31e95e72229568a86e1ecb78a667befdc880599d53b460311f9913c9662f6ff6

Resubmissions

27/10/2026, 18:06

261027-wprzjae14z8

27/10/2026, 18:02

261027-wmew7awses8

27/10/2026, 18:00

261027-wljhzse12x8

Analysis

max time kernel
119s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
27/10/2026, 18:02

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General

Target
zeroscript_connect/libcurl.dll
Size 15.3MB
Sample261027-wmew7awses
SHA256 31e95e72229568a86e1ecb78a667befdc880599d53b460311f9913c9662f6ff6
MD5 c62c0975ac885892205ba181e05d817b
SHA1 f364bf781f91986f3022abf2397fc5641dafd0ac
SHA512 0ed658ce8ebeb7ee019c707e44a464766b537af3118e366db165c67552dd77bf22b902e2f2fe1765cf2fcb107bc948504164cd724bf1637f6f0073c36104e579
SSDEEP 98304:d70XoGBWgGbYFTim8I1uesJ9VWL65yVlfH+wM:d7u+bYFmI1uf/MBLG5
TLSH
T184F6AAA9101F5D70DE2246B3DEA7009753F22CCB88AC5C7119999A705DEF46D2A323BF
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
1596	powershell.exe
5068	powershell.exe
1596	powershell.exe
5068	powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
1556	zFAUIpENBTRIkTU.exe

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	zFAUIpENBTRIkTU.exe

Executes a command shell one-liner 1 TTPs 1 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
4880	cmd.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1596	powershell.exe
1596	powershell.exe
5068	powershell.exe
5068	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1596	powershell.exe
Token: SeDebugPrivilege	5068	powershell.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2544 wrote to memory of 1596	2544	rundll32.exe	83
PID 2544 wrote to memory of 5068	2544	rundll32.exe	85
PID 2544 wrote to memory of 4880	2544	rundll32.exe	87
PID 4880 wrote to memory of 3888	4880	cmd.exe	89
PID 2544 wrote to memory of 1556	2544	rundll32.exe	97

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\zeroscript_connect\libcurl.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2544
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath $env:TEMP"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1596
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath 'C:\ProgramData','C:\ProgramData\Windows\Microsoft','C:\ProgramData\Microsoft\Windows'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5068
- C:\Windows\system32\cmd.exe
  cmd.exe /C gpupdate /force
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:4880
- - C:\Windows\system32\gpupdate.exe
    gpupdate /force
    3⤵
    PID:3888
- C:\Users\Admin\AppData\Local\Temp\zFAUIpENBTRIkTU.exe
  "C:\Users\Admin\AppData\Local\Temp\zFAUIpENBTRIkTU.exe"
  2⤵
  - Executes dropped EXE
  - Checks for VirtualBox DLLs, possible anti-VM trick
  PID:1556

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Windows Command Shell

T1059.003

Persistence

Privilege Escalation

Defense Evasion

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 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
TLSH
T1CE51EE323375B1E888167F071E681A8053BF4355EA94AF1CB698621ED93641B9F222F3
MD5 SHA1 SHA512 TLSH

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 6aa59e171898b3dd42a36662ef81d349ce5063a705f1261e881269c59e7c742b
MD5 737aca23f199ce589dd1e68bc4969b98
SHA1 8c9cdd6bdf94c5fa42c5b0c29abf0136e4e6fa00
SHA512 ccc0e6fa798aeb92e6e1a14d6ef3dc23e8e829d5ffd10f11129d0e590820711e29997a761dca77b8e790b06e3c7c0d2059137f40f92543eb8048529b1b4d7817
TLSH
T104112223F38C8920CC96163A509DAC6172B586CB81EEDF9F7FC0C210A1BF584CB61294
MD5 SHA1 SHA512 TLSH

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__PSScriptPolicyTest_w1zogjr0.5ju.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_w1zogjr0.5ju.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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zFAUIpENBTRIkTU.exe

Path C:\Users\Admin\AppData\Local\Temp\zFAUIpENBTRIkTU.exe
Size 632KB
SHA256 5870bc9c80bebd488fb179af515e76e6079c7fcc7e22a865ce30b27b5f54eaf0
MD5 b1b82e240019e394c1a1ca7a9526ed1b
SHA1 786b65a35952e580cdda4e8b4bfc5ec84999f200
SHA512 0691f1a9a62044c3264bfff48791139529c13887e684e5b88beaefbe397ca6a1a2ee88447ef4b717297b707a0d31d2214e9963a3a8d5cd2962bb3af31a8d3ceb
SSDEEP 6144:TQyUaj92ddMo4rBuW9I+opMpUPAR/zextNPale+aaeLIBkBBD1wI0/pz1NdL8Fjn:TQvacavT9I+cC7ONJEzuA
TLSH
T140D4D7A6E6D319CAEE53C03DAC0AD207A4BC7E800554E533E549AE11B9647B78BDC70F
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1596-1-0x0000018C54950000-0x0000018C54960000-memory.dmp

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memory/1596-0-0x0000018C54950000-0x0000018C54960000-memory.dmp

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memory/1596-7-0x0000018C6CC20000-0x0000018C6CC42000-memory.dmp

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memory/5068-13-0x0000029178A80000-0x0000029178A90000-memory.dmp

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