7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee | Triage

Analysis

max time kernel
105s
max time network
123s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
19/09/2022, 01:35 UTC

Sharing

Reason

Machine shutdown

Report Analysis Logs

General

Target

7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe
Size

96KB
MD5

8b7998d0f4236f4d0bb2c145a27fcf77
SHA1

72a366ce17c86fae0ffe25411f11a6704637f454
SHA256

7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee
SHA512

5ee0e46758a9142debbcb35dc1701c319651d0d4061867f11ce5fd50032cafe109cdec96b476e9aec84d5eaa718d98eb47d35437cdb6b988facb70ec3eca574f
SSDEEP

1536:7mGuD0/OD6fctEwAynAnOQjbQokSrHPHvFHJR+ltYGpMPkjBBPZW8HaYD2BzyAoP:6GlctCDQpSrHvvFHJRP3QBPZW8HhD2Bq

Score

10^/10

evasion trojan

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 2 IoCs

Modify Registry

Modify Existing Service

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe

UAC bypass 3 TTPs 1 IoCs

Bypass User Account Control

Disabling Security Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\wscntfy.exe	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe
File opened for modification	C:\Windows\SysWOW64\wscntfy.exe	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies Internet Explorer Phishing Filter 1 TTPs 4 IoCs

Modify Registry

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PhishingFilter	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PhishingFilter\Enabled = "0"	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\PhishingFilter	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\PhishingFilter\Enabled = "0"	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Internet Explorer\PhishingFilter	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\Enabled = "0"	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1768	shutdown.exe
Token: SeRemoteShutdownPrivilege	1768	shutdown.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1608	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe
1608	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 1768	1608	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe	28
PID 1608 wrote to memory of 1768	1608	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe	28
PID 1608 wrote to memory of 1768	1608	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe	28
PID 1608 wrote to memory of 1768	1608	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe	28

System policy modification 1 TTPs 2 IoCs

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe

C:\Users\Admin\AppData\Local\Temp\7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe
"C:\Users\Admin\AppData\Local\Temp\7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe"
1⤵
- Modifies firewall policy service
- UAC bypass
- Checks whether UAC is enabled
- Drops file in System32 directory
- Modifies Internet Explorer Phishing Filter
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1608
- C:\Windows\SysWOW64\shutdown.exe
  "C:\Windows\System32\shutdown.exe" -r -f -t 10
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1768

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:1680

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:1052

Network

DNS

www3.sexown.com

7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe

Remote address:

8.8.8.8:53

Request

www3.sexown.com

IN A

Response

No results found

8.8.8.8:53

www3.sexown.com

dns

7defc8cea1f8ee830e1985c78728051534456daf78b229fcf6566ff3ce9d32ee.exe

61 B
61 B
1
1

DNS Request

www3.sexown.com

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

Privilege Escalation

Bypass User Account Control

Defense Evasion

Bypass User Account Control

Disabling Security Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1608-57-0x0000000075A91000-0x0000000075A93000-memory.dmp

Filesize
8KB

Download
memory/1680-59-0x000007FEFBB21000-0x000007FEFBB23000-memory.dmp

Filesize
8KB

Download