tofsee | b598f6bd5a40129cc3e11e473dc774d3ad4c5c0ae45850ae4b2a282de7051af3

General

Target

2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe
Size

13.4MB
MD5

085c0df426a67559b07390c7e519fa04
SHA1

f7461925cf572b1a4e6185878699a1709d5afa90
SHA256

b598f6bd5a40129cc3e11e473dc774d3ad4c5c0ae45850ae4b2a282de7051af3
SHA512

52643632a7adecadcebeaf57e0334da1dc0a61aec3da1b8a95153b63e9edc49a86a3f341a16069e4e79d505f58876bcda9e722e30e4471ce96f2d48b93c67086
SSDEEP

3072:aLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:DOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
2588	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\pbwpfav\ImagePath = "C:\\Windows\\SysWOW64\\pbwpfav\\gftvjghz.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe

Deletes itself 1 IoCs

pid	Process
4860	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4104	gftvjghz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4104 set thread context of 4860	4104	gftvjghz.exe	101

Launches sc.exe 3 IoCs

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

pid	Process
1556	sc.exe
3704	sc.exe
2760	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
632	4812	WerFault.exe	82
1488	4104	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	gftvjghz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4812 wrote to memory of 4076	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	84
PID 4812 wrote to memory of 4076	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	84
PID 4812 wrote to memory of 4076	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	84
PID 4812 wrote to memory of 4692	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	86
PID 4812 wrote to memory of 4692	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	86
PID 4812 wrote to memory of 4692	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	86
PID 4812 wrote to memory of 3704	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	88
PID 4812 wrote to memory of 3704	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	88
PID 4812 wrote to memory of 3704	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	88
PID 4812 wrote to memory of 2760	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	90
PID 4812 wrote to memory of 2760	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	90
PID 4812 wrote to memory of 2760	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	90
PID 4812 wrote to memory of 1556	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	92
PID 4812 wrote to memory of 1556	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	92
PID 4812 wrote to memory of 1556	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	92
PID 4812 wrote to memory of 2588	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	95
PID 4812 wrote to memory of 2588	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	95
PID 4812 wrote to memory of 2588	4812	2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe	95
PID 4104 wrote to memory of 4860	4104	gftvjghz.exe	101
PID 4104 wrote to memory of 4860	4104	gftvjghz.exe	101
PID 4104 wrote to memory of 4860	4104	gftvjghz.exe	101
PID 4104 wrote to memory of 4860	4104	gftvjghz.exe	101
PID 4104 wrote to memory of 4860	4104	gftvjghz.exe	101

C:\Users\Admin\AppData\Local\Temp\2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4812
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pbwpfav\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gftvjghz.exe" C:\Windows\SysWOW64\pbwpfav\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4692
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pbwpfav binPath= "C:\Windows\SysWOW64\pbwpfav\gftvjghz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pbwpfav "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pbwpfav
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1556
- 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:2588
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 796
  2⤵
  - Program crash
  PID:632

C:\Windows\SysWOW64\pbwpfav\gftvjghz.exe
C:\Windows\SysWOW64\pbwpfav\gftvjghz.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-25_085c0df426a67559b07390c7e519fa04_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4104
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4860
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4104 -s 512
  2⤵
  - Program crash
  PID:1488

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4812 -ip 4812
1⤵
PID:2168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4104 -ip 4104
1⤵
PID:4164

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\gftvjghz.exe

Filesize
14.3MB

MD5
06c60c7147b87a1f50653401bb8cca77

SHA1
898fecfbdec37f39c18f2c67de965a65e066c28e

SHA256
0a288d303c780de21108f4423e6efff7d0cc74b2806f722c87257db2607b3385

SHA512
55703f3fe86ee19e0304c89f3f0e7ccc8a0be342e1fdf7bef5675e898e584c40adfc61eb2205c707eab2465c8fd4a6c32a2bdadadeac6719886d040923eda5fd

Download Submit
memory/4104-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4104-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4104-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4104-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4812-8-0x0000000000680000-0x0000000000693000-memory.dmp

Filesize
76KB

Download
memory/4812-1-0x0000000000720000-0x0000000000820000-memory.dmp

Filesize
1024KB

Download
memory/4812-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4812-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4812-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4812-2-0x0000000000680000-0x0000000000693000-memory.dmp

Filesize
76KB

Download
memory/4860-14-0x0000000000E30000-0x0000000000E45000-memory.dmp

Filesize
84KB

Download
memory/4860-16-0x0000000000E30000-0x0000000000E45000-memory.dmp

Filesize
84KB

Download
memory/4860-19-0x0000000000E30000-0x0000000000E45000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads