tofsee | 1bef5da76b7f21d9c2783f1f6c26d91ef56e48a8e87c074ddcdbdd4eefafc085

Analysis

max time kernel
145s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-01-2025 19:00

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General

Target

2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe
Size

14.2MB
MD5

2913be07cd898b6f938c6c78bc6b17c7
SHA1

aeef3c0d05dfcca2db6e6488ad90b20950f3fd42
SHA256

1bef5da76b7f21d9c2783f1f6c26d91ef56e48a8e87c074ddcdbdd4eefafc085
SHA512

57328db21f5d2ae41c10e78c3c116a49c943aaae89b3a436e582301bdbd7c8470b62c6a44d1c2a04ef2693a5094b0830ac6a930323c7f9f574d4c27c4dcd810d
SSDEEP

24576:e6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQg:PWdLQk

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\ybzkcrvm = "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
2640	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\ybzkcrvm\ImagePath = "C:\\Windows\\SysWOW64\\ybzkcrvm\\qkkbmvmo.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2692	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2684	qkkbmvmo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2684 set thread context of 2692	2684	qkkbmvmo.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
2624	sc.exe
2676	sc.exe
2764	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	qkkbmvmo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 2956	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	31
PID 1980 wrote to memory of 2956	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	31
PID 1980 wrote to memory of 2956	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	31
PID 1980 wrote to memory of 2956	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	31
PID 1980 wrote to memory of 2440	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	33
PID 1980 wrote to memory of 2440	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	33
PID 1980 wrote to memory of 2440	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	33
PID 1980 wrote to memory of 2440	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	33
PID 1980 wrote to memory of 2624	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	35
PID 1980 wrote to memory of 2624	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	35
PID 1980 wrote to memory of 2624	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	35
PID 1980 wrote to memory of 2624	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	35
PID 1980 wrote to memory of 2676	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	37
PID 1980 wrote to memory of 2676	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	37
PID 1980 wrote to memory of 2676	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	37
PID 1980 wrote to memory of 2676	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	37
PID 1980 wrote to memory of 2764	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	39
PID 1980 wrote to memory of 2764	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	39
PID 1980 wrote to memory of 2764	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	39
PID 1980 wrote to memory of 2764	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	39
PID 1980 wrote to memory of 2640	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	42
PID 1980 wrote to memory of 2640	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	42
PID 1980 wrote to memory of 2640	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	42
PID 1980 wrote to memory of 2640	1980	2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe	42
PID 2684 wrote to memory of 2692	2684	qkkbmvmo.exe	44
PID 2684 wrote to memory of 2692	2684	qkkbmvmo.exe	44
PID 2684 wrote to memory of 2692	2684	qkkbmvmo.exe	44
PID 2684 wrote to memory of 2692	2684	qkkbmvmo.exe	44
PID 2684 wrote to memory of 2692	2684	qkkbmvmo.exe	44
PID 2684 wrote to memory of 2692	2684	qkkbmvmo.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ybzkcrvm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2956
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qkkbmvmo.exe" C:\Windows\SysWOW64\ybzkcrvm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2440
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ybzkcrvm binPath= "C:\Windows\SysWOW64\ybzkcrvm\qkkbmvmo.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ybzkcrvm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2676
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ybzkcrvm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2764
- 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:2640

C:\Windows\SysWOW64\ybzkcrvm\qkkbmvmo.exe
C:\Windows\SysWOW64\ybzkcrvm\qkkbmvmo.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-13_2913be07cd898b6f938c6c78bc6b17c7_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- 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:2692

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\qkkbmvmo.exe

Filesize
14.2MB

MD5
182cbeac95acb0d197b4529be7319211

SHA1
1d473a590e2eb3afb836232ee32a8722c0ba2da8

SHA256
82bd95f0139ef2b6123b7c995298ec037118fe29107ff92d0e37c6db025ec5bb

SHA512
7f0f3a77c6eb4bfe94e6f68118ea829ad231e21a8400579a1533bc8f05097e4c5a7760f0c371599f2148c492869c4fa9f890edccb6dee7597167d45eff44ab18

Download Submit
memory/1980-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1980-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1980-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1980-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1980-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1980-1-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/2684-15-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2692-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2692-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2692-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2692-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2692-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2692-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads