39e7c393eb5a80fcf040278db43dd84e9b21b7f2edbec800b5433f9b813b1aaf

Analysis

max time kernel
189s
max time network
190s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
14/10/2023, 17:49

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General

Target

NEAS.2b2480b872fc1188156f518e90f7c110.dll
Size

408KB
MD5

2b2480b872fc1188156f518e90f7c110
SHA1

8af455d41302c712d042d2d225ca4e1953d9f4c5
SHA256

39e7c393eb5a80fcf040278db43dd84e9b21b7f2edbec800b5433f9b813b1aaf
SHA512

3ca7479b7c7f65d0ba49a4b07d1486cdd3a5e7954f07c09c9dd959fc37acff0b360f9f34589385796bd74fd3adc9fff0b4357fdadd47e3480674d1a1d27da51d
SSDEEP

6144:BGvOeBzbOoGGwf/O4loAGSfOmKVWPXPcXIgBV+UdvrEFp7hKMkB:BGvOqUf/O4loAokgBjvrEH7+B

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 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000300000000fefe-1.dat	acprotect
behavioral1/files/0x000300000000fefe-7.dat	acprotect

Loads dropped DLL 2 IoCs

pid	Process
2928	rundll32.exe
2772	WerFault.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2928-3-0x0000000000210000-0x0000000000240000-memory.dmp	upx
behavioral1/files/0x000300000000fefe-1.dat	upx
behavioral1/files/0x000300000000fefe-7.dat	upx
behavioral1/memory/2928-8-0x0000000000210000-0x0000000000240000-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
2772	2928	WerFault.exe	23

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2928	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2744 wrote to memory of 2928	2744	rundll32.exe	23
PID 2744 wrote to memory of 2928	2744	rundll32.exe	23
PID 2744 wrote to memory of 2928	2744	rundll32.exe	23
PID 2744 wrote to memory of 2928	2744	rundll32.exe	23
PID 2744 wrote to memory of 2928	2744	rundll32.exe	23
PID 2744 wrote to memory of 2928	2744	rundll32.exe	23
PID 2744 wrote to memory of 2928	2744	rundll32.exe	23
PID 2928 wrote to memory of 2772	2928	rundll32.exe	30
PID 2928 wrote to memory of 2772	2928	rundll32.exe	30
PID 2928 wrote to memory of 2772	2928	rundll32.exe	30
PID 2928 wrote to memory of 2772	2928	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2b2480b872fc1188156f518e90f7c110.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2744
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.2b2480b872fc1188156f518e90f7c110.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2928
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 320
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2772

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

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/2928-3-0x0000000000210000-0x0000000000240000-memory.dmp

Filesize
192KB

Download
memory/2928-4-0x0000000010000000-0x0000000010054000-memory.dmp

Filesize
336KB

Download
memory/2928-5-0x0000000010000000-0x0000000010054000-memory.dmp

Filesize
336KB

Download
memory/2928-8-0x0000000000210000-0x0000000000240000-memory.dmp

Filesize
192KB

Download