tofsee | 26f3f96b93dee152a3a42cfe4903fe6bc84c1885e0ab5ab585ed15bdeb310b9e

Analysis

max time kernel
146s
max time network
128s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
21-01-2025 23:41

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General

Target

2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe
Size

12.6MB
MD5

f082e34b66daea7261a92c6b573ab9c9
SHA1

6122fab91a97699f87a0efb1dfd994204fba7473
SHA256

26f3f96b93dee152a3a42cfe4903fe6bc84c1885e0ab5ab585ed15bdeb310b9e
SHA512

ee88bea5bea4e0bb134137b8f6c820087b2554a047d62a40fad123708e499319c7416281bf20ca7a0b4f612b87e8e9cdff1fea3a0c547910b17602224f402cac
SSDEEP

24576:d6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQI:MWdLQk

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\ojegdzth = "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
2724	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\ojegdzth\ImagePath = "C:\\Windows\\SysWOW64\\ojegdzth\\vrjjgvui.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2752	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2840	vrjjgvui.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2840 set thread context of 2752	2840	vrjjgvui.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
3048	sc.exe
2936	sc.exe
2704	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vrjjgvui.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.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	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 3032 wrote to memory of 2804	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	30
PID 3032 wrote to memory of 2804	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	30
PID 3032 wrote to memory of 2804	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	30
PID 3032 wrote to memory of 2804	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	30
PID 3032 wrote to memory of 2864	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	32
PID 3032 wrote to memory of 2864	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	32
PID 3032 wrote to memory of 2864	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	32
PID 3032 wrote to memory of 2864	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	32
PID 3032 wrote to memory of 3048	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	34
PID 3032 wrote to memory of 3048	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	34
PID 3032 wrote to memory of 3048	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	34
PID 3032 wrote to memory of 3048	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	34
PID 3032 wrote to memory of 2936	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	36
PID 3032 wrote to memory of 2936	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	36
PID 3032 wrote to memory of 2936	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	36
PID 3032 wrote to memory of 2936	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	36
PID 3032 wrote to memory of 2704	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	38
PID 3032 wrote to memory of 2704	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	38
PID 3032 wrote to memory of 2704	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	38
PID 3032 wrote to memory of 2704	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	38
PID 3032 wrote to memory of 2724	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	41
PID 3032 wrote to memory of 2724	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	41
PID 3032 wrote to memory of 2724	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	41
PID 3032 wrote to memory of 2724	3032	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	41
PID 2840 wrote to memory of 2752	2840	vrjjgvui.exe	43
PID 2840 wrote to memory of 2752	2840	vrjjgvui.exe	43
PID 2840 wrote to memory of 2752	2840	vrjjgvui.exe	43
PID 2840 wrote to memory of 2752	2840	vrjjgvui.exe	43
PID 2840 wrote to memory of 2752	2840	vrjjgvui.exe	43
PID 2840 wrote to memory of 2752	2840	vrjjgvui.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ojegdzth\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vrjjgvui.exe" C:\Windows\SysWOW64\ojegdzth\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2864
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ojegdzth binPath= "C:\Windows\SysWOW64\ojegdzth\vrjjgvui.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3048
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ojegdzth "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ojegdzth
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2704
- 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:2724

C:\Windows\SysWOW64\ojegdzth\vrjjgvui.exe
C:\Windows\SysWOW64\ojegdzth\vrjjgvui.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2840
- 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:2752

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\vrjjgvui.exe

Filesize
13.0MB

MD5
8efb3c68e9d9fd9e8befffed8e2ecba3

SHA1
5d1e8ef7c6a14eeea4a612e1923bc825e26ad5f3

SHA256
ccd2a1b814853286e074069ef664e23708b1d99e87735957002e51993dd4ba1e

SHA512
dfa5874bffc2c5bd5f2839f1f503e87ac7db14b75c7be2d248c23186772ebec115840111d6dcb5e3e5941d00f7d4704ac766c31d8f37f5fd8dc3dacc0f379ecc

Download Submit
memory/2752-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2752-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2752-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2752-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2752-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2840-15-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3032-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3032-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3032-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3032-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/3032-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3032-1-0x0000000000530000-0x0000000000630000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads