tofsee | d5e651b38925b1b4b78855763b6c32835fad21aa11855cb96001a7d1eb2937fe

General

Target

2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe
Size

13.5MB
MD5

861e7f93d3c3d79d24b078e4374b973d
SHA1

3a70ea015c1aba48c3e285ed694a65e822af1d30
SHA256

d5e651b38925b1b4b78855763b6c32835fad21aa11855cb96001a7d1eb2937fe
SHA512

f8f73f705d3be465857becb4e44d4fec07afcd16bb0dbbae4d80b99f3c2b096740e644f7332c59ead8f9a557b5d43f82c3c21fe010e9d3ae22542176bdbec029
SSDEEP

49152:FVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGH:FVdrl/9zG

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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

Processes:

netsh.exe

pid process

1036 netsh.exe

pid	process
1036	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\nneunex\ImagePath = "C:\\Windows\\SysWOW64\\nneunex\\mvnmvhlc.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

468 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

mvnmvhlc.exe

pid process

3332 mvnmvhlc.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

mvnmvhlc.exe

description pid process target process

PID 3332 set thread context of 468 3332 mvnmvhlc.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2752 sc.exe
1624 sc.exe
4112 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
468	svchost.exe

pid	process
3332	mvnmvhlc.exe

description	pid	process	target process
PID 3332 set thread context of 468	3332	mvnmvhlc.exe	svchost.exe

pid	process
2752	sc.exe
1624	sc.exe
4112	sc.exe

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

Processes:

netsh.exe

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

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

940 1328 WerFault.exe 2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe
5076 3332 WerFault.exe mvnmvhlc.exe

pid	pid_target	process	target process
940	1328	WerFault.exe	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe
5076	3332	WerFault.exe	mvnmvhlc.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

Processes:

sc.exesc.exesc.exenetsh.exemvnmvhlc.exesvchost.exe2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.execmd.execmd.exe

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mvnmvhlc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exemvnmvhlc.exe

description	pid	process	target process
PID 1328 wrote to memory of 3476	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	cmd.exe
PID 1328 wrote to memory of 3476	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	cmd.exe
PID 1328 wrote to memory of 3476	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	cmd.exe
PID 1328 wrote to memory of 728	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	cmd.exe
PID 1328 wrote to memory of 728	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	cmd.exe
PID 1328 wrote to memory of 728	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	cmd.exe
PID 1328 wrote to memory of 2752	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 1328 wrote to memory of 2752	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 1328 wrote to memory of 2752	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 1328 wrote to memory of 1624	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 1328 wrote to memory of 1624	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 1328 wrote to memory of 1624	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 1328 wrote to memory of 4112	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 1328 wrote to memory of 4112	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 1328 wrote to memory of 4112	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	sc.exe
PID 1328 wrote to memory of 1036	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	netsh.exe
PID 1328 wrote to memory of 1036	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	netsh.exe
PID 1328 wrote to memory of 1036	1328	2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe	netsh.exe
PID 3332 wrote to memory of 468	3332	mvnmvhlc.exe	svchost.exe
PID 3332 wrote to memory of 468	3332	mvnmvhlc.exe	svchost.exe
PID 3332 wrote to memory of 468	3332	mvnmvhlc.exe	svchost.exe
PID 3332 wrote to memory of 468	3332	mvnmvhlc.exe	svchost.exe
PID 3332 wrote to memory of 468	3332	mvnmvhlc.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1328
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nneunex\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3476
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mvnmvhlc.exe" C:\Windows\SysWOW64\nneunex\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:728
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nneunex binPath= "C:\Windows\SysWOW64\nneunex\mvnmvhlc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nneunex "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nneunex
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4112
- 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:1036
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1328 -s 1244
  2⤵
  - Program crash
  PID:940

C:\Windows\SysWOW64\nneunex\mvnmvhlc.exe
C:\Windows\SysWOW64\nneunex\mvnmvhlc.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-10_861e7f93d3c3d79d24b078e4374b973d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3332
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:468
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3332 -s 528
  2⤵
  - Program crash
  PID:5076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1328 -ip 1328
1⤵
PID:2800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3332 -ip 3332
1⤵
PID:4160

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\mvnmvhlc.exe

Filesize
14.2MB

MD5
a987a67cabf0fbb557a2b688ab18277b

SHA1
79552931ef7d98f3890da4e0a774f93411bf05f4

SHA256
de0b927fa89f8dac57f90f4cc765444dd40b2fabd3192198ea79838a7c11b51a

SHA512
493ae58ffb108235067b7d637f51b5595e47a86657abc73efc9f29c55ebf70923f647deda08613f63db4a3867b1033477180bc2a5738fea0df827eb6c20d6443

Download Submit
memory/468-14-0x00000000002F0000-0x0000000000305000-memory.dmp

Filesize
84KB

Download
memory/468-17-0x00000000002F0000-0x0000000000305000-memory.dmp

Filesize
84KB

Download
memory/468-16-0x00000000002F0000-0x0000000000305000-memory.dmp

Filesize
84KB

Download
memory/1328-8-0x00000000007C0000-0x00000000007D3000-memory.dmp

Filesize
76KB

Download
memory/1328-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1328-1-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/1328-7-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/1328-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1328-2-0x00000000007C0000-0x00000000007D3000-memory.dmp

Filesize
76KB

Download
memory/3332-11-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3332-13-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3332-12-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3332-19-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads