tofsee | e1f07793a0019b5919df7f8a0d921b543215e882fbaeddd59454788c2a63b8da

Analysis

max time kernel
144s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-01-2025 21:23

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General

Target

2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe
Size

13.4MB
MD5

07fd85a206bfeac8bb76245b7e16680a
SHA1

2453b2c048f4ae7fd52fd0feba91ea60582c2b7a
SHA256

e1f07793a0019b5919df7f8a0d921b543215e882fbaeddd59454788c2a63b8da
SHA512

5ec198bae21579d5b638e13f7699166a84c06a0d806eba4085d80d81d1da9a5670dc4c8ff4e5cf6092782e9c3285719880571c5603cb0c9bece90bee133eb6c3
SSDEEP

393216:kXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:

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\xzrgmcxp = "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
1760	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\xzrgmcxp\ImagePath = "C:\\Windows\\SysWOW64\\xzrgmcxp\\rrsdyzxf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1396	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2600	rrsdyzxf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2600 set thread context of 1396	2600	rrsdyzxf.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2560	sc.exe
2588	sc.exe
1528	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	rrsdyzxf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.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	sc.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 2816	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	30
PID 1268 wrote to memory of 2816	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	30
PID 1268 wrote to memory of 2816	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	30
PID 1268 wrote to memory of 2816	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	30
PID 1268 wrote to memory of 2996	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	32
PID 1268 wrote to memory of 2996	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	32
PID 1268 wrote to memory of 2996	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	32
PID 1268 wrote to memory of 2996	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	32
PID 1268 wrote to memory of 2560	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	34
PID 1268 wrote to memory of 2560	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	34
PID 1268 wrote to memory of 2560	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	34
PID 1268 wrote to memory of 2560	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	34
PID 1268 wrote to memory of 2588	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	36
PID 1268 wrote to memory of 2588	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	36
PID 1268 wrote to memory of 2588	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	36
PID 1268 wrote to memory of 2588	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	36
PID 1268 wrote to memory of 1528	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	38
PID 1268 wrote to memory of 1528	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	38
PID 1268 wrote to memory of 1528	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	38
PID 1268 wrote to memory of 1528	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	38
PID 1268 wrote to memory of 1760	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	41
PID 1268 wrote to memory of 1760	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	41
PID 1268 wrote to memory of 1760	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	41
PID 1268 wrote to memory of 1760	1268	2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe	41
PID 2600 wrote to memory of 1396	2600	rrsdyzxf.exe	43
PID 2600 wrote to memory of 1396	2600	rrsdyzxf.exe	43
PID 2600 wrote to memory of 1396	2600	rrsdyzxf.exe	43
PID 2600 wrote to memory of 1396	2600	rrsdyzxf.exe	43
PID 2600 wrote to memory of 1396	2600	rrsdyzxf.exe	43
PID 2600 wrote to memory of 1396	2600	rrsdyzxf.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xzrgmcxp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rrsdyzxf.exe" C:\Windows\SysWOW64\xzrgmcxp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2996
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xzrgmcxp binPath= "C:\Windows\SysWOW64\xzrgmcxp\rrsdyzxf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2560
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xzrgmcxp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2588
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xzrgmcxp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1528
- 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:1760

C:\Windows\SysWOW64\xzrgmcxp\rrsdyzxf.exe
C:\Windows\SysWOW64\xzrgmcxp\rrsdyzxf.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_07fd85a206bfeac8bb76245b7e16680a_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2600
- 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:1396

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\rrsdyzxf.exe

Filesize
12.8MB

MD5
7e5d4a380902eaf8af41b35794f77598

SHA1
78c3b66390f3ccf387d373da58acccdd8863963b

SHA256
58058b9d294ad281124f9962e665d0b455ea18e0e0e27ec83b2a21f18dcee338

SHA512
c1a9add992d6b1a812bdd23854d81c6f00ff3b0f6a8fb1bcd6775149a3665db1b2971a38f3b034b5c52faaf1687962adfa6a557ee1eb0381d0d33f48ad02f948

Download Submit
memory/1268-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1268-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1268-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1268-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1268-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1268-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/1396-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1396-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1396-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1396-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1396-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2600-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads