tofsee | f3f8ead588e2333c6e66a48384e0ee9a04f36b4c0ddfa6a35e2b8724b93e427d

General

Target

2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe
Size

12.7MB
MD5

d5483c0ac3f27c4120a89481577d1a27
SHA1

1dcea0d988534f7bcb8888b90576fa710f0b2713
SHA256

f3f8ead588e2333c6e66a48384e0ee9a04f36b4c0ddfa6a35e2b8724b93e427d
SHA512

d98b9bddc09bff8ccb2c10cdccd1ecd529f75219bbab1d1937d7084ff5385c01a119ae8bc14858ff4849840b960c391fbaa69aa88b1466b3d3e366d796add97c
SSDEEP

6144:++rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:++r1IeSXMXc7LlxWV4Ug97GZ+ej

Score

10^/10

tofsee evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

4204 netsh.exe

pid	process
4204	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\vzldknzn\ImagePath = "C:\\Windows\\SysWOW64\\vzldknzn\\fdkgfomd.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

32 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

fdkgfomd.exe

pid process

3812 fdkgfomd.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

fdkgfomd.exe

description pid process target process

PID 3812 set thread context of 32 3812 fdkgfomd.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

3908 sc.exe
1236 sc.exe
2640 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
32	svchost.exe

pid	process
3812	fdkgfomd.exe

description	pid	process	target process
PID 3812 set thread context of 32	3812	fdkgfomd.exe	svchost.exe

pid	process
3908	sc.exe
1236	sc.exe
2640	sc.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

Processes:

netsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exefdkgfomd.exe

description	pid	process	target process
PID 4564 wrote to memory of 4152	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	cmd.exe
PID 4564 wrote to memory of 4152	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	cmd.exe
PID 4564 wrote to memory of 4152	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	cmd.exe
PID 4564 wrote to memory of 1556	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	cmd.exe
PID 4564 wrote to memory of 1556	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	cmd.exe
PID 4564 wrote to memory of 1556	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	cmd.exe
PID 4564 wrote to memory of 3908	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	sc.exe
PID 4564 wrote to memory of 3908	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	sc.exe
PID 4564 wrote to memory of 3908	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	sc.exe
PID 4564 wrote to memory of 1236	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	sc.exe
PID 4564 wrote to memory of 1236	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	sc.exe
PID 4564 wrote to memory of 1236	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	sc.exe
PID 4564 wrote to memory of 2640	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	sc.exe
PID 4564 wrote to memory of 2640	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	sc.exe
PID 4564 wrote to memory of 2640	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	sc.exe
PID 4564 wrote to memory of 4204	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	netsh.exe
PID 4564 wrote to memory of 4204	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	netsh.exe
PID 4564 wrote to memory of 4204	4564	2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe	netsh.exe
PID 3812 wrote to memory of 32	3812	fdkgfomd.exe	svchost.exe
PID 3812 wrote to memory of 32	3812	fdkgfomd.exe	svchost.exe
PID 3812 wrote to memory of 32	3812	fdkgfomd.exe	svchost.exe
PID 3812 wrote to memory of 32	3812	fdkgfomd.exe	svchost.exe
PID 3812 wrote to memory of 32	3812	fdkgfomd.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4564

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vzldknzn\
2⤵
PID:4152

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fdkgfomd.exe" C:\Windows\SysWOW64\vzldknzn\
2⤵
PID:1556

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create vzldknzn binPath= "C:\Windows\SysWOW64\vzldknzn\fdkgfomd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:3908

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description vzldknzn "wifi internet conection"
2⤵
- Launches sc.exe
PID:1236

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start vzldknzn
2⤵
- Launches sc.exe
PID:2640

C:\Windows\SysWOW64\netsh.exe
"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
2⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
PID:4204

C:\Windows\SysWOW64\vzldknzn\fdkgfomd.exe
C:\Windows\SysWOW64\vzldknzn\fdkgfomd.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-06-27_d5483c0ac3f27c4120a89481577d1a27_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3812

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:32

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\fdkgfomd.exe

Filesize
12.0MB

MD5
182262416dbe7164ce66b2584c980409

SHA1
18b308155c78b45ae72b18fa151232a156bfdb75

SHA256
b12df06b3cd14f1a7ac93224fdf6d9d23a63a7fbe4615b28ba6ea9b9ea413d25

SHA512
2d9dced1884012a534219961ea7506d0f1da620c9e084e6d9e28ca52f8386bb66c32bc888c6eccc100f46489f81f483ce15d57e23d1da9db31428c4cbf07d749

Download Submit
memory/32-10-0x0000000000C30000-0x0000000000C45000-memory.dmp

Filesize
84KB

Download
memory/32-14-0x0000000000C30000-0x0000000000C45000-memory.dmp

Filesize
84KB

Download
memory/32-13-0x0000000000C30000-0x0000000000C45000-memory.dmp

Filesize
84KB

Download
memory/3812-9-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/3812-11-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/4564-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4564-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/4564-7-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4564-6-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads