802a161e3162aba753310c1c20c4a92d32f852f510dcb71c440a5d531fac23a7

Analysis

max time kernel
51s
max time network
55s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
13/06/2024, 06:39

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General

Target
802a161e3162aba753310c1c20c4a92d32f852f510dcb71c440a5d531fac23a7.dll
Size 124KB
Sample240613-hexkdasanj
SHA256 802a161e3162aba753310c1c20c4a92d32f852f510dcb71c440a5d531fac23a7
MD5 8c4d56ec75eee365674acb887844f159
SHA1 5cae54842f3fbb419a6281e3a7e477c73c38bbcb
SHA512 dcba92ed7ba4b687c22dd788a83fe6406295967b4b0c9c38d81e64e5c9edd519241b8dc307c0a337c6e9210fc13f7e6be7c40b49c9a2dfe49ff8b1219292a37e
SSDEEP 3072:p7TwePYOtdN3MeF3pi762lQBV+UdE+rECWp7hKXpC:lTTYOtd1hfzBV+UdvrEFp7hKXpC
MD5 SHA1 SHA512 SSDEEP

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.

resource	yara_rule
behavioral2/files/0x00090000000233ea-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4308	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x00090000000233ea-1.dat	upx
behavioral2/memory/4308-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4308-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4308	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1044 wrote to memory of 4308	1044	rundll32.exe	83
PID 1044 wrote to memory of 4308	1044	rundll32.exe	83
PID 1044 wrote to memory of 4308	1044	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\802a161e3162aba753310c1c20c4a92d32f852f510dcb71c440a5d531fac23a7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1044
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\802a161e3162aba753310c1c20c4a92d32f852f510dcb71c440a5d531fac23a7.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:4308

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

symsrv.dll

Path C:\Program Files\Common Files\System\symsrv.dll
Size 67KB
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZL:c8y93KQjy7G55riF1cMo03V
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/4308-4-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/4308-7-0x0000000010000000-0x0000000010030000-memory.dmp