Analysis
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max time kernel
141s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
11-10-2024 20:18
Static task
static1
Behavioral task
behavioral1
Sample
Set-up.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Set-up.exe
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
Set-up.exe
Resource
win10v2004-20241007-en
General
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Target
Set-up.exe
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Size
6.4MB
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MD5
bd86c7f8fa17c9a08f0ed2e829255c62
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SHA1
b9586ca88021f12e8b0c285ab7a611457fb48052
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SHA256
14071621305caf3017b55255d6759ef0cbf22a811be2a490e31b6d5aca3c9964
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SHA512
eb3bd3bfa159c073a83a30762515cbdd68b45b4adcfc451cdf53dbe46134df9c72e37861be104c76c834e574b531868d44481ab995dd348049343159c1abe93b
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SSDEEP
49152:BWMI99KO7fvk1ncesDU2pOI/s6GGAbd7NttdiVPk0/MVTcmVFqSiqL7EI4ohxBtY:BWTxk1nvQU2sss6pAR7jtdekVd
Malware Config
Signatures
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Detects CryptBot payload 1 IoCs
CryptBot is a C++ stealer distributed widely in bundle with other software.
resource yara_rule behavioral1/memory/2440-0-0x0000000069CC0000-0x000000006A377000-memory.dmp family_cryptbot_v3 -
Executes dropped EXE 3 IoCs
pid Process 2664 service123.exe 2508 service123.exe 2240 service123.exe -
Loads dropped DLL 5 IoCs
pid Process 2440 Set-up.exe 2440 Set-up.exe 2664 service123.exe 2508 service123.exe 2240 service123.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Set-up.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 Set-up.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString Set-up.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3012 schtasks.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 2440 wrote to memory of 2664 2440 Set-up.exe 30 PID 2440 wrote to memory of 2664 2440 Set-up.exe 30 PID 2440 wrote to memory of 2664 2440 Set-up.exe 30 PID 2440 wrote to memory of 2664 2440 Set-up.exe 30 PID 2440 wrote to memory of 3012 2440 Set-up.exe 31 PID 2440 wrote to memory of 3012 2440 Set-up.exe 31 PID 2440 wrote to memory of 3012 2440 Set-up.exe 31 PID 2440 wrote to memory of 3012 2440 Set-up.exe 31 PID 2252 wrote to memory of 2508 2252 taskeng.exe 34 PID 2252 wrote to memory of 2508 2252 taskeng.exe 34 PID 2252 wrote to memory of 2508 2252 taskeng.exe 34 PID 2252 wrote to memory of 2508 2252 taskeng.exe 34 PID 2252 wrote to memory of 2240 2252 taskeng.exe 35 PID 2252 wrote to memory of 2240 2252 taskeng.exe 35 PID 2252 wrote to memory of 2240 2252 taskeng.exe 35 PID 2252 wrote to memory of 2240 2252 taskeng.exe 35
Processes
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C:\Users\Admin\AppData\Local\Temp\Set-up.exe"C:\Users\Admin\AppData\Local\Temp\Set-up.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2440 -
C:\Users\Admin\AppData\Local\Temp\service123.exe"C:\Users\Admin\AppData\Local\Temp\service123.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2664
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /tn "ServiceData4" /tr "C:\Users\Admin\AppData\Local\Temp\/service123.exe" /st 00:01 /du 9800:59 /sc once /ri 1 /f2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3012
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C:\Windows\system32\taskeng.exetaskeng.exe {7296637B-ABA5-42CA-AC7B-564632E9A77D} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:2252 -
C:\Users\Admin\AppData\Local\Temp\service123.exeC:\Users\Admin\AppData\Local\Temp\/service123.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2508
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C:\Users\Admin\AppData\Local\Temp\service123.exeC:\Users\Admin\AppData\Local\Temp\/service123.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2240
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