tofsee | c48a3ee393cda9d8bcc9f3a44a7628bf1bd5178ff8d857c2c2ce6be0513261dc

General

Target

2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe
Size

10.6MB
MD5

85c1e10e542ad801f7673f32b752b6c9
SHA1

7e7f558016b1537ccea503ba65ed045bc0c9bc9d
SHA256

c48a3ee393cda9d8bcc9f3a44a7628bf1bd5178ff8d857c2c2ce6be0513261dc
SHA512

a99f2a1c1e4cfb8b84b56eea353cc84aa82611499cb296b6cccebd8be59aa81225c02dbadee99aed1b0684922d0808c60e9d053869cccb00d408bb512b467363
SSDEEP

3072:lLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:IOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
4060	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\lwyggkqf\ImagePath = "C:\\Windows\\SysWOW64\\lwyggkqf\\usbclhws.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe

Deletes itself 1 IoCs

pid	Process
2876	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1900	usbclhws.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1900 set thread context of 2876	1900	usbclhws.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
3280	sc.exe
3556	sc.exe
1700	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3296	4500	WerFault.exe	81
5020	1900	WerFault.exe	92

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	svchost.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	usbclhws.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4500 wrote to memory of 3392	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	82
PID 4500 wrote to memory of 3392	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	82
PID 4500 wrote to memory of 3392	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	82
PID 4500 wrote to memory of 2688	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	84
PID 4500 wrote to memory of 2688	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	84
PID 4500 wrote to memory of 2688	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	84
PID 4500 wrote to memory of 3280	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	86
PID 4500 wrote to memory of 3280	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	86
PID 4500 wrote to memory of 3280	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	86
PID 4500 wrote to memory of 3556	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	88
PID 4500 wrote to memory of 3556	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	88
PID 4500 wrote to memory of 3556	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	88
PID 4500 wrote to memory of 1700	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	90
PID 4500 wrote to memory of 1700	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	90
PID 4500 wrote to memory of 1700	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	90
PID 4500 wrote to memory of 4060	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	93
PID 4500 wrote to memory of 4060	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	93
PID 4500 wrote to memory of 4060	4500	2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe	93
PID 1900 wrote to memory of 2876	1900	usbclhws.exe	102
PID 1900 wrote to memory of 2876	1900	usbclhws.exe	102
PID 1900 wrote to memory of 2876	1900	usbclhws.exe	102
PID 1900 wrote to memory of 2876	1900	usbclhws.exe	102
PID 1900 wrote to memory of 2876	1900	usbclhws.exe	102

C:\Users\Admin\AppData\Local\Temp\2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4500
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lwyggkqf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3392
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\usbclhws.exe" C:\Windows\SysWOW64\lwyggkqf\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lwyggkqf binPath= "C:\Windows\SysWOW64\lwyggkqf\usbclhws.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3280
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lwyggkqf "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3556
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lwyggkqf
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1700
- 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:4060
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4500 -s 652
  2⤵
  - Program crash
  PID:3296

C:\Windows\SysWOW64\lwyggkqf\usbclhws.exe
C:\Windows\SysWOW64\lwyggkqf\usbclhws.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-27_85c1e10e542ad801f7673f32b752b6c9_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1900
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1900 -s 512
  2⤵
  - Program crash
  PID:5020

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4500 -ip 4500
1⤵
PID:3060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1900 -ip 1900
1⤵
PID:2460

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\usbclhws.exe

Filesize
13.5MB

MD5
9d96d9c5193edd88a9d0186b176ce37c

SHA1
2bb0f83db1e961217eaf2c4a9ffbf638fd9e22e8

SHA256
996e55ff7dfab4bdc3cd2bd847658ac6da3c5a1e8634e5e9d0e64bcb784ea52b

SHA512
d254a77387342070434f346f52faf1cb5ceca3df4d6331eb558685704f180774ad64be410923db6cba0c30978df07cd40e50f99bb85fd7d98e836300c367f8bb

Download Submit
memory/1900-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1900-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1900-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1900-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2876-14-0x0000000000970000-0x0000000000985000-memory.dmp

Filesize
84KB

Download
memory/2876-16-0x0000000000970000-0x0000000000985000-memory.dmp

Filesize
84KB

Download
memory/2876-17-0x0000000000970000-0x0000000000985000-memory.dmp

Filesize
84KB

Download
memory/4500-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/4500-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4500-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4500-1-0x0000000000720000-0x0000000000820000-memory.dmp

Filesize
1024KB

Download
memory/4500-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4500-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads