f8c053d3999fbffb5b11aa2a519f806f2ae31da0bf9804e2fd83bde721209c78

Analysis

max time kernel
91s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
21/10/2023, 21:30

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General

Target

NEAS.c17fbbe50ed30e90e0f8418e57165160.dll
Size

984KB
MD5

c17fbbe50ed30e90e0f8418e57165160
SHA1

db2ff8f838547a6c799a683ca6003f2eadfbbb2d
SHA256

f8c053d3999fbffb5b11aa2a519f806f2ae31da0bf9804e2fd83bde721209c78
SHA512

5c9bac73f4efc6ba109106b2ec80d23dc718944809e471322e61dc1460b3f84c419f228dca7fb9adfdca31349362a32a12bcd910b1e2cb5796b4d0ecb2441b4a
SSDEEP

24576:CRxNAQB7U0FwTuis6eCwjH+SW61zf/AF+KrEH7B:Ca+Myis/LjH+S31l

Score

7^/10

upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0007000000022e43-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2420	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2420-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/files/0x0007000000022e43-1.dat	upx
behavioral2/memory/2420-8-0x0000000010000000-0x0000000010030000-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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1848	2420	WerFault.exe	23

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2420	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 2420	2332	rundll32.exe	23
PID 2332 wrote to memory of 2420	2332	rundll32.exe	23
PID 2332 wrote to memory of 2420	2332	rundll32.exe	23

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.c17fbbe50ed30e90e0f8418e57165160.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.c17fbbe50ed30e90e0f8418e57165160.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:2420
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2420 -s 700
    3⤵
    - Program crash
    PID:1848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2420 -ip 2420
1⤵
PID:3576

Network

MITRE ATT&CK Matrix

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/2420-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2420-5-0x0000000061E00000-0x0000000061ECA000-memory.dmp

Filesize
808KB

Download
memory/2420-8-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download