tofsee | ac2dbc87f1ab034db4bf8ff17f8497df23f198c8fc76e397a05137cbd768cb87

General

Target

2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe
Size

10.8MB
MD5

ca8ee4733e7ba78b415231884f389a1b
SHA1

74754a1e264173cfdf792bcb0c9457d10ff7e2a7
SHA256

ac2dbc87f1ab034db4bf8ff17f8497df23f198c8fc76e397a05137cbd768cb87
SHA512

b472b23c4564247fa06807a70c94b779646e3089754cb564d277e23681620e0115ce3cbd7a737648ebb40ee3f9a9f3985c5bd510d8077f18a8de4ea3a1e1edf8
SSDEEP

49152:/LFuiE8888888888888888888888888888888888888888888888888888888883:/LM

Score

10^/10

tofsee discovery evasion 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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4284	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\pedxzmso\ImagePath = "C:\\Windows\\SysWOW64\\pedxzmso\\fncgtraa.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe

Deletes itself 1 IoCs

pid	Process
3548	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4436	fncgtraa.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4436 set thread context of 3548	4436	fncgtraa.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
548	sc.exe
2904	sc.exe
3384	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	fncgtraa.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	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4660 wrote to memory of 3968	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	84
PID 4660 wrote to memory of 3968	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	84
PID 4660 wrote to memory of 3968	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	84
PID 4660 wrote to memory of 1812	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	86
PID 4660 wrote to memory of 1812	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	86
PID 4660 wrote to memory of 1812	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	86
PID 4660 wrote to memory of 548	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	88
PID 4660 wrote to memory of 548	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	88
PID 4660 wrote to memory of 548	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	88
PID 4660 wrote to memory of 2904	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	90
PID 4660 wrote to memory of 2904	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	90
PID 4660 wrote to memory of 2904	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	90
PID 4660 wrote to memory of 3384	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	93
PID 4660 wrote to memory of 3384	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	93
PID 4660 wrote to memory of 3384	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	93
PID 4660 wrote to memory of 4284	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	96
PID 4660 wrote to memory of 4284	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	96
PID 4660 wrote to memory of 4284	4660	2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe	96
PID 4436 wrote to memory of 3548	4436	fncgtraa.exe	98
PID 4436 wrote to memory of 3548	4436	fncgtraa.exe	98
PID 4436 wrote to memory of 3548	4436	fncgtraa.exe	98
PID 4436 wrote to memory of 3548	4436	fncgtraa.exe	98
PID 4436 wrote to memory of 3548	4436	fncgtraa.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4660
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pedxzmso\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3968
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fncgtraa.exe" C:\Windows\SysWOW64\pedxzmso\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pedxzmso binPath= "C:\Windows\SysWOW64\pedxzmso\fncgtraa.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:548
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pedxzmso "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2904
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pedxzmso
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3384
- 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:4284

C:\Windows\SysWOW64\pedxzmso\fncgtraa.exe
C:\Windows\SysWOW64\pedxzmso\fncgtraa.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-15_ca8ee4733e7ba78b415231884f389a1b_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4436
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3548

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\fncgtraa.exe

Filesize
14.0MB

MD5
e420639e928141fb52e3e7fadc0dbc29

SHA1
ea45e1fd71e302a70f2f84d6fde8d99527070e64

SHA256
a920480bd38fe3e88cdc91dce7e3b736e3416d5e3d0e62cf6bc82962f4e5271a

SHA512
d0d6389052dd39c1016acb39e49f5b7952dedabbfd3861a3ff29b9f007cd2b1c7dd608013d2f3f3dcd5e47294948d7f94795d0fe3b1669e54191b544202e4b63

Download Submit
memory/3548-11-0x0000000000150000-0x0000000000165000-memory.dmp

Filesize
84KB

Download
memory/3548-13-0x0000000000150000-0x0000000000165000-memory.dmp

Filesize
84KB

Download
memory/3548-15-0x0000000000150000-0x0000000000165000-memory.dmp

Filesize
84KB

Download
memory/4436-14-0x0000000000400000-0x0000000002DBF000-memory.dmp

Filesize
41.7MB

Download
memory/4660-1-0x0000000003000000-0x0000000003100000-memory.dmp

Filesize
1024KB

Download
memory/4660-2-0x0000000002E00000-0x0000000002E13000-memory.dmp

Filesize
76KB

Download
memory/4660-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4660-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4660-8-0x0000000002E00000-0x0000000002E13000-memory.dmp

Filesize
76KB

Download
memory/4660-7-0x0000000000400000-0x0000000002DBF000-memory.dmp

Filesize
41.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads