tofsee | 85e53d805fdc69c8dedafa896ceb421bd636a3d94652671768af4fbca7e89ca0

General

Target

2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe
Size

13.9MB
MD5

5d4530f4539414ec9edc8c7af562a62a
SHA1

bf6c1885985e624fa874eb3b7f6ba0ee7a8d786d
SHA256

85e53d805fdc69c8dedafa896ceb421bd636a3d94652671768af4fbca7e89ca0
SHA512

716ef912db4aff47256ae0922ce8e9377feac7336187d511c4c0d1de99a591a97b5e185ab1ac5670cc0be7fe56d083e2c9f3408562fc5d75e2b43f8a1bed3501
SSDEEP

393216:+XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX3:

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
2088	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\vxqjsgdq\ImagePath = "C:\\Windows\\SysWOW64\\vxqjsgdq\\dycukvxv.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	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe

Deletes itself 1 IoCs

pid	Process
2232	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4168	dycukvxv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4168 set thread context of 2232	4168	dycukvxv.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2612	sc.exe
3856	sc.exe
2524	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dycukvxv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1480 wrote to memory of 2420	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	84
PID 1480 wrote to memory of 2420	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	84
PID 1480 wrote to memory of 2420	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	84
PID 1480 wrote to memory of 4380	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	86
PID 1480 wrote to memory of 4380	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	86
PID 1480 wrote to memory of 4380	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	86
PID 1480 wrote to memory of 2524	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	88
PID 1480 wrote to memory of 2524	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	88
PID 1480 wrote to memory of 2524	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	88
PID 1480 wrote to memory of 2612	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	90
PID 1480 wrote to memory of 2612	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	90
PID 1480 wrote to memory of 2612	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	90
PID 1480 wrote to memory of 3856	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	93
PID 1480 wrote to memory of 3856	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	93
PID 1480 wrote to memory of 3856	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	93
PID 1480 wrote to memory of 2088	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	96
PID 1480 wrote to memory of 2088	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	96
PID 1480 wrote to memory of 2088	1480	2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe	96
PID 4168 wrote to memory of 2232	4168	dycukvxv.exe	98
PID 4168 wrote to memory of 2232	4168	dycukvxv.exe	98
PID 4168 wrote to memory of 2232	4168	dycukvxv.exe	98
PID 4168 wrote to memory of 2232	4168	dycukvxv.exe	98
PID 4168 wrote to memory of 2232	4168	dycukvxv.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1480
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vxqjsgdq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2420
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dycukvxv.exe" C:\Windows\SysWOW64\vxqjsgdq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4380
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vxqjsgdq binPath= "C:\Windows\SysWOW64\vxqjsgdq\dycukvxv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vxqjsgdq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2612
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vxqjsgdq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3856
- 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:2088

C:\Windows\SysWOW64\vxqjsgdq\dycukvxv.exe
C:\Windows\SysWOW64\vxqjsgdq\dycukvxv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-11_5d4530f4539414ec9edc8c7af562a62a_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4168
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2232

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\dycukvxv.exe

Filesize
12.8MB

MD5
79d7e336bba61b974164c9fad057c6f0

SHA1
5a2a5470c07854bdf72a9bd7b83585cdc2eba9a5

SHA256
ecb41188ee030d067528710b50374f8ef4edb13e88534631553e3d42dbf71dc8

SHA512
96a2c32a322f15e01df454b44333dba87945cdf0ba4d83fe3d292a615c1a987a8de3605309989b28f092ae4f03e0167df24b4fea315084ae4bbe6f02f395f66e

Download Submit
memory/1480-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1480-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1480-2-0x0000000000890000-0x00000000008A3000-memory.dmp

Filesize
76KB

Download
memory/1480-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1480-9-0x0000000000890000-0x00000000008A3000-memory.dmp

Filesize
76KB

Download
memory/1480-1-0x0000000000460000-0x0000000000560000-memory.dmp

Filesize
1024KB

Download
memory/2232-18-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/2232-14-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/2232-17-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/2232-21-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/2232-22-0x0000000001250000-0x0000000001265000-memory.dmp

Filesize
84KB

Download
memory/4168-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4168-20-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4168-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4168-13-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads