tofsee | 19544edd81e75d23b18c75b84e4e2147423eb2d4a1817b390162e2f93e155e18

Analysis

max time kernel
143s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-01-2025 19:49

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General

Target

2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe
Size

12.8MB
MD5

cddf3c9c81e287280e20bd8c6ba80e09
SHA1

19de6dffffcf20bf0c959e055746965661eedcb5
SHA256

19544edd81e75d23b18c75b84e4e2147423eb2d4a1817b390162e2f93e155e18
SHA512

65caf2ef1f5eb833ea417de8e69c1b93ae0489fce0c6d469a49bc6033aabd451712168fd4653bec3ed94d4cbc95068aba8b2db3258e753299cf6852769b4dbb9
SSDEEP

6144:eLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQI:PTYe+D2jFu+iZoUFhAz

Score

10^/10

tofsee discovery evasion 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

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\xdntuciv = "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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2672	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\xdntuciv\ImagePath = "C:\\Windows\\SysWOW64\\xdntuciv\\sfrohuzj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2568	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2696	sfrohuzj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2696 set thread context of 2568	2696	sfrohuzj.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2684	sc.exe
2792	sc.exe
2408	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_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	sfrohuzj.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 2312 wrote to memory of 1740	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	31
PID 2312 wrote to memory of 1740	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	31
PID 2312 wrote to memory of 1740	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	31
PID 2312 wrote to memory of 1740	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	31
PID 2312 wrote to memory of 2300	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	33
PID 2312 wrote to memory of 2300	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	33
PID 2312 wrote to memory of 2300	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	33
PID 2312 wrote to memory of 2300	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	33
PID 2312 wrote to memory of 2408	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	35
PID 2312 wrote to memory of 2408	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	35
PID 2312 wrote to memory of 2408	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	35
PID 2312 wrote to memory of 2408	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	35
PID 2312 wrote to memory of 2684	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	37
PID 2312 wrote to memory of 2684	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	37
PID 2312 wrote to memory of 2684	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	37
PID 2312 wrote to memory of 2684	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	37
PID 2312 wrote to memory of 2792	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	39
PID 2312 wrote to memory of 2792	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	39
PID 2312 wrote to memory of 2792	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	39
PID 2312 wrote to memory of 2792	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	39
PID 2312 wrote to memory of 2672	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	42
PID 2312 wrote to memory of 2672	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	42
PID 2312 wrote to memory of 2672	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	42
PID 2312 wrote to memory of 2672	2312	2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe	42
PID 2696 wrote to memory of 2568	2696	sfrohuzj.exe	44
PID 2696 wrote to memory of 2568	2696	sfrohuzj.exe	44
PID 2696 wrote to memory of 2568	2696	sfrohuzj.exe	44
PID 2696 wrote to memory of 2568	2696	sfrohuzj.exe	44
PID 2696 wrote to memory of 2568	2696	sfrohuzj.exe	44
PID 2696 wrote to memory of 2568	2696	sfrohuzj.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xdntuciv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1740
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sfrohuzj.exe" C:\Windows\SysWOW64\xdntuciv\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2300
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create xdntuciv binPath= "C:\Windows\SysWOW64\xdntuciv\sfrohuzj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2408
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description xdntuciv "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start xdntuciv
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2792
- 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:2672

C:\Windows\SysWOW64\xdntuciv\sfrohuzj.exe
C:\Windows\SysWOW64\xdntuciv\sfrohuzj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-18_cddf3c9c81e287280e20bd8c6ba80e09_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2696
- 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:2568

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\sfrohuzj.exe

Filesize
11.5MB

MD5
02295830e2ba18cfa7007f6cf06d29f9

SHA1
953518a2468055eb821acf0b5fda093755c878ce

SHA256
84b68dfa7af61adce46f1a562c15fdb6946918178cb232647cf1e27f99f80965

SHA512
a58ebf7858082c11c7b32bae6f81595cdd91ccf185cf1bc381c604fa120a7db3c3cdee019c30ed8d07c925ddc7be916ca4c176d93081f5c19313a1c274cd34d1

Download Submit
memory/2312-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2312-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2312-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2312-7-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2312-9-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/2312-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/2312-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2568-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2568-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2568-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2568-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2568-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2696-16-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads