tofsee | 483792510effe9b4c4085d1962caae4aa93547ebd91006a68de0b8745617c154

Analysis

max time kernel
144s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-02-2025 01:19

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General

Target

2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe
Size

12.9MB
MD5

988e4c015a0e26ef49408fe8d7dd8128
SHA1

b05c15ebd878390e309f887accd405614d7bbfa3
SHA256

483792510effe9b4c4085d1962caae4aa93547ebd91006a68de0b8745617c154
SHA512

ed2495b187f10adee5316af0a054718862b978f712a32724d4456196b0d3f4d7505ed5b2cf54ab32bb4ea8e2dc3c3cae2bb4c3dca3e67c6c5f88079f3f0af86d
SSDEEP

24576:upomTTN9ttttttttttttttttttttttttttttttttttttttttttttttttttttttt9:Coo

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\nwnmtvjb = "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
2732	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\nwnmtvjb\ImagePath = "C:\\Windows\\SysWOW64\\nwnmtvjb\\uptlbmom.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2824	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2716	uptlbmom.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2716 set thread context of 2824	2716	uptlbmom.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2356	sc.exe
2432	sc.exe
992	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 queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	uptlbmom.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2072	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	30
PID 2236 wrote to memory of 2072	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	30
PID 2236 wrote to memory of 2072	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	30
PID 2236 wrote to memory of 2072	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	30
PID 2236 wrote to memory of 2404	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	32
PID 2236 wrote to memory of 2404	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	32
PID 2236 wrote to memory of 2404	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	32
PID 2236 wrote to memory of 2404	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	32
PID 2236 wrote to memory of 2356	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	34
PID 2236 wrote to memory of 2356	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	34
PID 2236 wrote to memory of 2356	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	34
PID 2236 wrote to memory of 2356	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	34
PID 2236 wrote to memory of 2432	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	36
PID 2236 wrote to memory of 2432	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	36
PID 2236 wrote to memory of 2432	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	36
PID 2236 wrote to memory of 2432	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	36
PID 2236 wrote to memory of 992	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	38
PID 2236 wrote to memory of 992	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	38
PID 2236 wrote to memory of 992	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	38
PID 2236 wrote to memory of 992	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	38
PID 2716 wrote to memory of 2824	2716	uptlbmom.exe	41
PID 2716 wrote to memory of 2824	2716	uptlbmom.exe	41
PID 2716 wrote to memory of 2824	2716	uptlbmom.exe	41
PID 2716 wrote to memory of 2824	2716	uptlbmom.exe	41
PID 2716 wrote to memory of 2824	2716	uptlbmom.exe	41
PID 2716 wrote to memory of 2824	2716	uptlbmom.exe	41
PID 2236 wrote to memory of 2732	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	42
PID 2236 wrote to memory of 2732	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	42
PID 2236 wrote to memory of 2732	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	42
PID 2236 wrote to memory of 2732	2236	2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nwnmtvjb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2072
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uptlbmom.exe" C:\Windows\SysWOW64\nwnmtvjb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2404
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nwnmtvjb binPath= "C:\Windows\SysWOW64\nwnmtvjb\uptlbmom.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2356
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nwnmtvjb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2432
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nwnmtvjb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:992
- 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:2732

C:\Windows\SysWOW64\nwnmtvjb\uptlbmom.exe
C:\Windows\SysWOW64\nwnmtvjb\uptlbmom.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_988e4c015a0e26ef49408fe8d7dd8128_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2716
- 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:2824

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\uptlbmom.exe

Filesize
11.0MB

MD5
0e8c494265a0884be518bbb194c3ce44

SHA1
9ed1bc1b3c07d9f614d3093c470a06bf5eb41c86

SHA256
31232e13670743232907ca23426bc750e975c83cf803f7778056392715aad14d

SHA512
e749fafe1c43346c3db133fc336378227f6335b60e8557416730032348caf8d2c4e93fded8ccad3e7976623c1db4810f7ddb7a9e0d6c4281dcadcbfda8417628

Download Submit
memory/2236-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/2236-3-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2236-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2236-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2236-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2716-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2824-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2824-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2824-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads