tofsee | cb91e1fdec2e73cac56f31d34efe5f8ce8612d83d6478a57eb5a8fa0acce3acd

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-01-2025 07:37

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General

Target

2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe
Size

11.5MB
MD5

7c90e1699a20035eb73f3dc5d0ea3132
SHA1

bd217fc8671a899c3e20e6c53b483b69359be720
SHA256

cb91e1fdec2e73cac56f31d34efe5f8ce8612d83d6478a57eb5a8fa0acce3acd
SHA512

b5ad5003b6744b58696789cbe41a23f2b64c09cccbb085d93685b29edf715927ff467d872e0b819d42567c6770293442b205e60d41f181441a6e3f6e50b74f70
SSDEEP

3072:8LBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:ZOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\lfjdlsld = "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
1992	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\lfjdlsld\ImagePath = "C:\\Windows\\SysWOW64\\lfjdlsld\\prkvckyo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2920	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2784	prkvckyo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2784 set thread context of 2920	2784	prkvckyo.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2812	sc.exe
1504	sc.exe
2280	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	prkvckyo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 2572	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	30
PID 2224 wrote to memory of 2572	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	30
PID 2224 wrote to memory of 2572	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	30
PID 2224 wrote to memory of 2572	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	30
PID 2224 wrote to memory of 2468	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	32
PID 2224 wrote to memory of 2468	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	32
PID 2224 wrote to memory of 2468	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	32
PID 2224 wrote to memory of 2468	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	32
PID 2224 wrote to memory of 2812	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	34
PID 2224 wrote to memory of 2812	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	34
PID 2224 wrote to memory of 2812	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	34
PID 2224 wrote to memory of 2812	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	34
PID 2224 wrote to memory of 1504	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	36
PID 2224 wrote to memory of 1504	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	36
PID 2224 wrote to memory of 1504	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	36
PID 2224 wrote to memory of 1504	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	36
PID 2224 wrote to memory of 2280	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	38
PID 2224 wrote to memory of 2280	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	38
PID 2224 wrote to memory of 2280	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	38
PID 2224 wrote to memory of 2280	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	38
PID 2784 wrote to memory of 2920	2784	prkvckyo.exe	41
PID 2784 wrote to memory of 2920	2784	prkvckyo.exe	41
PID 2784 wrote to memory of 2920	2784	prkvckyo.exe	41
PID 2784 wrote to memory of 2920	2784	prkvckyo.exe	41
PID 2784 wrote to memory of 2920	2784	prkvckyo.exe	41
PID 2784 wrote to memory of 2920	2784	prkvckyo.exe	41
PID 2224 wrote to memory of 1992	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	42
PID 2224 wrote to memory of 1992	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	42
PID 2224 wrote to memory of 1992	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	42
PID 2224 wrote to memory of 1992	2224	2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lfjdlsld\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2572
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\prkvckyo.exe" C:\Windows\SysWOW64\lfjdlsld\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2468
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lfjdlsld binPath= "C:\Windows\SysWOW64\lfjdlsld\prkvckyo.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lfjdlsld "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1504
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lfjdlsld
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2280
- 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:1992

C:\Windows\SysWOW64\lfjdlsld\prkvckyo.exe
C:\Windows\SysWOW64\lfjdlsld\prkvckyo.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-24_7c90e1699a20035eb73f3dc5d0ea3132_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2784
- 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:2920

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\prkvckyo.exe

Filesize
13.4MB

MD5
1fcd2e6eecce8b701eae5e04a2d8ab7e

SHA1
629a1037d360be65f1d32095b9c6474fd17e930d

SHA256
36b034de7584ab1a997062168a327768b209753901ec172c2451d9ee4bb88f9c

SHA512
4ab8c8d961b45e78dda4eec7a84b23df9bb2f1e4b69a83646d33c61f055633faf0e63526b730fcc452d18301bd813597819bcb0a0022eee50d0d5d57f7dddb86

Download Submit
memory/2224-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2224-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2224-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2224-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2224-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/2224-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2784-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2920-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2920-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2920-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2920-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2920-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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