tofsee | 30a6c437aa251a5ab2437b6c3b7c18c34540958c67cf8ac86a186afda3f606f0

General

Target

2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe
Size

14.5MB
MD5

fb5e347a7f72b8e2387d6bed2d513aa8
SHA1

a05f978100a23685599ec91d29da0cdedb9250bf
SHA256

30a6c437aa251a5ab2437b6c3b7c18c34540958c67cf8ac86a186afda3f606f0
SHA512

ab11c42049f2c07f155273133f34295a37b2c1f01866d82696f81d4027378aa727e6f8251fe93d61652b94609a64b540083cd28a767e2563d935701a609b1c41
SSDEEP

3072:lLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:IOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
50	1544	Process not Found

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4856	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\exlvuqhd\ImagePath = "C:\\Windows\\SysWOW64\\exlvuqhd\\xkwtmzeo.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-1-5-21-705198581-2062733989-3666524522-1000\Control Panel\International\Geo\Nation	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe

Deletes itself 1 IoCs

pid	Process
3976	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4224	xkwtmzeo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4224 set thread context of 3976	4224	xkwtmzeo.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
3284	sc.exe
1812	sc.exe
1128	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4924	3104	WerFault.exe	85
3704	4224	WerFault.exe	99

System Location Discovery: System Language Discovery 1 TTPs 10 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	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xkwtmzeo.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.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

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4148	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3104 wrote to memory of 628	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	89
PID 3104 wrote to memory of 628	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	89
PID 3104 wrote to memory of 628	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	89
PID 3104 wrote to memory of 4748	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	91
PID 3104 wrote to memory of 4748	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	91
PID 3104 wrote to memory of 4748	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	91
PID 3104 wrote to memory of 3284	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	93
PID 3104 wrote to memory of 3284	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	93
PID 3104 wrote to memory of 3284	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	93
PID 3104 wrote to memory of 1812	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	95
PID 3104 wrote to memory of 1812	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	95
PID 3104 wrote to memory of 1812	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	95
PID 3104 wrote to memory of 1128	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	97
PID 3104 wrote to memory of 1128	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	97
PID 3104 wrote to memory of 1128	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	97
PID 3104 wrote to memory of 4856	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	100
PID 3104 wrote to memory of 4856	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	100
PID 3104 wrote to memory of 4856	3104	2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe	100
PID 4224 wrote to memory of 3976	4224	xkwtmzeo.exe	105
PID 4224 wrote to memory of 3976	4224	xkwtmzeo.exe	105
PID 4224 wrote to memory of 3976	4224	xkwtmzeo.exe	105
PID 4224 wrote to memory of 3976	4224	xkwtmzeo.exe	105
PID 4224 wrote to memory of 3976	4224	xkwtmzeo.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3104
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\exlvuqhd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:628
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xkwtmzeo.exe" C:\Windows\SysWOW64\exlvuqhd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create exlvuqhd binPath= "C:\Windows\SysWOW64\exlvuqhd\xkwtmzeo.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3284
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description exlvuqhd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start exlvuqhd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1128
- 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:4856
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3104 -s 640
  2⤵
  - Program crash
  PID:4924

C:\Windows\SysWOW64\exlvuqhd\xkwtmzeo.exe
C:\Windows\SysWOW64\exlvuqhd\xkwtmzeo.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_fb5e347a7f72b8e2387d6bed2d513aa8_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4224
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4224 -s 512
  2⤵
  - Program crash
  PID:3704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3104 -ip 3104
1⤵
PID:1968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4224 -ip 4224
1⤵
PID:4944

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB1cGRhdGVyPSJPbWFoYSIgdXBkYXRlcnZlcnNpb249IjEuMy4xOTUuNDMiIHNoZWxsX3ZlcnNpb249IjEuMy4xOTUuNDMiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7N0MzNjU2Q0UtQTJGNy00QkM4LTgzREEtMjZCRDM1MjI4NTc2fSIgdXNlcmlkPSJ7NTg3N0FGQTAtQjdGQi00RTc5LTkwOTUtN0I5OUJEQzVEN0RDfSIgaW5zdGFsbHNvdXJjZT0ibGltaXRlZCIgcmVxdWVzdGlkPSJ7Mjc4QTI5MDUtOUE1NS00NkEwLUIzNDAtQUQ5QTZCQUY0QkE4fSIgZGVkdXA9ImNyIiBkb21haW5qb2luZWQ9IjAiPjxodyBsb2dpY2FsX2NwdXM9IjIiIHBoeXNtZW1vcnk9IjQiIGRpc2tfdHlwZT0iMiIgc3NlPSIxIiBzc2UyPSIxIiBzc2UzPSIxIiBzc3NlMz0iMSIgc3NlNDE9IjEiIHNzZTQyPSIxIiBhdng9IjEiLz48b3MgcGxhdGZvcm09IndpbiIgdmVyc2lvbj0iMTAuMC4xOTA0MS4xMjg4IiBzcD0iIiBhcmNoPSJ4NjQiIHByb2R1Y3RfdHlwZT0iNDgiIGlzX3dpcD0iMCIgaXNfaW5fbG9ja2Rvd25fbW9kZT0iMCIvPjxvZW0gcHJvZHVjdF9tYW51ZmFjdHVyZXI9IiIgcHJvZHVjdF9uYW1lPSIiLz48ZXhwIGV0YWc9IiZxdW90O0UreGJBejZZNnNVMTI4OWJTNnFsNFZSTGJramZCVUdUTUpzanJIcjQ0aUk9JnF1b3Q7Ii8-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU4NjAiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODIxNjMwOTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MDQ4NDU3ODIxIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4148

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
11.4MB

MD5
d51fd8e8f433d85d933e62990eb819af

SHA1
b49fe6b66d23ea9bd1424cb75bad42e66e02a7ae

SHA256
0a989e661758647c4077d778d2c874a24467659d28cde023807072cefa48e58e

SHA512
c785e80799987b71080c260bdc5d3a873cbd13c5241ebd914b6ff5af4d30a577976a7b63a1334035b6b2816998cd014e81260016b1141f81ece6143667481328

Download Submit
memory/3104-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3104-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3104-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/3104-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3104-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/3104-1-0x0000000000710000-0x0000000000810000-memory.dmp

Filesize
1024KB

Download
memory/3976-13-0x00000000008C0000-0x00000000008D5000-memory.dmp

Filesize
84KB

Download
memory/3976-16-0x00000000008C0000-0x00000000008D5000-memory.dmp

Filesize
84KB

Download
memory/3976-17-0x00000000008C0000-0x00000000008D5000-memory.dmp

Filesize
84KB

Download
memory/4224-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4224-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4224-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads