tofsee | c86717330a6dfb3825e59949a7b2e0ebff1b6b5395469d7926fbced459fcae31

General

Target

2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe
Size

10.7MB
MD5

64ea5d2cd647f5fa0796149604546779
SHA1

6f18925551190be17f9551f2627107e6fcea32b6
SHA256

c86717330a6dfb3825e59949a7b2e0ebff1b6b5395469d7926fbced459fcae31
SHA512

c4b5745999dd31a539a00ac41508d8565ac332d252632249ded4c4ad282e5fb3516fe6445f613a8cd2f8cb43d5f571e1e948207fd3b89fad0bd00c069c7a19c6
SSDEEP

3072:ULBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/3:ROMdRQr7OB0ypmMXnl8XEPM3noSWOCq

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
3344	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\fikpynsd\ImagePath = "C:\\Windows\\SysWOW64\\fikpynsd\\vhgufpxr.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-1-5-21-2211717155-842865201-3404093980-1000\Control Panel\International\Geo\Nation	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe

Deletes itself 1 IoCs

pid	Process
3588	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
884	vhgufpxr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 884 set thread context of 3588	884	vhgufpxr.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
4336	sc.exe
1692	sc.exe
1544	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
3936	3968	WerFault.exe	82
4808	884	WerFault.exe	98

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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vhgufpxr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3968 wrote to memory of 4044	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	88
PID 3968 wrote to memory of 4044	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	88
PID 3968 wrote to memory of 4044	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	88
PID 3968 wrote to memory of 2008	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	90
PID 3968 wrote to memory of 2008	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	90
PID 3968 wrote to memory of 2008	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	90
PID 3968 wrote to memory of 4336	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	92
PID 3968 wrote to memory of 4336	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	92
PID 3968 wrote to memory of 4336	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	92
PID 3968 wrote to memory of 1692	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	94
PID 3968 wrote to memory of 1692	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	94
PID 3968 wrote to memory of 1692	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	94
PID 3968 wrote to memory of 1544	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	96
PID 3968 wrote to memory of 1544	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	96
PID 3968 wrote to memory of 1544	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	96
PID 3968 wrote to memory of 3344	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	99
PID 3968 wrote to memory of 3344	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	99
PID 3968 wrote to memory of 3344	3968	2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe	99
PID 884 wrote to memory of 3588	884	vhgufpxr.exe	105
PID 884 wrote to memory of 3588	884	vhgufpxr.exe	105
PID 884 wrote to memory of 3588	884	vhgufpxr.exe	105
PID 884 wrote to memory of 3588	884	vhgufpxr.exe	105
PID 884 wrote to memory of 3588	884	vhgufpxr.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3968
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fikpynsd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vhgufpxr.exe" C:\Windows\SysWOW64\fikpynsd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fikpynsd binPath= "C:\Windows\SysWOW64\fikpynsd\vhgufpxr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4336
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fikpynsd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fikpynsd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1544
- 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:3344
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3968 -s 1296
  2⤵
  - Program crash
  PID:3936

C:\Windows\SysWOW64\fikpynsd\vhgufpxr.exe
C:\Windows\SysWOW64\fikpynsd\vhgufpxr.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-04_64ea5d2cd647f5fa0796149604546779_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:884
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3588
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 884 -s 512
  2⤵
  - Program crash
  PID:4808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3968 -ip 3968
1⤵
PID:432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 884 -ip 884
1⤵
PID:4156

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

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Downloads

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

Filesize
14.2MB

MD5
b89c1bd9181792ad61c5159a46393832

SHA1
f522ccf95f82e6795eb993edbebe87211225d0ad

SHA256
de547e9d0d604b0097d302062c998abc57675c2f51d68a99ccbdfbf87d00fb97

SHA512
94a632e27fc41003e15e80c3c13e37d0ef5a07cceb9dbffdfeb757bc1afb9afeae632f08a6b68f3053317015858ecb515c637eb457ad1f24efc443adce071641

Download Submit
memory/884-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/884-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/884-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/884-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3588-14-0x0000000000E70000-0x0000000000E85000-memory.dmp

Filesize
84KB

Download
memory/3588-16-0x0000000000E70000-0x0000000000E85000-memory.dmp

Filesize
84KB

Download
memory/3588-17-0x0000000000E70000-0x0000000000E85000-memory.dmp

Filesize
84KB

Download
memory/3968-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/3968-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3968-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3968-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/3968-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3968-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads