tofsee | ac37be5711de20cc3dc8083e7cb353a3b142c49855d407a95d7492c44c59aa74

Analysis

max time kernel
144s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-01-2025 19:07

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General

Target

2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe
Size

12.5MB
MD5

479a4e5f3194140652f6aed2b1b8d282
SHA1

3c76a31492c9ff4018bfb79bc93d83eaf347ba68
SHA256

ac37be5711de20cc3dc8083e7cb353a3b142c49855d407a95d7492c44c59aa74
SHA512

cadd328420e04973fb536a2a9d9c463dadffb4a73398ad5826aa6b21065fc205724b2e023358e47668d7ee11519cccb1f624432dd552b277f831025ba2264adc
SSDEEP

49152:1qE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:1qtYc3

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\erjopjta = "0"	svchost.exe

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
2244	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\erjopjta\ImagePath = "C:\\Windows\\SysWOW64\\erjopjta\\cyqqncbp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2572	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1936	cyqqncbp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1936 set thread context of 2572	1936	cyqqncbp.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
1256	sc.exe
2416	sc.exe
1996	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cyqqncbp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2916 wrote to memory of 2260	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	28
PID 2916 wrote to memory of 2260	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	28
PID 2916 wrote to memory of 2260	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	28
PID 2916 wrote to memory of 2260	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	28
PID 2916 wrote to memory of 2304	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	30
PID 2916 wrote to memory of 2304	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	30
PID 2916 wrote to memory of 2304	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	30
PID 2916 wrote to memory of 2304	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	30
PID 2916 wrote to memory of 1996	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	32
PID 2916 wrote to memory of 1996	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	32
PID 2916 wrote to memory of 1996	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	32
PID 2916 wrote to memory of 1996	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	32
PID 2916 wrote to memory of 1256	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	34
PID 2916 wrote to memory of 1256	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	34
PID 2916 wrote to memory of 1256	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	34
PID 2916 wrote to memory of 1256	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	34
PID 2916 wrote to memory of 2416	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	36
PID 2916 wrote to memory of 2416	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	36
PID 2916 wrote to memory of 2416	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	36
PID 2916 wrote to memory of 2416	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	36
PID 2916 wrote to memory of 2244	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	39
PID 2916 wrote to memory of 2244	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	39
PID 2916 wrote to memory of 2244	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	39
PID 2916 wrote to memory of 2244	2916	2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe	39
PID 1936 wrote to memory of 2572	1936	cyqqncbp.exe	41
PID 1936 wrote to memory of 2572	1936	cyqqncbp.exe	41
PID 1936 wrote to memory of 2572	1936	cyqqncbp.exe	41
PID 1936 wrote to memory of 2572	1936	cyqqncbp.exe	41
PID 1936 wrote to memory of 2572	1936	cyqqncbp.exe	41
PID 1936 wrote to memory of 2572	1936	cyqqncbp.exe	41

C:\Users\Admin\AppData\Local\Temp\2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\erjopjta\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2260
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cyqqncbp.exe" C:\Windows\SysWOW64\erjopjta\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2304
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create erjopjta binPath= "C:\Windows\SysWOW64\erjopjta\cyqqncbp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1996
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description erjopjta "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1256
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start erjopjta
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2416
- 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:2244

C:\Windows\SysWOW64\erjopjta\cyqqncbp.exe
C:\Windows\SysWOW64\erjopjta\cyqqncbp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-22_479a4e5f3194140652f6aed2b1b8d282_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
13.7MB

MD5
bb4ce6997466b8fda2246b04edd06463

SHA1
0fb5f3cb1c4b9ba841f5f6e11756ac2f7380251b

SHA256
e4d1f970d321b81f0cd0a2813c6ea2ae0ac3241be8674bed3256c9abcdfb8178

SHA512
20291f3ace94980b4b7dca906a86d5017482ddeb5e9f78fdf513453049ed7c0c7dc2abd4343d1257bc1acc578598ccc89691ac564d8b37e8cb6af14b2f735d63

Download Submit
memory/1936-17-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2572-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2572-14-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2572-16-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2572-11-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2572-18-0x0000000000090000-0x00000000000A5000-memory.dmp

Filesize
84KB

Download
memory/2916-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2916-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2916-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2916-7-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2916-1-0x0000000002F70000-0x0000000003070000-memory.dmp

Filesize
1024KB

Download
memory/2916-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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