tofsee | 764de042f5f83bc6e5b7f9e4843b783a4e1aebe7e0d9bc4a3eb6ae9f849607f0

General

Target

2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe
Size

14.4MB
MD5

898f8b76a4b79853b2483f0d96d55db8
SHA1

18d283e2c9076d72a2f218517d83aedf04ca031f
SHA256

764de042f5f83bc6e5b7f9e4843b783a4e1aebe7e0d9bc4a3eb6ae9f849607f0
SHA512

bda64aa2d29ca562d5fcb4b164a42f989b6dbad288b93c979d54f6b96c9db7cf8ee4e7b9222f74100d000ba47e63ae4119c9bddf3bfe711539e93510fe996c4e
SSDEEP

49152:KqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP:KqtYc3

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
1632	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\uuhgpbkm\ImagePath = "C:\\Windows\\SysWOW64\\uuhgpbkm\\tkgnedhl.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe

Deletes itself 1 IoCs

pid	Process
1216	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3760	tkgnedhl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3760 set thread context of 1216	3760	tkgnedhl.exe	93

Launches sc.exe 3 IoCs

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

pid	Process
2436	sc.exe
4236	sc.exe
1380	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
3472	3760	WerFault.exe	92
3268	3916	WerFault.exe	81

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tkgnedhl.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3916 wrote to memory of 4788	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	82
PID 3916 wrote to memory of 4788	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	82
PID 3916 wrote to memory of 4788	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	82
PID 3916 wrote to memory of 220	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	84
PID 3916 wrote to memory of 220	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	84
PID 3916 wrote to memory of 220	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	84
PID 3916 wrote to memory of 2436	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	86
PID 3916 wrote to memory of 2436	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	86
PID 3916 wrote to memory of 2436	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	86
PID 3916 wrote to memory of 4236	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	88
PID 3916 wrote to memory of 4236	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	88
PID 3916 wrote to memory of 4236	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	88
PID 3916 wrote to memory of 1380	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	90
PID 3916 wrote to memory of 1380	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	90
PID 3916 wrote to memory of 1380	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	90
PID 3760 wrote to memory of 1216	3760	tkgnedhl.exe	93
PID 3760 wrote to memory of 1216	3760	tkgnedhl.exe	93
PID 3760 wrote to memory of 1216	3760	tkgnedhl.exe	93
PID 3760 wrote to memory of 1216	3760	tkgnedhl.exe	93
PID 3760 wrote to memory of 1216	3760	tkgnedhl.exe	93
PID 3916 wrote to memory of 1632	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	96
PID 3916 wrote to memory of 1632	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	96
PID 3916 wrote to memory of 1632	3916	2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe	96

C:\Users\Admin\AppData\Local\Temp\2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\uuhgpbkm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4788
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tkgnedhl.exe" C:\Windows\SysWOW64\uuhgpbkm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:220
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create uuhgpbkm binPath= "C:\Windows\SysWOW64\uuhgpbkm\tkgnedhl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2436
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description uuhgpbkm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4236
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start uuhgpbkm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1380
- 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:1632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3916 -s 572
  2⤵
  - Program crash
  PID:3268

C:\Windows\SysWOW64\uuhgpbkm\tkgnedhl.exe
C:\Windows\SysWOW64\uuhgpbkm\tkgnedhl.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-22_898f8b76a4b79853b2483f0d96d55db8_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3760
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1216
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3760 -s 536
  2⤵
  - Program crash
  PID:3472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3760 -ip 3760
1⤵
PID:396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3916 -ip 3916
1⤵
PID:3588

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\tkgnedhl.exe

Filesize
11.1MB

MD5
0ebe86ddace953b74b0504def7312840

SHA1
7adf3c20f299ea73afe6ac1042965aef3dff1e99

SHA256
83fbf3dd54cfb6bb10b93154e5770791815eb849d332a1bafb86a6469c08b90a

SHA512
a781776729a121feaf269b8de161fdf02464d621448e97e09bef54b7e69e66e8eece32de2cd24ca347b17071e287baeb1cbbf60e7826246b727bfe5e007ee18c

Download Submit
memory/1216-8-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download
memory/1216-14-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download
memory/1216-15-0x0000000000360000-0x0000000000375000-memory.dmp

Filesize
84KB

Download
memory/3760-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/3916-2-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/3916-1-0x0000000002FF0000-0x00000000030F0000-memory.dmp

Filesize
1024KB

Download
memory/3916-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3916-12-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/3916-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3916-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads