a9a144934a945e5dfc13f4333e67d5b82b65463d43525e116df73e445f243891

Analysis

max time kernel
132s
max time network
107s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
07/05/2024, 16:38

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General

Target

de583ee141ae46f8bae202af87848fc0_NEAS.exe
Size

138KB
MD5

de583ee141ae46f8bae202af87848fc0
SHA1

a6df0a190c6fdb96d22647697945259ed6fe80b7
SHA256

a9a144934a945e5dfc13f4333e67d5b82b65463d43525e116df73e445f243891
SHA512

ad862df18bb6547ddb4e928b1ccdb06bf78e88f062e5207a1ccd79c01a426c43ad7f950c3ee5eba3c414b3a38b50f87f002a95b0b30af0d5c0e217f2324346ab
SSDEEP

1536:rC2/fYuPfbESFYXRWhpKRycRd57JkIqFHhzm4hWru/BzihhMN45MF5FvHP132xPT:r7YubEwYXRWhpAJUHhzm4hUukS6Kmech

Score

8^/10

evasion execution

Malware Config

Signatures

Stops running service(s) 4 TTPs
evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

Executes dropped EXE 1 IoCs

pid	Process
3084	smss.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\1230\smss.exe	de583ee141ae46f8bae202af87848fc0_NEAS.exe
File opened for modification	C:\Windows\SysWOW64\1230\smss.exe	smss.exe
File opened for modification	C:\Windows\SysWOW64\Service.exe	smss.exe

Launches sc.exe 4 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
4608	sc.exe
3360	sc.exe
4244	sc.exe
1228	sc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3916	de583ee141ae46f8bae202af87848fc0_NEAS.exe
3084	smss.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3916 wrote to memory of 4608	3916	de583ee141ae46f8bae202af87848fc0_NEAS.exe	84
PID 3916 wrote to memory of 4608	3916	de583ee141ae46f8bae202af87848fc0_NEAS.exe	84
PID 3916 wrote to memory of 4608	3916	de583ee141ae46f8bae202af87848fc0_NEAS.exe	84
PID 3916 wrote to memory of 3360	3916	de583ee141ae46f8bae202af87848fc0_NEAS.exe	86
PID 3916 wrote to memory of 3360	3916	de583ee141ae46f8bae202af87848fc0_NEAS.exe	86
PID 3916 wrote to memory of 3360	3916	de583ee141ae46f8bae202af87848fc0_NEAS.exe	86
PID 3916 wrote to memory of 3084	3916	de583ee141ae46f8bae202af87848fc0_NEAS.exe	87
PID 3916 wrote to memory of 3084	3916	de583ee141ae46f8bae202af87848fc0_NEAS.exe	87
PID 3916 wrote to memory of 3084	3916	de583ee141ae46f8bae202af87848fc0_NEAS.exe	87
PID 3084 wrote to memory of 4244	3084	smss.exe	89
PID 3084 wrote to memory of 4244	3084	smss.exe	89
PID 3084 wrote to memory of 4244	3084	smss.exe	89
PID 3084 wrote to memory of 1228	3084	smss.exe	91
PID 3084 wrote to memory of 1228	3084	smss.exe	91
PID 3084 wrote to memory of 1228	3084	smss.exe	91

C:\Users\Admin\AppData\Local\Temp\de583ee141ae46f8bae202af87848fc0_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\de583ee141ae46f8bae202af87848fc0_NEAS.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3916
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe stop SharedAccess
  2⤵
  - Launches sc.exe
  PID:4608
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe stop wscsvc
  2⤵
  - Launches sc.exe
  PID:3360
- C:\Windows\SysWOW64\1230\smss.exe
  C:\Windows\system32\1230\smss.exe -d
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3084
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe stop SharedAccess
    3⤵
    - Launches sc.exe
    PID:4244
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe stop wscsvc
    3⤵
    - Launches sc.exe
    PID:1228

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

T1489

Replay Monitor

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Downloads

C:\Windows\SysWOW64\1230\smss.exe

Filesize
138KB

MD5
458bdd04dd5464b40732fe01bd05de78

SHA1
096880e1ed4d1d313d48f678f76e352c81ba1b9d

SHA256
c328b9c191a5021f14b1eb45956793c4f2045b2a4e81a25a9191e1405327dc76

SHA512
912dd70550622450061bde5f593b89f0774df28fdb364cc38ee622619d43af88bee31b858c71cc3b0280f05a59d746c37bc175cc787709d9d87d2b94431a3db3

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