tofsee | 7d38f460701f9a718696f544dd64ac3066ed34dd16e2bcb1badb944cd8240cbb

General

Target

2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe
Size

11.8MB
MD5

82241fee715e83814c3be4f469b41759
SHA1

e871228cd3bcb8ff800689a24bf466ff014d06f9
SHA256

7d38f460701f9a718696f544dd64ac3066ed34dd16e2bcb1badb944cd8240cbb
SHA512

54804b81ddd4d5f85d0adb2b083163131776b898484b51eee413d11dc8b2030f17f0e2227a17f5896e45cf6a15265d8b53ba8d301291d10f1ab5c9842157db3a
SSDEEP

3072:iLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:LOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
2576	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\jdbrihxc\ImagePath = "C:\\Windows\\SysWOW64\\jdbrihxc\\zuyqgrtr.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe

Deletes itself 1 IoCs

pid	Process
3912	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1384	zuyqgrtr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1384 set thread context of 3912	1384	zuyqgrtr.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
2268	sc.exe
1588	sc.exe
1428	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
1936	2648	WerFault.exe	82
4352	1384	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	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	zuyqgrtr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 5072	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	84
PID 2648 wrote to memory of 5072	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	84
PID 2648 wrote to memory of 5072	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	84
PID 2648 wrote to memory of 4420	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	86
PID 2648 wrote to memory of 4420	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	86
PID 2648 wrote to memory of 4420	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	86
PID 2648 wrote to memory of 2268	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	88
PID 2648 wrote to memory of 2268	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	88
PID 2648 wrote to memory of 2268	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	88
PID 2648 wrote to memory of 1588	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	90
PID 2648 wrote to memory of 1588	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	90
PID 2648 wrote to memory of 1588	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	90
PID 2648 wrote to memory of 1428	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	92
PID 2648 wrote to memory of 1428	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	92
PID 2648 wrote to memory of 1428	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	92
PID 2648 wrote to memory of 2576	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	95
PID 2648 wrote to memory of 2576	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	95
PID 2648 wrote to memory of 2576	2648	2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe	95
PID 1384 wrote to memory of 3912	1384	zuyqgrtr.exe	101
PID 1384 wrote to memory of 3912	1384	zuyqgrtr.exe	101
PID 1384 wrote to memory of 3912	1384	zuyqgrtr.exe	101
PID 1384 wrote to memory of 3912	1384	zuyqgrtr.exe	101
PID 1384 wrote to memory of 3912	1384	zuyqgrtr.exe	101

C:\Users\Admin\AppData\Local\Temp\2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jdbrihxc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5072
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zuyqgrtr.exe" C:\Windows\SysWOW64\jdbrihxc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4420
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jdbrihxc binPath= "C:\Windows\SysWOW64\jdbrihxc\zuyqgrtr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2268
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jdbrihxc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1588
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jdbrihxc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1428
- 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:2576
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2648 -s 664
  2⤵
  - Program crash
  PID:1936

C:\Windows\SysWOW64\jdbrihxc\zuyqgrtr.exe
C:\Windows\SysWOW64\jdbrihxc\zuyqgrtr.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-03_82241fee715e83814c3be4f469b41759_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1384
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3912
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1384 -s 508
  2⤵
  - Program crash
  PID:4352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2648 -ip 2648
1⤵
PID:4644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1384 -ip 1384
1⤵
PID:3284

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\zuyqgrtr.exe

Filesize
14.8MB

MD5
f93223ced4776d2d1b7de51c445557a5

SHA1
613a1dcfe451f5d42ebb4f1c4961e84cde950458

SHA256
142e38a6cece4c4425c9d2ec1ce18522c28c64950a6f923e9ca2128fa04d5c86

SHA512
2a8eb231233723fdba8e27749c2c7945c38b90484480f896027c176faa776c3ad79a77ec3c084002f1df625e4de5a8fa6b31913db28208f076aa3ecf27569381

Download Submit
memory/1384-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1384-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1384-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1384-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2648-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2648-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/2648-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2648-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2648-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/2648-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/3912-14-0x0000000000350000-0x0000000000365000-memory.dmp

Filesize
84KB

Download
memory/3912-16-0x0000000000350000-0x0000000000365000-memory.dmp

Filesize
84KB

Download
memory/3912-17-0x0000000000350000-0x0000000000365000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads