df3a1348fcb0dd0b9e08ef7093d46e7659fb8ee29d0ea86c4ff314623b3099e0

General

Target

F-SecureOnlineScanner.exe
Size

11.1MB
MD5

716db5b7f8a597b38c9b8058cf2ae0e1
SHA1

e9f33d35992041b15ff0fc02317790b799b7063a
SHA256

df3a1348fcb0dd0b9e08ef7093d46e7659fb8ee29d0ea86c4ff314623b3099e0
SHA512

0a8e15bf8c1e13ad6fa6e3e92699bd7916d6da1a635f41e4e444fb3d4dfcd533373a5b66131718999562c6acfc9a42c3ef446335a552646b457c4de2204d1225
SSDEEP

196608:9nOPSP9vvePmFIihohcjwT9GDZXWrvXT7wuPFFmMpCjZz3u7aw2mLEJGUQ:9nOPSNvimKk27GtWrvT8uClzLXZhQ

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	fssos.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\RemovalTool = "\"C:\\Users\\Admin\\AppData\\Local\\FSDART\\3F500B~1\\fssos.exe\" /reboot /user_consented 0"	fssos.exe

Executes dropped EXE 1 IoCs

pid	Process
3676	fssos.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\F-Secure.CCFIPCNames	fssos.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\F-Secure.CCFIPCNames\{17D22746-B60F-428b-ACD6-6E3B0599645A} = "16521021752968951668"	fssos.exe

Modifies system certificate store 2 TTPs 5 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0563B8630D62D75ABBC8AB1E4BDFB5A899B24D43	F-SecureOnlineScanner.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0563B8630D62D75ABBC8AB1E4BDFB5A899B24D43\Blob = 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	F-SecureOnlineScanner.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0563B8630D62D75ABBC8AB1E4BDFB5A899B24D43\Blob = 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	F-SecureOnlineScanner.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0563B8630D62D75ABBC8AB1E4BDFB5A899B24D43\Blob = 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	F-SecureOnlineScanner.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0563B8630D62D75ABBC8AB1E4BDFB5A899B24D43\Blob = 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	F-SecureOnlineScanner.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3676	fssos.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 3676	1152	F-SecureOnlineScanner.exe	84
PID 1152 wrote to memory of 3676	1152	F-SecureOnlineScanner.exe	84
PID 1152 wrote to memory of 3676	1152	F-SecureOnlineScanner.exe	84

C:\Users\Admin\AppData\Local\Temp\F-SecureOnlineScanner.exe
"C:\Users\Admin\AppData\Local\Temp\F-SecureOnlineScanner.exe"
1⤵
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Users\Admin\AppData\Local\FSDART\3f500b7d-cfab-4455-a961-d02668f2ad5d\fssos.exe
  "C:\Users\Admin\AppData\Local\FSDART\3f500b7d-cfab-4455-a961-d02668f2ad5d\fssos.exe"
  2⤵
  - Adds Run key to start application
  - Executes dropped EXE
  - Modifies registry class
  - Suspicious use of FindShellTrayWindow
  PID:3676

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Install Root Certificate

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\FSDART\3f500b7d-cfab-4455-a961-d02668f2ad5d\fssos.exe

Filesize
1.2MB

MD5
c7abd2cee970992d420d4b7b5b3e3dee

SHA1
e719b3e29a241fac2562e96f01dff1a7e6f6ebde

SHA256
3d3c1a0a27a22c93514f25fcf94f928281a7fa0b1b9dc6d18cbc085a1a393433

SHA512
991c234b64da7f567f96435f6050a7039e737b6338aa17688435341140d756c4192e674c96c955964a1f48301f0eae20a3591adeccee45a31225a4a5bab58195

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads