tofsee | a34fc505581c9d2d8792539af0035776ff2010b061560cc5551844cd927d2733

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
01-02-2025 19:51

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General

Target

2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe
Size

15.0MB
MD5

0e4cf35ce4e14fa62e86c323da9aa4ca
SHA1

2f61f468f6adf7d5849b7635d125a6fd2c4fbb0a
SHA256

a34fc505581c9d2d8792539af0035776ff2010b061560cc5551844cd927d2733
SHA512

a48d0311381a78ced1dd0c5d1548d83b51d3caa42564124a8bab2c07e3c75ce0c90c50207df4d4a4454138ac4197cb2f3fc5f8f4c36ec47763630edfc7b7e780
SSDEEP

24576:NEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZh:2fot

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\jfmzstni = "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
2248	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\jfmzstni\ImagePath = "C:\\Windows\\SysWOW64\\jfmzstni\\gaarclce.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2628	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2196	gaarclce.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2196 set thread context of 2628	2196	gaarclce.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2408	sc.exe
2292	sc.exe
2200	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	gaarclce.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	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_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	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 2120	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	28
PID 2868 wrote to memory of 2120	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	28
PID 2868 wrote to memory of 2120	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	28
PID 2868 wrote to memory of 2120	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	28
PID 2868 wrote to memory of 1648	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	30
PID 2868 wrote to memory of 1648	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	30
PID 2868 wrote to memory of 1648	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	30
PID 2868 wrote to memory of 1648	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	30
PID 2868 wrote to memory of 2408	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	32
PID 2868 wrote to memory of 2408	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	32
PID 2868 wrote to memory of 2408	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	32
PID 2868 wrote to memory of 2408	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	32
PID 2868 wrote to memory of 2292	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	34
PID 2868 wrote to memory of 2292	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	34
PID 2868 wrote to memory of 2292	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	34
PID 2868 wrote to memory of 2292	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	34
PID 2868 wrote to memory of 2200	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	36
PID 2868 wrote to memory of 2200	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	36
PID 2868 wrote to memory of 2200	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	36
PID 2868 wrote to memory of 2200	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	36
PID 2868 wrote to memory of 2248	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	39
PID 2868 wrote to memory of 2248	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	39
PID 2868 wrote to memory of 2248	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	39
PID 2868 wrote to memory of 2248	2868	2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe	39
PID 2196 wrote to memory of 2628	2196	gaarclce.exe	41
PID 2196 wrote to memory of 2628	2196	gaarclce.exe	41
PID 2196 wrote to memory of 2628	2196	gaarclce.exe	41
PID 2196 wrote to memory of 2628	2196	gaarclce.exe	41
PID 2196 wrote to memory of 2628	2196	gaarclce.exe	41
PID 2196 wrote to memory of 2628	2196	gaarclce.exe	41

C:\Users\Admin\AppData\Local\Temp\2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jfmzstni\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2120
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gaarclce.exe" C:\Windows\SysWOW64\jfmzstni\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1648
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jfmzstni binPath= "C:\Windows\SysWOW64\jfmzstni\gaarclce.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2408
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jfmzstni "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2292
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jfmzstni
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2200
- 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:2248

C:\Windows\SysWOW64\jfmzstni\gaarclce.exe
C:\Windows\SysWOW64\jfmzstni\gaarclce.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_0e4cf35ce4e14fa62e86c323da9aa4ca_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2196
- 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:2628

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\gaarclce.exe

Filesize
10.9MB

MD5
a74cc34669dd5c177b65f2874941cc53

SHA1
1308f2e3bdba27a1b1731301ef860b40ac70e5fe

SHA256
a40b20beaa8190151c13c3b7476600c3cf9c008242669b5481d19aa13a3a0a40

SHA512
6fee78acb58a6ef3d85631a84e010a83db29f2f4b0b12fdcc534d558f3fb612526c4c37b0aa8894ce1da84ebbbf6ac7d2410b65068295f923aa885b8a0e078e7

Download Submit
memory/2196-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2628-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2628-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2628-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2628-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2628-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2868-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2868-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2868-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2868-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2868-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2868-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads