a255a2542ead397a83b07e0dbe9a8de66ce1fe08d2e7eacc02da821e408886e0

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	ca67c61618ea7af894952a2ce97dc580_NEAS.exe

Executes dropped EXE 1 IoCs

pid	Process
1420	wuauclt.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/464-1-0x0000000000B90000-0x0000000000BB8000-memory.dmp	upx
behavioral2/files/0x0009000000023471-3.dat	upx
behavioral2/memory/1420-5-0x0000000000DD0000-0x0000000000DF8000-memory.dmp	upx
behavioral2/memory/1420-6-0x0000000000DD0000-0x0000000000DF8000-memory.dmp	upx
behavioral2/memory/464-7-0x0000000000B90000-0x0000000000BB8000-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 6 IoCs

description	pid	Process	procid_target
PID 464 wrote to memory of 1420	464	ca67c61618ea7af894952a2ce97dc580_NEAS.exe	83
PID 464 wrote to memory of 1420	464	ca67c61618ea7af894952a2ce97dc580_NEAS.exe	83
PID 464 wrote to memory of 1420	464	ca67c61618ea7af894952a2ce97dc580_NEAS.exe	83
PID 464 wrote to memory of 1524	464	ca67c61618ea7af894952a2ce97dc580_NEAS.exe	95
PID 464 wrote to memory of 1524	464	ca67c61618ea7af894952a2ce97dc580_NEAS.exe	95
PID 464 wrote to memory of 1524	464	ca67c61618ea7af894952a2ce97dc580_NEAS.exe	95

C:\Users\Admin\AppData\Local\Temp\ca67c61618ea7af894952a2ce97dc580_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\ca67c61618ea7af894952a2ce97dc580_NEAS.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:464
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  PID:1420
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\ca67c61618ea7af894952a2ce97dc580_NEAS.exe" >> NUL
  2⤵
  PID:1524

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Update\wuauclt.exe

Filesize
134KB

MD5
4208d974fe8ed9307b0e0ce25ba3a082

SHA1
630e94e50b0449365129cc4768630db5fe2cd4cf

SHA256
20700d500900b641fac36e4fff0af8598bda1311f3533305a1eef239ef8cfd2a

SHA512
60f04ef72bdf987198b513105942e8b3b20a050ce54a483f3780a55cc7d01afece50c312fd077601de913849f4a211985ebf0c4425e291fd0847121331b74dcd

Download Submit
memory/464-1-0x0000000000B90000-0x0000000000BB8000-memory.dmp

Filesize
160KB

Download
memory/464-7-0x0000000000B90000-0x0000000000BB8000-memory.dmp

Filesize
160KB

Download
memory/1420-5-0x0000000000DD0000-0x0000000000DF8000-memory.dmp

Filesize
160KB

Download
memory/1420-6-0x0000000000DD0000-0x0000000000DF8000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads