6W1mEK7\consent.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1600

C:\Windows\system32\consent.exe
C:\Windows\system32\consent.exe
1⤵
PID:1696

C:\Users\Admin\AppData\Local\XYfl5\recdisc.exe
C:\Users\Admin\AppData\Local\XYfl5\recdisc.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1940

C:\Windows\system32\recdisc.exe
C:\Windows\system32\recdisc.exe
1⤵
PID:1976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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/1220-18-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-16-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-4-0x0000000077266000-0x0000000077267000-memory.dmp

Filesize
4KB

Download
memory/1220-15-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-22-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-32-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-40-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-44-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-45-0x0000000002510000-0x0000000002517000-memory.dmp

Filesize
28KB

Download
memory/1220-56-0x00000000774D0000-0x00000000774D2000-memory.dmp

Filesize
8KB

Download
memory/1220-53-0x0000000077371000-0x0000000077372000-memory.dmp

Filesize
4KB

Download
memory/1220-63-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-52-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-159-0x0000000077266000-0x0000000077267000-memory.dmp

Filesize
4KB

Download
memory/1220-5-0x0000000002530000-0x0000000002531000-memory.dmp

Filesize
4KB

Download
memory/1220-78-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-69-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-43-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-42-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-41-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-39-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-38-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-37-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-36-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-33-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-34-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-35-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-7-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-9-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-29-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-28-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-27-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-26-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-25-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-24-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-23-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-21-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-20-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-19-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-31-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-17-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-30-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-14-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-13-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-12-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-11-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1220-10-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/1940-131-0x0000000000100000-0x0000000000107000-memory.dmp

Filesize
28KB

Download
memory/2104-0-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/2104-8-0x0000000140000000-0x0000000140180000-memory.dmp

Filesize
1.5MB

Download
memory/2104-3-0x0000000000290000-0x0000000000297000-memory.dmp

Filesize
28KB

Download
memory/3040-84-0x0000000000180000-0x0000000000187000-memory.dmp

Filesize
28KB

Download
memory/3040-81-0x0000000140000000-0x0000000140181000-memory.dmp

Filesize
1.5MB

Download