tofsee | 9574a9f69ddd18f7857877c02cc38a6ac7f5a227f678c7510973921f9c621420

Analysis

max time kernel
147s
max time network
122s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
26/01/2025, 18:31

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General

Target

2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe
Size

13.0MB
MD5

7ca394a6c3fb23cf15f764ea44959924
SHA1

489dc2c85200cd32d3a87c7c2d52710a770bf359
SHA256

9574a9f69ddd18f7857877c02cc38a6ac7f5a227f678c7510973921f9c621420
SHA512

bbf01aa88235c59d9a5e15ea063554ea4bf370b215939d88f56bd935506a3c196468512a783b87abe0ebd6caa2048ec27af38413f7a419262b15a36bc2c10951
SSDEEP

24576:FEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZn:Ofot

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\rcyjlpni = "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
2808	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\rcyjlpni\ImagePath = "C:\\Windows\\SysWOW64\\rcyjlpni\\aixbomvv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2828	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2936	aixbomvv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2936 set thread context of 2828	2936	aixbomvv.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2856	sc.exe
2504	sc.exe
2880	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aixbomvv.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 2164	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	29
PID 2376 wrote to memory of 2164	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	29
PID 2376 wrote to memory of 2164	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	29
PID 2376 wrote to memory of 2164	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	29
PID 2376 wrote to memory of 1260	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	31
PID 2376 wrote to memory of 1260	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	31
PID 2376 wrote to memory of 1260	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	31
PID 2376 wrote to memory of 1260	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	31
PID 2376 wrote to memory of 2856	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	33
PID 2376 wrote to memory of 2856	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	33
PID 2376 wrote to memory of 2856	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	33
PID 2376 wrote to memory of 2856	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	33
PID 2376 wrote to memory of 2504	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	35
PID 2376 wrote to memory of 2504	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	35
PID 2376 wrote to memory of 2504	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	35
PID 2376 wrote to memory of 2504	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	35
PID 2376 wrote to memory of 2880	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	37
PID 2376 wrote to memory of 2880	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	37
PID 2376 wrote to memory of 2880	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	37
PID 2376 wrote to memory of 2880	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	37
PID 2376 wrote to memory of 2808	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	40
PID 2376 wrote to memory of 2808	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	40
PID 2376 wrote to memory of 2808	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	40
PID 2376 wrote to memory of 2808	2376	2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe	40
PID 2936 wrote to memory of 2828	2936	aixbomvv.exe	42
PID 2936 wrote to memory of 2828	2936	aixbomvv.exe	42
PID 2936 wrote to memory of 2828	2936	aixbomvv.exe	42
PID 2936 wrote to memory of 2828	2936	aixbomvv.exe	42
PID 2936 wrote to memory of 2828	2936	aixbomvv.exe	42
PID 2936 wrote to memory of 2828	2936	aixbomvv.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rcyjlpni\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2164
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\aixbomvv.exe" C:\Windows\SysWOW64\rcyjlpni\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1260
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rcyjlpni binPath= "C:\Windows\SysWOW64\rcyjlpni\aixbomvv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2856
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rcyjlpni "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2504
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rcyjlpni
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2880
- 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:2808

C:\Windows\SysWOW64\rcyjlpni\aixbomvv.exe
C:\Windows\SysWOW64\rcyjlpni\aixbomvv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2936
- 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:2828

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\aixbomvv.exe

Filesize
10.3MB

MD5
882eda7c41c79dcc37dff83d801a82ba

SHA1
1a952a98cfd27e82f39fd6a3497eddffb339215e

SHA256
79b5a4ef25c83aab277628e91ef3bc260bea6ffbbea52c11ff5e8f308a708705

SHA512
e3a3e74d6275de6b0e814f6313a6cac4efff5aa597edf4c16de044c2b69d0a82d9caf34d08c06c338bcca1183d1cc9c706145685452fb32a0ef1e435c51ec6e5

Download Submit
memory/2376-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2376-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2376-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2376-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2376-9-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/2376-1-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/2376-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2828-12-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2828-19-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2936-16-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads