tofsee | 95a6da773a66bee3c82e02f1823fbf567bda773845b7f8a22fec24574c36d08f

General

Target

2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe
Size

11.7MB
MD5

fe2a6350634d4ec53d6940cabcdb6c70
SHA1

c5ca60481439fdcf3c189173861246fc3df51c2e
SHA256

95a6da773a66bee3c82e02f1823fbf567bda773845b7f8a22fec24574c36d08f
SHA512

7e5415bb6a9025394bd35fdab07cfd0eb7e88815263c1c7b4fe0cea621235444d0c3dc19090d00a8da8fdf1642e84a392b6d1e73efcb4006ced82d6dc361a171
SSDEEP

24576:06WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ/:ZWdLQk

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
1720	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\kelviiz\ImagePath = "C:\\Windows\\SysWOW64\\kelviiz\\uoofqzqs.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe

Deletes itself 1 IoCs

pid	Process
2884	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4712	uoofqzqs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4712 set thread context of 2884	4712	uoofqzqs.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
3664	sc.exe
1164	sc.exe
4060	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4208	4828	WerFault.exe	82
5064	4712	WerFault.exe	94

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uoofqzqs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4828 wrote to memory of 3840	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	84
PID 4828 wrote to memory of 3840	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	84
PID 4828 wrote to memory of 3840	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	84
PID 4828 wrote to memory of 1984	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	86
PID 4828 wrote to memory of 1984	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	86
PID 4828 wrote to memory of 1984	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	86
PID 4828 wrote to memory of 3664	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	88
PID 4828 wrote to memory of 3664	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	88
PID 4828 wrote to memory of 3664	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	88
PID 4828 wrote to memory of 1164	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	90
PID 4828 wrote to memory of 1164	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	90
PID 4828 wrote to memory of 1164	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	90
PID 4828 wrote to memory of 4060	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	92
PID 4828 wrote to memory of 4060	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	92
PID 4828 wrote to memory of 4060	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	92
PID 4828 wrote to memory of 1720	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	95
PID 4828 wrote to memory of 1720	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	95
PID 4828 wrote to memory of 1720	4828	2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe	95
PID 4712 wrote to memory of 2884	4712	uoofqzqs.exe	107
PID 4712 wrote to memory of 2884	4712	uoofqzqs.exe	107
PID 4712 wrote to memory of 2884	4712	uoofqzqs.exe	107
PID 4712 wrote to memory of 2884	4712	uoofqzqs.exe	107
PID 4712 wrote to memory of 2884	4712	uoofqzqs.exe	107

C:\Users\Admin\AppData\Local\Temp\2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4828
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kelviiz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3840
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uoofqzqs.exe" C:\Windows\SysWOW64\kelviiz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1984
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kelviiz binPath= "C:\Windows\SysWOW64\kelviiz\uoofqzqs.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3664
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kelviiz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1164
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kelviiz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4060
- 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:1720
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4828 -s 1028
  2⤵
  - Program crash
  PID:4208

C:\Windows\SysWOW64\kelviiz\uoofqzqs.exe
C:\Windows\SysWOW64\kelviiz\uoofqzqs.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4712
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2884
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4712 -s 560
  2⤵
  - Program crash
  PID:5064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4828 -ip 4828
1⤵
PID:592

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4712 -ip 4712
1⤵
PID:1920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\uoofqzqs.exe

Filesize
13.0MB

MD5
6ac1bc3868243a03211fadad63f67193

SHA1
758e9b06d401251b17bec94972ecbe3a72760723

SHA256
41db8331698dc22b9b4811382d3065f0b304f2f11436ec64e3fcf588f880ebbb

SHA512
3a20a951a7800f538b879542d1620d2132e29d6cd441a02bd14aae9b22a82d8687752b0c48b16785dd086151aa0f79d44d9e82729557a53a981ca356b3073be5

Download Submit
memory/2884-14-0x0000000001260000-0x0000000001275000-memory.dmp

Filesize
84KB

Download
memory/2884-16-0x0000000001260000-0x0000000001275000-memory.dmp

Filesize
84KB

Download
memory/2884-17-0x0000000001260000-0x0000000001275000-memory.dmp

Filesize
84KB

Download
memory/4712-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4712-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4712-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4712-19-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4828-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4828-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4828-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4828-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4828-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4828-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads