tofsee | 65746616ce1a98e6c66240aed7eafafc1b00d11b8abbee7dc6adcc8d36d8aebf

Analysis

max time kernel
143s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-01-2025 09:29

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General

Target

2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe
Size

11.9MB
MD5

55b2bf14613a4eaba102c56e35b48354
SHA1

40e400f46bdc4dab10f8e8c98af32ffa8fab298e
SHA256

65746616ce1a98e6c66240aed7eafafc1b00d11b8abbee7dc6adcc8d36d8aebf
SHA512

ea8882e8bf71935d65c5313ebad2ae2a8cb48dd32c5b816bf622879c7b33aa391f93eadf8d02113e2d6feba8d1cb9572c24c2170f08bffc291537b650385576f
SSDEEP

3072:HLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/G:eOMdRQr7OB0ypmMXnl8XEPM3noSWOCf

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\oqhrzkqb = "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
2828	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\oqhrzkqb\ImagePath = "C:\\Windows\\SysWOW64\\oqhrzkqb\\kgyyvkjx.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
3020	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1648	kgyyvkjx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1648 set thread context of 3020	1648	kgyyvkjx.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2556	sc.exe
2832	sc.exe
3064	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	2025-01-28_55b2bf14613a4eaba102c56e35b48354_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kgyyvkjx.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 2776	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	30
PID 2384 wrote to memory of 2776	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	30
PID 2384 wrote to memory of 2776	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	30
PID 2384 wrote to memory of 2776	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	30
PID 2384 wrote to memory of 2816	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	32
PID 2384 wrote to memory of 2816	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	32
PID 2384 wrote to memory of 2816	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	32
PID 2384 wrote to memory of 2816	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	32
PID 2384 wrote to memory of 2556	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	34
PID 2384 wrote to memory of 2556	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	34
PID 2384 wrote to memory of 2556	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	34
PID 2384 wrote to memory of 2556	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	34
PID 2384 wrote to memory of 2832	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	36
PID 2384 wrote to memory of 2832	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	36
PID 2384 wrote to memory of 2832	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	36
PID 2384 wrote to memory of 2832	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	36
PID 2384 wrote to memory of 3064	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	38
PID 2384 wrote to memory of 3064	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	38
PID 2384 wrote to memory of 3064	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	38
PID 2384 wrote to memory of 3064	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	38
PID 2384 wrote to memory of 2828	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	41
PID 2384 wrote to memory of 2828	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	41
PID 2384 wrote to memory of 2828	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	41
PID 2384 wrote to memory of 2828	2384	2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe	41
PID 1648 wrote to memory of 3020	1648	kgyyvkjx.exe	43
PID 1648 wrote to memory of 3020	1648	kgyyvkjx.exe	43
PID 1648 wrote to memory of 3020	1648	kgyyvkjx.exe	43
PID 1648 wrote to memory of 3020	1648	kgyyvkjx.exe	43
PID 1648 wrote to memory of 3020	1648	kgyyvkjx.exe	43
PID 1648 wrote to memory of 3020	1648	kgyyvkjx.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oqhrzkqb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kgyyvkjx.exe" C:\Windows\SysWOW64\oqhrzkqb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create oqhrzkqb binPath= "C:\Windows\SysWOW64\oqhrzkqb\kgyyvkjx.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2556
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description oqhrzkqb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start oqhrzkqb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3064
- 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:2828

C:\Windows\SysWOW64\oqhrzkqb\kgyyvkjx.exe
C:\Windows\SysWOW64\oqhrzkqb\kgyyvkjx.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_55b2bf14613a4eaba102c56e35b48354_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1648
- 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:3020

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\kgyyvkjx.exe

Filesize
11.3MB

MD5
dd4115393b022c02d91cb50c17b8040c

SHA1
71caf9af0b3b2d5a038d60ee6f3bf21944065c57

SHA256
49d0f31671593dfbc75f4428c44aada927715bf6be573e1d3d376324d7e3d906

SHA512
3306175b19097e8f296b33495448e40cd2a30940fcd8ec739623801cbcbd1971dbc2f10966f5b845ffd07d56dafdf25d3836a541ccc45bf6f030aba81e60175a

Download Submit
memory/1648-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2384-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2384-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2384-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2384-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2384-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2384-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/3020-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3020-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3020-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/3020-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3020-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads