a255a2542ead397a83b07e0dbe9a8de66ce1fe08d2e7eacc02da821e408886e0

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07/05/2024, 15:26

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General

Target

ca67c61618ea7af894952a2ce97dc580_NEAS.exe
Size

134KB
MD5

ca67c61618ea7af894952a2ce97dc580
SHA1

9a630e7ae99d0377b8bdb7942b6e1b51482565d6
SHA256

a255a2542ead397a83b07e0dbe9a8de66ce1fe08d2e7eacc02da821e408886e0
SHA512

9c5bb57f26725306811b1b377592d123b57fb70c7284ec91b9732e57bddf664ec43dcd160e28d14baa605e4f1bc95f62d702ce8915e1455e4071970bc6eec767
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOT:YfU/WF6QMauSuiWNi9eNOl0007NZIOT

Score

7^/10

persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2444	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2364	wuauclt.exe

Loads dropped DLL 1 IoCs

pid	Process
2864	ca67c61618ea7af894952a2ce97dc580_NEAS.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2864-0-0x00000000003F0000-0x0000000000418000-memory.dmp	upx
behavioral1/files/0x0037000000014708-2.dat	upx
behavioral1/memory/2864-6-0x00000000003F0000-0x0000000000418000-memory.dmp	upx
behavioral1/memory/2364-7-0x00000000003F0000-0x0000000000418000-memory.dmp	upx
behavioral1/memory/2864-8-0x00000000003F0000-0x0000000000418000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run"	ca67c61618ea7af894952a2ce97dc580_NEAS.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2864 wrote to memory of 2364	2864	ca67c61618ea7af894952a2ce97dc580_NEAS.exe	28
PID 2864 wrote to memory of 2364	2864	ca67c61618ea7af894952a2ce97dc580_NEAS.exe	28
PID 2864 wrote to memory of 2364	2864	ca67c61618ea7af894952a2ce97dc580_NEAS.exe	28
PID 2864 wrote to memory of 2364	2864	ca67c61618ea7af894952a2ce97dc580_NEAS.exe	28
PID 2864 wrote to memory of 2444	2864	ca67c61618ea7af894952a2ce97dc580_NEAS.exe	29
PID 2864 wrote to memory of 2444	2864	ca67c61618ea7af894952a2ce97dc580_NEAS.exe	29
PID 2864 wrote to memory of 2444	2864	ca67c61618ea7af894952a2ce97dc580_NEAS.exe	29
PID 2864 wrote to memory of 2444	2864	ca67c61618ea7af894952a2ce97dc580_NEAS.exe	29

C:\Users\Admin\AppData\Local\Temp\ca67c61618ea7af894952a2ce97dc580_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\ca67c61618ea7af894952a2ce97dc580_NEAS.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2864
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  PID:2364
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\ca67c61618ea7af894952a2ce97dc580_NEAS.exe" >> NUL
  2⤵
  - Deletes itself
  PID:2444

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\ProgramData\Update\wuauclt.exe

Filesize
134KB

MD5
4a13e3c261beece064139bdfc61d2844

SHA1
a6fa7251313aa15e09016ad6a2151fff64e5f572

SHA256
0c37d306946cf479b1fb0e8ff1fd69d46982b0ff0224a437fff03d3bbc5403cc

SHA512
8b8349f13c50183f45731d0a5ee6856da57bdfd20a4a65676e83fa142c7c91b62c53e6169192f4f2e6ead0e7990578a256f18619efa013cadb5920311bc86a1d

Download Submit
memory/2364-7-0x00000000003F0000-0x0000000000418000-memory.dmp

Filesize
160KB

Download
memory/2864-0-0x00000000003F0000-0x0000000000418000-memory.dmp

Filesize
160KB

Download
memory/2864-6-0x00000000003F0000-0x0000000000418000-memory.dmp

Filesize
160KB

Download
memory/2864-8-0x00000000003F0000-0x0000000000418000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads