tofsee | 0f17baf51ebbbf3f788e8c409a8f02c0cafe0284228452465aa2b0ba8667e617

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
03-02-2025 20:54

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General

Target

2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe
Size

14.9MB
MD5

28cae9a9cb20f84f30a95ad6bfdf9dab
SHA1

9e76569721170f7351f13c1e3e5207d18e858f30
SHA256

0f17baf51ebbbf3f788e8c409a8f02c0cafe0284228452465aa2b0ba8667e617
SHA512

7ec421f95b2e962c852086573f60d2beac6cbcbbdad5dc4d7237c0414cbd21ec25bee1dcdc6f9171fceb0180068857b6d079f26f659994ca6f3ddef8a88b52b3
SSDEEP

393216:cXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:

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\fhijfwms = "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
1612	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\fhijfwms\ImagePath = "C:\\Windows\\SysWOW64\\fhijfwms\\jrgkxvee.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1604	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2080	jrgkxvee.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2080 set thread context of 1604	2080	jrgkxvee.exe	39

Launches sc.exe 3 IoCs

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

pid	Process
2076	sc.exe
1752	sc.exe
1664	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	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.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
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	jrgkxvee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 884	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	28
PID 2904 wrote to memory of 884	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	28
PID 2904 wrote to memory of 884	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	28
PID 2904 wrote to memory of 884	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	28
PID 2904 wrote to memory of 1748	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	30
PID 2904 wrote to memory of 1748	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	30
PID 2904 wrote to memory of 1748	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	30
PID 2904 wrote to memory of 1748	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	30
PID 2904 wrote to memory of 1664	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	32
PID 2904 wrote to memory of 1664	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	32
PID 2904 wrote to memory of 1664	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	32
PID 2904 wrote to memory of 1664	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	32
PID 2904 wrote to memory of 2076	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	34
PID 2904 wrote to memory of 2076	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	34
PID 2904 wrote to memory of 2076	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	34
PID 2904 wrote to memory of 2076	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	34
PID 2904 wrote to memory of 1752	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	36
PID 2904 wrote to memory of 1752	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	36
PID 2904 wrote to memory of 1752	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	36
PID 2904 wrote to memory of 1752	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	36
PID 2080 wrote to memory of 1604	2080	jrgkxvee.exe	39
PID 2080 wrote to memory of 1604	2080	jrgkxvee.exe	39
PID 2080 wrote to memory of 1604	2080	jrgkxvee.exe	39
PID 2080 wrote to memory of 1604	2080	jrgkxvee.exe	39
PID 2080 wrote to memory of 1604	2080	jrgkxvee.exe	39
PID 2080 wrote to memory of 1604	2080	jrgkxvee.exe	39
PID 2904 wrote to memory of 1612	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	40
PID 2904 wrote to memory of 1612	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	40
PID 2904 wrote to memory of 1612	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	40
PID 2904 wrote to memory of 1612	2904	2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe	40

C:\Users\Admin\AppData\Local\Temp\2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fhijfwms\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:884
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jrgkxvee.exe" C:\Windows\SysWOW64\fhijfwms\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fhijfwms binPath= "C:\Windows\SysWOW64\fhijfwms\jrgkxvee.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1664
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fhijfwms "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2076
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fhijfwms
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1752
- 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:1612

C:\Windows\SysWOW64\fhijfwms\jrgkxvee.exe
C:\Windows\SysWOW64\fhijfwms\jrgkxvee.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_28cae9a9cb20f84f30a95ad6bfdf9dab_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2080
- 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:1604

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\jrgkxvee.exe

Filesize
14.7MB

MD5
56faaa2cf997e08154e26ca9088b1f0d

SHA1
1b27e9fcc44cf532d018c551d1ffcdd29ffb8970

SHA256
b1f20f76401d87c4350f47291bdd1dab2c1b1b881ac5e78a6f1fb8a8504e2794

SHA512
4fca4d4bde47907acab663452cec9e4f8f839574a1a33d51f3e369678b98eb9c717cc7ce44a2f5019784a69705720db43a44094400e5844aad0580e7ceb94040

Download Submit
memory/1604-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1604-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1604-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1604-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1604-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2080-13-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2904-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2904-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2904-1-0x00000000008C0000-0x00000000009C0000-memory.dmp

Filesize
1024KB

Download
memory/2904-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2904-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2904-14-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads