tofsee | 45d151f9dfbe922d2783ae25abba72cccd65b388388ff870168b4bc2f2dadb20

Analysis

max time kernel
144s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 06:18

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General

Target

2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe
Size

13.3MB
MD5

4e841177032768bf943fe6146883b0a6
SHA1

ee2624d773be4d52f0203218ee96ab716d72930c
SHA256

45d151f9dfbe922d2783ae25abba72cccd65b388388ff870168b4bc2f2dadb20
SHA512

3c995f2b739d321af4e938c672f4bf4f1b563582bd2b7601a712c61ee93ea547de1d2067be17dac039fbb5da25abff053fff7fd25b1430ddaf22a15b8cba4c5d
SSDEEP

3072:RLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/K:UOMdRQr7OB0ypmMXnl8XEPM3noSWOCR

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\jeacmmjb = "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
2912	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\jeacmmjb\ImagePath = "C:\\Windows\\SysWOW64\\jeacmmjb\\zbwcvis.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2884	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2892	zbwcvis.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2892 set thread context of 2884	2892	zbwcvis.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
264	sc.exe
2484	sc.exe
1896	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zbwcvis.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2328	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	30
PID 2292 wrote to memory of 2328	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	30
PID 2292 wrote to memory of 2328	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	30
PID 2292 wrote to memory of 2328	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	30
PID 2292 wrote to memory of 2120	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	32
PID 2292 wrote to memory of 2120	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	32
PID 2292 wrote to memory of 2120	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	32
PID 2292 wrote to memory of 2120	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	32
PID 2292 wrote to memory of 264	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	34
PID 2292 wrote to memory of 264	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	34
PID 2292 wrote to memory of 264	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	34
PID 2292 wrote to memory of 264	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	34
PID 2292 wrote to memory of 2484	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	36
PID 2292 wrote to memory of 2484	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	36
PID 2292 wrote to memory of 2484	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	36
PID 2292 wrote to memory of 2484	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	36
PID 2292 wrote to memory of 1896	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	38
PID 2292 wrote to memory of 1896	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	38
PID 2292 wrote to memory of 1896	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	38
PID 2292 wrote to memory of 1896	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	38
PID 2292 wrote to memory of 2912	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	41
PID 2292 wrote to memory of 2912	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	41
PID 2292 wrote to memory of 2912	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	41
PID 2292 wrote to memory of 2912	2292	2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe	41
PID 2892 wrote to memory of 2884	2892	zbwcvis.exe	43
PID 2892 wrote to memory of 2884	2892	zbwcvis.exe	43
PID 2892 wrote to memory of 2884	2892	zbwcvis.exe	43
PID 2892 wrote to memory of 2884	2892	zbwcvis.exe	43
PID 2892 wrote to memory of 2884	2892	zbwcvis.exe	43
PID 2892 wrote to memory of 2884	2892	zbwcvis.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jeacmmjb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2328
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zbwcvis.exe" C:\Windows\SysWOW64\jeacmmjb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2120
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jeacmmjb binPath= "C:\Windows\SysWOW64\jeacmmjb\zbwcvis.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:264
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jeacmmjb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2484
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jeacmmjb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1896
- 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:2912

C:\Windows\SysWOW64\jeacmmjb\zbwcvis.exe
C:\Windows\SysWOW64\jeacmmjb\zbwcvis.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_4e841177032768bf943fe6146883b0a6_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2892
- 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:2884

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\zbwcvis.exe

Filesize
14.7MB

MD5
28a9364d6e3844a189e4d736d69313d6

SHA1
93177b96b6703eed2fac5dbaa2fae594b25a66b4

SHA256
be4fba54a1dfbd65e2b64fa6c6b74e084bf194dfdba4cb2417c9b809a9fa34d1

SHA512
b21cdd179321b8d8298c95dbb489e5d1c1decbfa7632d51da828851e90bf6bb8ad4c528ebbdba42ee6aed08590c09d4163d7e35b7f8948756ed7a283426d4249

Download Submit
memory/2292-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2292-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2292-2-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2292-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2292-8-0x00000000001B0000-0x00000000001C3000-memory.dmp

Filesize
76KB

Download
memory/2292-1-0x0000000000270000-0x0000000000370000-memory.dmp

Filesize
1024KB

Download
memory/2884-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2884-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2884-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2884-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2884-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2892-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads