fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676

General

Target

fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe
Size

144KB
MD5

431e2972d1b24ce97e8a42a2481396af
SHA1

534dd3c9e03afbafb2198abb678774e682bf2647
SHA256

fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676
SHA512

b12088338806ee39b59cdc5e3d9f755e25ff904d387d3afa2894ca45a0b7037129e6ab3fc533743b7db1b37ee0ba66564fe4a3669beeda6847564c47260f718c
SSDEEP

1536:BLfFwyq9bH0xl+sVFd6Gg9leQX0dci0y/VeIo9HkSQOVz4ZkN/pUY:RfzqpHCLde0dVR/lo9EIVEZkNRUY

Score

10^/10

evasion persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exespoolsv.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe \"C:\\Users\\Admin\\AppData\\Roaming\\spoolsv.exe\""	fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe \"C:\\Users\\Admin\\AppData\\Roaming\\spoolsv.exe\""	spoolsv.exe

Executes dropped EXE 1 IoCs

Processes:

spoolsv.exe

pid process

1620 spoolsv.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1960 netsh.exe

pid	process
1620	spoolsv.exe

pid	process
1960	netsh.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/844-57-0x0000000000400000-0x0000000000425000-memory.dmp	upx
\Users\Admin\AppData\Roaming\spoolsv.exe	upx
\Users\Admin\AppData\Roaming\spoolsv.exe	upx
C:\Users\Admin\AppData\Roaming\spoolsv.exe	upx
behavioral1/memory/844-65-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/1620-68-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/1620-69-0x0000000000400000-0x0000000000425000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

spoolsv.exe

pid process

1620 spoolsv.exe

pid	process
1620	spoolsv.exe

Loads dropped DLL 2 IoCs

Processes:

fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe

pid	process
844	fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe
844	fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

spoolsv.exefb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\spoolsv.exe\""	spoolsv.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run	fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\spoolsv.exe\""	fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\spoolsv.exe\""	fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run	spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\spoolsv.exe\""	spoolsv.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474	fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exespoolsv.exe

pid process

844 fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe
1620 spoolsv.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe

description	pid	process	target process
PID 844 wrote to memory of 1960	844	fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe	netsh.exe
PID 844 wrote to memory of 1960	844	fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe	netsh.exe
PID 844 wrote to memory of 1960	844	fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe	netsh.exe
PID 844 wrote to memory of 1960	844	fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe	netsh.exe
PID 844 wrote to memory of 1620	844	fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe	spoolsv.exe
PID 844 wrote to memory of 1620	844	fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe	spoolsv.exe
PID 844 wrote to memory of 1620	844	fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe	spoolsv.exe
PID 844 wrote to memory of 1620	844	fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe	spoolsv.exe

C:\Users\Admin\AppData\Local\Temp\fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe
"C:\Users\Admin\AppData\Local\Temp\fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Modifies system certificate store
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:844

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\spoolsv.exe" CityScape Enable
2⤵
- Modifies Windows Firewall
PID:1960

C:\Users\Admin\AppData\Roaming\spoolsv.exe
/d C:\Users\Admin\AppData\Local\Temp\fb0530e5aaeb8d4594cd64bbc5ff52afdfca8dfc8722da25e17bd9087c77d676.exe
2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Deletes itself
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
PID:1620

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Install Root Certificate

1

T1130

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\spoolsv.exe
Filesize
144KB

MD5
41f2b495214576a81703deb12ef348cf

SHA1
8f38d1049635ab75152eca59ec6ba79a8b1e07df

SHA256
9f73ae8faab8ec1b2929a0959afca7ef01d56d9af234507f1d47a77d8f606c60

SHA512
d257c48f19ca0cf4235964f25763c84eabd48ac7d710c3b3a983d571974797300985b87f0b4ef3b17f52c21c415c7a7f2ca1711581dcef8514a093b17992faa0

Download Submit
\Users\Admin\AppData\Roaming\spoolsv.exe
Filesize
144KB

MD5
41f2b495214576a81703deb12ef348cf

SHA1
8f38d1049635ab75152eca59ec6ba79a8b1e07df

SHA256
9f73ae8faab8ec1b2929a0959afca7ef01d56d9af234507f1d47a77d8f606c60

SHA512
d257c48f19ca0cf4235964f25763c84eabd48ac7d710c3b3a983d571974797300985b87f0b4ef3b17f52c21c415c7a7f2ca1711581dcef8514a093b17992faa0

Download Submit
\Users\Admin\AppData\Roaming\spoolsv.exe
Filesize
144KB

MD5
41f2b495214576a81703deb12ef348cf

SHA1
8f38d1049635ab75152eca59ec6ba79a8b1e07df

SHA256
9f73ae8faab8ec1b2929a0959afca7ef01d56d9af234507f1d47a77d8f606c60

SHA512
d257c48f19ca0cf4235964f25763c84eabd48ac7d710c3b3a983d571974797300985b87f0b4ef3b17f52c21c415c7a7f2ca1711581dcef8514a093b17992faa0

Download Submit
memory/844-56-0x00000000762F1000-0x00000000762F3000-memory.dmp

Filesize
8KB

Download
memory/844-57-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/844-65-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1620-61-0x0000000000000000-mapping.dmp

Download
memory/1620-68-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1620-69-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1960-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads