tofsee | e93b25fc2f3e98f23a875044f9aef1c511c32ce591d126f4729c7434f10eab46

General

Target

2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe
Size

12.3MB
MD5

363971fcae368f8ce07971a103a074a6
SHA1

b49dd18b2739ce13bcb1c5448b5a4f94ae7937e4
SHA256

e93b25fc2f3e98f23a875044f9aef1c511c32ce591d126f4729c7434f10eab46
SHA512

b218906d9faf45946714baa0dc87dc160bd26c7b169905a8b56347828e849f2e91731632c1e792425857297fe4d65dd13f9bc88a4f47ad577fb4cf102884c785
SSDEEP

6144:1+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:1+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

3288 netsh.exe

pid	process
3288	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\ygxvkpwl\ImagePath = "C:\\Windows\\SysWOW64\\ygxvkpwl\\vrlrxzri.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:

2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

1764 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

vrlrxzri.exe

pid process

3896 vrlrxzri.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

vrlrxzri.exe

description pid process target process

PID 3896 set thread context of 1764 3896 vrlrxzri.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

1272 sc.exe
2300 sc.exe
1088 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1764	svchost.exe

pid	process
3896	vrlrxzri.exe

description	pid	process	target process
PID 3896 set thread context of 1764	3896	vrlrxzri.exe	svchost.exe

pid	process
1272	sc.exe
2300	sc.exe
1088	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exevrlrxzri.exe

description	pid	process	target process
PID 3172 wrote to memory of 116	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	cmd.exe
PID 3172 wrote to memory of 116	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	cmd.exe
PID 3172 wrote to memory of 116	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	cmd.exe
PID 3172 wrote to memory of 4472	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	cmd.exe
PID 3172 wrote to memory of 4472	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	cmd.exe
PID 3172 wrote to memory of 4472	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	cmd.exe
PID 3172 wrote to memory of 1088	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 3172 wrote to memory of 1088	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 3172 wrote to memory of 1088	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 3172 wrote to memory of 1272	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 3172 wrote to memory of 1272	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 3172 wrote to memory of 1272	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 3172 wrote to memory of 2300	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 3172 wrote to memory of 2300	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 3172 wrote to memory of 2300	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	sc.exe
PID 3172 wrote to memory of 3288	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	netsh.exe
PID 3172 wrote to memory of 3288	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	netsh.exe
PID 3172 wrote to memory of 3288	3172	2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe	netsh.exe
PID 3896 wrote to memory of 1764	3896	vrlrxzri.exe	svchost.exe
PID 3896 wrote to memory of 1764	3896	vrlrxzri.exe	svchost.exe
PID 3896 wrote to memory of 1764	3896	vrlrxzri.exe	svchost.exe
PID 3896 wrote to memory of 1764	3896	vrlrxzri.exe	svchost.exe
PID 3896 wrote to memory of 1764	3896	vrlrxzri.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3172

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ygxvkpwl\
2⤵
PID:116

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vrlrxzri.exe" C:\Windows\SysWOW64\ygxvkpwl\
2⤵
PID:4472

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ygxvkpwl binPath= "C:\Windows\SysWOW64\ygxvkpwl\vrlrxzri.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1088

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ygxvkpwl "wifi internet conection"
2⤵
- Launches sc.exe
PID:1272

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ygxvkpwl
2⤵
- Launches sc.exe
PID:2300

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:3288

C:\Windows\SysWOW64\ygxvkpwl\vrlrxzri.exe
C:\Windows\SysWOW64\ygxvkpwl\vrlrxzri.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-07-01_363971fcae368f8ce07971a103a074a6_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3896

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:1764

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

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Downloads

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

Filesize
14.8MB

MD5
85fbe8cc19c82339264ef169cd2408b3

SHA1
24aa4209acc6164959e0e1fc320abd188be229ed

SHA256
efbb4ed2545e4939616eb6e1d788121074a1258caae9ce8e1ad4225554eeae92

SHA512
d8b5b6c932abd8da2d4d430f8ef7a9fb3d109661f108c7e023c31eb2372fb047e75fc132caafc6c9af987ba27dc7b3eee03908a826fc62e663d42e73f3338096

Download Submit
memory/1764-14-0x0000000000DA0000-0x0000000000DB5000-memory.dmp

Filesize
84KB

Download
memory/1764-16-0x0000000000DA0000-0x0000000000DB5000-memory.dmp

Filesize
84KB

Download
memory/1764-10-0x0000000000DA0000-0x0000000000DB5000-memory.dmp

Filesize
84KB

Download
memory/3172-1-0x0000000000840000-0x0000000000940000-memory.dmp

Filesize
1024KB

Download
memory/3172-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3172-7-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3172-6-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/3896-15-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/3896-11-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/3896-9-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads