Analysis
-
max time kernel
151s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
01-10-2022 19:51
Static task
static1
Behavioral task
behavioral1
Sample
a87fa6e062c3c2dd9e21f17ea5f281785bd346b725cf010e0746cd86fe581ee2.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a87fa6e062c3c2dd9e21f17ea5f281785bd346b725cf010e0746cd86fe581ee2.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
-
Target
a87fa6e062c3c2dd9e21f17ea5f281785bd346b725cf010e0746cd86fe581ee2.exe
-
Size
84KB
-
MD5
6101fda3b80146753f1c7c5abbd36d17
-
SHA1
31f20990a690236ff77fd8461c611ef6db30d969
-
SHA256
a87fa6e062c3c2dd9e21f17ea5f281785bd346b725cf010e0746cd86fe581ee2
-
SHA512
09fa993c33694a87a1bf56998a2649f95ce0e362d8c568535d39147b24532cf11baeb701494046b3d4ffec9c835170025a017beb5a96074c7019a4e6bb86ae07
-
SSDEEP
768:9G9RIXmuec4OdJNUC1x2avPPpykILkGuIBLP3nEZCcLX/CVSFJ0T72Uap5/7TONO:9kZOdUCJwVu1ocTzFJ0T72VpF7
Score
10/10
Malware Config
Signatures
-
Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" a87fa6e062c3c2dd9e21f17ea5f281785bd346b725cf010e0746cd86fe581ee2.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" maeroih.exe -
Executes dropped EXE 1 IoCs
pid Process 4232 maeroih.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation a87fa6e062c3c2dd9e21f17ea5f281785bd346b725cf010e0746cd86fe581ee2.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /n" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /a" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /r" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /c" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /o" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /g" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /i" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /b" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /q" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /l" maeroih.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ a87fa6e062c3c2dd9e21f17ea5f281785bd346b725cf010e0746cd86fe581ee2.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /y" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /s" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /v" maeroih.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /f" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /t" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /d" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /t" a87fa6e062c3c2dd9e21f17ea5f281785bd346b725cf010e0746cd86fe581ee2.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /e" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /j" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /k" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /m" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /w" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /h" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /x" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /z" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /u" maeroih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\maeroih = "C:\\Users\\Admin\\maeroih.exe /p" maeroih.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2232 a87fa6e062c3c2dd9e21f17ea5f281785bd346b725cf010e0746cd86fe581ee2.exe 2232 a87fa6e062c3c2dd9e21f17ea5f281785bd346b725cf010e0746cd86fe581ee2.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe 4232 maeroih.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2232 a87fa6e062c3c2dd9e21f17ea5f281785bd346b725cf010e0746cd86fe581ee2.exe 4232 maeroih.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2232 wrote to memory of 4232 2232 a87fa6e062c3c2dd9e21f17ea5f281785bd346b725cf010e0746cd86fe581ee2.exe 83 PID 2232 wrote to memory of 4232 2232 a87fa6e062c3c2dd9e21f17ea5f281785bd346b725cf010e0746cd86fe581ee2.exe 83 PID 2232 wrote to memory of 4232 2232 a87fa6e062c3c2dd9e21f17ea5f281785bd346b725cf010e0746cd86fe581ee2.exe 83
Processes
-
C:\Users\Admin\AppData\Local\Temp\a87fa6e062c3c2dd9e21f17ea5f281785bd346b725cf010e0746cd86fe581ee2.exe"C:\Users\Admin\AppData\Local\Temp\a87fa6e062c3c2dd9e21f17ea5f281785bd346b725cf010e0746cd86fe581ee2.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2232 -
C:\Users\Admin\maeroih.exe"C:\Users\Admin\maeroih.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4232
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
84KB
MD537c05df6313ef445782b96b4f50161c5
SHA1132718fab88b5b88d66e0dc7aa61d28f7774d5b4
SHA256d3a8d5d6f5021ddd24b1d9ca63aabb812f4b2778283b0f9cdc4bace7610ba420
SHA5125e0336505378227e83d90e0d708b69704977d87b90207c038678861f1ad05d2f7def8772bc90cdd73277ec8ae077c9340daddf464f568a02a0bdfb710750e3c9
-
Filesize
84KB
MD537c05df6313ef445782b96b4f50161c5
SHA1132718fab88b5b88d66e0dc7aa61d28f7774d5b4
SHA256d3a8d5d6f5021ddd24b1d9ca63aabb812f4b2778283b0f9cdc4bace7610ba420
SHA5125e0336505378227e83d90e0d708b69704977d87b90207c038678861f1ad05d2f7def8772bc90cdd73277ec8ae077c9340daddf464f568a02a0bdfb710750e3c9