tofsee | 24c40cf3cb1f4373c84a318ddb3a79299adad8a8a072d2ea179ebd6f127d620f

General

Target

2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe
Size

13.2MB
MD5

6715d07a7cac2eb14e9dbf43ea9817f3
SHA1

36c8911ad3c835d4cdea03e2263cfc6423501210
SHA256

24c40cf3cb1f4373c84a318ddb3a79299adad8a8a072d2ea179ebd6f127d620f
SHA512

cb3ffc8dc574273850a84a01a9ffb24ceb458a8e19cd3b02b5ac9806efa13824f29e364be7fe4d62725dc6e7757a8d4994a2fa51549b0a7b1444fc6a8fd4a5d0
SSDEEP

6144:x+rWO2zeSPDjMXMH7Ll4aFpWVqIwUAP97GEwHrG2+e1x2:x+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

4988 netsh.exe

pid	process
4988	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\pemtksm\ImagePath = "C:\\Windows\\SysWOW64\\pemtksm\\tvqhyszs.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_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4824 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

tvqhyszs.exe

pid process

3744 tvqhyszs.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

tvqhyszs.exe

description pid process target process

PID 3744 set thread context of 4824 3744 tvqhyszs.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

1844 sc.exe
2532 sc.exe
4548 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4824	svchost.exe

pid	process
3744	tvqhyszs.exe

description	pid	process	target process
PID 3744 set thread context of 4824	3744	tvqhyszs.exe	svchost.exe

pid	process
1844	sc.exe
2532	sc.exe
4548	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_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exetvqhyszs.exe

description	pid	process	target process
PID 4660 wrote to memory of 3544	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	cmd.exe
PID 4660 wrote to memory of 3544	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	cmd.exe
PID 4660 wrote to memory of 3544	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	cmd.exe
PID 4660 wrote to memory of 4332	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	cmd.exe
PID 4660 wrote to memory of 4332	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	cmd.exe
PID 4660 wrote to memory of 4332	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	cmd.exe
PID 4660 wrote to memory of 1844	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	sc.exe
PID 4660 wrote to memory of 1844	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	sc.exe
PID 4660 wrote to memory of 1844	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	sc.exe
PID 4660 wrote to memory of 2532	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	sc.exe
PID 4660 wrote to memory of 2532	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	sc.exe
PID 4660 wrote to memory of 2532	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	sc.exe
PID 4660 wrote to memory of 4548	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	sc.exe
PID 4660 wrote to memory of 4548	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	sc.exe
PID 4660 wrote to memory of 4548	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	sc.exe
PID 4660 wrote to memory of 4988	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	netsh.exe
PID 4660 wrote to memory of 4988	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	netsh.exe
PID 4660 wrote to memory of 4988	4660	2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe	netsh.exe
PID 3744 wrote to memory of 4824	3744	tvqhyszs.exe	svchost.exe
PID 3744 wrote to memory of 4824	3744	tvqhyszs.exe	svchost.exe
PID 3744 wrote to memory of 4824	3744	tvqhyszs.exe	svchost.exe
PID 3744 wrote to memory of 4824	3744	tvqhyszs.exe	svchost.exe
PID 3744 wrote to memory of 4824	3744	tvqhyszs.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4660

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pemtksm\
2⤵
PID:3544

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tvqhyszs.exe" C:\Windows\SysWOW64\pemtksm\
2⤵
PID:4332

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create pemtksm binPath= "C:\Windows\SysWOW64\pemtksm\tvqhyszs.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:1844

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description pemtksm "wifi internet conection"
2⤵
- Launches sc.exe
PID:2532

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start pemtksm
2⤵
- Launches sc.exe
PID:4548

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:4988

C:\Windows\SysWOW64\pemtksm\tvqhyszs.exe
C:\Windows\SysWOW64\pemtksm\tvqhyszs.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-07-01_6715d07a7cac2eb14e9dbf43ea9817f3_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3744

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:4824

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\tvqhyszs.exe
Filesize
14.9MB

MD5
c28bd7bbe17ca145b4a93bc8beab8dfc

SHA1
a3eeb2b1726f2b7beb876dbfa0568501535adc60

SHA256
585a4414e40b913bde7fa033c72f44a940a7938f4e165ad99ba9ec36af303fc0

SHA512
7a80a76c2eded11b987b65062cf4d0df3b54a5b43918adc78c1b298f72b5f872b27dbb2c501c33bc0879e50ce7d3ac62ac8510bf059fb164a7792b749d591a87

Download Submit
memory/3744-9-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/3744-11-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/3744-15-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/4660-1-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/4660-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4660-7-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4660-6-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/4824-10-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/4824-13-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/4824-16-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads