tofsee | 4788a7c613284b815b02b29660d175a940ed28822171bf0b4f145404b35a8dd2

General

Target

2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe
Size

10.3MB
MD5

5349a8ef8ca967bde36d9261ed712f15
SHA1

cb38207ee1430bc4781a7b2f0d25c3605bea3fa2
SHA256

4788a7c613284b815b02b29660d175a940ed28822171bf0b4f145404b35a8dd2
SHA512

9e558a7835df822e240f690fbfacc7bf94bf94602d43419c3afa6a903d08ec2d0a7985e5537338636bf2950344b5f646cf6fc4c698b2f42b08e5c6ee6d1ec440
SSDEEP

24576:UEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZb:xfot

Score

10^/10

tofsee defense_evasion discovery 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

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4364	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\rrdxujii\ImagePath = "C:\\Windows\\SysWOW64\\rrdxujii\\evryposw.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe

Deletes itself 1 IoCs

pid	Process
1984	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4556	evryposw.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4556 set thread context of 1984	4556	evryposw.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
4916	sc.exe
3220	sc.exe
4068	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5000	4052	WerFault.exe	82
544	4556	WerFault.exe	94

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	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.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	evryposw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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 23 IoCs

description	pid	Process	procid_target
PID 4052 wrote to memory of 1180	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	84
PID 4052 wrote to memory of 1180	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	84
PID 4052 wrote to memory of 1180	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	84
PID 4052 wrote to memory of 1868	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	86
PID 4052 wrote to memory of 1868	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	86
PID 4052 wrote to memory of 1868	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	86
PID 4052 wrote to memory of 4916	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	88
PID 4052 wrote to memory of 4916	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	88
PID 4052 wrote to memory of 4916	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	88
PID 4052 wrote to memory of 3220	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	90
PID 4052 wrote to memory of 3220	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	90
PID 4052 wrote to memory of 3220	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	90
PID 4052 wrote to memory of 4068	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	92
PID 4052 wrote to memory of 4068	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	92
PID 4052 wrote to memory of 4068	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	92
PID 4052 wrote to memory of 4364	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	95
PID 4052 wrote to memory of 4364	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	95
PID 4052 wrote to memory of 4364	4052	2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe	95
PID 4556 wrote to memory of 1984	4556	evryposw.exe	101
PID 4556 wrote to memory of 1984	4556	evryposw.exe	101
PID 4556 wrote to memory of 1984	4556	evryposw.exe	101
PID 4556 wrote to memory of 1984	4556	evryposw.exe	101
PID 4556 wrote to memory of 1984	4556	evryposw.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rrdxujii\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\evryposw.exe" C:\Windows\SysWOW64\rrdxujii\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1868
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rrdxujii binPath= "C:\Windows\SysWOW64\rrdxujii\evryposw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4916
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rrdxujii "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3220
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rrdxujii
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4068
- 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:4364
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4052 -s 1040
  2⤵
  - Program crash
  PID:5000

C:\Windows\SysWOW64\rrdxujii\evryposw.exe
C:\Windows\SysWOW64\rrdxujii\evryposw.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-25_5349a8ef8ca967bde36d9261ed712f15_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4556
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1984
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 512
  2⤵
  - Program crash
  PID:544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4052 -ip 4052
1⤵
PID:4616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4556 -ip 4556
1⤵
PID:4816

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\evryposw.exe

Filesize
14.3MB

MD5
75e98b46d89d56c7605eebf3cef4d0f7

SHA1
7cc135b2a5719c5382ec67eea85abf64d47bed42

SHA256
f67dbdb23ba550142842bbbec002542c4083758af84c888687f9d5effb8987c9

SHA512
f8ba6ae5686223286f4c335f781487507b817194f9c9ef67fc7ebd58f51c7f799a9c6fcec6eaa80ddaa4c9a14ed52d36e81b4453fe6e793a0486c5929148743d

Download Submit
memory/1984-14-0x0000000000B90000-0x0000000000BA5000-memory.dmp

Filesize
84KB

Download
memory/1984-16-0x0000000000B90000-0x0000000000BA5000-memory.dmp

Filesize
84KB

Download
memory/1984-17-0x0000000000B90000-0x0000000000BA5000-memory.dmp

Filesize
84KB

Download
memory/4052-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4052-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/4052-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4052-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4052-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/4052-1-0x0000000000800000-0x0000000000900000-memory.dmp

Filesize
1024KB

Download
memory/4556-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4556-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4556-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4556-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads