tofsee | 6dd7abd54fb8d4a331fca9e51b59d045b5ff3b0bd5da50eafe3e77be3e7829af

Analysis

max time kernel
146s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 05:25

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General

Target

2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe
Size

10.5MB
MD5

cee37bed4dbbc6b359a589ec21fafc18
SHA1

9c201c7b568ff9804f1124c3d8aca6b06ba782a9
SHA256

6dd7abd54fb8d4a331fca9e51b59d045b5ff3b0bd5da50eafe3e77be3e7829af
SHA512

6833150a1e887358c520eeb53cb48160f88e02a3482798876033ba811bd8e3a23421304be46275ebe38d5b940d2d2b6da4c0f729fd7465b4a98ccc61fd496c40
SSDEEP

196608:ZyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX1:UXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXl

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\jprrciiz = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2764	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\jprrciiz\ImagePath = "C:\\Windows\\SysWOW64\\jprrciiz\\foinfezv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2888	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2740	foinfezv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2740 set thread context of 2888	2740	foinfezv.exe	41

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2848	sc.exe
2136	sc.exe
2752	sc.exe

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

System Information Discovery
T1082

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

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

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	foinfezv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 2860	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	29
PID 2304 wrote to memory of 2860	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	29
PID 2304 wrote to memory of 2860	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	29
PID 2304 wrote to memory of 2860	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	29
PID 2304 wrote to memory of 3012	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	31
PID 2304 wrote to memory of 3012	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	31
PID 2304 wrote to memory of 3012	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	31
PID 2304 wrote to memory of 3012	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	31
PID 2304 wrote to memory of 2848	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	33
PID 2304 wrote to memory of 2848	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	33
PID 2304 wrote to memory of 2848	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	33
PID 2304 wrote to memory of 2848	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	33
PID 2304 wrote to memory of 2136	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	35
PID 2304 wrote to memory of 2136	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	35
PID 2304 wrote to memory of 2136	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	35
PID 2304 wrote to memory of 2136	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	35
PID 2304 wrote to memory of 2752	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	37
PID 2304 wrote to memory of 2752	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	37
PID 2304 wrote to memory of 2752	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	37
PID 2304 wrote to memory of 2752	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	37
PID 2304 wrote to memory of 2764	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	40
PID 2304 wrote to memory of 2764	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	40
PID 2304 wrote to memory of 2764	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	40
PID 2304 wrote to memory of 2764	2304	2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe	40
PID 2740 wrote to memory of 2888	2740	foinfezv.exe	41
PID 2740 wrote to memory of 2888	2740	foinfezv.exe	41
PID 2740 wrote to memory of 2888	2740	foinfezv.exe	41
PID 2740 wrote to memory of 2888	2740	foinfezv.exe	41
PID 2740 wrote to memory of 2888	2740	foinfezv.exe	41
PID 2740 wrote to memory of 2888	2740	foinfezv.exe	41

C:\Users\Admin\AppData\Local\Temp\2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jprrciiz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\foinfezv.exe" C:\Windows\SysWOW64\jprrciiz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jprrciiz binPath= "C:\Windows\SysWOW64\jprrciiz\foinfezv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jprrciiz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jprrciiz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- 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
  - System Location Discovery: System Language Discovery
  PID:2764

C:\Windows\SysWOW64\jprrciiz\foinfezv.exe
C:\Windows\SysWOW64\jprrciiz\foinfezv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_cee37bed4dbbc6b359a589ec21fafc18_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2740
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
13.3MB

MD5
262464f90ccdf456d0b46665a6a7064b

SHA1
f8fdd536d5d1aedab168964918f7b95f0c4a75be

SHA256
6c7c6734ca056981fc2c177a21a343e06dc512c627edcb29cb4aadf5eac96983

SHA512
5c43745a0af32e8a2c8e2ebc69551900ae1fe02992016e883c07cc96bc50602b2b3d6f6fe10754c3113d34fabf4bb13d2bece9511ce62a27bc68542be74634a0

Download Submit
memory/2304-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2304-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2304-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2304-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2304-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2304-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/2740-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2888-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2888-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2888-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2888-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2888-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads