tofsee | bdc9e29f60050c116a263f1b183fd1f15c268e21a29ab43546cc9d1e40e66ab3

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-01-2025 20:16

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General

Target

2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe
Size

11.0MB
MD5

08074404f8b31d0e87a7463ad0b8971d
SHA1

6233da81ed9883318a02d5a87fcfcf52e3617cd9
SHA256

bdc9e29f60050c116a263f1b183fd1f15c268e21a29ab43546cc9d1e40e66ab3
SHA512

c02e3363a74a8bee633135005208305c6140b71d5a6f2994f408c80e840ce277a47d6df4de42b2a82dd235c4a4cf6fa7716e52e32ef9796c5d7e8ccb23dabbb8
SSDEEP

24576:L6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ4:GWdLQk

Score

10^/10

tofsee discovery evasion 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

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\gvjivkba = "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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3048	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\gvjivkba\ImagePath = "C:\\Windows\\SysWOW64\\gvjivkba\\xrritctv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2604	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2636	xrritctv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2636 set thread context of 2604	2636	xrritctv.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2960	sc.exe
2852	sc.exe
2564	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xrritctv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 2828	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	30
PID 2228 wrote to memory of 2828	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	30
PID 2228 wrote to memory of 2828	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	30
PID 2228 wrote to memory of 2828	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	30
PID 2228 wrote to memory of 2744	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	32
PID 2228 wrote to memory of 2744	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	32
PID 2228 wrote to memory of 2744	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	32
PID 2228 wrote to memory of 2744	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	32
PID 2228 wrote to memory of 2960	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	34
PID 2228 wrote to memory of 2960	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	34
PID 2228 wrote to memory of 2960	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	34
PID 2228 wrote to memory of 2960	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	34
PID 2228 wrote to memory of 2852	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	36
PID 2228 wrote to memory of 2852	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	36
PID 2228 wrote to memory of 2852	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	36
PID 2228 wrote to memory of 2852	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	36
PID 2228 wrote to memory of 2564	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	38
PID 2228 wrote to memory of 2564	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	38
PID 2228 wrote to memory of 2564	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	38
PID 2228 wrote to memory of 2564	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	38
PID 2636 wrote to memory of 2604	2636	xrritctv.exe	41
PID 2636 wrote to memory of 2604	2636	xrritctv.exe	41
PID 2636 wrote to memory of 2604	2636	xrritctv.exe	41
PID 2636 wrote to memory of 2604	2636	xrritctv.exe	41
PID 2636 wrote to memory of 2604	2636	xrritctv.exe	41
PID 2636 wrote to memory of 2604	2636	xrritctv.exe	41
PID 2228 wrote to memory of 3048	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	42
PID 2228 wrote to memory of 3048	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	42
PID 2228 wrote to memory of 3048	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	42
PID 2228 wrote to memory of 3048	2228	2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gvjivkba\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2828
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xrritctv.exe" C:\Windows\SysWOW64\gvjivkba\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gvjivkba binPath= "C:\Windows\SysWOW64\gvjivkba\xrritctv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gvjivkba "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2852
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gvjivkba
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2564
- 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:3048

C:\Windows\SysWOW64\gvjivkba\xrritctv.exe
C:\Windows\SysWOW64\gvjivkba\xrritctv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-19_08074404f8b31d0e87a7463ad0b8971d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2636
- 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:2604

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\xrritctv.exe

Filesize
15.0MB

MD5
2dbd1d0a77b49ed7bf3671d9e6fa671f

SHA1
e2e041ea97e398fe171513daf387e7b25af513ba

SHA256
74b07ba4135f6b5addc659ce9c6e3b4abc739f7ee5195a83317df07e2ae7d36c

SHA512
1aacbe301717ebccf7b7aafe3e53b2f4c1613dd78b1d1a1d9c7297c18c48e550112e67925379162c715ec6966c847370004dd6ec15946243c6a68b7e189057c5

Download Submit
memory/2228-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2228-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2228-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2228-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2228-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

Filesize
1024KB

Download
memory/2228-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2604-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2604-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2604-8-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2604-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2604-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2636-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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