Analysis
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max time kernel
146s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
21-10-2024 13:25
Static task
static1
Behavioral task
behavioral1
Sample
8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe
Resource
win7-20240903-en
General
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Target
8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe
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Size
6.3MB
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MD5
bfe2f72aaf59ad12fe5479d4936d9d52
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SHA1
1eb38144e825af65babd0f1e5651f74123413c93
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SHA256
8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a
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SHA512
e1e070feec3cc1ef4506976d6c839564f9a2487fbdfeb77c29027c3c0634f8990f3e48aba0560030e8f823ee48ca2055f16256d1d87e68b565dd8bbfcc4bdba7
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SSDEEP
49152:YxnRxBWUDgOXOVviT4teSK+T/8zkSJUosljJs0Rr4IwEZJumWu/Po8MIBZO+LnX9:C7k0uKT4teSxb8zxGH1JsY
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/2232-0-0x0000000069CC0000-0x000000006A37B000-memory.dmp family_cryptbot_v3 -
Executes dropped EXE 3 IoCs
pid Process 2840 service123.exe 2324 service123.exe 1092 service123.exe -
Loads dropped DLL 5 IoCs
pid Process 2232 8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe 2232 8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe 2840 service123.exe 2324 service123.exe 1092 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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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.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 8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.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 2356 schtasks.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 2232 wrote to memory of 2840 2232 8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe 31 PID 2232 wrote to memory of 2840 2232 8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe 31 PID 2232 wrote to memory of 2840 2232 8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe 31 PID 2232 wrote to memory of 2840 2232 8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe 31 PID 2232 wrote to memory of 2356 2232 8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe 32 PID 2232 wrote to memory of 2356 2232 8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe 32 PID 2232 wrote to memory of 2356 2232 8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe 32 PID 2232 wrote to memory of 2356 2232 8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe 32 PID 1508 wrote to memory of 2324 1508 taskeng.exe 35 PID 1508 wrote to memory of 2324 1508 taskeng.exe 35 PID 1508 wrote to memory of 2324 1508 taskeng.exe 35 PID 1508 wrote to memory of 2324 1508 taskeng.exe 35 PID 1508 wrote to memory of 1092 1508 taskeng.exe 36 PID 1508 wrote to memory of 1092 1508 taskeng.exe 36 PID 1508 wrote to memory of 1092 1508 taskeng.exe 36 PID 1508 wrote to memory of 1092 1508 taskeng.exe 36
Processes
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C:\Users\Admin\AppData\Local\Temp\8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe"C:\Users\Admin\AppData\Local\Temp\8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2232 -
C:\Users\Admin\AppData\Local\Temp\service123.exe"C:\Users\Admin\AppData\Local\Temp\service123.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2840
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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:2356
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C:\Windows\system32\taskeng.exetaskeng.exe {B7E254FF-6907-4202-ADDC-DF28AF63AC7F} S-1-5-21-3533259084-2542256011-65585152-1000:XPAJOTIY\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:1508 -
C:\Users\Admin\AppData\Local\Temp\service123.exeC:\Users\Admin\AppData\Local\Temp\/service123.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2324
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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:1092
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