Analysis
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max time kernel
145s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
15-10-2024 00:19
Static task
static1
Behavioral task
behavioral1
Sample
9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe
Resource
win7-20240903-en
General
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Target
9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe
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Size
9.2MB
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MD5
678e3ffbb85b7fea9f671d3223e6d360
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SHA1
0a6895a902dbc2e5189cdac7f87d4f1b33a496d6
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SHA256
9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982
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SHA512
19bdf511b7189eba50962973048688406224a368261aae897fa2a9fcf2f63b5294ea2315de02455c2ff381e7b829cab0c0e363a65c16e0ecd9c4bccddbb99bb0
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SSDEEP
196608:RNbjuEPa/rnIVl3n403gwmPULMYJwEULY6fbXTU:fPuYUzg340tXd6bg
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/2780-31-0x0000000069CC0000-0x000000006A377000-memory.dmp family_cryptbot_v3 -
Executes dropped EXE 5 IoCs
pid Process 2760 VC_redist.x64.exe 2780 VC_redist.x86.exe 2188 service123.exe 2224 service123.exe 1620 service123.exe -
Loads dropped DLL 13 IoCs
pid Process 3044 9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe 3044 9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe 3044 9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe 3044 9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe 3044 9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe 3044 9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe 3044 9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe 3044 9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe 2780 VC_redist.x86.exe 2780 VC_redist.x86.exe 2188 service123.exe 2224 service123.exe 1620 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 4 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 9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language VC_redist.x64.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language VC_redist.x86.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 VC_redist.x86.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString VC_redist.x86.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 1500 schtasks.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 3044 wrote to memory of 2760 3044 9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe 30 PID 3044 wrote to memory of 2760 3044 9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe 30 PID 3044 wrote to memory of 2760 3044 9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe 30 PID 3044 wrote to memory of 2760 3044 9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe 30 PID 3044 wrote to memory of 2780 3044 9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe 31 PID 3044 wrote to memory of 2780 3044 9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe 31 PID 3044 wrote to memory of 2780 3044 9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe 31 PID 3044 wrote to memory of 2780 3044 9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe 31 PID 2780 wrote to memory of 2188 2780 VC_redist.x86.exe 32 PID 2780 wrote to memory of 2188 2780 VC_redist.x86.exe 32 PID 2780 wrote to memory of 2188 2780 VC_redist.x86.exe 32 PID 2780 wrote to memory of 2188 2780 VC_redist.x86.exe 32 PID 2780 wrote to memory of 1500 2780 VC_redist.x86.exe 33 PID 2780 wrote to memory of 1500 2780 VC_redist.x86.exe 33 PID 2780 wrote to memory of 1500 2780 VC_redist.x86.exe 33 PID 2780 wrote to memory of 1500 2780 VC_redist.x86.exe 33 PID 1212 wrote to memory of 2224 1212 taskeng.exe 36 PID 1212 wrote to memory of 2224 1212 taskeng.exe 36 PID 1212 wrote to memory of 2224 1212 taskeng.exe 36 PID 1212 wrote to memory of 2224 1212 taskeng.exe 36 PID 1212 wrote to memory of 1620 1212 taskeng.exe 38 PID 1212 wrote to memory of 1620 1212 taskeng.exe 38 PID 1212 wrote to memory of 1620 1212 taskeng.exe 38 PID 1212 wrote to memory of 1620 1212 taskeng.exe 38
Processes
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C:\Users\Admin\AppData\Local\Temp\9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe"C:\Users\Admin\AppData\Local\Temp\9f6d7bdffe74d66aa89decac533141268ba832a2f34c2beee562bb78f4744982.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3044 -
C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x64.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x64.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2760
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C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2780 -
C:\Users\Admin\AppData\Local\Temp\service123.exe"C:\Users\Admin\AppData\Local\Temp\service123.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2188
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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 /f3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1500
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C:\Windows\system32\taskeng.exetaskeng.exe {611BDB41-E6F3-4406-A2C5-F9B7CCDC4BEA} S-1-5-21-2872745919-2748461613-2989606286-1000:CCJBVTGQ\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:1212 -
C:\Users\Admin\AppData\Local\Temp\service123.exeC:\Users\Admin\AppData\Local\Temp\/service123.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2224
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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:1620
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
24.3MB
MD5d3107995db5c128ad78b0e80ee539af5
SHA1e46f9273b5148834a5a30a4a94449cf0a87d8d20
SHA256215f6f5f337b4f0ca96c928ccf11824147c6cd84f937d69d614a229235dca5fa
SHA5125f42503e08cbb005aa6cc901bae83e170ddacda79736c538a60b21bec649018cee919b1cc8d795a5d6c8210ad98be8dc1c0b287409b369688471bc743cde0a4d
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Filesize
7.2MB
MD552cca4535026d44d04230373590f57fa
SHA110c8b3e51a71d8adca731b985c34163a320b32c4
SHA256ac35fc427952d4a283f69a51c9a166e61bc72072177f6aabbee5a62fe9ece2a0
SHA51254233882c2a8e7ed26d649527739ff28be185e8b0f62e66addef28a1638a0ced3614cb2d86a7691bf32f985541cd8674644b128e135f6bf7d5258a55c1336c41