d9ebb4f37c6268491de2faa6dc54c661c567fcb9a6204599cb15df6f896b5389

Analysis

max time kernel
126s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 13:12

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3774fe75c4c2523d3783250225f1a7e9.dll
Size

17KB
MD5

3774fe75c4c2523d3783250225f1a7e9
SHA1

405e256b77fb7ad0341a7ba3b58fbccd96f1afaa
SHA256

d9ebb4f37c6268491de2faa6dc54c661c567fcb9a6204599cb15df6f896b5389
SHA512

220a4c1142966baea44ec1c9c647fe53fc980b67df09cd3dc28be8f8992a90425f0aa4f9524167900cd06dc94762ceaa6ae88a2398bc067e03ba669cdb307c87
SSDEEP

384:07816G9cjfmfFiQslw2+4E/f7tBvsPbnFw:0gh9uGFiRlR2/f7t1sPbn

Score

8^/10

persistence

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Drivers\CelInDriver.sys	rundll32.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\CelInDrv\ImagePath = "\\??\\C:\\Windows\\system32\\Drivers\\CelInDriver.sys"	rundll32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\windds32.dll	rundll32.exe
File created	C:\Windows\SysWOW64\windds32.dll	rundll32.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1840	rundll32.exe
1840	rundll32.exe
1840	rundll32.exe
1840	rundll32.exe
1840	rundll32.exe
1840	rundll32.exe
1840	rundll32.exe
1840	rundll32.exe
1840	rundll32.exe
1840	rundll32.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1840	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1840	rundll32.exe
Token: SeDebugPrivilege	1840	rundll32.exe
Token: SeDebugPrivilege	1840	rundll32.exe
Token: SeLoadDriverPrivilege	1840	rundll32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1132 wrote to memory of 1840	1132	rundll32.exe	14
PID 1132 wrote to memory of 1840	1132	rundll32.exe	14
PID 1132 wrote to memory of 1840	1132	rundll32.exe	14
PID 1840 wrote to memory of 3452	1840	rundll32.exe	44

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3774fe75c4c2523d3783250225f1a7e9.dll,#1
1⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1840

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3774fe75c4c2523d3783250225f1a7e9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1132

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3452

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1840-0-0x0000000010000000-0x000000001000C000-memory.dmp

Filesize
48KB

Download
memory/1840-1-0x0000000000A00000-0x0000000000A01000-memory.dmp

Filesize
4KB

Download