tofsee | e2679cbb1ef3e09480268cb51f3e9b10947e19fdf15fb951629f83b8097f1533

General

Target

2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe
Size

14.1MB
MD5

24a8c7936e334ee7ab9ff26103ac6b25
SHA1

02650252a3393d59ee832c4ff28fdabb22a21f9c
SHA256

e2679cbb1ef3e09480268cb51f3e9b10947e19fdf15fb951629f83b8097f1533
SHA512

3ba123dd0c3dbeb8d88bf1bc129e40459a25da0e5d7e5d9b3c1db3d08995ba4c615aecad4bc5655c59a7a1ee096bd9ab58c12eb5e6f5ac9b7049a4f071f463a1
SSDEEP

24576:LpomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttV:doo

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

pid	Process
4424	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\psjronmn\ImagePath = "C:\\Windows\\SysWOW64\\psjronmn\\mdzgxwae.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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe

Deletes itself 1 IoCs

pid	Process
3380	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4048	mdzgxwae.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4048 set thread context of 3380	4048	mdzgxwae.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
2504	sc.exe
312	sc.exe
4904	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2316	1040	WerFault.exe	82
348	4048	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	sc.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
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	mdzgxwae.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1040 wrote to memory of 536	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	84
PID 1040 wrote to memory of 536	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	84
PID 1040 wrote to memory of 536	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	84
PID 1040 wrote to memory of 992	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	86
PID 1040 wrote to memory of 992	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	86
PID 1040 wrote to memory of 992	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	86
PID 1040 wrote to memory of 312	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	88
PID 1040 wrote to memory of 312	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	88
PID 1040 wrote to memory of 312	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	88
PID 1040 wrote to memory of 4904	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	90
PID 1040 wrote to memory of 4904	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	90
PID 1040 wrote to memory of 4904	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	90
PID 1040 wrote to memory of 2504	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	92
PID 1040 wrote to memory of 2504	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	92
PID 1040 wrote to memory of 2504	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	92
PID 1040 wrote to memory of 4424	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	95
PID 1040 wrote to memory of 4424	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	95
PID 1040 wrote to memory of 4424	1040	2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe	95
PID 4048 wrote to memory of 3380	4048	mdzgxwae.exe	101
PID 4048 wrote to memory of 3380	4048	mdzgxwae.exe	101
PID 4048 wrote to memory of 3380	4048	mdzgxwae.exe	101
PID 4048 wrote to memory of 3380	4048	mdzgxwae.exe	101
PID 4048 wrote to memory of 3380	4048	mdzgxwae.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1040
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\psjronmn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:536
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mdzgxwae.exe" C:\Windows\SysWOW64\psjronmn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:992
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create psjronmn binPath= "C:\Windows\SysWOW64\psjronmn\mdzgxwae.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:312
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description psjronmn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4904
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start psjronmn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2504
- 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:4424
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1040 -s 1036
  2⤵
  - Program crash
  PID:2316

C:\Windows\SysWOW64\psjronmn\mdzgxwae.exe
C:\Windows\SysWOW64\psjronmn\mdzgxwae.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-19_24a8c7936e334ee7ab9ff26103ac6b25_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4048
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3380
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 516
  2⤵
  - Program crash
  PID:348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1040 -ip 1040
1⤵
PID:1540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4048 -ip 4048
1⤵
PID:2848

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
12.6MB

MD5
db1a4de9ac468c7beaa367616d2e928b

SHA1
cffc0988e3f202a37c937ab86485fd173d987110

SHA256
5a4f4643669afe174a77d97007e813f6f057e41e53a7fe37378fb2d5ae95bdf1

SHA512
d306df56e533d35dbc8666b2be08dffb000039358136aa1561df223dd14ee2eb4f1170fb5857145f087f21e0eb00c4e01f60d3b2e41907daaddab6ab16dd2bb9

Download Submit
memory/1040-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/1040-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1040-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/1040-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1040-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1040-1-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/3380-14-0x0000000000320000-0x0000000000335000-memory.dmp

Filesize
84KB

Download
memory/3380-16-0x0000000000320000-0x0000000000335000-memory.dmp

Filesize
84KB

Download
memory/3380-17-0x0000000000320000-0x0000000000335000-memory.dmp

Filesize
84KB

Download
memory/4048-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4048-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4048-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4048-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads