3b8c6f0033980eed8f86a029be14ff32c32f535c4bdaeb5c5f857236722ac9c8

General

Target

3b8c6f0033980eed8f86a029be14ff32c32f535c4bdaeb5c5f857236722ac9c8.exe
Size

47KB
MD5

541dce93da456fd7830cda46a9d07941
SHA1

b08b3bfd5556f18b8c696925146985a86ee72fdd
SHA256

3b8c6f0033980eed8f86a029be14ff32c32f535c4bdaeb5c5f857236722ac9c8
SHA512

6d2164e340691b2ba8cba81979d7fe403739290a583fdeaee7ead5c9b94bc5e0d025d1943df559e1a01ea2e700aa2513c7ad8bd742524d2370c54d644769a3e2

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

fontdrvhost.exe

pid process

1304 fontdrvhost.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1452 netsh.exe

pid	process
1304	fontdrvhost.exe

pid	process
1452	netsh.exe

Drops startup file 2 IoCs

Processes:

fontdrvhost.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2a55ad550e466e179f88a710a29a16af.exe	fontdrvhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2a55ad550e466e179f88a710a29a16af.exe	fontdrvhost.exe

Loads dropped DLL 1 IoCs

Processes:

3b8c6f0033980eed8f86a029be14ff32c32f535c4bdaeb5c5f857236722ac9c8.exe

pid process

1684 3b8c6f0033980eed8f86a029be14ff32c32f535c4bdaeb5c5f857236722ac9c8.exe

pid	process
1684	3b8c6f0033980eed8f86a029be14ff32c32f535c4bdaeb5c5f857236722ac9c8.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

fontdrvhost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\2a55ad550e466e179f88a710a29a16af = "\"C:\\Users\\Admin\\AppData\\Roaming\\fontdrvhost.exe\" .."	fontdrvhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\2a55ad550e466e179f88a710a29a16af = "\"C:\\Users\\Admin\\AppData\\Roaming\\fontdrvhost.exe\" .."	fontdrvhost.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 19 IoCs

Processes:

fontdrvhost.exe

description	pid	process
Token: SeDebugPrivilege	1304	fontdrvhost.exe
Token: 33	1304	fontdrvhost.exe
Token: SeIncBasePriorityPrivilege	1304	fontdrvhost.exe
Token: 33	1304	fontdrvhost.exe
Token: SeIncBasePriorityPrivilege	1304	fontdrvhost.exe
Token: 33	1304	fontdrvhost.exe
Token: SeIncBasePriorityPrivilege	1304	fontdrvhost.exe
Token: 33	1304	fontdrvhost.exe
Token: SeIncBasePriorityPrivilege	1304	fontdrvhost.exe
Token: 33	1304	fontdrvhost.exe
Token: SeIncBasePriorityPrivilege	1304	fontdrvhost.exe
Token: 33	1304	fontdrvhost.exe
Token: SeIncBasePriorityPrivilege	1304	fontdrvhost.exe
Token: 33	1304	fontdrvhost.exe
Token: SeIncBasePriorityPrivilege	1304	fontdrvhost.exe
Token: 33	1304	fontdrvhost.exe
Token: SeIncBasePriorityPrivilege	1304	fontdrvhost.exe
Token: 33	1304	fontdrvhost.exe
Token: SeIncBasePriorityPrivilege	1304	fontdrvhost.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

3b8c6f0033980eed8f86a029be14ff32c32f535c4bdaeb5c5f857236722ac9c8.exefontdrvhost.exe

description	pid	process	target process
PID 1684 wrote to memory of 1304	1684	3b8c6f0033980eed8f86a029be14ff32c32f535c4bdaeb5c5f857236722ac9c8.exe	fontdrvhost.exe
PID 1684 wrote to memory of 1304	1684	3b8c6f0033980eed8f86a029be14ff32c32f535c4bdaeb5c5f857236722ac9c8.exe	fontdrvhost.exe
PID 1684 wrote to memory of 1304	1684	3b8c6f0033980eed8f86a029be14ff32c32f535c4bdaeb5c5f857236722ac9c8.exe	fontdrvhost.exe
PID 1684 wrote to memory of 1304	1684	3b8c6f0033980eed8f86a029be14ff32c32f535c4bdaeb5c5f857236722ac9c8.exe	fontdrvhost.exe
PID 1304 wrote to memory of 1452	1304	fontdrvhost.exe	netsh.exe
PID 1304 wrote to memory of 1452	1304	fontdrvhost.exe	netsh.exe
PID 1304 wrote to memory of 1452	1304	fontdrvhost.exe	netsh.exe
PID 1304 wrote to memory of 1452	1304	fontdrvhost.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\3b8c6f0033980eed8f86a029be14ff32c32f535c4bdaeb5c5f857236722ac9c8.exe
"C:\Users\Admin\AppData\Local\Temp\3b8c6f0033980eed8f86a029be14ff32c32f535c4bdaeb5c5f857236722ac9c8.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1684

C:\Users\Admin\AppData\Roaming\fontdrvhost.exe
"C:\Users\Admin\AppData\Roaming\fontdrvhost.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1304

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\fontdrvhost.exe" "fontdrvhost.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:1452

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\fontdrvhost.exe
Filesize
47KB

MD5
541dce93da456fd7830cda46a9d07941

SHA1
b08b3bfd5556f18b8c696925146985a86ee72fdd

SHA256
3b8c6f0033980eed8f86a029be14ff32c32f535c4bdaeb5c5f857236722ac9c8

SHA512
6d2164e340691b2ba8cba81979d7fe403739290a583fdeaee7ead5c9b94bc5e0d025d1943df559e1a01ea2e700aa2513c7ad8bd742524d2370c54d644769a3e2

Download Submit
C:\Users\Admin\AppData\Roaming\fontdrvhost.exe
Filesize
47KB

MD5
541dce93da456fd7830cda46a9d07941

SHA1
b08b3bfd5556f18b8c696925146985a86ee72fdd

SHA256
3b8c6f0033980eed8f86a029be14ff32c32f535c4bdaeb5c5f857236722ac9c8

SHA512
6d2164e340691b2ba8cba81979d7fe403739290a583fdeaee7ead5c9b94bc5e0d025d1943df559e1a01ea2e700aa2513c7ad8bd742524d2370c54d644769a3e2

Download Submit
\Users\Admin\AppData\Roaming\fontdrvhost.exe
Filesize
47KB

MD5
541dce93da456fd7830cda46a9d07941

SHA1
b08b3bfd5556f18b8c696925146985a86ee72fdd

SHA256
3b8c6f0033980eed8f86a029be14ff32c32f535c4bdaeb5c5f857236722ac9c8

SHA512
6d2164e340691b2ba8cba81979d7fe403739290a583fdeaee7ead5c9b94bc5e0d025d1943df559e1a01ea2e700aa2513c7ad8bd742524d2370c54d644769a3e2

Download Submit
memory/1304-57-0x0000000000000000-mapping.dmp

Download
memory/1304-62-0x00000000744F0000-0x0000000074A9B000-memory.dmp

Filesize
5.7MB

Download
memory/1304-65-0x00000000744F0000-0x0000000074A9B000-memory.dmp

Filesize
5.7MB

Download
memory/1452-63-0x0000000000000000-mapping.dmp

Download
memory/1684-54-0x00000000752D1000-0x00000000752D3000-memory.dmp

Filesize
8KB

Download
memory/1684-55-0x00000000744F0000-0x0000000074A9B000-memory.dmp

Filesize
5.7MB

Download
memory/1684-61-0x00000000744F0000-0x0000000074A9B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads