Analysis
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max time kernel
89s -
max time network
93s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
19-04-2024 08:55
Static task
static1
Behavioral task
behavioral1
Sample
UMMAN İHRACAT AFR5641 910-1714 1633.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
UMMAN İHRACAT AFR5641 910-1714 1633.exe
Resource
win10v2004-20240412-en
Behavioral task
behavioral3
Sample
Vitaminerne/Taksonomiske24/Trephining/Piloters/Recepternes.ps1
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
Vitaminerne/Taksonomiske24/Trephining/Piloters/Recepternes.ps1
Resource
win10v2004-20240412-en
Errors
General
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Target
UMMAN İHRACAT AFR5641 910-1714 1633.exe
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Size
503KB
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MD5
bf56c567703447c78773f3e581a004db
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SHA1
80ec3b7f7b5f7e2df367dff512b508a21c682111
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SHA256
01beeda976d48dc4c029032b0113fed68e00a2736cc03667c065f7bf7440eec2
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SHA512
b67e817ab691ab8257826b5a90fb7731801765b5e1299f1ee5235aa36065d082a04ca276c735eea0480a5e27382047b488227bd4e887a4176639cd64fd4c2f5b
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SSDEEP
12288:fzA/ggggjlFZKqUVReLAu8xzRCf8CzQXX:U/ggggjHZbU5Po0CcXX
Malware Config
Signatures
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Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3198953144-1466794930-246379610-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Startup key = "%Paaskelrdag% -windowstyle minimized $Sisies=(Get-ItemProperty -Path 'HKCU:\\Jomfruburenes192\\').Minnesingers;%Paaskelrdag% ($Sisies)" reg.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
pid Process 1916 wab.exe 1916 wab.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 2940 powershell.exe 1916 wab.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2940 set thread context of 1916 2940 powershell.exe 99 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry key 1 TTPs 1 IoCs
pid Process 2416 reg.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 2940 powershell.exe 2940 powershell.exe 2940 powershell.exe 2940 powershell.exe 2940 powershell.exe 2940 powershell.exe 2940 powershell.exe 2940 powershell.exe 2940 powershell.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2940 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2940 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1916 wab.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 1944 wrote to memory of 2940 1944 UMMAN İHRACAT AFR5641 910-1714 1633.exe 87 PID 1944 wrote to memory of 2940 1944 UMMAN İHRACAT AFR5641 910-1714 1633.exe 87 PID 1944 wrote to memory of 2940 1944 UMMAN İHRACAT AFR5641 910-1714 1633.exe 87 PID 2940 wrote to memory of 5084 2940 powershell.exe 94 PID 2940 wrote to memory of 5084 2940 powershell.exe 94 PID 2940 wrote to memory of 5084 2940 powershell.exe 94 PID 2940 wrote to memory of 1916 2940 powershell.exe 99 PID 2940 wrote to memory of 1916 2940 powershell.exe 99 PID 2940 wrote to memory of 1916 2940 powershell.exe 99 PID 2940 wrote to memory of 1916 2940 powershell.exe 99 PID 2940 wrote to memory of 1916 2940 powershell.exe 99 PID 1916 wrote to memory of 4948 1916 wab.exe 100 PID 1916 wrote to memory of 4948 1916 wab.exe 100 PID 1916 wrote to memory of 4948 1916 wab.exe 100 PID 4948 wrote to memory of 2416 4948 cmd.exe 102 PID 4948 wrote to memory of 2416 4948 cmd.exe 102 PID 4948 wrote to memory of 2416 4948 cmd.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\UMMAN İHRACAT AFR5641 910-1714 1633.exe"C:\Users\Admin\AppData\Local\Temp\UMMAN İHRACAT AFR5641 910-1714 1633.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1944 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" -windowstyle hidden "$Escrow=Get-Content 'C:\Users\Admin\AppData\Roaming\skabiose\slgtsarvens\prender\Vitaminerne\Taksonomiske24\Trephining\Piloters\Recepternes.pen';$Unreverberating=$Escrow.SubString(58974,3);.$Unreverberating($Escrow)"2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2940 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c "set /A 1^^0"3⤵PID:5084
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C:\Program Files (x86)\windows mail\wab.exe"C:\Program Files (x86)\windows mail\wab.exe"3⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1916 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Startup key" /t REG_EXPAND_SZ /d "%Paaskelrdag% -windowstyle minimized $Sisies=(Get-ItemProperty -Path 'HKCU:\Jomfruburenes192\').Minnesingers;%Paaskelrdag% ($Sisies)"4⤵
- Suspicious use of WriteProcessMemory
PID:4948 -
C:\Windows\SysWOW64\reg.exeREG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Startup key" /t REG_EXPAND_SZ /d "%Paaskelrdag% -windowstyle minimized $Sisies=(Get-ItemProperty -Path 'HKCU:\Jomfruburenes192\').Minnesingers;%Paaskelrdag% ($Sisies)"5⤵
- Adds Run key to start application
- Modifies registry key
PID:2416
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
302KB
MD516c2e56de9c7bea98d12e66613e04e83
SHA1f69245121a7b6a309f94c4dea5d765e90200c5f2
SHA2562d7e6c0e1bcf0f9f4db98c9cc7576cb87017f3defdff31f5c83d3eb414e56e92
SHA5120c04b63973824e5f0403f99120dd250c316483fc13b689d428a979d52ebabeceeaa81751e0aed5e83a8c1aedfb11990b2a38f9b84a82d7342d93b20b49901824
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C:\Users\Admin\AppData\Roaming\skabiose\slgtsarvens\prender\Vitaminerne\Taksonomiske24\Trephining\Piloters\Recepternes.pen
Filesize57KB
MD524e44ec408c4fb8b429adb0ee5869985
SHA11913f35995281fec0c9f586fd73d6a2f4e64a5ca
SHA256cf1db414b602f31a34655222809a3542f96a8ffcf0e43dfdbc341192f8298f71
SHA51276b152a80b4f9537c1cd3fb6209021040946c0e7c75fe907f9b95e9f4446b2f12ef54be9721de7b13929df0e1d555db38f470d43f9142b4c1b87e74768819425