tofsee | 34fa1ec69a9bf956160c9ebcd19f5fa1cb856f92a4f06148682d150a8a2a4417

General

Target

2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe
Size

12.2MB
MD5

b0af9ab857da603db7f5ca223f96ec20
SHA1

4d8ddfddc599382819c03d96fc1050adbb76b56f
SHA256

34fa1ec69a9bf956160c9ebcd19f5fa1cb856f92a4f06148682d150a8a2a4417
SHA512

20c7598e64398fb8da3303079ede0edd792a962af8da52de5685c48656e14124a07379f47c5b52b57f6d3993601d885ebbff71bfb012b57e7575f31f33efdab7
SSDEEP

393216:IXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX3:

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
2992	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\gxhqbvob\ImagePath = "C:\\Windows\\SysWOW64\\gxhqbvob\\enhmedyu.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-1-5-21-70482961-775596374-3727440602-1000\Control Panel\International\Geo\Nation	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe

Deletes itself 1 IoCs

pid	Process
4436	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3532	enhmedyu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3532 set thread context of 4436	3532	enhmedyu.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
3288	sc.exe
220	sc.exe
3588	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	enhmedyu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4160 wrote to memory of 4020	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	86
PID 4160 wrote to memory of 4020	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	86
PID 4160 wrote to memory of 4020	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	86
PID 4160 wrote to memory of 3928	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	88
PID 4160 wrote to memory of 3928	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	88
PID 4160 wrote to memory of 3928	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	88
PID 4160 wrote to memory of 3288	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	90
PID 4160 wrote to memory of 3288	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	90
PID 4160 wrote to memory of 3288	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	90
PID 4160 wrote to memory of 220	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	92
PID 4160 wrote to memory of 220	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	92
PID 4160 wrote to memory of 220	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	92
PID 4160 wrote to memory of 3588	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	94
PID 4160 wrote to memory of 3588	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	94
PID 4160 wrote to memory of 3588	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	94
PID 3532 wrote to memory of 4436	3532	enhmedyu.exe	97
PID 3532 wrote to memory of 4436	3532	enhmedyu.exe	97
PID 3532 wrote to memory of 4436	3532	enhmedyu.exe	97
PID 3532 wrote to memory of 4436	3532	enhmedyu.exe	97
PID 3532 wrote to memory of 4436	3532	enhmedyu.exe	97
PID 4160 wrote to memory of 2992	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	98
PID 4160 wrote to memory of 2992	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	98
PID 4160 wrote to memory of 2992	4160	2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4160
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gxhqbvob\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4020
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\enhmedyu.exe" C:\Windows\SysWOW64\gxhqbvob\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3928
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gxhqbvob binPath= "C:\Windows\SysWOW64\gxhqbvob\enhmedyu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3288
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gxhqbvob "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:220
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gxhqbvob
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3588
- 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:2992

C:\Windows\SysWOW64\gxhqbvob\enhmedyu.exe
C:\Windows\SysWOW64\gxhqbvob\enhmedyu.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_b0af9ab857da603db7f5ca223f96ec20_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3532
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4436

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

Loading Replay Monitor...

Downloads

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

Filesize
14.2MB

MD5
39a9cf1d9bd23918d653fda8cd2c5922

SHA1
bfd9aa31f2f0c11ac87f549d31c04e657bfcce60

SHA256
2923bbb66bcaabfcc61b9b406f77aff581bbb57dc69ff98ab4141cc10a8108b9

SHA512
e1db1966e2ead688de7d2809e56bbe0e7fe9d57db4c57d9b3f897317381f162084dce61b03f5bdbeda02d9034edb6d432e4bbc79a89a4054abf475613dc4b96a

Download Submit
memory/3532-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3532-15-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3532-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3532-10-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4160-20-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4160-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4160-19-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download
memory/4160-1-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/4160-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4160-16-0x00000000005E0000-0x00000000006E0000-memory.dmp

Filesize
1024KB

Download
memory/4160-2-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download
memory/4436-18-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/4436-11-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/4436-21-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/4436-22-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/4436-23-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads