tofsee | 7af4167a7e387b421f0f87368d51f7924e983b2e245ad75566ec5b20b3417936

General

Target

2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe
Size

11.2MB
MD5

1ceb07b6b28d81b0d1a0292f641d3e34
SHA1

eb3b5aacc5f62f82a0cffd4ebd487b4729335f89
SHA256

7af4167a7e387b421f0f87368d51f7924e983b2e245ad75566ec5b20b3417936
SHA512

d3cc0b7b67b1022c729024f9e7bde8b3b2e8d62c870539eb33e85dac24f6daa06b9d7227516d6c9dafb652df4fee03a7212be96957ba6dbe3d959fc8e2443962
SSDEEP

3072:mLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:POMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
2360	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\cyvdchgz\ImagePath = "C:\\Windows\\SysWOW64\\cyvdchgz\\uqiifuth.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-1-5-21-70482961-775596374-3727440602-1000\Control Panel\International\Geo\Nation	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe

Deletes itself 1 IoCs

pid	Process
3632	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2900	uqiifuth.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2900 set thread context of 3632	2900	uqiifuth.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
5040	sc.exe
4424	sc.exe
5036	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
4024	3244	WerFault.exe	82
2976	2900	WerFault.exe	96

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	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_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	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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uqiifuth.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3244 wrote to memory of 3424	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	86
PID 3244 wrote to memory of 3424	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	86
PID 3244 wrote to memory of 3424	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	86
PID 3244 wrote to memory of 2232	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	88
PID 3244 wrote to memory of 2232	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	88
PID 3244 wrote to memory of 2232	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	88
PID 3244 wrote to memory of 4424	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	90
PID 3244 wrote to memory of 4424	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	90
PID 3244 wrote to memory of 4424	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	90
PID 3244 wrote to memory of 5036	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	92
PID 3244 wrote to memory of 5036	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	92
PID 3244 wrote to memory of 5036	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	92
PID 3244 wrote to memory of 5040	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	94
PID 3244 wrote to memory of 5040	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	94
PID 3244 wrote to memory of 5040	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	94
PID 3244 wrote to memory of 2360	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	97
PID 3244 wrote to memory of 2360	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	97
PID 3244 wrote to memory of 2360	3244	2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe	97
PID 2900 wrote to memory of 3632	2900	uqiifuth.exe	102
PID 2900 wrote to memory of 3632	2900	uqiifuth.exe	102
PID 2900 wrote to memory of 3632	2900	uqiifuth.exe	102
PID 2900 wrote to memory of 3632	2900	uqiifuth.exe	102
PID 2900 wrote to memory of 3632	2900	uqiifuth.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3244
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cyvdchgz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3424
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uqiifuth.exe" C:\Windows\SysWOW64\cyvdchgz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2232
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create cyvdchgz binPath= "C:\Windows\SysWOW64\cyvdchgz\uqiifuth.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4424
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description cyvdchgz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start cyvdchgz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5040
- 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:2360
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3244 -s 1208
  2⤵
  - Program crash
  PID:4024

C:\Windows\SysWOW64\cyvdchgz\uqiifuth.exe
C:\Windows\SysWOW64\cyvdchgz\uqiifuth.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_1ceb07b6b28d81b0d1a0292f641d3e34_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2900
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2900 -s 508
  2⤵
  - Program crash
  PID:2976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3244 -ip 3244
1⤵
PID:3888

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2900 -ip 2900
1⤵
PID:3560

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\uqiifuth.exe

Filesize
11.4MB

MD5
cb3721569c16ee2e86f25b292c2712e3

SHA1
f207b515e5a27be73d0232479d8ca894de09edd7

SHA256
c0322d1e6a2f7a627545575301ad777bd8b476ea791c6bac85f9f1035e09dbd6

SHA512
9f8559bb8cbaa275cf1f9649b6f9a2fae86190ce0ce8a72c85cf34e2bb64699430af8eb3afc3d8cc76fb831f49983beff12f953d51c21003b30152a58b41d84b

Download Submit
memory/2900-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2900-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2900-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2900-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3244-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3244-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/3244-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3244-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3244-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/3244-1-0x0000000000680000-0x0000000000780000-memory.dmp

Filesize
1024KB

Download
memory/3632-14-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/3632-16-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download
memory/3632-17-0x0000000000F60000-0x0000000000F75000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads