tofsee | 1161a96ea576637a2cd6b6021d818a2bed2fe3a16f39ef2584bc2c1648238a10

Analysis

max time kernel
145s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-02-2025 18:49

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General

Target

2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe
Size

12.4MB
MD5

f639196be08948ac9eb5a1a4510c4af1
SHA1

f1048d26a50c7212a58792f17556d4d6ab241f59
SHA256

1161a96ea576637a2cd6b6021d818a2bed2fe3a16f39ef2584bc2c1648238a10
SHA512

60d5f7010280a4e7f1d5a6ee3563ca8770719f337553af741d7a90757bc6c33a1392e4042ba2b18f79d1e44d6586ee71e5f3669c9b1fe627681ac67185a79ffb
SSDEEP

393216:9XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:

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\weiwotvu = "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
2140	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\weiwotvu\ImagePath = "C:\\Windows\\SysWOW64\\weiwotvu\\trabkgvr.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2088	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2808	trabkgvr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2808 set thread context of 2088	2808	trabkgvr.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2000	sc.exe
340	sc.exe
2680	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 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

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	trabkgvr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 2460	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	30
PID 2348 wrote to memory of 2460	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	30
PID 2348 wrote to memory of 2460	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	30
PID 2348 wrote to memory of 2460	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	30
PID 2348 wrote to memory of 1920	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	32
PID 2348 wrote to memory of 1920	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	32
PID 2348 wrote to memory of 1920	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	32
PID 2348 wrote to memory of 1920	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	32
PID 2348 wrote to memory of 2000	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	34
PID 2348 wrote to memory of 2000	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	34
PID 2348 wrote to memory of 2000	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	34
PID 2348 wrote to memory of 2000	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	34
PID 2348 wrote to memory of 340	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	36
PID 2348 wrote to memory of 340	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	36
PID 2348 wrote to memory of 340	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	36
PID 2348 wrote to memory of 340	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	36
PID 2348 wrote to memory of 2680	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	38
PID 2348 wrote to memory of 2680	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	38
PID 2348 wrote to memory of 2680	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	38
PID 2348 wrote to memory of 2680	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	38
PID 2808 wrote to memory of 2088	2808	trabkgvr.exe	41
PID 2808 wrote to memory of 2088	2808	trabkgvr.exe	41
PID 2808 wrote to memory of 2088	2808	trabkgvr.exe	41
PID 2808 wrote to memory of 2088	2808	trabkgvr.exe	41
PID 2808 wrote to memory of 2088	2808	trabkgvr.exe	41
PID 2808 wrote to memory of 2088	2808	trabkgvr.exe	41
PID 2348 wrote to memory of 2140	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	42
PID 2348 wrote to memory of 2140	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	42
PID 2348 wrote to memory of 2140	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	42
PID 2348 wrote to memory of 2140	2348	2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\weiwotvu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2460
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\trabkgvr.exe" C:\Windows\SysWOW64\weiwotvu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create weiwotvu binPath= "C:\Windows\SysWOW64\weiwotvu\trabkgvr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2000
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description weiwotvu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:340
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start weiwotvu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2680
- 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:2140

C:\Windows\SysWOW64\weiwotvu\trabkgvr.exe
C:\Windows\SysWOW64\weiwotvu\trabkgvr.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-05_f639196be08948ac9eb5a1a4510c4af1_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2808
- 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:2088

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\trabkgvr.exe

Filesize
11.1MB

MD5
fc73a712a92ae6ddb81a4a45b1264648

SHA1
ba3f3fdf157abc2ed18fa525dfc3795c9c1b569d

SHA256
10fb44cc7e40e31b20f2b324ec29e5253772d163060bec24d9f6647624d035d4

SHA512
7471c7b647a3caaffd9501238722c9df0c15da169e2c222648c49b720613a68e3acfce53d1196385012f7d446d002ec5ca8e22b59106ca065dcef26567881830

Download Submit
memory/2088-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2088-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2088-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2088-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2088-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2348-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2348-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2348-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2348-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2348-14-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2348-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2348-16-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2808-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads