ff3f040c5624b687c91eefce1d6774fe525b7e5bfac500dc5a9ca56b98b949a6

Analysis

max time kernel
145s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2024 18:32

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General

Target

ff3f040c5624b687c91eefce1d6774fe525b7e5bfac500dc5a9ca56b98b949a6.dll
Size

1.1MB
MD5

564e6bb934c56992bc63d0a6562ced05
SHA1

a5f4029f4d799bb69874fd2bc084a8f004fa29a0
SHA256

ff3f040c5624b687c91eefce1d6774fe525b7e5bfac500dc5a9ca56b98b949a6
SHA512

e7c324068f988583f5f2299b9069baa384a0f4d770849e587e591e522486a56afe5f93d5a77d685d381e98729d1dca28c2c65f9c74e484d178db0c8570d72eac
SSDEEP

24576:V2mj42MEVQPGEorkSYVyC7DkbSrh/qtoT/cgB8SnLZrEH7SV:xjnMEVQuFkSzCvkurNqtoTkgCSnn

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

Processes:

resource	yara_rule
C:\Program Files\Common Files\System\symsrv.dll	acprotect

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

1472 rundll32.exe

pid	process
1472	rundll32.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Program Files\Common Files\System\symsrv.dll	upx
behavioral2/memory/1472-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/1472-8-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File created C:\Program Files\Common Files\System\symsrv.dll rundll32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 1472 rundll32.exe

description	ioc	process
File created	C:\Program Files\Common Files\System\symsrv.dll	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	1472	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3120 wrote to memory of 1472	3120	rundll32.exe	rundll32.exe
PID 3120 wrote to memory of 1472	3120	rundll32.exe	rundll32.exe
PID 3120 wrote to memory of 1472	3120	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ff3f040c5624b687c91eefce1d6774fe525b7e5bfac500dc5a9ca56b98b949a6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3120

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ff3f040c5624b687c91eefce1d6774fe525b7e5bfac500dc5a9ca56b98b949a6.dll,#1
2⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
PID:1472

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

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Downloads

C:\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/1472-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1472-5-0x00000000756F0000-0x00000000757F6000-memory.dmp

Filesize
1.0MB

Download
memory/1472-7-0x00000000756F0000-0x00000000757F6000-memory.dmp

Filesize
1.0MB

Download
memory/1472-8-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1472-9-0x00000000756F0000-0x00000000757F6000-memory.dmp

Filesize
1.0MB

Download
memory/1472-10-0x00000000756F0000-0x00000000757F6000-memory.dmp

Filesize
1.0MB

Download